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From jmsn...@apache.org
Subject svn commit: r428793 [2/2] - in /incubator/abdera/java/trunk/client: ./ src/ src/main/ src/main/java/ src/main/java/org/ src/main/java/org/apache/ src/main/java/org/apache/abdera/ src/main/java/org/apache/abdera/protocol/ src/main/java/org/apache/abdera...
Date Fri, 04 Aug 2006 17:36:35 GMT
Added: incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CacheControlUtil.java
URL: http://svn.apache.org/viewvc/incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CacheControlUtil.java?rev=428793&view=auto
==============================================================================
--- incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CacheControlUtil.java
(added)
+++ incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CacheControlUtil.java
Fri Aug  4 10:36:34 2006
@@ -0,0 +1,111 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  The ASF licenses this file to You
+* under the Apache License, Version 2.0 (the "License"); you may not
+* use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.  For additional information regarding
+* copyright in this work, please see the NOTICE file in the top level
+* directory of this distribution.
+*/
+package org.apache.abdera.protocol.util;
+
+import org.apache.abdera.protocol.client.RequestOptions;
+import org.apache.abdera.protocol.client.ResponseBase;
+
+public class CacheControlUtil {
+
+  private static long value(String val) {
+    return (val != null) ? Long.parseLong(val) : -1; 
+  }
+  
+  public static void parseCacheControl(
+    String cc, 
+    RequestOptions options) {
+      CacheControlParser parser = new CacheControlParser(cc);
+      options.setNoCache(false);
+      options.setNoStore(false);
+      options.setNoTransform(false);
+      options.setOnlyIfCached(false);
+      options.setMaxAge(-1);
+      options.setMaxStale(-1);
+      options.setMinFresh(-1);
+      for (String directive : parser) {
+        if (directive.equalsIgnoreCase("no-cache")) {
+          options.setNoCache(true);
+        } else if (directive.equalsIgnoreCase("no-store"))
+          options.setNoStore(true);
+        else if (directive.equalsIgnoreCase("no-transform"))
+          options.setNoTransform(true);
+        else if (directive.equalsIgnoreCase("only-if-cached"))
+          options.setOnlyIfCached(true);
+        else if (directive.equalsIgnoreCase("max-age"))
+          options.setMaxAge(value(parser.getValue(directive)));
+        else if (directive.equalsIgnoreCase("max-stale"))
+          options.setMaxStale(value(parser.getValue(directive)));
+        else if (directive.equalsIgnoreCase("min-fresh"))
+          options.setMinFresh(value(parser.getValue(directive)));
+      }
+  }
+  
+  public static void parseCacheControl(
+    String cc, 
+    ResponseBase response) {
+      CacheControlParser parser = new CacheControlParser(cc);
+      response.setNoCache(false);
+      response.setNoStore(false);
+      response.setNoTransform(false);
+      response.setMustRevalidate(false);
+      response.setPrivate(false);
+      response.setPublic(false);
+      response.setMaxAge(-1);
+      for (String directive : parser) {
+        if (directive.equalsIgnoreCase("no-cache")) {
+          response.setNoCache(true);
+          String value = parser.getValue(directive);
+          if (value != null) {
+            String[] headers = splitAndTrim(value, ",", true);
+            response.setNoCacheHeaders(headers);
+          }
+        } else if (directive.equalsIgnoreCase("no-store"))
+          response.setNoStore(true);
+        else if (directive.equalsIgnoreCase("no-transform"))
+          response.setNoTransform(true);
+        else if (directive.equalsIgnoreCase("must-revalidate"))
+          response.setMustRevalidate(true);
+        else if (directive.equalsIgnoreCase("public"))
+          response.setPublic(true);
+        else if (directive.equalsIgnoreCase("private")) {
+          response.setPrivate(true);
+          String value = parser.getValue(directive);
+          if (value != null) {
+            String[] headers = splitAndTrim(value, ",", true);
+            response.setPrivateHeaders(headers);
+          }
+        } else if (directive.equalsIgnoreCase("max-age"))
+          response.setMaxAge(value(parser.getValue(directive)));
+      }
+  }
+  
+  private static String unquote(String s) {
+    if (s == null || s.length() == 0) return s;
+    if (s.startsWith("\"")) s = s.substring(1);
+    if (s.endsWith("\"")) s = s.substring(0, s.length() - 1);
+    return s;
+  }
+  
+  public static String[] splitAndTrim(String value, String delim, boolean unquote) {
+    String[] headers = (unquote) ? unquote(value).split(delim) : value.split(delim);
+    for (int n = 0; n < headers.length; n++) {
+      headers[n] = headers[n].trim();
+    }
+    return headers;
+  }
+}

Added: incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CachingInputStream.java
URL: http://svn.apache.org/viewvc/incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CachingInputStream.java?rev=428793&view=auto
==============================================================================
--- incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CachingInputStream.java
(added)
+++ incubator/abdera/java/trunk/client/src/main/java/org/apache/abdera/protocol/util/CachingInputStream.java
Fri Aug  4 10:36:34 2006
@@ -0,0 +1,89 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  The ASF licenses this file to You
+* under the Apache License, Version 2.0 (the "License"); you may not
+* use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.  For additional information regarding
+* copyright in this work, please see the NOTICE file in the top level
+* directory of this distribution.
+*/
+package org.apache.abdera.protocol.util;
+
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+/**
+ * The CachingInputStream will automatically write 
+ * read bytes out to an OutputStream.  
+ */
+public class CachingInputStream 
+  extends FilterInputStream {
+
+  private OutputStream out;
+  private boolean consumeOnClose = true;
+  
+  public CachingInputStream(
+    InputStream in, 
+    OutputStream out,
+    boolean consumeOnClose) {
+      super(in);
+      this.out = out;
+      this.consumeOnClose = consumeOnClose;
+  }
+
+  protected int write(int n) throws IOException {
+    if (out != null) out.write(n);
+    return n;
+  }
+  
+  protected void write(byte[] b, int off, int len) throws IOException {
+    if (out != null) out.write(b, off, len);
+  }
+  
+  protected void close_out() throws IOException {
+    if (out != null) out.close();
+  }
+  
+  public void flush() throws IOException {
+    if (out != null) out.flush();
+  }
+  
+  @Override
+  public int read() throws IOException {
+    int n = write(super.read());
+    if (n == -1) close();
+    return n;
+  }
+
+  @Override
+  public int read(byte[] b, int off, int len) throws IOException {
+    int n = super.read(b, off, len);
+    if (n != -1) write(b,0,n);
+    if (n == -1) close();
+    return n;
+  }
+
+  @Override
+  public void close() throws IOException {
+    if (consumeOnClose) {
+      byte[] buf = new byte[1024];
+      int n = -1;
+      while ((n = read(buf)) != -1) {
+        write(buf,0,n);
+      }
+    }
+    flush();
+    close_out();
+    super.close();
+  }
+}



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