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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.io.IOException;
import java.util.concurrent.TimeUnit;
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.annotation.Contract;
import org.apache.http.annotation.ThreadingBehavior;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.Configurable;
import org.apache.http.client.methods.HttpExecutionAware;
import org.apache.http.client.methods.HttpRequestWrapper;
import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.ClientConnectionRequest;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.conn.ManagedClientConnection;
import org.apache.http.conn.routing.HttpRoute;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.impl.DefaultConnectionReuseStrategy;
import org.apache.http.impl.execchain.MinimalClientExec;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.protocol.HttpRequestExecutor;
import org.apache.http.util.Args;
/**
* Internal class.
*
* @since 4.3
*/
@Contract(threading = ThreadingBehavior.SAFE_CONDITIONAL)
@SuppressWarnings("deprecation")
class MinimalHttpClient extends CloseableHttpClient {
private final HttpClientConnectionManager connManager;
private final MinimalClientExec requestExecutor;
private final HttpParams params;
public MinimalHttpClient(
final HttpClientConnectionManager connManager) {
super();
this.connManager = Args.notNull(connManager, "HTTP connection manager");
this.requestExecutor = new MinimalClientExec(
new HttpRequestExecutor(),
connManager,
DefaultConnectionReuseStrategy.INSTANCE,
DefaultConnectionKeepAliveStrategy.INSTANCE);
this.params = new BasicHttpParams();
}
@Override
protected CloseableHttpResponse doExecute(
final HttpHost target,
final HttpRequest request,
final HttpContext context) throws IOException, ClientProtocolException {
Args.notNull(target, "Target host");
Args.notNull(request, "HTTP request");
HttpExecutionAware execAware = null;
if (request instanceof HttpExecutionAware) {
execAware = (HttpExecutionAware) request;
}
try {
final HttpRequestWrapper wrapper = HttpRequestWrapper.wrap(request);
final HttpClientContext localcontext = HttpClientContext.adapt(
context != null ? context : new BasicHttpContext());
final HttpRoute route = new HttpRoute(target);
RequestConfig config = null;
if (request instanceof Configurable) {
config = ((Configurable) request).getConfig();
}
if (config != null) {
localcontext.setRequestConfig(config);
}
return this.requestExecutor.execute(route, wrapper, localcontext, execAware);
} catch (final HttpException httpException) {
throw new ClientProtocolException(httpException);
}
}
@Override
public HttpParams getParams() {
return this.params;
}
@Override
public void close() {
this.connManager.shutdown();
}
@Override
public ClientConnectionManager getConnectionManager() {
return new ClientConnectionManager() {
@Override
public void shutdown() {
connManager.shutdown();
}
@Override
public ClientConnectionRequest requestConnection(
final HttpRoute route, final Object state) {
throw new UnsupportedOperationException();
}
@Override
public void releaseConnection(
final ManagedClientConnection conn,
final long validDuration, final TimeUnit timeUnit) {
throw new UnsupportedOperationException();
}
@Override
public SchemeRegistry getSchemeRegistry() {
throw new UnsupportedOperationException();
}
@Override
public void closeIdleConnections(final long idletime, final TimeUnit timeUnit) {
connManager.closeIdleConnections(idletime, timeUnit);
}
@Override
public void closeExpiredConnections() {
connManager.closeExpiredConnections();
}
};
}
}
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