hbase-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From git-site-r...@apache.org
Subject [13/28] hbase-site git commit: Published site at .
Date Sun, 17 Dec 2017 15:17:52 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/48bd3915/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKUtil.NodeAndData.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKUtil.NodeAndData.html b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKUtil.NodeAndData.html
index 81f531b..04be024 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKUtil.NodeAndData.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKUtil.NodeAndData.html
@@ -53,2036 +53,2078 @@
 <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.AuthUtil;<a name="line.45"></a>
 <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.46"></a>
 <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.HConstants;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.security.Superusers;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ReplicationProtos;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil.ZKUtilOp.CreateAndFailSilent;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil.ZKUtilOp.DeleteNodeFailSilent;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil.ZKUtilOp.SetData;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.security.SecurityUtil;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.security.authentication.util.KerberosUtil;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.zookeeper.AsyncCallback;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.zookeeper.CreateMode;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.zookeeper.KeeperException;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.zookeeper.KeeperException.NoNodeException;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.zookeeper.Op;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.zookeeper.Watcher;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.zookeeper.ZooDefs.Ids;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.zookeeper.ZooDefs.Perms;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.zookeeper.ZooKeeper;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.zookeeper.client.ZooKeeperSaslClient;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.zookeeper.data.ACL;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.zookeeper.data.Id;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.zookeeper.data.Stat;<a name="line.74"></a>
-<span class="sourceLineNo">075</span>import org.apache.zookeeper.proto.CreateRequest;<a name="line.75"></a>
-<span class="sourceLineNo">076</span>import org.apache.zookeeper.proto.DeleteRequest;<a name="line.76"></a>
-<span class="sourceLineNo">077</span>import org.apache.zookeeper.proto.SetDataRequest;<a name="line.77"></a>
-<span class="sourceLineNo">078</span>import org.apache.zookeeper.server.ZooKeeperSaslServer;<a name="line.78"></a>
-<span class="sourceLineNo">079</span><a name="line.79"></a>
-<span class="sourceLineNo">080</span>/**<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * Internal HBase utility class for ZooKeeper.<a name="line.81"></a>
-<span class="sourceLineNo">082</span> *<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * &lt;p&gt;Contains only static methods and constants.<a name="line.83"></a>
-<span class="sourceLineNo">084</span> *<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * &lt;p&gt;Methods all throw {@link KeeperException} if there is an unexpected<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * zookeeper exception, so callers of these methods must handle appropriately.<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * If ZK is required for the operation, the server will need to be aborted.<a name="line.87"></a>
-<span class="sourceLineNo">088</span> */<a name="line.88"></a>
-<span class="sourceLineNo">089</span>@InterfaceAudience.Private<a name="line.89"></a>
-<span class="sourceLineNo">090</span>public class ZKUtil {<a name="line.90"></a>
-<span class="sourceLineNo">091</span>  private static final Log LOG = LogFactory.getLog(ZKUtil.class);<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span>  private static int zkDumpConnectionTimeOut;<a name="line.93"></a>
-<span class="sourceLineNo">094</span><a name="line.94"></a>
-<span class="sourceLineNo">095</span>  /**<a name="line.95"></a>
-<span class="sourceLineNo">096</span>   * Creates a new connection to ZooKeeper, pulling settings and ensemble config<a name="line.96"></a>
-<span class="sourceLineNo">097</span>   * from the specified configuration object using methods from {@link ZKConfig}.<a name="line.97"></a>
-<span class="sourceLineNo">098</span>   *<a name="line.98"></a>
-<span class="sourceLineNo">099</span>   * Sets the connection status monitoring watcher to the specified watcher.<a name="line.99"></a>
-<span class="sourceLineNo">100</span>   *<a name="line.100"></a>
-<span class="sourceLineNo">101</span>   * @param conf configuration to pull ensemble and other settings from<a name="line.101"></a>
-<span class="sourceLineNo">102</span>   * @param watcher watcher to monitor connection changes<a name="line.102"></a>
-<span class="sourceLineNo">103</span>   * @return connection to zookeeper<a name="line.103"></a>
-<span class="sourceLineNo">104</span>   * @throws IOException if unable to connect to zk or config problem<a name="line.104"></a>
-<span class="sourceLineNo">105</span>   */<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  public static RecoverableZooKeeper connect(Configuration conf, Watcher watcher)<a name="line.106"></a>
-<span class="sourceLineNo">107</span>  throws IOException {<a name="line.107"></a>
-<span class="sourceLineNo">108</span>    String ensemble = ZKConfig.getZKQuorumServersString(conf);<a name="line.108"></a>
-<span class="sourceLineNo">109</span>    return connect(conf, ensemble, watcher);<a name="line.109"></a>
-<span class="sourceLineNo">110</span>  }<a name="line.110"></a>
-<span class="sourceLineNo">111</span><a name="line.111"></a>
-<span class="sourceLineNo">112</span>  public static RecoverableZooKeeper connect(Configuration conf, String ensemble,<a name="line.112"></a>
-<span class="sourceLineNo">113</span>      Watcher watcher)<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  throws IOException {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    return connect(conf, ensemble, watcher, null);<a name="line.115"></a>
-<span class="sourceLineNo">116</span>  }<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
-<span class="sourceLineNo">118</span>  public static RecoverableZooKeeper connect(Configuration conf, String ensemble,<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      Watcher watcher, final String identifier)<a name="line.119"></a>
-<span class="sourceLineNo">120</span>  throws IOException {<a name="line.120"></a>
-<span class="sourceLineNo">121</span>    if(ensemble == null) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span>      throw new IOException("Unable to determine ZooKeeper ensemble");<a name="line.122"></a>
-<span class="sourceLineNo">123</span>    }<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    int timeout = conf.getInt(HConstants.ZK_SESSION_TIMEOUT,<a name="line.124"></a>
-<span class="sourceLineNo">125</span>        HConstants.DEFAULT_ZK_SESSION_TIMEOUT);<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    if (LOG.isTraceEnabled()) {<a name="line.126"></a>
-<span class="sourceLineNo">127</span>      LOG.trace(identifier + " opening connection to ZooKeeper ensemble=" + ensemble);<a name="line.127"></a>
-<span class="sourceLineNo">128</span>    }<a name="line.128"></a>
-<span class="sourceLineNo">129</span>    int retry = conf.getInt("zookeeper.recovery.retry", 3);<a name="line.129"></a>
-<span class="sourceLineNo">130</span>    int retryIntervalMillis =<a name="line.130"></a>
-<span class="sourceLineNo">131</span>      conf.getInt("zookeeper.recovery.retry.intervalmill", 1000);<a name="line.131"></a>
-<span class="sourceLineNo">132</span>    int maxSleepTime = conf.getInt("zookeeper.recovery.retry.maxsleeptime", 60000);<a name="line.132"></a>
-<span class="sourceLineNo">133</span>    zkDumpConnectionTimeOut = conf.getInt("zookeeper.dump.connection.timeout",<a name="line.133"></a>
-<span class="sourceLineNo">134</span>        1000);<a name="line.134"></a>
-<span class="sourceLineNo">135</span>    return new RecoverableZooKeeper(ensemble, timeout, watcher,<a name="line.135"></a>
-<span class="sourceLineNo">136</span>        retry, retryIntervalMillis, maxSleepTime, identifier);<a name="line.136"></a>
-<span class="sourceLineNo">137</span>  }<a name="line.137"></a>
-<span class="sourceLineNo">138</span><a name="line.138"></a>
-<span class="sourceLineNo">139</span>  /**<a name="line.139"></a>
-<span class="sourceLineNo">140</span>   * Log in the current zookeeper server process using the given configuration<a name="line.140"></a>
-<span class="sourceLineNo">141</span>   * keys for the credential file and login principal.<a name="line.141"></a>
-<span class="sourceLineNo">142</span>   *<a name="line.142"></a>
-<span class="sourceLineNo">143</span>   * &lt;p&gt;&lt;strong&gt;This is only applicable when running on secure hbase&lt;/strong&gt;<a name="line.143"></a>
-<span class="sourceLineNo">144</span>   * On regular HBase (without security features), this will safely be ignored.<a name="line.144"></a>
-<span class="sourceLineNo">145</span>   * &lt;/p&gt;<a name="line.145"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.security.Superusers;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil.ZKUtilOp.CreateAndFailSilent;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil.ZKUtilOp.DeleteNodeFailSilent;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.zookeeper.ZKUtil.ZKUtilOp.SetData;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.security.SecurityUtil;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.security.authentication.util.KerberosUtil;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.zookeeper.AsyncCallback;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.zookeeper.CreateMode;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.zookeeper.KeeperException;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.zookeeper.KeeperException.NoNodeException;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.zookeeper.Op;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.zookeeper.Watcher;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.zookeeper.ZooDefs.Ids;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.zookeeper.ZooDefs.Perms;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import org.apache.zookeeper.ZooKeeper;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import org.apache.zookeeper.client.ZooKeeperSaslClient;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>import org.apache.zookeeper.data.ACL;<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.zookeeper.data.Id;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.zookeeper.data.Stat;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.zookeeper.proto.CreateRequest;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.zookeeper.proto.DeleteRequest;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.zookeeper.proto.SetDataRequest;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.zookeeper.server.ZooKeeperSaslServer;<a name="line.75"></a>
+<span class="sourceLineNo">076</span><a name="line.76"></a>
+<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException;<a name="line.77"></a>
+<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.78"></a>
+<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ReplicationProtos;<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>/**<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * Internal HBase utility class for ZooKeeper.<a name="line.82"></a>
+<span class="sourceLineNo">083</span> *<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * &lt;p&gt;Contains only static methods and constants.<a name="line.84"></a>
+<span class="sourceLineNo">085</span> *<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * &lt;p&gt;Methods all throw {@link KeeperException} if there is an unexpected<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * zookeeper exception, so callers of these methods must handle appropriately.<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * If ZK is required for the operation, the server will need to be aborted.<a name="line.88"></a>
+<span class="sourceLineNo">089</span> */<a name="line.89"></a>
+<span class="sourceLineNo">090</span>@InterfaceAudience.Private<a name="line.90"></a>
+<span class="sourceLineNo">091</span>public final class ZKUtil {<a name="line.91"></a>
+<span class="sourceLineNo">092</span>  private static final Log LOG = LogFactory.getLog(ZKUtil.class);<a name="line.92"></a>
+<span class="sourceLineNo">093</span><a name="line.93"></a>
+<span class="sourceLineNo">094</span>  private static int zkDumpConnectionTimeOut;<a name="line.94"></a>
+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span>  private ZKUtil() {<a name="line.96"></a>
+<span class="sourceLineNo">097</span>  }<a name="line.97"></a>
+<span class="sourceLineNo">098</span><a name="line.98"></a>
+<span class="sourceLineNo">099</span>  /**<a name="line.99"></a>
+<span class="sourceLineNo">100</span>   * Creates a new connection to ZooKeeper, pulling settings and ensemble config<a name="line.100"></a>
+<span class="sourceLineNo">101</span>   * from the specified configuration object using methods from {@link ZKConfig}.<a name="line.101"></a>
+<span class="sourceLineNo">102</span>   *<a name="line.102"></a>
+<span class="sourceLineNo">103</span>   * Sets the connection status monitoring watcher to the specified watcher.<a name="line.103"></a>
+<span class="sourceLineNo">104</span>   *<a name="line.104"></a>
+<span class="sourceLineNo">105</span>   * @param conf configuration to pull ensemble and other settings from<a name="line.105"></a>
+<span class="sourceLineNo">106</span>   * @param watcher watcher to monitor connection changes<a name="line.106"></a>
+<span class="sourceLineNo">107</span>   * @return connection to zookeeper<a name="line.107"></a>
+<span class="sourceLineNo">108</span>   * @throws IOException if unable to connect to zk or config problem<a name="line.108"></a>
+<span class="sourceLineNo">109</span>   */<a name="line.109"></a>
+<span class="sourceLineNo">110</span>  public static RecoverableZooKeeper connect(Configuration conf, Watcher watcher)<a name="line.110"></a>
+<span class="sourceLineNo">111</span>  throws IOException {<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    String ensemble = ZKConfig.getZKQuorumServersString(conf);<a name="line.112"></a>
+<span class="sourceLineNo">113</span>    return connect(conf, ensemble, watcher);<a name="line.113"></a>
+<span class="sourceLineNo">114</span>  }<a name="line.114"></a>
+<span class="sourceLineNo">115</span><a name="line.115"></a>
+<span class="sourceLineNo">116</span>  public static RecoverableZooKeeper connect(Configuration conf, String ensemble,<a name="line.116"></a>
+<span class="sourceLineNo">117</span>      Watcher watcher)<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  throws IOException {<a name="line.118"></a>
+<span class="sourceLineNo">119</span>    return connect(conf, ensemble, watcher, null);<a name="line.119"></a>
+<span class="sourceLineNo">120</span>  }<a name="line.120"></a>
+<span class="sourceLineNo">121</span><a name="line.121"></a>
+<span class="sourceLineNo">122</span>  public static RecoverableZooKeeper connect(Configuration conf, String ensemble,<a name="line.122"></a>
+<span class="sourceLineNo">123</span>      Watcher watcher, final String identifier)<a name="line.123"></a>
+<span class="sourceLineNo">124</span>  throws IOException {<a name="line.124"></a>
+<span class="sourceLineNo">125</span>    if(ensemble == null) {<a name="line.125"></a>
+<span class="sourceLineNo">126</span>      throw new IOException("Unable to determine ZooKeeper ensemble");<a name="line.126"></a>
+<span class="sourceLineNo">127</span>    }<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    int timeout = conf.getInt(HConstants.ZK_SESSION_TIMEOUT,<a name="line.128"></a>
+<span class="sourceLineNo">129</span>        HConstants.DEFAULT_ZK_SESSION_TIMEOUT);<a name="line.129"></a>
+<span class="sourceLineNo">130</span>    if (LOG.isTraceEnabled()) {<a name="line.130"></a>
+<span class="sourceLineNo">131</span>      LOG.trace(identifier + " opening connection to ZooKeeper ensemble=" + ensemble);<a name="line.131"></a>
+<span class="sourceLineNo">132</span>    }<a name="line.132"></a>
+<span class="sourceLineNo">133</span>    int retry = conf.getInt("zookeeper.recovery.retry", 3);<a name="line.133"></a>
+<span class="sourceLineNo">134</span>    int retryIntervalMillis =<a name="line.134"></a>
+<span class="sourceLineNo">135</span>      conf.getInt("zookeeper.recovery.retry.intervalmill", 1000);<a name="line.135"></a>
+<span class="sourceLineNo">136</span>    int maxSleepTime = conf.getInt("zookeeper.recovery.retry.maxsleeptime", 60000);<a name="line.136"></a>
+<span class="sourceLineNo">137</span>    zkDumpConnectionTimeOut = conf.getInt("zookeeper.dump.connection.timeout",<a name="line.137"></a>
+<span class="sourceLineNo">138</span>        1000);<a name="line.138"></a>
+<span class="sourceLineNo">139</span>    return new RecoverableZooKeeper(ensemble, timeout, watcher,<a name="line.139"></a>
+<span class="sourceLineNo">140</span>        retry, retryIntervalMillis, maxSleepTime, identifier);<a name="line.140"></a>
+<span class="sourceLineNo">141</span>  }<a name="line.141"></a>
+<span class="sourceLineNo">142</span><a name="line.142"></a>
+<span class="sourceLineNo">143</span>  /**<a name="line.143"></a>
+<span class="sourceLineNo">144</span>   * Log in the current zookeeper server process using the given configuration<a name="line.144"></a>
+<span class="sourceLineNo">145</span>   * keys for the credential file and login principal.<a name="line.145"></a>
 <span class="sourceLineNo">146</span>   *<a name="line.146"></a>
-<span class="sourceLineNo">147</span>   * @param conf The configuration data to use<a name="line.147"></a>
-<span class="sourceLineNo">148</span>   * @param keytabFileKey Property key used to configure the path to the credential file<a name="line.148"></a>
-<span class="sourceLineNo">149</span>   * @param userNameKey Property key used to configure the login principal<a name="line.149"></a>
-<span class="sourceLineNo">150</span>   * @param hostname Current hostname to use in any credentials<a name="line.150"></a>
-<span class="sourceLineNo">151</span>   * @throws IOException underlying exception from SecurityUtil.login() call<a name="line.151"></a>
-<span class="sourceLineNo">152</span>   */<a name="line.152"></a>
-<span class="sourceLineNo">153</span>  public static void loginServer(Configuration conf, String keytabFileKey,<a name="line.153"></a>
-<span class="sourceLineNo">154</span>      String userNameKey, String hostname) throws IOException {<a name="line.154"></a>
-<span class="sourceLineNo">155</span>    login(conf, keytabFileKey, userNameKey, hostname,<a name="line.155"></a>
-<span class="sourceLineNo">156</span>          ZooKeeperSaslServer.LOGIN_CONTEXT_NAME_KEY,<a name="line.156"></a>
-<span class="sourceLineNo">157</span>          JaasConfiguration.SERVER_KEYTAB_KERBEROS_CONFIG_NAME);<a name="line.157"></a>
-<span class="sourceLineNo">158</span>  }<a name="line.158"></a>
-<span class="sourceLineNo">159</span><a name="line.159"></a>
-<span class="sourceLineNo">160</span>  /**<a name="line.160"></a>
-<span class="sourceLineNo">161</span>   * Log in the current zookeeper client using the given configuration<a name="line.161"></a>
-<span class="sourceLineNo">162</span>   * keys for the credential file and login principal.<a name="line.162"></a>
-<span class="sourceLineNo">163</span>   *<a name="line.163"></a>
-<span class="sourceLineNo">164</span>   * &lt;p&gt;&lt;strong&gt;This is only applicable when running on secure hbase&lt;/strong&gt;<a name="line.164"></a>
-<span class="sourceLineNo">165</span>   * On regular HBase (without security features), this will safely be ignored.<a name="line.165"></a>
-<span class="sourceLineNo">166</span>   * &lt;/p&gt;<a name="line.166"></a>
+<span class="sourceLineNo">147</span>   * &lt;p&gt;&lt;strong&gt;This is only applicable when running on secure hbase&lt;/strong&gt;<a name="line.147"></a>
+<span class="sourceLineNo">148</span>   * On regular HBase (without security features), this will safely be ignored.<a name="line.148"></a>
+<span class="sourceLineNo">149</span>   * &lt;/p&gt;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>   *<a name="line.150"></a>
+<span class="sourceLineNo">151</span>   * @param conf The configuration data to use<a name="line.151"></a>
+<span class="sourceLineNo">152</span>   * @param keytabFileKey Property key used to configure the path to the credential file<a name="line.152"></a>
+<span class="sourceLineNo">153</span>   * @param userNameKey Property key used to configure the login principal<a name="line.153"></a>
+<span class="sourceLineNo">154</span>   * @param hostname Current hostname to use in any credentials<a name="line.154"></a>
+<span class="sourceLineNo">155</span>   * @throws IOException underlying exception from SecurityUtil.login() call<a name="line.155"></a>
+<span class="sourceLineNo">156</span>   */<a name="line.156"></a>
+<span class="sourceLineNo">157</span>  public static void loginServer(Configuration conf, String keytabFileKey,<a name="line.157"></a>
+<span class="sourceLineNo">158</span>      String userNameKey, String hostname) throws IOException {<a name="line.158"></a>
+<span class="sourceLineNo">159</span>    login(conf, keytabFileKey, userNameKey, hostname,<a name="line.159"></a>
+<span class="sourceLineNo">160</span>          ZooKeeperSaslServer.LOGIN_CONTEXT_NAME_KEY,<a name="line.160"></a>
+<span class="sourceLineNo">161</span>          JaasConfiguration.SERVER_KEYTAB_KERBEROS_CONFIG_NAME);<a name="line.161"></a>
+<span class="sourceLineNo">162</span>  }<a name="line.162"></a>
+<span class="sourceLineNo">163</span><a name="line.163"></a>
+<span class="sourceLineNo">164</span>  /**<a name="line.164"></a>
+<span class="sourceLineNo">165</span>   * Log in the current zookeeper client using the given configuration<a name="line.165"></a>
+<span class="sourceLineNo">166</span>   * keys for the credential file and login principal.<a name="line.166"></a>
 <span class="sourceLineNo">167</span>   *<a name="line.167"></a>
-<span class="sourceLineNo">168</span>   * @param conf The configuration data to use<a name="line.168"></a>
-<span class="sourceLineNo">169</span>   * @param keytabFileKey Property key used to configure the path to the credential file<a name="line.169"></a>
-<span class="sourceLineNo">170</span>   * @param userNameKey Property key used to configure the login principal<a name="line.170"></a>
-<span class="sourceLineNo">171</span>   * @param hostname Current hostname to use in any credentials<a name="line.171"></a>
-<span class="sourceLineNo">172</span>   * @throws IOException underlying exception from SecurityUtil.login() call<a name="line.172"></a>
-<span class="sourceLineNo">173</span>   */<a name="line.173"></a>
-<span class="sourceLineNo">174</span>  public static void loginClient(Configuration conf, String keytabFileKey,<a name="line.174"></a>
-<span class="sourceLineNo">175</span>      String userNameKey, String hostname) throws IOException {<a name="line.175"></a>
-<span class="sourceLineNo">176</span>    login(conf, keytabFileKey, userNameKey, hostname,<a name="line.176"></a>
-<span class="sourceLineNo">177</span>          ZooKeeperSaslClient.LOGIN_CONTEXT_NAME_KEY,<a name="line.177"></a>
-<span class="sourceLineNo">178</span>          JaasConfiguration.CLIENT_KEYTAB_KERBEROS_CONFIG_NAME);<a name="line.178"></a>
-<span class="sourceLineNo">179</span>  }<a name="line.179"></a>
-<span class="sourceLineNo">180</span><a name="line.180"></a>
-<span class="sourceLineNo">181</span>  /**<a name="line.181"></a>
-<span class="sourceLineNo">182</span>   * Log in the current process using the given configuration keys for the<a name="line.182"></a>
-<span class="sourceLineNo">183</span>   * credential file and login principal.<a name="line.183"></a>
-<span class="sourceLineNo">184</span>   *<a name="line.184"></a>
-<span class="sourceLineNo">185</span>   * &lt;p&gt;&lt;strong&gt;This is only applicable when running on secure hbase&lt;/strong&gt;<a name="line.185"></a>
-<span class="sourceLineNo">186</span>   * On regular HBase (without security features), this will safely be ignored.<a name="line.186"></a>
-<span class="sourceLineNo">187</span>   * &lt;/p&gt;<a name="line.187"></a>
+<span class="sourceLineNo">168</span>   * &lt;p&gt;&lt;strong&gt;This is only applicable when running on secure hbase&lt;/strong&gt;<a name="line.168"></a>
+<span class="sourceLineNo">169</span>   * On regular HBase (without security features), this will safely be ignored.<a name="line.169"></a>
+<span class="sourceLineNo">170</span>   * &lt;/p&gt;<a name="line.170"></a>
+<span class="sourceLineNo">171</span>   *<a name="line.171"></a>
+<span class="sourceLineNo">172</span>   * @param conf The configuration data to use<a name="line.172"></a>
+<span class="sourceLineNo">173</span>   * @param keytabFileKey Property key used to configure the path to the credential file<a name="line.173"></a>
+<span class="sourceLineNo">174</span>   * @param userNameKey Property key used to configure the login principal<a name="line.174"></a>
+<span class="sourceLineNo">175</span>   * @param hostname Current hostname to use in any credentials<a name="line.175"></a>
+<span class="sourceLineNo">176</span>   * @throws IOException underlying exception from SecurityUtil.login() call<a name="line.176"></a>
+<span class="sourceLineNo">177</span>   */<a name="line.177"></a>
+<span class="sourceLineNo">178</span>  public static void loginClient(Configuration conf, String keytabFileKey,<a name="line.178"></a>
+<span class="sourceLineNo">179</span>      String userNameKey, String hostname) throws IOException {<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    login(conf, keytabFileKey, userNameKey, hostname,<a name="line.180"></a>
+<span class="sourceLineNo">181</span>          ZooKeeperSaslClient.LOGIN_CONTEXT_NAME_KEY,<a name="line.181"></a>
+<span class="sourceLineNo">182</span>          JaasConfiguration.CLIENT_KEYTAB_KERBEROS_CONFIG_NAME);<a name="line.182"></a>
+<span class="sourceLineNo">183</span>  }<a name="line.183"></a>
+<span class="sourceLineNo">184</span><a name="line.184"></a>
+<span class="sourceLineNo">185</span>  /**<a name="line.185"></a>
+<span class="sourceLineNo">186</span>   * Log in the current process using the given configuration keys for the<a name="line.186"></a>
+<span class="sourceLineNo">187</span>   * credential file and login principal.<a name="line.187"></a>
 <span class="sourceLineNo">188</span>   *<a name="line.188"></a>
-<span class="sourceLineNo">189</span>   * @param conf The configuration data to use<a name="line.189"></a>
-<span class="sourceLineNo">190</span>   * @param keytabFileKey Property key used to configure the path to the credential file<a name="line.190"></a>
-<span class="sourceLineNo">191</span>   * @param userNameKey Property key used to configure the login principal<a name="line.191"></a>
-<span class="sourceLineNo">192</span>   * @param hostname Current hostname to use in any credentials<a name="line.192"></a>
-<span class="sourceLineNo">193</span>   * @param loginContextProperty property name to expose the entry name<a name="line.193"></a>
-<span class="sourceLineNo">194</span>   * @param loginContextName jaas entry name<a name="line.194"></a>
-<span class="sourceLineNo">195</span>   * @throws IOException underlying exception from SecurityUtil.login() call<a name="line.195"></a>
-<span class="sourceLineNo">196</span>   */<a name="line.196"></a>
-<span class="sourceLineNo">197</span>  private static void login(Configuration conf, String keytabFileKey,<a name="line.197"></a>
-<span class="sourceLineNo">198</span>      String userNameKey, String hostname,<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      String loginContextProperty, String loginContextName)<a name="line.199"></a>
-<span class="sourceLineNo">200</span>      throws IOException {<a name="line.200"></a>
-<span class="sourceLineNo">201</span>    if (!isSecureZooKeeper(conf))<a name="line.201"></a>
-<span class="sourceLineNo">202</span>      return;<a name="line.202"></a>
-<span class="sourceLineNo">203</span><a name="line.203"></a>
-<span class="sourceLineNo">204</span>    // User has specified a jaas.conf, keep this one as the good one.<a name="line.204"></a>
-<span class="sourceLineNo">205</span>    // HBASE_OPTS="-Djava.security.auth.login.config=jaas.conf"<a name="line.205"></a>
-<span class="sourceLineNo">206</span>    if (System.getProperty("java.security.auth.login.config") != null)<a name="line.206"></a>
-<span class="sourceLineNo">207</span>      return;<a name="line.207"></a>
+<span class="sourceLineNo">189</span>   * &lt;p&gt;&lt;strong&gt;This is only applicable when running on secure hbase&lt;/strong&gt;<a name="line.189"></a>
+<span class="sourceLineNo">190</span>   * On regular HBase (without security features), this will safely be ignored.<a name="line.190"></a>
+<span class="sourceLineNo">191</span>   * &lt;/p&gt;<a name="line.191"></a>
+<span class="sourceLineNo">192</span>   *<a name="line.192"></a>
+<span class="sourceLineNo">193</span>   * @param conf The configuration data to use<a name="line.193"></a>
+<span class="sourceLineNo">194</span>   * @param keytabFileKey Property key used to configure the path to the credential file<a name="line.194"></a>
+<span class="sourceLineNo">195</span>   * @param userNameKey Property key used to configure the login principal<a name="line.195"></a>
+<span class="sourceLineNo">196</span>   * @param hostname Current hostname to use in any credentials<a name="line.196"></a>
+<span class="sourceLineNo">197</span>   * @param loginContextProperty property name to expose the entry name<a name="line.197"></a>
+<span class="sourceLineNo">198</span>   * @param loginContextName jaas entry name<a name="line.198"></a>
+<span class="sourceLineNo">199</span>   * @throws IOException underlying exception from SecurityUtil.login() call<a name="line.199"></a>
+<span class="sourceLineNo">200</span>   */<a name="line.200"></a>
+<span class="sourceLineNo">201</span>  private static void login(Configuration conf, String keytabFileKey,<a name="line.201"></a>
+<span class="sourceLineNo">202</span>      String userNameKey, String hostname,<a name="line.202"></a>
+<span class="sourceLineNo">203</span>      String loginContextProperty, String loginContextName)<a name="line.203"></a>
+<span class="sourceLineNo">204</span>      throws IOException {<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    if (!isSecureZooKeeper(conf)) {<a name="line.205"></a>
+<span class="sourceLineNo">206</span>      return;<a name="line.206"></a>
+<span class="sourceLineNo">207</span>    }<a name="line.207"></a>
 <span class="sourceLineNo">208</span><a name="line.208"></a>
-<span class="sourceLineNo">209</span>    // No keytab specified, no auth<a name="line.209"></a>
-<span class="sourceLineNo">210</span>    String keytabFilename = conf.get(keytabFileKey);<a name="line.210"></a>
-<span class="sourceLineNo">211</span>    if (keytabFilename == null) {<a name="line.211"></a>
-<span class="sourceLineNo">212</span>      LOG.warn("no keytab specified for: " + keytabFileKey);<a name="line.212"></a>
-<span class="sourceLineNo">213</span>      return;<a name="line.213"></a>
-<span class="sourceLineNo">214</span>    }<a name="line.214"></a>
-<span class="sourceLineNo">215</span><a name="line.215"></a>
-<span class="sourceLineNo">216</span>    String principalConfig = conf.get(userNameKey, System.getProperty("user.name"));<a name="line.216"></a>
-<span class="sourceLineNo">217</span>    String principalName = SecurityUtil.getServerPrincipal(principalConfig, hostname);<a name="line.217"></a>
-<span class="sourceLineNo">218</span><a name="line.218"></a>
-<span class="sourceLineNo">219</span>    // Initialize the "jaas.conf" for keyTab/principal,<a name="line.219"></a>
-<span class="sourceLineNo">220</span>    // If keyTab is not specified use the Ticket Cache.<a name="line.220"></a>
-<span class="sourceLineNo">221</span>    // and set the zookeeper login context name.<a name="line.221"></a>
-<span class="sourceLineNo">222</span>    JaasConfiguration jaasConf = new JaasConfiguration(loginContextName,<a name="line.222"></a>
-<span class="sourceLineNo">223</span>        principalName, keytabFilename);<a name="line.223"></a>
-<span class="sourceLineNo">224</span>    javax.security.auth.login.Configuration.setConfiguration(jaasConf);<a name="line.224"></a>
-<span class="sourceLineNo">225</span>    System.setProperty(loginContextProperty, loginContextName);<a name="line.225"></a>
-<span class="sourceLineNo">226</span>  }<a name="line.226"></a>
-<span class="sourceLineNo">227</span><a name="line.227"></a>
-<span class="sourceLineNo">228</span>  /**<a name="line.228"></a>
-<span class="sourceLineNo">229</span>   * A JAAS configuration that defines the login modules that we want to use for login.<a name="line.229"></a>
-<span class="sourceLineNo">230</span>   */<a name="line.230"></a>
-<span class="sourceLineNo">231</span>  private static class JaasConfiguration extends javax.security.auth.login.Configuration {<a name="line.231"></a>
-<span class="sourceLineNo">232</span>    private static final String SERVER_KEYTAB_KERBEROS_CONFIG_NAME =<a name="line.232"></a>
-<span class="sourceLineNo">233</span>      "zookeeper-server-keytab-kerberos";<a name="line.233"></a>
-<span class="sourceLineNo">234</span>    private static final String CLIENT_KEYTAB_KERBEROS_CONFIG_NAME =<a name="line.234"></a>
-<span class="sourceLineNo">235</span>      "zookeeper-client-keytab-kerberos";<a name="line.235"></a>
-<span class="sourceLineNo">236</span><a name="line.236"></a>
-<span class="sourceLineNo">237</span>    private static final Map&lt;String, String&gt; BASIC_JAAS_OPTIONS = new HashMap&lt;&gt;();<a name="line.237"></a>
-<span class="sourceLineNo">238</span>    static {<a name="line.238"></a>
-<span class="sourceLineNo">239</span>      String jaasEnvVar = System.getenv("HBASE_JAAS_DEBUG");<a name="line.239"></a>
-<span class="sourceLineNo">240</span>      if (jaasEnvVar != null &amp;&amp; "true".equalsIgnoreCase(jaasEnvVar)) {<a name="line.240"></a>
-<span class="sourceLineNo">241</span>        BASIC_JAAS_OPTIONS.put("debug", "true");<a name="line.241"></a>
-<span class="sourceLineNo">242</span>      }<a name="line.242"></a>
-<span class="sourceLineNo">243</span>    }<a name="line.243"></a>
-<span class="sourceLineNo">244</span><a name="line.244"></a>
-<span class="sourceLineNo">245</span>    private static final Map&lt;String,String&gt; KEYTAB_KERBEROS_OPTIONS = new HashMap&lt;&gt;();<a name="line.245"></a>
-<span class="sourceLineNo">246</span>    static {<a name="line.246"></a>
-<span class="sourceLineNo">247</span>      KEYTAB_KERBEROS_OPTIONS.put("doNotPrompt", "true");<a name="line.247"></a>
-<span class="sourceLineNo">248</span>      KEYTAB_KERBEROS_OPTIONS.put("storeKey", "true");<a name="line.248"></a>
-<span class="sourceLineNo">249</span>      KEYTAB_KERBEROS_OPTIONS.put("refreshKrb5Config", "true");<a name="line.249"></a>
-<span class="sourceLineNo">250</span>      KEYTAB_KERBEROS_OPTIONS.putAll(BASIC_JAAS_OPTIONS);<a name="line.250"></a>
-<span class="sourceLineNo">251</span>    }<a name="line.251"></a>
-<span class="sourceLineNo">252</span><a name="line.252"></a>
-<span class="sourceLineNo">253</span>    private static final AppConfigurationEntry KEYTAB_KERBEROS_LOGIN =<a name="line.253"></a>
-<span class="sourceLineNo">254</span>      new AppConfigurationEntry(KerberosUtil.getKrb5LoginModuleName(),<a name="line.254"></a>
-<span class="sourceLineNo">255</span>                                LoginModuleControlFlag.REQUIRED,<a name="line.255"></a>
-<span class="sourceLineNo">256</span>                                KEYTAB_KERBEROS_OPTIONS);<a name="line.256"></a>
-<span class="sourceLineNo">257</span><a name="line.257"></a>
-<span class="sourceLineNo">258</span>    private static final AppConfigurationEntry[] KEYTAB_KERBEROS_CONF =<a name="line.258"></a>
-<span class="sourceLineNo">259</span>      new AppConfigurationEntry[]{KEYTAB_KERBEROS_LOGIN};<a name="line.259"></a>
-<span class="sourceLineNo">260</span><a name="line.260"></a>
-<span class="sourceLineNo">261</span>    private javax.security.auth.login.Configuration baseConfig;<a name="line.261"></a>
-<span class="sourceLineNo">262</span>    private final String loginContextName;<a name="line.262"></a>
-<span class="sourceLineNo">263</span>    private final boolean useTicketCache;<a name="line.263"></a>
-<span class="sourceLineNo">264</span>    private final String keytabFile;<a name="line.264"></a>
-<span class="sourceLineNo">265</span>    private final String principal;<a name="line.265"></a>
+<span class="sourceLineNo">209</span>    // User has specified a jaas.conf, keep this one as the good one.<a name="line.209"></a>
+<span class="sourceLineNo">210</span>    // HBASE_OPTS="-Djava.security.auth.login.config=jaas.conf"<a name="line.210"></a>
+<span class="sourceLineNo">211</span>    if (System.getProperty("java.security.auth.login.config") != null) {<a name="line.211"></a>
+<span class="sourceLineNo">212</span>      return;<a name="line.212"></a>
+<span class="sourceLineNo">213</span>    }<a name="line.213"></a>
+<span class="sourceLineNo">214</span><a name="line.214"></a>
+<span class="sourceLineNo">215</span>    // No keytab specified, no auth<a name="line.215"></a>
+<span class="sourceLineNo">216</span>    String keytabFilename = conf.get(keytabFileKey);<a name="line.216"></a>
+<span class="sourceLineNo">217</span>    if (keytabFilename == null) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span>      LOG.warn("no keytab specified for: " + keytabFileKey);<a name="line.218"></a>
+<span class="sourceLineNo">219</span>      return;<a name="line.219"></a>
+<span class="sourceLineNo">220</span>    }<a name="line.220"></a>
+<span class="sourceLineNo">221</span><a name="line.221"></a>
+<span class="sourceLineNo">222</span>    String principalConfig = conf.get(userNameKey, System.getProperty("user.name"));<a name="line.222"></a>
+<span class="sourceLineNo">223</span>    String principalName = SecurityUtil.getServerPrincipal(principalConfig, hostname);<a name="line.223"></a>
+<span class="sourceLineNo">224</span><a name="line.224"></a>
+<span class="sourceLineNo">225</span>    // Initialize the "jaas.conf" for keyTab/principal,<a name="line.225"></a>
+<span class="sourceLineNo">226</span>    // If keyTab is not specified use the Ticket Cache.<a name="line.226"></a>
+<span class="sourceLineNo">227</span>    // and set the zookeeper login context name.<a name="line.227"></a>
+<span class="sourceLineNo">228</span>    JaasConfiguration jaasConf = new JaasConfiguration(loginContextName,<a name="line.228"></a>
+<span class="sourceLineNo">229</span>        principalName, keytabFilename);<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    javax.security.auth.login.Configuration.setConfiguration(jaasConf);<a name="line.230"></a>
+<span class="sourceLineNo">231</span>    System.setProperty(loginContextProperty, loginContextName);<a name="line.231"></a>
+<span class="sourceLineNo">232</span>  }<a name="line.232"></a>
+<span class="sourceLineNo">233</span><a name="line.233"></a>
+<span class="sourceLineNo">234</span>  /**<a name="line.234"></a>
+<span class="sourceLineNo">235</span>   * A JAAS configuration that defines the login modules that we want to use for login.<a name="line.235"></a>
+<span class="sourceLineNo">236</span>   */<a name="line.236"></a>
+<span class="sourceLineNo">237</span>  private static class JaasConfiguration extends javax.security.auth.login.Configuration {<a name="line.237"></a>
+<span class="sourceLineNo">238</span>    private static final String SERVER_KEYTAB_KERBEROS_CONFIG_NAME =<a name="line.238"></a>
+<span class="sourceLineNo">239</span>      "zookeeper-server-keytab-kerberos";<a name="line.239"></a>
+<span class="sourceLineNo">240</span>    private static final String CLIENT_KEYTAB_KERBEROS_CONFIG_NAME =<a name="line.240"></a>
+<span class="sourceLineNo">241</span>      "zookeeper-client-keytab-kerberos";<a name="line.241"></a>
+<span class="sourceLineNo">242</span><a name="line.242"></a>
+<span class="sourceLineNo">243</span>    private static final Map&lt;String, String&gt; BASIC_JAAS_OPTIONS = new HashMap&lt;&gt;();<a name="line.243"></a>
+<span class="sourceLineNo">244</span>    static {<a name="line.244"></a>
+<span class="sourceLineNo">245</span>      String jaasEnvVar = System.getenv("HBASE_JAAS_DEBUG");<a name="line.245"></a>
+<span class="sourceLineNo">246</span>      if (jaasEnvVar != null &amp;&amp; "true".equalsIgnoreCase(jaasEnvVar)) {<a name="line.246"></a>
+<span class="sourceLineNo">247</span>        BASIC_JAAS_OPTIONS.put("debug", "true");<a name="line.247"></a>
+<span class="sourceLineNo">248</span>      }<a name="line.248"></a>
+<span class="sourceLineNo">249</span>    }<a name="line.249"></a>
+<span class="sourceLineNo">250</span><a name="line.250"></a>
+<span class="sourceLineNo">251</span>    private static final Map&lt;String,String&gt; KEYTAB_KERBEROS_OPTIONS = new HashMap&lt;&gt;();<a name="line.251"></a>
+<span class="sourceLineNo">252</span>    static {<a name="line.252"></a>
+<span class="sourceLineNo">253</span>      KEYTAB_KERBEROS_OPTIONS.put("doNotPrompt", "true");<a name="line.253"></a>
+<span class="sourceLineNo">254</span>      KEYTAB_KERBEROS_OPTIONS.put("storeKey", "true");<a name="line.254"></a>
+<span class="sourceLineNo">255</span>      KEYTAB_KERBEROS_OPTIONS.put("refreshKrb5Config", "true");<a name="line.255"></a>
+<span class="sourceLineNo">256</span>      KEYTAB_KERBEROS_OPTIONS.putAll(BASIC_JAAS_OPTIONS);<a name="line.256"></a>
+<span class="sourceLineNo">257</span>    }<a name="line.257"></a>
+<span class="sourceLineNo">258</span><a name="line.258"></a>
+<span class="sourceLineNo">259</span>    private static final AppConfigurationEntry KEYTAB_KERBEROS_LOGIN =<a name="line.259"></a>
+<span class="sourceLineNo">260</span>      new AppConfigurationEntry(KerberosUtil.getKrb5LoginModuleName(),<a name="line.260"></a>
+<span class="sourceLineNo">261</span>                                LoginModuleControlFlag.REQUIRED,<a name="line.261"></a>
+<span class="sourceLineNo">262</span>                                KEYTAB_KERBEROS_OPTIONS);<a name="line.262"></a>
+<span class="sourceLineNo">263</span><a name="line.263"></a>
+<span class="sourceLineNo">264</span>    private static final AppConfigurationEntry[] KEYTAB_KERBEROS_CONF =<a name="line.264"></a>
+<span class="sourceLineNo">265</span>      new AppConfigurationEntry[]{KEYTAB_KERBEROS_LOGIN};<a name="line.265"></a>
 <span class="sourceLineNo">266</span><a name="line.266"></a>
-<span class="sourceLineNo">267</span>    public JaasConfiguration(String loginContextName, String principal, String keytabFile) {<a name="line.267"></a>
-<span class="sourceLineNo">268</span>      this(loginContextName, principal, keytabFile, keytabFile == null || keytabFile.length() == 0);<a name="line.268"></a>
-<span class="sourceLineNo">269</span>    }<a name="line.269"></a>
-<span class="sourceLineNo">270</span><a name="line.270"></a>
-<span class="sourceLineNo">271</span>    private JaasConfiguration(String loginContextName, String principal,<a name="line.271"></a>
-<span class="sourceLineNo">272</span>                             String keytabFile, boolean useTicketCache) {<a name="line.272"></a>
-<span class="sourceLineNo">273</span>      try {<a name="line.273"></a>
-<span class="sourceLineNo">274</span>        this.baseConfig = javax.security.auth.login.Configuration.getConfiguration();<a name="line.274"></a>
-<span class="sourceLineNo">275</span>      } catch (SecurityException e) {<a name="line.275"></a>
-<span class="sourceLineNo">276</span>        this.baseConfig = null;<a name="line.276"></a>
-<span class="sourceLineNo">277</span>      }<a name="line.277"></a>
-<span class="sourceLineNo">278</span>      this.loginContextName = loginContextName;<a name="line.278"></a>
-<span class="sourceLineNo">279</span>      this.useTicketCache = useTicketCache;<a name="line.279"></a>
-<span class="sourceLineNo">280</span>      this.keytabFile = keytabFile;<a name="line.280"></a>
-<span class="sourceLineNo">281</span>      this.principal = principal;<a name="line.281"></a>
-<span class="sourceLineNo">282</span>      LOG.info("JaasConfiguration loginContextName=" + loginContextName +<a name="line.282"></a>
-<span class="sourceLineNo">283</span>               " principal=" + principal + " useTicketCache=" + useTicketCache +<a name="line.283"></a>
-<span class="sourceLineNo">284</span>               " keytabFile=" + keytabFile);<a name="line.284"></a>
-<span class="sourceLineNo">285</span>    }<a name="line.285"></a>
-<span class="sourceLineNo">286</span><a name="line.286"></a>
-<span class="sourceLineNo">287</span>    @Override<a name="line.287"></a>
-<span class="sourceLineNo">288</span>    public AppConfigurationEntry[] getAppConfigurationEntry(String appName) {<a name="line.288"></a>
-<span class="sourceLineNo">289</span>      if (loginContextName.equals(appName)) {<a name="line.289"></a>
-<span class="sourceLineNo">290</span>        if (!useTicketCache) {<a name="line.290"></a>
-<span class="sourceLineNo">291</span>          KEYTAB_KERBEROS_OPTIONS.put("keyTab", keytabFile);<a name="line.291"></a>
-<span class="sourceLineNo">292</span>          KEYTAB_KERBEROS_OPTIONS.put("useKeyTab", "true");<a name="line.292"></a>
-<span class="sourceLineNo">293</span>        }<a name="line.293"></a>
-<span class="sourceLineNo">294</span>        KEYTAB_KERBEROS_OPTIONS.put("principal", principal);<a name="line.294"></a>
-<span class="sourceLineNo">295</span>        KEYTAB_KERBEROS_OPTIONS.put("useTicketCache", useTicketCache ? "true" : "false");<a name="line.295"></a>
-<span class="sourceLineNo">296</span>        return KEYTAB_KERBEROS_CONF;<a name="line.296"></a>
-<span class="sourceLineNo">297</span>      }<a name="line.297"></a>
-<span class="sourceLineNo">298</span>      if (baseConfig != null) return baseConfig.getAppConfigurationEntry(appName);<a name="line.298"></a>
-<span class="sourceLineNo">299</span>      return(null);<a name="line.299"></a>
-<span class="sourceLineNo">300</span>    }<a name="line.300"></a>
-<span class="sourceLineNo">301</span>  }<a name="line.301"></a>
-<span class="sourceLineNo">302</span><a name="line.302"></a>
-<span class="sourceLineNo">303</span>  //<a name="line.303"></a>
-<span class="sourceLineNo">304</span>  // Helper methods<a name="line.304"></a>
-<span class="sourceLineNo">305</span>  //<a name="line.305"></a>
-<span class="sourceLineNo">306</span>  /**<a name="line.306"></a>
-<span class="sourceLineNo">307</span>   * Returns the full path of the immediate parent of the specified node.<a name="line.307"></a>
-<span class="sourceLineNo">308</span>   * @param node path to get parent of<a name="line.308"></a>
-<span class="sourceLineNo">309</span>   * @return parent of path, null if passed the root node or an invalid node<a name="line.309"></a>
-<span class="sourceLineNo">310</span>   */<a name="line.310"></a>
-<span class="sourceLineNo">311</span>  public static String getParent(String node) {<a name="line.311"></a>
-<span class="sourceLineNo">312</span>    int idx = node.lastIndexOf(ZNodePaths.ZNODE_PATH_SEPARATOR);<a name="line.312"></a>
-<span class="sourceLineNo">313</span>    return idx &lt;= 0 ? null : node.substring(0, idx);<a name="line.313"></a>
-<span class="sourceLineNo">314</span>  }<a name="line.314"></a>
-<span class="sourceLineNo">315</span><a name="line.315"></a>
+<span class="sourceLineNo">267</span>    private javax.security.auth.login.Configuration baseConfig;<a name="line.267"></a>
+<span class="sourceLineNo">268</span>    private final String loginContextName;<a name="line.268"></a>
+<span class="sourceLineNo">269</span>    private final boolean useTicketCache;<a name="line.269"></a>
+<span class="sourceLineNo">270</span>    private final String keytabFile;<a name="line.270"></a>
+<span class="sourceLineNo">271</span>    private final String principal;<a name="line.271"></a>
+<span class="sourceLineNo">272</span><a name="line.272"></a>
+<span class="sourceLineNo">273</span>    public JaasConfiguration(String loginContextName, String principal, String keytabFile) {<a name="line.273"></a>
+<span class="sourceLineNo">274</span>      this(loginContextName, principal, keytabFile, keytabFile == null || keytabFile.length() == 0);<a name="line.274"></a>
+<span class="sourceLineNo">275</span>    }<a name="line.275"></a>
+<span class="sourceLineNo">276</span><a name="line.276"></a>
+<span class="sourceLineNo">277</span>    private JaasConfiguration(String loginContextName, String principal,<a name="line.277"></a>
+<span class="sourceLineNo">278</span>                             String keytabFile, boolean useTicketCache) {<a name="line.278"></a>
+<span class="sourceLineNo">279</span>      try {<a name="line.279"></a>
+<span class="sourceLineNo">280</span>        this.baseConfig = javax.security.auth.login.Configuration.getConfiguration();<a name="line.280"></a>
+<span class="sourceLineNo">281</span>      } catch (SecurityException e) {<a name="line.281"></a>
+<span class="sourceLineNo">282</span>        this.baseConfig = null;<a name="line.282"></a>
+<span class="sourceLineNo">283</span>      }<a name="line.283"></a>
+<span class="sourceLineNo">284</span>      this.loginContextName = loginContextName;<a name="line.284"></a>
+<span class="sourceLineNo">285</span>      this.useTicketCache = useTicketCache;<a name="line.285"></a>
+<span class="sourceLineNo">286</span>      this.keytabFile = keytabFile;<a name="line.286"></a>
+<span class="sourceLineNo">287</span>      this.principal = principal;<a name="line.287"></a>
+<span class="sourceLineNo">288</span>      LOG.info("JaasConfiguration loginContextName=" + loginContextName +<a name="line.288"></a>
+<span class="sourceLineNo">289</span>               " principal=" + principal + " useTicketCache=" + useTicketCache +<a name="line.289"></a>
+<span class="sourceLineNo">290</span>               " keytabFile=" + keytabFile);<a name="line.290"></a>
+<span class="sourceLineNo">291</span>    }<a name="line.291"></a>
+<span class="sourceLineNo">292</span><a name="line.292"></a>
+<span class="sourceLineNo">293</span>    @Override<a name="line.293"></a>
+<span class="sourceLineNo">294</span>    public AppConfigurationEntry[] getAppConfigurationEntry(String appName) {<a name="line.294"></a>
+<span class="sourceLineNo">295</span>      if (loginContextName.equals(appName)) {<a name="line.295"></a>
+<span class="sourceLineNo">296</span>        if (!useTicketCache) {<a name="line.296"></a>
+<span class="sourceLineNo">297</span>          KEYTAB_KERBEROS_OPTIONS.put("keyTab", keytabFile);<a name="line.297"></a>
+<span class="sourceLineNo">298</span>          KEYTAB_KERBEROS_OPTIONS.put("useKeyTab", "true");<a name="line.298"></a>
+<span class="sourceLineNo">299</span>        }<a name="line.299"></a>
+<span class="sourceLineNo">300</span>        KEYTAB_KERBEROS_OPTIONS.put("principal", principal);<a name="line.300"></a>
+<span class="sourceLineNo">301</span>        KEYTAB_KERBEROS_OPTIONS.put("useTicketCache", useTicketCache ? "true" : "false");<a name="line.301"></a>
+<span class="sourceLineNo">302</span>        return KEYTAB_KERBEROS_CONF;<a name="line.302"></a>
+<span class="sourceLineNo">303</span>      }<a name="line.303"></a>
+<span class="sourceLineNo">304</span><a name="line.304"></a>
+<span class="sourceLineNo">305</span>      if (baseConfig != null) {<a name="line.305"></a>
+<span class="sourceLineNo">306</span>        return baseConfig.getAppConfigurationEntry(appName);<a name="line.306"></a>
+<span class="sourceLineNo">307</span>      }<a name="line.307"></a>
+<span class="sourceLineNo">308</span><a name="line.308"></a>
+<span class="sourceLineNo">309</span>      return(null);<a name="line.309"></a>
+<span class="sourceLineNo">310</span>    }<a name="line.310"></a>
+<span class="sourceLineNo">311</span>  }<a name="line.311"></a>
+<span class="sourceLineNo">312</span><a name="line.312"></a>
+<span class="sourceLineNo">313</span>  //<a name="line.313"></a>
+<span class="sourceLineNo">314</span>  // Helper methods<a name="line.314"></a>
+<span class="sourceLineNo">315</span>  //<a name="line.315"></a>
 <span class="sourceLineNo">316</span>  /**<a name="line.316"></a>
-<span class="sourceLineNo">317</span>   * Get the name of the current node from the specified fully-qualified path.<a name="line.317"></a>
-<span class="sourceLineNo">318</span>   * @param path fully-qualified path<a name="line.318"></a>
-<span class="sourceLineNo">319</span>   * @return name of the current node<a name="line.319"></a>
+<span class="sourceLineNo">317</span>   * Returns the full path of the immediate parent of the specified node.<a name="line.317"></a>
+<span class="sourceLineNo">318</span>   * @param node path to get parent of<a name="line.318"></a>
+<span class="sourceLineNo">319</span>   * @return parent of path, null if passed the root node or an invalid node<a name="line.319"></a>
 <span class="sourceLineNo">320</span>   */<a name="line.320"></a>
-<span class="sourceLineNo">321</span>  public static String getNodeName(String path) {<a name="line.321"></a>
-<span class="sourceLineNo">322</span>    return path.substring(path.lastIndexOf("/")+1);<a name="line.322"></a>
-<span class="sourceLineNo">323</span>  }<a name="line.323"></a>
-<span class="sourceLineNo">324</span><a name="line.324"></a>
-<span class="sourceLineNo">325</span>  //<a name="line.325"></a>
-<span class="sourceLineNo">326</span>  // Existence checks and watches<a name="line.326"></a>
-<span class="sourceLineNo">327</span>  //<a name="line.327"></a>
-<span class="sourceLineNo">328</span><a name="line.328"></a>
-<span class="sourceLineNo">329</span>  /**<a name="line.329"></a>
-<span class="sourceLineNo">330</span>   * Watch the specified znode for delete/create/change events.  The watcher is<a name="line.330"></a>
-<span class="sourceLineNo">331</span>   * set whether or not the node exists.  If the node already exists, the method<a name="line.331"></a>
-<span class="sourceLineNo">332</span>   * returns true.  If the node does not exist, the method returns false.<a name="line.332"></a>
-<span class="sourceLineNo">333</span>   *<a name="line.333"></a>
-<span class="sourceLineNo">334</span>   * @param zkw zk reference<a name="line.334"></a>
-<span class="sourceLineNo">335</span>   * @param znode path of node to watch<a name="line.335"></a>
-<span class="sourceLineNo">336</span>   * @return true if znode exists, false if does not exist or error<a name="line.336"></a>
-<span class="sourceLineNo">337</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.337"></a>
-<span class="sourceLineNo">338</span>   */<a name="line.338"></a>
-<span class="sourceLineNo">339</span>  public static boolean watchAndCheckExists(ZKWatcher zkw, String znode)<a name="line.339"></a>
-<span class="sourceLineNo">340</span>  throws KeeperException {<a name="line.340"></a>
-<span class="sourceLineNo">341</span>    try {<a name="line.341"></a>
-<span class="sourceLineNo">342</span>      Stat s = zkw.getRecoverableZooKeeper().exists(znode, zkw);<a name="line.342"></a>
-<span class="sourceLineNo">343</span>      boolean exists = s != null ? true : false;<a name="line.343"></a>
-<span class="sourceLineNo">344</span>      if (exists) {<a name="line.344"></a>
-<span class="sourceLineNo">345</span>        LOG.debug(zkw.prefix("Set watcher on existing znode=" + znode));<a name="line.345"></a>
-<span class="sourceLineNo">346</span>      } else {<a name="line.346"></a>
-<span class="sourceLineNo">347</span>        LOG.debug(zkw.prefix("Set watcher on znode that does not yet exist, " + znode));<a name="line.347"></a>
-<span class="sourceLineNo">348</span>      }<a name="line.348"></a>
-<span class="sourceLineNo">349</span>      return exists;<a name="line.349"></a>
-<span class="sourceLineNo">350</span>    } catch (KeeperException e) {<a name="line.350"></a>
-<span class="sourceLineNo">351</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode " + znode), e);<a name="line.351"></a>
-<span class="sourceLineNo">352</span>      zkw.keeperException(e);<a name="line.352"></a>
-<span class="sourceLineNo">353</span>      return false;<a name="line.353"></a>
-<span class="sourceLineNo">354</span>    } catch (InterruptedException e) {<a name="line.354"></a>
-<span class="sourceLineNo">355</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode " + znode), e);<a name="line.355"></a>
-<span class="sourceLineNo">356</span>      zkw.interruptedException(e);<a name="line.356"></a>
-<span class="sourceLineNo">357</span>      return false;<a name="line.357"></a>
-<span class="sourceLineNo">358</span>    }<a name="line.358"></a>
-<span class="sourceLineNo">359</span>  }<a name="line.359"></a>
-<span class="sourceLineNo">360</span><a name="line.360"></a>
-<span class="sourceLineNo">361</span>  /**<a name="line.361"></a>
-<span class="sourceLineNo">362</span>   * Watch the specified znode, but only if exists. Useful when watching<a name="line.362"></a>
-<span class="sourceLineNo">363</span>   * for deletions. Uses .getData() (and handles NoNodeException) instead<a name="line.363"></a>
-<span class="sourceLineNo">364</span>   * of .exists() to accomplish this, as .getData() will only set a watch if<a name="line.364"></a>
-<span class="sourceLineNo">365</span>   * the znode exists.<a name="line.365"></a>
-<span class="sourceLineNo">366</span>   * @param zkw zk reference<a name="line.366"></a>
-<span class="sourceLineNo">367</span>   * @param znode path of node to watch<a name="line.367"></a>
-<span class="sourceLineNo">368</span>   * @return true if the watch is set, false if node does not exists<a name="line.368"></a>
-<span class="sourceLineNo">369</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.369"></a>
-<span class="sourceLineNo">370</span>   */<a name="line.370"></a>
-<span class="sourceLineNo">371</span>  public static boolean setWatchIfNodeExists(ZKWatcher zkw, String znode)<a name="line.371"></a>
-<span class="sourceLineNo">372</span>      throws KeeperException {<a name="line.372"></a>
-<span class="sourceLineNo">373</span>    try {<a name="line.373"></a>
-<span class="sourceLineNo">374</span>      zkw.getRecoverableZooKeeper().getData(znode, true, null);<a name="line.374"></a>
-<span class="sourceLineNo">375</span>      return true;<a name="line.375"></a>
-<span class="sourceLineNo">376</span>    } catch (NoNodeException e) {<a name="line.376"></a>
-<span class="sourceLineNo">377</span>      return false;<a name="line.377"></a>
-<span class="sourceLineNo">378</span>    } catch (InterruptedException e) {<a name="line.378"></a>
-<span class="sourceLineNo">379</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode " + znode), e);<a name="line.379"></a>
-<span class="sourceLineNo">380</span>      zkw.interruptedException(e);<a name="line.380"></a>
-<span class="sourceLineNo">381</span>      return false;<a name="line.381"></a>
-<span class="sourceLineNo">382</span>    }<a name="line.382"></a>
-<span class="sourceLineNo">383</span>  }<a name="line.383"></a>
-<span class="sourceLineNo">384</span><a name="line.384"></a>
-<span class="sourceLineNo">385</span>  /**<a name="line.385"></a>
-<span class="sourceLineNo">386</span>   * Check if the specified node exists.  Sets no watches.<a name="line.386"></a>
-<span class="sourceLineNo">387</span>   *<a name="line.387"></a>
-<span class="sourceLineNo">388</span>   * @param zkw zk reference<a name="line.388"></a>
-<span class="sourceLineNo">389</span>   * @param znode path of node to watch<a name="line.389"></a>
-<span class="sourceLineNo">390</span>   * @return version of the node if it exists, -1 if does not exist<a name="line.390"></a>
-<span class="sourceLineNo">391</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.391"></a>
-<span class="sourceLineNo">392</span>   */<a name="line.392"></a>
-<span class="sourceLineNo">393</span>  public static int checkExists(ZKWatcher zkw, String znode)<a name="line.393"></a>
-<span class="sourceLineNo">394</span>  throws KeeperException {<a name="line.394"></a>
-<span class="sourceLineNo">395</span>    try {<a name="line.395"></a>
-<span class="sourceLineNo">396</span>      Stat s = zkw.getRecoverableZooKeeper().exists(znode, null);<a name="line.396"></a>
-<span class="sourceLineNo">397</span>      return s != null ? s.getVersion() : -1;<a name="line.397"></a>
-<span class="sourceLineNo">398</span>    } catch (KeeperException e) {<a name="line.398"></a>
-<span class="sourceLineNo">399</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode (" + znode + ")"), e);<a name="line.399"></a>
-<span class="sourceLineNo">400</span>      zkw.keeperException(e);<a name="line.400"></a>
-<span class="sourceLineNo">401</span>      return -1;<a name="line.401"></a>
-<span class="sourceLineNo">402</span>    } catch (InterruptedException e) {<a name="line.402"></a>
-<span class="sourceLineNo">403</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode (" + znode + ")"), e);<a name="line.403"></a>
-<span class="sourceLineNo">404</span>      zkw.interruptedException(e);<a name="line.404"></a>
-<span class="sourceLineNo">405</span>      return -1;<a name="line.405"></a>
-<span class="sourceLineNo">406</span>    }<a name="line.406"></a>
-<span class="sourceLineNo">407</span>  }<a name="line.407"></a>
-<span class="sourceLineNo">408</span><a name="line.408"></a>
-<span class="sourceLineNo">409</span>  //<a name="line.409"></a>
-<span class="sourceLineNo">410</span>  // Znode listings<a name="line.410"></a>
-<span class="sourceLineNo">411</span>  //<a name="line.411"></a>
-<span class="sourceLineNo">412</span><a name="line.412"></a>
-<span class="sourceLineNo">413</span>  /**<a name="line.413"></a>
-<span class="sourceLineNo">414</span>   * Lists the children znodes of the specified znode.  Also sets a watch on<a name="line.414"></a>
-<span class="sourceLineNo">415</span>   * the specified znode which will capture a NodeDeleted event on the specified<a name="line.415"></a>
-<span class="sourceLineNo">416</span>   * znode as well as NodeChildrenChanged if any children of the specified znode<a name="line.416"></a>
-<span class="sourceLineNo">417</span>   * are created or deleted.<a name="line.417"></a>
-<span class="sourceLineNo">418</span>   *<a name="line.418"></a>
-<span class="sourceLineNo">419</span>   * Returns null if the specified node does not exist.  Otherwise returns a<a name="line.419"></a>
-<span class="sourceLineNo">420</span>   * list of children of the specified node.  If the node exists but it has no<a name="line.420"></a>
-<span class="sourceLineNo">421</span>   * children, an empty list will be returned.<a name="line.421"></a>
-<span class="sourceLineNo">422</span>   *<a name="line.422"></a>
-<span class="sourceLineNo">423</span>   * @param zkw zk reference<a name="line.423"></a>
-<span class="sourceLineNo">424</span>   * @param znode path of node to list and watch children of<a name="line.424"></a>
-<span class="sourceLineNo">425</span>   * @return list of children of the specified node, an empty list if the node<a name="line.425"></a>
-<span class="sourceLineNo">426</span>   *          exists but has no children, and null if the node does not exist<a name="line.426"></a>
-<span class="sourceLineNo">427</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.427"></a>
-<span class="sourceLineNo">428</span>   */<a name="line.428"></a>
-<span class="sourceLineNo">429</span>  public static List&lt;String&gt; listChildrenAndWatchForNewChildren(<a name="line.429"></a>
-<span class="sourceLineNo">430</span>          ZKWatcher zkw, String znode)<a name="line.430"></a>
-<span class="sourceLineNo">431</span>  throws KeeperException {<a name="line.431"></a>
-<span class="sourceLineNo">432</span>    try {<a name="line.432"></a>
-<span class="sourceLineNo">433</span>      List&lt;String&gt; children = zkw.getRecoverableZooKeeper().getChildren(znode, zkw);<a name="line.433"></a>
-<span class="sourceLineNo">434</span>      return children;<a name="line.434"></a>
-<span class="sourceLineNo">435</span>    } catch(KeeperException.NoNodeException ke) {<a name="line.435"></a>
-<span class="sourceLineNo">436</span>      LOG.debug(zkw.prefix("Unable to list children of znode " + znode + " " +<a name="line.436"></a>
-<span class="sourceLineNo">437</span>          "because node does not exist (not an error)"));<a name="line.437"></a>
-<span class="sourceLineNo">438</span>      return null;<a name="line.438"></a>
-<span class="sourceLineNo">439</span>    } catch (KeeperException e) {<a name="line.439"></a>
-<span class="sourceLineNo">440</span>      LOG.warn(zkw.prefix("Unable to list children of znode " + znode + " "), e);<a name="line.440"></a>
-<span class="sourceLineNo">441</span>      zkw.keeperException(e);<a name="line.441"></a>
-<span class="sourceLineNo">442</span>      return null;<a name="line.442"></a>
-<span class="sourceLineNo">443</span>    } catch (InterruptedException e) {<a name="line.443"></a>
-<span class="sourceLineNo">444</span>      LOG.warn(zkw.prefix("Unable to list children of znode " + znode + " "), e);<a name="line.444"></a>
-<span class="sourceLineNo">445</span>      zkw.interruptedException(e);<a name="line.445"></a>
-<span class="sourceLineNo">446</span>      return null;<a name="line.446"></a>
-<span class="sourceLineNo">447</span>    }<a name="line.447"></a>
-<span class="sourceLineNo">448</span>  }<a name="line.448"></a>
-<span class="sourceLineNo">449</span><a name="line.449"></a>
-<span class="sourceLineNo">450</span>  /**<a name="line.450"></a>
-<span class="sourceLineNo">451</span>   * List all the children of the specified znode, setting a watch for children<a name="line.451"></a>
-<span class="sourceLineNo">452</span>   * changes and also setting a watch on every individual child in order to get<a name="line.452"></a>
-<span class="sourceLineNo">453</span>   * the NodeCreated and NodeDeleted events.<a name="line.453"></a>
-<span class="sourceLineNo">454</span>   * @param zkw zookeeper reference<a name="line.454"></a>
-<span class="sourceLineNo">455</span>   * @param znode node to get children of and watch<a name="line.455"></a>
-<span class="sourceLineNo">456</span>   * @return list of znode names, null if the node doesn't exist<a name="line.456"></a>
-<span class="sourceLineNo">457</span>   * @throws KeeperException<a name="line.457"></a>
-<span class="sourceLineNo">458</span>   */<a name="line.458"></a>
-<span class="sourceLineNo">459</span>  public static List&lt;String&gt; listChildrenAndWatchThem(ZKWatcher zkw,<a name="line.459"></a>
-<span class="sourceLineNo">460</span>      String znode) throws KeeperException {<a name="line.460"></a>
-<span class="sourceLineNo">461</span>    List&lt;String&gt; children = listChildrenAndWatchForNewChildren(zkw, znode);<a name="line.461"></a>
-<span class="sourceLineNo">462</span>    if (children == null) {<a name="line.462"></a>
-<span class="sourceLineNo">463</span>      return null;<a name="line.463"></a>
-<span class="sourceLineNo">464</span>    }<a name="line.464"></a>
-<span class="sourceLineNo">465</span>    for (String child : children) {<a name="line.465"></a>
-<span class="sourceLineNo">466</span>      watchAndCheckExists(zkw, ZNodePaths.joinZNode(znode, child));<a name="line.466"></a>
-<span class="sourceLineNo">467</span>    }<a name="line.467"></a>
-<span class="sourceLineNo">468</span>    return children;<a name="line.468"></a>
-<span class="sourceLineNo">469</span>  }<a name="line.469"></a>
-<span class="sourceLineNo">470</span><a name="line.470"></a>
-<span class="sourceLineNo">471</span>  /**<a name="line.471"></a>
-<span class="sourceLineNo">472</span>   * Lists the children of the specified znode without setting any watches.<a name="line.472"></a>
-<span class="sourceLineNo">473</span>   *<a name="line.473"></a>
-<span class="sourceLineNo">474</span>   * Sets no watches at all, this method is best effort.<a name="line.474"></a>
-<span class="sourceLineNo">475</span>   *<a name="line.475"></a>
-<span class="sourceLineNo">476</span>   * Returns an empty list if the node has no children.  Returns null if the<a name="line.476"></a>
-<span class="sourceLineNo">477</span>   * parent node itself does not exist.<a name="line.477"></a>
-<span class="sourceLineNo">478</span>   *<a name="line.478"></a>
-<span class="sourceLineNo">479</span>   * @param zkw zookeeper reference<a name="line.479"></a>
-<span class="sourceLineNo">480</span>   * @param znode node to get children<a name="line.480"></a>
-<span class="sourceLineNo">481</span>   * @return list of data of children of specified znode, empty if no children,<a name="line.481"></a>
-<span class="sourceLineNo">482</span>   *         null if parent does not exist<a name="line.482"></a>
-<span class="sourceLineNo">483</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.483"></a>
-<span class="sourceLineNo">484</span>   */<a name="line.484"></a>
-<span class="sourceLineNo">485</span>  public static List&lt;String&gt; listChildrenNoWatch(ZKWatcher zkw, String znode)<a name="line.485"></a>
-<span class="sourceLineNo">486</span>  throws KeeperException {<a name="line.486"></a>
-<span class="sourceLineNo">487</span>    List&lt;String&gt; children = null;<a name="line.487"></a>
-<span class="sourceLineNo">488</span>    try {<a name="line.488"></a>
-<span class="sourceLineNo">489</span>      // List the children without watching<a name="line.489"></a>
-<span class="sourceLineNo">490</span>      children = zkw.getRecoverableZooKeeper().getChildren(znode, null);<a name="line.490"></a>
-<span class="sourceLineNo">491</span>    } catch(KeeperException.NoNodeException nne) {<a name="line.491"></a>
-<span class="sourceLineNo">492</span>      return null;<a name="line.492"></a>
-<span class="sourceLineNo">493</span>    } catch(InterruptedException ie) {<a name="line.493"></a>
-<span class="sourceLineNo">494</span>      zkw.interruptedException(ie);<a name="line.494"></a>
-<span class="sourceLineNo">495</span>    }<a name="line.495"></a>
-<span class="sourceLineNo">496</span>    return children;<a name="line.496"></a>
-<span class="sourceLineNo">497</span>  }<a name="line.497"></a>
-<span class="sourceLineNo">498</span><a name="line.498"></a>
-<span class="sourceLineNo">499</span>  /**<a name="line.499"></a>
-<span class="sourceLineNo">500</span>   * Simple class to hold a node path and node data.<a name="line.500"></a>
-<span class="sourceLineNo">501</span>   * @deprecated Unused<a name="line.501"></a>
-<span class="sourceLineNo">502</span>   */<a name="line.502"></a>
-<span class="sourceLineNo">503</span>  @Deprecated<a name="line.503"></a>
-<span class="sourceLineNo">504</span>  public static class NodeAndData {<a name="line.504"></a>
-<span class="sourceLineNo">505</span>    private String node;<a name="line.505"></a>
-<span class="sourceLineNo">506</span>    private byte [] data;<a name="line.506"></a>
-<span class="sourceLineNo">507</span>    public NodeAndData(String node, byte [] data) {<a name="line.507"></a>
-<span class="sourceLineNo">508</span>      this.node = node;<a name="line.508"></a>
-<span class="sourceLineNo">509</span>      this.data = data;<a name="line.509"></a>
-<span class="sourceLineNo">510</span>    }<a name="line.510"></a>
-<span class="sourceLineNo">511</span>    public String getNode() {<a name="line.511"></a>
-<span class="sourceLineNo">512</span>      return node;<a name="line.512"></a>
-<span class="sourceLineNo">513</span>    }<a name="line.513"></a>
-<span class="sourceLineNo">514</span>    public byte [] getData() {<a name="line.514"></a>
-<span class="sourceLineNo">515</span>      return data;<a name="line.515"></a>
-<span class="sourceLineNo">516</span>    }<a name="line.516"></a>
-<span class="sourceLineNo">517</span>    @Override<a name="line.517"></a>
-<span class="sourceLineNo">518</span>    public String toString() {<a name="line.518"></a>
-<span class="sourceLineNo">519</span>      return node;<a name="line.519"></a>
+<span class="sourceLineNo">321</span>  public static String getParent(String node) {<a name="line.321"></a>
+<span class="sourceLineNo">322</span>    int idx = node.lastIndexOf(ZNodePaths.ZNODE_PATH_SEPARATOR);<a name="line.322"></a>
+<span class="sourceLineNo">323</span>    return idx &lt;= 0 ? null : node.substring(0, idx);<a name="line.323"></a>
+<span class="sourceLineNo">324</span>  }<a name="line.324"></a>
+<span class="sourceLineNo">325</span><a name="line.325"></a>
+<span class="sourceLineNo">326</span>  /**<a name="line.326"></a>
+<span class="sourceLineNo">327</span>   * Get the name of the current node from the specified fully-qualified path.<a name="line.327"></a>
+<span class="sourceLineNo">328</span>   * @param path fully-qualified path<a name="line.328"></a>
+<span class="sourceLineNo">329</span>   * @return name of the current node<a name="line.329"></a>
+<span class="sourceLineNo">330</span>   */<a name="line.330"></a>
+<span class="sourceLineNo">331</span>  public static String getNodeName(String path) {<a name="line.331"></a>
+<span class="sourceLineNo">332</span>    return path.substring(path.lastIndexOf("/")+1);<a name="line.332"></a>
+<span class="sourceLineNo">333</span>  }<a name="line.333"></a>
+<span class="sourceLineNo">334</span><a name="line.334"></a>
+<span class="sourceLineNo">335</span>  //<a name="line.335"></a>
+<span class="sourceLineNo">336</span>  // Existence checks and watches<a name="line.336"></a>
+<span class="sourceLineNo">337</span>  //<a name="line.337"></a>
+<span class="sourceLineNo">338</span><a name="line.338"></a>
+<span class="sourceLineNo">339</span>  /**<a name="line.339"></a>
+<span class="sourceLineNo">340</span>   * Watch the specified znode for delete/create/change events.  The watcher is<a name="line.340"></a>
+<span class="sourceLineNo">341</span>   * set whether or not the node exists.  If the node already exists, the method<a name="line.341"></a>
+<span class="sourceLineNo">342</span>   * returns true.  If the node does not exist, the method returns false.<a name="line.342"></a>
+<span class="sourceLineNo">343</span>   *<a name="line.343"></a>
+<span class="sourceLineNo">344</span>   * @param zkw zk reference<a name="line.344"></a>
+<span class="sourceLineNo">345</span>   * @param znode path of node to watch<a name="line.345"></a>
+<span class="sourceLineNo">346</span>   * @return true if znode exists, false if does not exist or error<a name="line.346"></a>
+<span class="sourceLineNo">347</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.347"></a>
+<span class="sourceLineNo">348</span>   */<a name="line.348"></a>
+<span class="sourceLineNo">349</span>  public static boolean watchAndCheckExists(ZKWatcher zkw, String znode)<a name="line.349"></a>
+<span class="sourceLineNo">350</span>  throws KeeperException {<a name="line.350"></a>
+<span class="sourceLineNo">351</span>    try {<a name="line.351"></a>
+<span class="sourceLineNo">352</span>      Stat s = zkw.getRecoverableZooKeeper().exists(znode, zkw);<a name="line.352"></a>
+<span class="sourceLineNo">353</span>      boolean exists = s != null ? true : false;<a name="line.353"></a>
+<span class="sourceLineNo">354</span>      if (exists) {<a name="line.354"></a>
+<span class="sourceLineNo">355</span>        LOG.debug(zkw.prefix("Set watcher on existing znode=" + znode));<a name="line.355"></a>
+<span class="sourceLineNo">356</span>      } else {<a name="line.356"></a>
+<span class="sourceLineNo">357</span>        LOG.debug(zkw.prefix("Set watcher on znode that does not yet exist, " + znode));<a name="line.357"></a>
+<span class="sourceLineNo">358</span>      }<a name="line.358"></a>
+<span class="sourceLineNo">359</span>      return exists;<a name="line.359"></a>
+<span class="sourceLineNo">360</span>    } catch (KeeperException e) {<a name="line.360"></a>
+<span class="sourceLineNo">361</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode " + znode), e);<a name="line.361"></a>
+<span class="sourceLineNo">362</span>      zkw.keeperException(e);<a name="line.362"></a>
+<span class="sourceLineNo">363</span>      return false;<a name="line.363"></a>
+<span class="sourceLineNo">364</span>    } catch (InterruptedException e) {<a name="line.364"></a>
+<span class="sourceLineNo">365</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode " + znode), e);<a name="line.365"></a>
+<span class="sourceLineNo">366</span>      zkw.interruptedException(e);<a name="line.366"></a>
+<span class="sourceLineNo">367</span>      return false;<a name="line.367"></a>
+<span class="sourceLineNo">368</span>    }<a name="line.368"></a>
+<span class="sourceLineNo">369</span>  }<a name="line.369"></a>
+<span class="sourceLineNo">370</span><a name="line.370"></a>
+<span class="sourceLineNo">371</span>  /**<a name="line.371"></a>
+<span class="sourceLineNo">372</span>   * Watch the specified znode, but only if exists. Useful when watching<a name="line.372"></a>
+<span class="sourceLineNo">373</span>   * for deletions. Uses .getData() (and handles NoNodeException) instead<a name="line.373"></a>
+<span class="sourceLineNo">374</span>   * of .exists() to accomplish this, as .getData() will only set a watch if<a name="line.374"></a>
+<span class="sourceLineNo">375</span>   * the znode exists.<a name="line.375"></a>
+<span class="sourceLineNo">376</span>   * @param zkw zk reference<a name="line.376"></a>
+<span class="sourceLineNo">377</span>   * @param znode path of node to watch<a name="line.377"></a>
+<span class="sourceLineNo">378</span>   * @return true if the watch is set, false if node does not exists<a name="line.378"></a>
+<span class="sourceLineNo">379</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.379"></a>
+<span class="sourceLineNo">380</span>   */<a name="line.380"></a>
+<span class="sourceLineNo">381</span>  public static boolean setWatchIfNodeExists(ZKWatcher zkw, String znode)<a name="line.381"></a>
+<span class="sourceLineNo">382</span>      throws KeeperException {<a name="line.382"></a>
+<span class="sourceLineNo">383</span>    try {<a name="line.383"></a>
+<span class="sourceLineNo">384</span>      zkw.getRecoverableZooKeeper().getData(znode, true, null);<a name="line.384"></a>
+<span class="sourceLineNo">385</span>      return true;<a name="line.385"></a>
+<span class="sourceLineNo">386</span>    } catch (NoNodeException e) {<a name="line.386"></a>
+<span class="sourceLineNo">387</span>      return false;<a name="line.387"></a>
+<span class="sourceLineNo">388</span>    } catch (InterruptedException e) {<a name="line.388"></a>
+<span class="sourceLineNo">389</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode " + znode), e);<a name="line.389"></a>
+<span class="sourceLineNo">390</span>      zkw.interruptedException(e);<a name="line.390"></a>
+<span class="sourceLineNo">391</span>      return false;<a name="line.391"></a>
+<span class="sourceLineNo">392</span>    }<a name="line.392"></a>
+<span class="sourceLineNo">393</span>  }<a name="line.393"></a>
+<span class="sourceLineNo">394</span><a name="line.394"></a>
+<span class="sourceLineNo">395</span>  /**<a name="line.395"></a>
+<span class="sourceLineNo">396</span>   * Check if the specified node exists.  Sets no watches.<a name="line.396"></a>
+<span class="sourceLineNo">397</span>   *<a name="line.397"></a>
+<span class="sourceLineNo">398</span>   * @param zkw zk reference<a name="line.398"></a>
+<span class="sourceLineNo">399</span>   * @param znode path of node to watch<a name="line.399"></a>
+<span class="sourceLineNo">400</span>   * @return version of the node if it exists, -1 if does not exist<a name="line.400"></a>
+<span class="sourceLineNo">401</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.401"></a>
+<span class="sourceLineNo">402</span>   */<a name="line.402"></a>
+<span class="sourceLineNo">403</span>  public static int checkExists(ZKWatcher zkw, String znode)<a name="line.403"></a>
+<span class="sourceLineNo">404</span>  throws KeeperException {<a name="line.404"></a>
+<span class="sourceLineNo">405</span>    try {<a name="line.405"></a>
+<span class="sourceLineNo">406</span>      Stat s = zkw.getRecoverableZooKeeper().exists(znode, null);<a name="line.406"></a>
+<span class="sourceLineNo">407</span>      return s != null ? s.getVersion() : -1;<a name="line.407"></a>
+<span class="sourceLineNo">408</span>    } catch (KeeperException e) {<a name="line.408"></a>
+<span class="sourceLineNo">409</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode (" + znode + ")"), e);<a name="line.409"></a>
+<span class="sourceLineNo">410</span>      zkw.keeperException(e);<a name="line.410"></a>
+<span class="sourceLineNo">411</span>      return -1;<a name="line.411"></a>
+<span class="sourceLineNo">412</span>    } catch (InterruptedException e) {<a name="line.412"></a>
+<span class="sourceLineNo">413</span>      LOG.warn(zkw.prefix("Unable to set watcher on znode (" + znode + ")"), e);<a name="line.413"></a>
+<span class="sourceLineNo">414</span>      zkw.interruptedException(e);<a name="line.414"></a>
+<span class="sourceLineNo">415</span>      return -1;<a name="line.415"></a>
+<span class="sourceLineNo">416</span>    }<a name="line.416"></a>
+<span class="sourceLineNo">417</span>  }<a name="line.417"></a>
+<span class="sourceLineNo">418</span><a name="line.418"></a>
+<span class="sourceLineNo">419</span>  //<a name="line.419"></a>
+<span class="sourceLineNo">420</span>  // Znode listings<a name="line.420"></a>
+<span class="sourceLineNo">421</span>  //<a name="line.421"></a>
+<span class="sourceLineNo">422</span><a name="line.422"></a>
+<span class="sourceLineNo">423</span>  /**<a name="line.423"></a>
+<span class="sourceLineNo">424</span>   * Lists the children znodes of the specified znode.  Also sets a watch on<a name="line.424"></a>
+<span class="sourceLineNo">425</span>   * the specified znode which will capture a NodeDeleted event on the specified<a name="line.425"></a>
+<span class="sourceLineNo">426</span>   * znode as well as NodeChildrenChanged if any children of the specified znode<a name="line.426"></a>
+<span class="sourceLineNo">427</span>   * are created or deleted.<a name="line.427"></a>
+<span class="sourceLineNo">428</span>   *<a name="line.428"></a>
+<span class="sourceLineNo">429</span>   * Returns null if the specified node does not exist.  Otherwise returns a<a name="line.429"></a>
+<span class="sourceLineNo">430</span>   * list of children of the specified node.  If the node exists but it has no<a name="line.430"></a>
+<span class="sourceLineNo">431</span>   * children, an empty list will be returned.<a name="line.431"></a>
+<span class="sourceLineNo">432</span>   *<a name="line.432"></a>
+<span class="sourceLineNo">433</span>   * @param zkw zk reference<a name="line.433"></a>
+<span class="sourceLineNo">434</span>   * @param znode path of node to list and watch children of<a name="line.434"></a>
+<span class="sourceLineNo">435</span>   * @return list of children of the specified node, an empty list if the node<a name="line.435"></a>
+<span class="sourceLineNo">436</span>   *          exists but has no children, and null if the node does not exist<a name="line.436"></a>
+<span class="sourceLineNo">437</span>   * @throws KeeperException if unexpected zookeeper exception<a name="line.437"></a>
+<span class="sourceLineNo">438</span>   */<a name="line.438"></a>
+<span class="sourceLineNo">439</span>  public static List&lt;String&gt; listChildrenAndWatchForNewChildren(<a name="line.439"></a>
+<span class="sourceLineNo">440</span>          ZKWatcher zkw, String znode)<a name="line.440"></a>
+<span class="sourceLineNo">441</span>  throws KeeperException {<a name="line.441"></a>
+<span class="sourceLineNo">442</span>    try {<a name="line.442"></a>
+<span class="sourceLineNo">443</span>      List&lt;String&gt; children = zkw.getRecoverableZooKeeper().getChildren(znode, zkw);<a name="line.443"></a>
+<span class="sourceLineNo">444</span>      return children;<a name="line.444"></a>
+<span class="sourceLineNo">445</span>    } catch(KeeperException.NoNodeException ke) {<a name="line.445"></a>
+<span class="sourceLineNo">446</span>      LOG.debug(zkw.prefix("Unable to list children of znode " + znode + " " +<a name="line.446"></a>
+<span class="sourceLineNo">447</span>          "because node does not exist (not an error)"));<a name="line.447"></a>
+<span class="sourceLineNo">448</span>      return null;<a name="line.448"></a>
+<span class="sourceLineNo">449</span>    } catch (KeeperException e) {<a name="line.449"></a>
+<span class="sourceLineNo">450</span>      LOG.warn(zkw.prefix("Unable to list children of znode " + znode + " "), e);<a name="line.450"></a>
+<span class="sourceLineNo">451</span>      zkw.keeperException(e);<a name="line.451"></a>
+<span class="sourceLineNo">452</span>      return null;<a name="line.452"></a>
+<span class="sourceLineNo">453</span>    } catch (InterruptedException e) {<a name="line.453"></a>
+<span class="sourceLineNo">454</span>      LOG.warn(zkw.prefix("Unable to list children of znode " + znode + " "

<TRUNCATED>

Mime
View raw message