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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
* .
*
*/
package org.apache.http.impl.client;
import java.util.concurrent.Callable;
import java.util.concurrent.atomic.AtomicBoolean;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.concurrent.FutureCallback;
import org.apache.http.protocol.HttpContext;
class HttpRequestTaskCallable implements Callable {
private final HttpUriRequest request;
private final HttpClient httpclient;
private final AtomicBoolean cancelled = new AtomicBoolean(false);
private final long scheduled = System.currentTimeMillis();
private long started = -1;
private long ended = -1;
private final HttpContext context;
private final ResponseHandler responseHandler;
private final FutureCallback callback;
private final FutureRequestExecutionMetrics metrics;
HttpRequestTaskCallable(
final HttpClient httpClient,
final HttpUriRequest request,
final HttpContext context,
final ResponseHandler responseHandler,
final FutureCallback callback,
final FutureRequestExecutionMetrics metrics) {
this.httpclient = httpClient;
this.responseHandler = responseHandler;
this.request = request;
this.context = context;
this.callback = callback;
this.metrics = metrics;
}
public long getScheduled() {
return scheduled;
}
public long getStarted() {
return started;
}
public long getEnded() {
return ended;
}
@Override
public V call() throws Exception {
if (!cancelled.get()) {
try {
metrics.getActiveConnections().incrementAndGet();
started = System.currentTimeMillis();
try {
metrics.getScheduledConnections().decrementAndGet();
final V result = httpclient.execute(request, responseHandler, context);
ended = System.currentTimeMillis();
metrics.getSuccessfulConnections().increment(started);
if (callback != null) {
callback.completed(result);
}
return result;
} catch (final Exception e) {
metrics.getFailedConnections().increment(started);
ended = System.currentTimeMillis();
if (callback != null) {
callback.failed(e);
}
throw e;
}
} finally {
metrics.getRequests().increment(started);
metrics.getTasks().increment(started);
metrics.getActiveConnections().decrementAndGet();
}
}
throw new IllegalStateException("call has been cancelled for request " + request.getURI());
}
public void cancel() {
cancelled.set(true);
if (callback != null) {
callback.cancelled();
}
}
}
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