auto import from //depot/cupcake/@135843

1 files changed, 182 insertions, 0 deletions

diff --git a/src/org/apache/http/client/methods/HttpRequestBase.java b/src/org/apache/http/client/methods/HttpRequestBase.java
new file mode 100644
index 0000000..8938ea0
--- /dev/null
+++ b/src/org/apache/http/client/methods/HttpRequestBase.java
@@ -0,0 +1,182 @@
+/*
+ * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/client/methods/HttpRequestBase.java $
+ * $Revision: 674186 $
+ * $Date: 2008-07-05 05:18:54 -0700 (Sat, 05 Jul 2008) $
+ *
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+
+package org.apache.http.client.methods;
+
+import java.io.IOException;
+import java.net.URI;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+import org.apache.http.ProtocolVersion;
+import org.apache.http.RequestLine;
+import org.apache.http.client.utils.CloneUtils;
+import org.apache.http.conn.ClientConnectionRequest;
+import org.apache.http.conn.ConnectionReleaseTrigger;
+import org.apache.http.message.AbstractHttpMessage;
+import org.apache.http.message.BasicRequestLine;
+import org.apache.http.message.HeaderGroup;
+import org.apache.http.params.HttpParams;
+import org.apache.http.params.HttpProtocolParams;
+
+/**
+ * Basic implementation of an HTTP request that can be modified.
+ *
+ * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a>
+ *
+ * @version $Revision: 674186 $
+ * 
+ * @since 4.0
+ */
+public abstract class HttpRequestBase extends AbstractHttpMessage 
+    implements HttpUriRequest, AbortableHttpRequest, Cloneable {
+
+    private Lock abortLock;
+
+    private boolean aborted;
+    
+    private URI uri;
+    private ClientConnectionRequest connRequest;
+    private ConnectionReleaseTrigger releaseTrigger;
+    
+    public HttpRequestBase() {
+        super();
+        this.abortLock = new ReentrantLock();
+    }
+
+    public abstract String getMethod();
+
+    public ProtocolVersion getProtocolVersion() {
+        return HttpProtocolParams.getVersion(getParams());
+    }
+
+    public URI getURI() {
+        return this.uri;
+    }
+    
+    public RequestLine getRequestLine() {
+        String method = getMethod();
+        ProtocolVersion ver = getProtocolVersion();
+        URI uri = getURI();
+        String uritext = null;
+        if (uri != null) {
+            uritext = uri.toASCIIString();
+        }
+        if (uritext == null || uritext.length() == 0) {
+            uritext = "/";
+        }
+        return new BasicRequestLine(method, uritext, ver);
+    }
+
+    public void setURI(final URI uri) {
+        this.uri = uri;
+    }
+
+    public void setConnectionRequest(final ClientConnectionRequest connRequest)
+            throws IOException {
+        this.abortLock.lock();
+        try {
+            if (this.aborted) {
+                throw new IOException("Request already aborted");
+            }
+            
+            this.releaseTrigger = null;
+            this.connRequest = connRequest;
+        } finally {
+            this.abortLock.unlock();
+        }
+    }
+
+    public void setReleaseTrigger(final ConnectionReleaseTrigger releaseTrigger)
+            throws IOException {
+        this.abortLock.lock();
+        try {
+            if (this.aborted) {
+                throw new IOException("Request already aborted");
+            }
+            
+            this.connRequest = null;
+            this.releaseTrigger = releaseTrigger;
+        } finally {
+            this.abortLock.unlock();
+        }
+    }
+    
+    public void abort() {
+        ClientConnectionRequest localRequest;
+        ConnectionReleaseTrigger localTrigger;
+        
+        this.abortLock.lock();
+        try {
+            if (this.aborted) {
+                return;
+            }            
+            this.aborted = true;
+            
+            localRequest = connRequest;
+            localTrigger = releaseTrigger;
+        } finally {
+            this.abortLock.unlock();
+        }        
+
+        // Trigger the callbacks outside of the lock, to prevent
+        // deadlocks in the scenario where the callbacks have
+        // their own locks that may be used while calling
+        // setReleaseTrigger or setConnectionRequest.
+        if (localRequest != null) {
+            localRequest.abortRequest();
+        }
+        if (localTrigger != null) {
+            try {
+                localTrigger.abortConnection();
+            } catch (IOException ex) {
+                // ignore
+            }
+        }
+    }
+    
+    public boolean isAborted() {
+        return this.aborted;
+    }
+
+    @Override
+    public Object clone() throws CloneNotSupportedException {
+        HttpRequestBase clone = (HttpRequestBase) super.clone();
+        clone.abortLock = new ReentrantLock();
+        clone.aborted = false;
+        clone.releaseTrigger = null;
+        clone.connRequest = null;
+        clone.headergroup = (HeaderGroup) CloneUtils.clone(this.headergroup);
+        clone.params = (HttpParams) CloneUtils.clone(this.params);
+        return clone;
+    }
+    
+}