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Apache Synapse - Non-blocking HTTP/s Transport
/*
* 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.
*/
package org.apache.synapse.transport.passthru.config;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.description.ParameterInclude;
import org.apache.axis2.transport.base.threads.WorkerPool;
import org.apache.http.protocol.*;
import org.apache.synapse.transport.passthru.connections.TargetConnections;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* This class stores configuration specific to HTTP Connectors (Senders)
*/
public class TargetConfiguration extends BaseConfiguration {
private int maxConnections = Integer.MAX_VALUE;
/** Whether User-Agent header coming from client should be preserved */
private boolean preserveUserAgentHeader = false;
/** Whether Server header coming from server should be preserved */
private boolean preserveServerHeader = true;
/** Http headers which should be preserved */
private List preserveHttpHeaders;
private TargetConnections connections = null;
public TargetConfiguration(ConfigurationContext configurationContext,
ParameterInclude parameters,
WorkerPool pool) {
super(configurationContext, parameters, pool);
maxConnections = conf.getIntProperty(
PassThroughConfigPNames.MAX_CONNECTION_PER_TARGET,
Integer.MAX_VALUE);
preserveUserAgentHeader = conf.getBooleanProperty(
PassThroughConfigPNames.USER_AGENT_HEADER_PRESERVE, false);
preserveServerHeader = conf.getBooleanProperty(
PassThroughConfigPNames.SERVER_HEADER_PRESERVE, true);
populatePreserveHttpHeaders(conf.getPreserveHttpHeaders());
}
@Override
protected HttpProcessor initHttpProcessor() {
String userAgent = conf.getStringProperty(
PassThroughConfigPNames.USER_AGENT_HEADER_VALUE,
"Synapse-PT-HttpComponents-NIO");
return new ImmutableHttpProcessor(
new RequestContent(),
new RequestTargetHost(),
new RequestConnControl(),
new RequestUserAgent(userAgent),
new RequestExpectContinue(false));
}
public int getMaxConnections() {
return maxConnections;
}
/**
* Check preserving status of the given http header name
*
* @param headerName http header name which need to check preserving status
* @return preserving status of the given http header
*/
public boolean isPreserveHttpHeader(String headerName) {
if (preserveHttpHeaders == null || preserveHttpHeaders.isEmpty() || headerName == null) {
return false;
}
return preserveHttpHeaders.contains(headerName.toUpperCase());
}
public TargetConnections getConnections() {
return connections;
}
public void setConnections(TargetConnections connections) {
this.connections = connections;
}
/**
* Populate preserve http headers from comma separate string
*
* @param preserveHeaders Comma separated preserve enable http headers
*/
private void populatePreserveHttpHeaders(String preserveHeaders) {
preserveHttpHeaders = new ArrayList();
if (preserveHeaders != null && !preserveHeaders.isEmpty()) {
String[] presHeaders = preserveHeaders.trim().toUpperCase().split(",");
if (presHeaders != null && presHeaders.length > 0) {
preserveHttpHeaders.addAll(Arrays.asList(presHeaders));
}
}
if (preserveServerHeader && !preserveHttpHeaders.contains(HTTP.SERVER_HEADER.toUpperCase())) {
preserveHttpHeaders.add(HTTP.SERVER_HEADER.toUpperCase());
}
if (preserveUserAgentHeader && !preserveHttpHeaders.contains(HTTP.USER_AGENT.toUpperCase())) {
preserveHttpHeaders.add(HTTP.USER_AGENT.toUpperCase());
}
}
}