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From mi...@apache.org
Subject [16/51] [partial] hbase-site git commit: Published site at 2cc48e039d1f800832ac8880bbc820982e0ac8a5.
Date Mon, 01 Feb 2016 16:57:12 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/a7e5a8ce/devapidocs/src-html/org/apache/hadoop/hbase/TagUtil.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/TagUtil.html b/devapidocs/src-html/org/apache/hadoop/hbase/TagUtil.html
index d999d2f..59e8cf4 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/TagUtil.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/TagUtil.html
@@ -30,201 +30,268 @@
 <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
 <span class="sourceLineNo">023</span>import java.nio.ByteBuffer;<a name="line.23"></a>
 <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a>
-<span class="sourceLineNo">026</span><a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.io.util.StreamUtils;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.31"></a>
-<span class="sourceLineNo">032</span><a name="line.32"></a>
-<span class="sourceLineNo">033</span>@InterfaceAudience.Private<a name="line.33"></a>
-<span class="sourceLineNo">034</span>public final class TagUtil {<a name="line.34"></a>
-<span class="sourceLineNo">035</span><a name="line.35"></a>
-<span class="sourceLineNo">036</span>  /**<a name="line.36"></a>
-<span class="sourceLineNo">037</span>   * Private constructor to keep this class from being instantiated.<a name="line.37"></a>
-<span class="sourceLineNo">038</span>   */<a name="line.38"></a>
-<span class="sourceLineNo">039</span>  private TagUtil(){}<a name="line.39"></a>
-<span class="sourceLineNo">040</span><a name="line.40"></a>
-<span class="sourceLineNo">041</span>  /**<a name="line.41"></a>
-<span class="sourceLineNo">042</span>   * Returns tag value in a new byte array.<a name="line.42"></a>
-<span class="sourceLineNo">043</span>   * Primarily for use client-side. If server-side, use<a name="line.43"></a>
-<span class="sourceLineNo">044</span>   * {@link Tag#getValueArray()} with appropriate {@link Tag#getValueOffset()}<a name="line.44"></a>
-<span class="sourceLineNo">045</span>   * and {@link Tag#getValueLength()} instead to save on allocations.<a name="line.45"></a>
-<span class="sourceLineNo">046</span>   *<a name="line.46"></a>
-<span class="sourceLineNo">047</span>   * @param tag The Tag whose value to be returned<a name="line.47"></a>
-<span class="sourceLineNo">048</span>   * @return tag value in a new byte array.<a name="line.48"></a>
-<span class="sourceLineNo">049</span>   */<a name="line.49"></a>
-<span class="sourceLineNo">050</span>  public static byte[] cloneValue(Tag tag) {<a name="line.50"></a>
-<span class="sourceLineNo">051</span>    int tagLength = tag.getValueLength();<a name="line.51"></a>
-<span class="sourceLineNo">052</span>    byte[] tagArr = new byte[tagLength];<a name="line.52"></a>
-<span class="sourceLineNo">053</span>    if (tag.hasArray()) {<a name="line.53"></a>
-<span class="sourceLineNo">054</span>      Bytes.putBytes(tagArr, 0, tag.getValueArray(), tag.getValueOffset(), tagLength);<a name="line.54"></a>
-<span class="sourceLineNo">055</span>    } else {<a name="line.55"></a>
-<span class="sourceLineNo">056</span>      ByteBufferUtils.copyFromBufferToArray(tagArr, tag.getValueByteBuffer(), tag.getValueOffset(),<a name="line.56"></a>
-<span class="sourceLineNo">057</span>          0, tagLength);<a name="line.57"></a>
-<span class="sourceLineNo">058</span>    }<a name="line.58"></a>
-<span class="sourceLineNo">059</span>    return tagArr;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>  }<a name="line.60"></a>
-<span class="sourceLineNo">061</span><a name="line.61"></a>
-<span class="sourceLineNo">062</span>  /**<a name="line.62"></a>
-<span class="sourceLineNo">063</span>   * Creates list of tags from given byte array, expected that it is in the expected tag format.<a name="line.63"></a>
-<span class="sourceLineNo">064</span>   *<a name="line.64"></a>
-<span class="sourceLineNo">065</span>   * @param b The byte array<a name="line.65"></a>
-<span class="sourceLineNo">066</span>   * @param offset The offset in array where tag bytes begin<a name="line.66"></a>
-<span class="sourceLineNo">067</span>   * @param length Total length of all tags bytes<a name="line.67"></a>
-<span class="sourceLineNo">068</span>   * @return List of tags<a name="line.68"></a>
-<span class="sourceLineNo">069</span>   */<a name="line.69"></a>
-<span class="sourceLineNo">070</span>  public static List&lt;Tag&gt; asList(byte[] b, int offset, int length) {<a name="line.70"></a>
-<span class="sourceLineNo">071</span>    List&lt;Tag&gt; tags = new ArrayList&lt;Tag&gt;();<a name="line.71"></a>
-<span class="sourceLineNo">072</span>    int pos = offset;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>    while (pos &lt; offset + length) {<a name="line.73"></a>
-<span class="sourceLineNo">074</span>      int tagLen = Bytes.readAsInt(b, pos, TAG_LENGTH_SIZE);<a name="line.74"></a>
-<span class="sourceLineNo">075</span>      tags.add(new ArrayBackedTag(b, pos, tagLen + TAG_LENGTH_SIZE));<a name="line.75"></a>
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-<span class="sourceLineNo">078</span>    return tags;<a name="line.78"></a>
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-<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>   * Creates list of tags from given ByteBuffer, expected that it is in the expected tag format.<a name="line.82"></a>
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-<span class="sourceLineNo">084</span>   * @param b The ByteBuffer<a name="line.84"></a>
-<span class="sourceLineNo">085</span>   * @param offset The offset in ByteBuffer where tag bytes begin<a name="line.85"></a>
-<span class="sourceLineNo">086</span>   * @param length Total length of all tags bytes<a name="line.86"></a>
-<span class="sourceLineNo">087</span>   * @return List of tags<a name="line.87"></a>
-<span class="sourceLineNo">088</span>   */<a name="line.88"></a>
-<span class="sourceLineNo">089</span>  public static List&lt;Tag&gt; asList(ByteBuffer b, int offset, int length) {<a name="line.89"></a>
-<span class="sourceLineNo">090</span>    List&lt;Tag&gt; tags = new ArrayList&lt;Tag&gt;();<a name="line.90"></a>
-<span class="sourceLineNo">091</span>    int pos = offset;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>    while (pos &lt; offset + length) {<a name="line.92"></a>
-<span class="sourceLineNo">093</span>      int tagLen = ByteBufferUtils.readAsInt(b, pos, TAG_LENGTH_SIZE);<a name="line.93"></a>
-<span class="sourceLineNo">094</span>      tags.add(new OffheapTag(b, pos, tagLen + TAG_LENGTH_SIZE));<a name="line.94"></a>
-<span class="sourceLineNo">095</span>      pos += TAG_LENGTH_SIZE + tagLen;<a name="line.95"></a>
-<span class="sourceLineNo">096</span>    }<a name="line.96"></a>
-<span class="sourceLineNo">097</span>    return tags;<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>  /**<a name="line.100"></a>
-<span class="sourceLineNo">101</span>   * Write a list of tags into a byte array<a name="line.101"></a>
-<span class="sourceLineNo">102</span>   *<a name="line.102"></a>
-<span class="sourceLineNo">103</span>   * @param tags The list of tags<a name="line.103"></a>
-<span class="sourceLineNo">104</span>   * @return the serialized tag data as bytes<a name="line.104"></a>
-<span class="sourceLineNo">105</span>   */<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  public static byte[] fromList(List&lt;Tag&gt; tags) {<a name="line.106"></a>
-<span class="sourceLineNo">107</span>    if (tags.isEmpty()) {<a name="line.107"></a>
-<span class="sourceLineNo">108</span>      return HConstants.EMPTY_BYTE_ARRAY;<a name="line.108"></a>
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-<span class="sourceLineNo">110</span>    int length = 0;<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    for (Tag tag : tags) {<a name="line.111"></a>
-<span class="sourceLineNo">112</span>      length += tag.getValueLength() + Tag.INFRASTRUCTURE_SIZE;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>    }<a name="line.113"></a>
-<span class="sourceLineNo">114</span>    byte[] b = new byte[length];<a name="line.114"></a>
-<span class="sourceLineNo">115</span>    int pos = 0;<a name="line.115"></a>
-<span class="sourceLineNo">116</span>    int tlen;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>    for (Tag tag : tags) {<a name="line.117"></a>
-<span class="sourceLineNo">118</span>      tlen = tag.getValueLength();<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      pos = Bytes.putAsShort(b, pos, tlen + Tag.TYPE_LENGTH_SIZE);<a name="line.119"></a>
-<span class="sourceLineNo">120</span>      pos = Bytes.putByte(b, pos, tag.getType());<a name="line.120"></a>
-<span class="sourceLineNo">121</span>      if (tag.hasArray()) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span>        pos = Bytes.putBytes(b, pos, tag.getValueArray(), tag.getValueOffset(), tlen);<a name="line.122"></a>
-<span class="sourceLineNo">123</span>      } else {<a name="line.123"></a>
-<span class="sourceLineNo">124</span>        ByteBufferUtils.copyFromBufferToArray(b, tag.getValueByteBuffer(), tag.getValueOffset(),<a name="line.124"></a>
-<span class="sourceLineNo">125</span>            pos, tlen);<a name="line.125"></a>
-<span class="sourceLineNo">126</span>        pos += tlen;<a name="line.126"></a>
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-<span class="sourceLineNo">129</span>    return b;<a name="line.129"></a>
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-<span class="sourceLineNo">131</span><a name="line.131"></a>
-<span class="sourceLineNo">132</span>  /**<a name="line.132"></a>
-<span class="sourceLineNo">133</span>   * Converts the value bytes of the given tag into a long value<a name="line.133"></a>
-<span class="sourceLineNo">134</span>   * @param tag The Tag<a name="line.134"></a>
-<span class="sourceLineNo">135</span>   * @return value as long<a name="line.135"></a>
-<span class="sourceLineNo">136</span>   */<a name="line.136"></a>
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-<span class="sourceLineNo">138</span>    if (tag.hasArray()) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span>      return Bytes.toLong(tag.getValueArray(), tag.getValueOffset(), tag.getValueLength());<a name="line.139"></a>
-<span class="sourceLineNo">140</span>    }<a name="line.140"></a>
-<span class="sourceLineNo">141</span>    return ByteBufferUtils.toLong(tag.getValueByteBuffer(), tag.getValueOffset());<a name="line.141"></a>
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-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span>  /**<a name="line.144"></a>
-<span class="sourceLineNo">145</span>   * Converts the value bytes of the given tag into a byte value<a name="line.145"></a>
-<span class="sourceLineNo">146</span>   * @param tag The Tag<a name="line.146"></a>
-<span class="sourceLineNo">147</span>   * @return value as byte<a name="line.147"></a>
-<span class="sourceLineNo">148</span>   */<a name="line.148"></a>
-<span class="sourceLineNo">149</span>  public static byte getValueAsByte(Tag tag) {<a name="line.149"></a>
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-<span class="sourceLineNo">151</span>      return tag.getValueArray()[tag.getValueOffset()];<a name="line.151"></a>
-<span class="sourceLineNo">152</span>    }<a name="line.152"></a>
-<span class="sourceLineNo">153</span>    return ByteBufferUtils.toByte(tag.getValueByteBuffer(), tag.getValueOffset());<a name="line.153"></a>
-<span class="sourceLineNo">154</span>  }<a name="line.154"></a>
-<span class="sourceLineNo">155</span><a name="line.155"></a>
-<span class="sourceLineNo">156</span>  /**<a name="line.156"></a>
-<span class="sourceLineNo">157</span>   * Converts the value bytes of the given tag into a String value<a name="line.157"></a>
-<span class="sourceLineNo">158</span>   * @param tag The Tag<a name="line.158"></a>
-<span class="sourceLineNo">159</span>   * @return value as String<a name="line.159"></a>
-<span class="sourceLineNo">160</span>   */<a name="line.160"></a>
-<span class="sourceLineNo">161</span>  public static String getValueAsString(Tag tag){<a name="line.161"></a>
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-<span class="sourceLineNo">163</span>      return Bytes.toString(tag.getValueArray(), tag.getValueOffset(), tag.getValueLength());<a name="line.163"></a>
-<span class="sourceLineNo">164</span>    }<a name="line.164"></a>
-<span class="sourceLineNo">165</span>    return Bytes.toString(cloneValue(tag));<a name="line.165"></a>
-<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
-<span class="sourceLineNo">167</span><a name="line.167"></a>
-<span class="sourceLineNo">168</span>  /**<a name="line.168"></a>
-<span class="sourceLineNo">169</span>   * Matches the value part of given tags<a name="line.169"></a>
-<span class="sourceLineNo">170</span>   * @param t1 Tag to match the value<a name="line.170"></a>
-<span class="sourceLineNo">171</span>   * @param t2 Tag to match the value<a name="line.171"></a>
-<span class="sourceLineNo">172</span>   * @return True if values of both tags are same.<a name="line.172"></a>
-<span class="sourceLineNo">173</span>   */<a name="line.173"></a>
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-<span class="sourceLineNo">177</span>          t2.getValueArray(), t2.getValueOffset(), t2.getValueLength());<a name="line.177"></a>
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-<span class="sourceLineNo">181</span>          t2.getValueLength(), t1.getValueArray(), t1.getValueOffset(), t1.getValueLength());<a name="line.181"></a>
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-<span class="sourceLineNo">184</span>      return ByteBufferUtils.equals(t1.getValueByteBuffer(), t1.getValueOffset(),<a name="line.184"></a>
-<span class="sourceLineNo">185</span>          t1.getValueLength(), t2.getValueArray(), t2.getValueOffset(), t2.getValueLength());<a name="line.185"></a>
-<span class="sourceLineNo">186</span>    }<a name="line.186"></a>
-<span class="sourceLineNo">187</span>    return ByteBufferUtils.equals(t1.getValueByteBuffer(), t1.getValueOffset(), t1.getValueLength(),<a name="line.187"></a>
-<span class="sourceLineNo">188</span>        t2.getValueByteBuffer(), t2.getValueOffset(), t2.getValueLength());<a name="line.188"></a>
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-<span class="sourceLineNo">190</span><a name="line.190"></a>
-<span class="sourceLineNo">191</span>  /**<a name="line.191"></a>
-<span class="sourceLineNo">192</span>   * Copies the tag's value bytes to the given byte array<a name="line.192"></a>
-<span class="sourceLineNo">193</span>   * @param tag The Tag<a name="line.193"></a>
-<span class="sourceLineNo">194</span>   * @param out The byte array where to copy the Tag value.<a name="line.194"></a>
-<span class="sourceLineNo">195</span>   * @param offset The offset within 'out' array where to copy the Tag value.<a name="line.195"></a>
-<span class="sourceLineNo">196</span>   */<a name="line.196"></a>
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-<span class="sourceLineNo">198</span>    if (tag.hasArray()) {<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      Bytes.putBytes(out, offset, tag.getValueArray(), tag.getValueOffset(), tag.getValueLength());<a name="line.199"></a>
-<span class="sourceLineNo">200</span>    } else {<a name="line.200"></a>
-<span class="sourceLineNo">201</span>      ByteBufferUtils.copyFromBufferToArray(out, tag.getValueByteBuffer(), tag.getValueOffset(),<a name="line.201"></a>
-<span class="sourceLineNo">202</span>          offset, tag.getValueLength());<a name="line.202"></a>
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-<span class="sourceLineNo">211</span>   * @throws IOException When varint is malformed and not able to be read correctly<a name="line.211"></a>
-<span class="sourceLineNo">212</span>   */<a name="line.212"></a>
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-<span class="sourceLineNo">215</span>      return StreamUtils.readRawVarint32(tag.getValueArray(), offset);<a name="line.215"></a>
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-<span class="sourceLineNo">219</span>}<a name="line.219"></a>
+<span class="sourceLineNo">025</span>import java.util.Iterator;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a>
+<span class="sourceLineNo">027</span><a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.io.util.StreamUtils;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.ByteBufferUtils;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>@InterfaceAudience.Private<a name="line.34"></a>
+<span class="sourceLineNo">035</span>public final class TagUtil {<a name="line.35"></a>
+<span class="sourceLineNo">036</span><a name="line.36"></a>
+<span class="sourceLineNo">037</span>  /**<a name="line.37"></a>
+<span class="sourceLineNo">038</span>   * Private constructor to keep this class from being instantiated.<a name="line.38"></a>
+<span class="sourceLineNo">039</span>   */<a name="line.39"></a>
+<span class="sourceLineNo">040</span>  private TagUtil(){}<a name="line.40"></a>
+<span class="sourceLineNo">041</span><a name="line.41"></a>
+<span class="sourceLineNo">042</span>  /**<a name="line.42"></a>
+<span class="sourceLineNo">043</span>   * Returns tag value in a new byte array.<a name="line.43"></a>
+<span class="sourceLineNo">044</span>   * Primarily for use client-side. If server-side, use<a name="line.44"></a>
+<span class="sourceLineNo">045</span>   * {@link Tag#getValueArray()} with appropriate {@link Tag#getValueOffset()}<a name="line.45"></a>
+<span class="sourceLineNo">046</span>   * and {@link Tag#getValueLength()} instead to save on allocations.<a name="line.46"></a>
+<span class="sourceLineNo">047</span>   *<a name="line.47"></a>
+<span class="sourceLineNo">048</span>   * @param tag The Tag whose value to be returned<a name="line.48"></a>
+<span class="sourceLineNo">049</span>   * @return tag value in a new byte array.<a name="line.49"></a>
+<span class="sourceLineNo">050</span>   */<a name="line.50"></a>
+<span class="sourceLineNo">051</span>  public static byte[] cloneValue(Tag tag) {<a name="line.51"></a>
+<span class="sourceLineNo">052</span>    int tagLength = tag.getValueLength();<a name="line.52"></a>
+<span class="sourceLineNo">053</span>    byte[] tagArr = new byte[tagLength];<a name="line.53"></a>
+<span class="sourceLineNo">054</span>    if (tag.hasArray()) {<a name="line.54"></a>
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+<span class="sourceLineNo">084</span>   *<a name="line.84"></a>
+<span class="sourceLineNo">085</span>   * @param b The ByteBuffer<a name="line.85"></a>
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+<span class="sourceLineNo">102</span>   * Write a list of tags into a byte array<a name="line.102"></a>
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+<span class="sourceLineNo">104</span>   * @param tags The list of tags<a name="line.104"></a>
+<span class="sourceLineNo">105</span>   * @return the serialized tag data as bytes<a name="line.105"></a>
+<span class="sourceLineNo">106</span>   */<a name="line.106"></a>
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+<span class="sourceLineNo">127</span>        pos += tlen;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      }<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    }<a name="line.129"></a>
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+<span class="sourceLineNo">132</span><a name="line.132"></a>
+<span class="sourceLineNo">133</span>  /**<a name="line.133"></a>
+<span class="sourceLineNo">134</span>   * Converts the value bytes of the given tag into a long value<a name="line.134"></a>
+<span class="sourceLineNo">135</span>   * @param tag The Tag<a name="line.135"></a>
+<span class="sourceLineNo">136</span>   * @return value as long<a name="line.136"></a>
+<span class="sourceLineNo">137</span>   */<a name="line.137"></a>
+<span class="sourceLineNo">138</span>  public static long getValueAsLong(Tag tag) {<a name="line.138"></a>
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+<span class="sourceLineNo">144</span><a name="line.144"></a>
+<span class="sourceLineNo">145</span>  /**<a name="line.145"></a>
+<span class="sourceLineNo">146</span>   * Converts the value bytes of the given tag into a byte value<a name="line.146"></a>
+<span class="sourceLineNo">147</span>   * @param tag The Tag<a name="line.147"></a>
+<span class="sourceLineNo">148</span>   * @return value as byte<a name="line.148"></a>
+<span class="sourceLineNo">149</span>   */<a name="line.149"></a>
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+<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
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+<span class="sourceLineNo">155</span>  }<a name="line.155"></a>
+<span class="sourceLineNo">156</span><a name="line.156"></a>
+<span class="sourceLineNo">157</span>  /**<a name="line.157"></a>
+<span class="sourceLineNo">158</span>   * Converts the value bytes of the given tag into a String value<a name="line.158"></a>
+<span class="sourceLineNo">159</span>   * @param tag The Tag<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   * @return value as String<a name="line.160"></a>
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+<span class="sourceLineNo">165</span>    }<a name="line.165"></a>
+<span class="sourceLineNo">166</span>    return Bytes.toString(cloneValue(tag));<a name="line.166"></a>
+<span class="sourceLineNo">167</span>  }<a name="line.167"></a>
+<span class="sourceLineNo">168</span><a name="line.168"></a>
+<span class="sourceLineNo">169</span>  /**<a name="line.169"></a>
+<span class="sourceLineNo">170</span>   * Matches the value part of given tags<a name="line.170"></a>
+<span class="sourceLineNo">171</span>   * @param t1 Tag to match the value<a name="line.171"></a>
+<span class="sourceLineNo">172</span>   * @param t2 Tag to match the value<a name="line.172"></a>
+<span class="sourceLineNo">173</span>   * @return True if values of both tags are same.<a name="line.173"></a>
+<span class="sourceLineNo">174</span>   */<a name="line.174"></a>
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+<span class="sourceLineNo">179</span>    }<a name="line.179"></a>
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+<span class="sourceLineNo">183</span>    }<a name="line.183"></a>
+<span class="sourceLineNo">184</span>    if (t2.hasArray()) {<a name="line.184"></a>
+<span class="sourceLineNo">185</span>      return ByteBufferUtils.equals(t1.getValueByteBuffer(), t1.getValueOffset(),<a name="line.185"></a>
+<span class="sourceLineNo">186</span>          t1.getValueLength(), t2.getValueArray(), t2.getValueOffset(), t2.getValueLength());<a name="line.186"></a>
+<span class="sourceLineNo">187</span>    }<a name="line.187"></a>
+<span class="sourceLineNo">188</span>    return ByteBufferUtils.equals(t1.getValueByteBuffer(), t1.getValueOffset(), t1.getValueLength(),<a name="line.188"></a>
+<span class="sourceLineNo">189</span>        t2.getValueByteBuffer(), t2.getValueOffset(), t2.getValueLength());<a name="line.189"></a>
+<span class="sourceLineNo">190</span>  }<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span>  /**<a name="line.192"></a>
+<span class="sourceLineNo">193</span>   * Copies the tag's value bytes to the given byte array<a name="line.193"></a>
+<span class="sourceLineNo">194</span>   * @param tag The Tag<a name="line.194"></a>
+<span class="sourceLineNo">195</span>   * @param out The byte array where to copy the Tag value.<a name="line.195"></a>
+<span class="sourceLineNo">196</span>   * @param offset The offset within 'out' array where to copy the Tag value.<a name="line.196"></a>
+<span class="sourceLineNo">197</span>   */<a name="line.197"></a>
+<span class="sourceLineNo">198</span>  public static void copyValueTo(Tag tag, byte[] out, int offset) {<a name="line.198"></a>
+<span class="sourceLineNo">199</span>    if (tag.hasArray()) {<a name="line.199"></a>
+<span class="sourceLineNo">200</span>      Bytes.putBytes(out, offset, tag.getValueArray(), tag.getValueOffset(), tag.getValueLength());<a name="line.200"></a>
+<span class="sourceLineNo">201</span>    } else {<a name="line.201"></a>
+<span class="sourceLineNo">202</span>      ByteBufferUtils.copyFromBufferToArray(out, tag.getValueByteBuffer(), tag.getValueOffset(),<a name="line.202"></a>
+<span class="sourceLineNo">203</span>          offset, tag.getValueLength());<a name="line.203"></a>
+<span class="sourceLineNo">204</span>    }<a name="line.204"></a>
+<span class="sourceLineNo">205</span>  }<a name="line.205"></a>
+<span class="sourceLineNo">206</span><a name="line.206"></a>
+<span class="sourceLineNo">207</span>  /**<a name="line.207"></a>
+<span class="sourceLineNo">208</span>   * Reads an int value stored as a VInt at tag's given offset.<a name="line.208"></a>
+<span class="sourceLineNo">209</span>   * @param tag The Tag<a name="line.209"></a>
+<span class="sourceLineNo">210</span>   * @param offset The offset where VInt bytes begin<a name="line.210"></a>
+<span class="sourceLineNo">211</span>   * @return A pair of the int value and number of bytes taken to store VInt<a name="line.211"></a>
+<span class="sourceLineNo">212</span>   * @throws IOException When varint is malformed and not able to be read correctly<a name="line.212"></a>
+<span class="sourceLineNo">213</span>   */<a name="line.213"></a>
+<span class="sourceLineNo">214</span>  public static Pair&lt;Integer, Integer&gt; readVIntValuePart(Tag tag, int offset) throws IOException {<a name="line.214"></a>
+<span class="sourceLineNo">215</span>    if (tag.hasArray()) {<a name="line.215"></a>
+<span class="sourceLineNo">216</span>      return StreamUtils.readRawVarint32(tag.getValueArray(), offset);<a name="line.216"></a>
+<span class="sourceLineNo">217</span>    }<a name="line.217"></a>
+<span class="sourceLineNo">218</span>    return StreamUtils.readRawVarint32(tag.getValueByteBuffer(), offset);<a name="line.218"></a>
+<span class="sourceLineNo">219</span>  }<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>   * @return A List&amp;lt;Tag&amp;gt; of any Tags found in &lt;code&gt;cell&lt;/code&gt; else null.<a name="line.222"></a>
+<span class="sourceLineNo">223</span>   */<a name="line.223"></a>
+<span class="sourceLineNo">224</span>  public static List&lt;Tag&gt; carryForwardTags(final Cell cell) {<a name="line.224"></a>
+<span class="sourceLineNo">225</span>    return carryForwardTags(null, cell);<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>   * Add to &lt;code&gt;tagsOrNull&lt;/code&gt; any Tags &lt;code&gt;cell&lt;/code&gt; is carrying or null if none.<a name="line.229"></a>
+<span class="sourceLineNo">230</span>   */<a name="line.230"></a>
+<span class="sourceLineNo">231</span>  public static List&lt;Tag&gt; carryForwardTags(final List&lt;Tag&gt; tagsOrNull, final Cell cell) {<a name="line.231"></a>
+<span class="sourceLineNo">232</span>    Iterator&lt;Tag&gt; itr = CellUtil.tagsIterator(cell);<a name="line.232"></a>
+<span class="sourceLineNo">233</span>    if (itr == EMPTY_TAGS_ITR) {<a name="line.233"></a>
+<span class="sourceLineNo">234</span>      // If no Tags, return early.<a name="line.234"></a>
+<span class="sourceLineNo">235</span>      return tagsOrNull;<a name="line.235"></a>
+<span class="sourceLineNo">236</span>    }<a name="line.236"></a>
+<span class="sourceLineNo">237</span>    List&lt;Tag&gt; tags = tagsOrNull;<a name="line.237"></a>
+<span class="sourceLineNo">238</span>    if (tags == null) {<a name="line.238"></a>
+<span class="sourceLineNo">239</span>      tags = new ArrayList&lt;Tag&gt;();<a name="line.239"></a>
+<span class="sourceLineNo">240</span>    }<a name="line.240"></a>
+<span class="sourceLineNo">241</span>    while (itr.hasNext()) {<a name="line.241"></a>
+<span class="sourceLineNo">242</span>      tags.add(itr.next());<a name="line.242"></a>
+<span class="sourceLineNo">243</span>    }<a name="line.243"></a>
+<span class="sourceLineNo">244</span>    return tags;<a name="line.244"></a>
+<span class="sourceLineNo">245</span>  }<a name="line.245"></a>
+<span class="sourceLineNo">246</span><a name="line.246"></a>
+<span class="sourceLineNo">247</span>  /**<a name="line.247"></a>
+<span class="sourceLineNo">248</span>   * @return Carry forward the TTL tag.<a name="line.248"></a>
+<span class="sourceLineNo">249</span>   */<a name="line.249"></a>
+<span class="sourceLineNo">250</span>  public static List&lt;Tag&gt; carryForwardTTLTag(final List&lt;Tag&gt; tagsOrNull, final long ttl) {<a name="line.250"></a>
+<span class="sourceLineNo">251</span>    if (ttl == Long.MAX_VALUE) {<a name="line.251"></a>
+<span class="sourceLineNo">252</span>      return tagsOrNull;<a name="line.252"></a>
+<span class="sourceLineNo">253</span>    }<a name="line.253"></a>
+<span class="sourceLineNo">254</span>    List&lt;Tag&gt; tags = tagsOrNull;<a name="line.254"></a>
+<span class="sourceLineNo">255</span>    // If we are making the array in here, given we are the last thing checked, we'll be only thing<a name="line.255"></a>
+<span class="sourceLineNo">256</span>    // in the array so set its size to '1' (I saw this being done in earlier version of<a name="line.256"></a>
+<span class="sourceLineNo">257</span>    // tag-handling).<a name="line.257"></a>
+<span class="sourceLineNo">258</span>    if (tags == null) {<a name="line.258"></a>
+<span class="sourceLineNo">259</span>      tags = new ArrayList&lt;Tag&gt;(1);<a name="line.259"></a>
+<span class="sourceLineNo">260</span>    }<a name="line.260"></a>
+<span class="sourceLineNo">261</span>    tags.add(new ArrayBackedTag(TagType.TTL_TAG_TYPE, Bytes.toBytes(ttl)));<a name="line.261"></a>
+<span class="sourceLineNo">262</span>    return tags;<a name="line.262"></a>
+<span class="sourceLineNo">263</span>  }<a name="line.263"></a>
+<span class="sourceLineNo">264</span><a name="line.264"></a>
+<span class="sourceLineNo">265</span>  /**<a name="line.265"></a>
+<span class="sourceLineNo">266</span>   * Iterator returned when no Tags. Used by CellUtil too.<a name="line.266"></a>
+<span class="sourceLineNo">267</span>   */<a name="line.267"></a>
+<span class="sourceLineNo">268</span>  static final Iterator&lt;Tag&gt; EMPTY_TAGS_ITR = new Iterator&lt;Tag&gt;() {<a name="line.268"></a>
+<span class="sourceLineNo">269</span>    @Override<a name="line.269"></a>
+<span class="sourceLineNo">270</span>    public boolean hasNext() {<a name="line.270"></a>
+<span class="sourceLineNo">271</span>      return false;<a name="line.271"></a>
+<span class="sourceLineNo">272</span>    }<a name="line.272"></a>
+<span class="sourceLineNo">273</span><a name="line.273"></a>
+<span class="sourceLineNo">274</span>    @Override<a name="line.274"></a>
+<span class="sourceLineNo">275</span>    @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="IT_NO_SUCH_ELEMENT",<a name="line.275"></a>
+<span class="sourceLineNo">276</span>      justification="Intentional")<a name="line.276"></a>
+<span class="sourceLineNo">277</span>    public Tag next() {<a name="line.277"></a>
+<span class="sourceLineNo">278</span>      return null;<a name="line.278"></a>
+<span class="sourceLineNo">279</span>    }<a name="line.279"></a>
+<span class="sourceLineNo">280</span><a name="line.280"></a>
+<span class="sourceLineNo">281</span>    @Override<a name="line.281"></a>
+<span class="sourceLineNo">282</span>    public void remove() {<a name="line.282"></a>
+<span class="sourceLineNo">283</span>      throw new UnsupportedOperationException();<a name="line.283"></a>
+<span class="sourceLineNo">284</span>    }<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>
 
 
 


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