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etesync-android/lib/httpclient-android/src/main/java/org/apache/http/client/methods/AbstractExecutionAwareReque...

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/*
* ====================================================================
* 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.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import org.apache.http.HttpRequest;
import org.apache.http.client.utils.CloneUtilsHC4;
import org.apache.http.concurrent.Cancellable;
import org.apache.http.conn.ClientConnectionRequest;
import org.apache.http.conn.ConnectionReleaseTrigger;
import org.apache.http.message.AbstractHttpMessage;
@SuppressWarnings("deprecation")
public abstract class AbstractExecutionAwareRequest extends AbstractHttpMessage implements
HttpExecutionAware, AbortableHttpRequest, Cloneable, HttpRequest {
private final AtomicBoolean aborted;
private final AtomicReference<Cancellable> cancellableRef;
protected AbstractExecutionAwareRequest() {
super();
this.aborted = new AtomicBoolean(false);
this.cancellableRef = new AtomicReference<Cancellable>(null);
}
@Deprecated
public void setConnectionRequest(final ClientConnectionRequest connRequest) {
setCancellable(new Cancellable() {
public boolean cancel() {
connRequest.abortRequest();
return true;
}
});
}
@Deprecated
public void setReleaseTrigger(final ConnectionReleaseTrigger releaseTrigger) {
setCancellable(new Cancellable() {
public boolean cancel() {
try {
releaseTrigger.abortConnection();
return true;
} catch (final IOException ex) {
return false;
}
}
});
}
public void abort() {
if (this.aborted.compareAndSet(false, true)) {
final Cancellable cancellable = this.cancellableRef.getAndSet(null);
if (cancellable != null) {
cancellable.cancel();
}
}
}
public boolean isAborted() {
return this.aborted.get();
}
/**
* @since 4.2
*/
public void setCancellable(final Cancellable cancellable) {
if (!this.aborted.get()) {
this.cancellableRef.set(cancellable);
}
}
@Override
public Object clone() throws CloneNotSupportedException {
final AbstractExecutionAwareRequest clone = (AbstractExecutionAwareRequest) super.clone();
clone.headergroup = CloneUtilsHC4.cloneObject(this.headergroup);
clone.params = CloneUtilsHC4.cloneObject(this.params);
return clone;
}
/**
* @since 4.2
*/
public void completed() {
this.cancellableRef.set(null);
}
/**
* Resets internal state of the request making it reusable.
*
* @since 4.2
*/
public void reset() {
final Cancellable cancellable = this.cancellableRef.getAndSet(null);
if (cancellable != null) {
cancellable.cancel();
}
this.aborted.set(false);
}
}