/*
* 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.nhttp.util;
import org.apache.axis2.AxisFault;
import org.apache.axis2.context.MessageContext;
import org.apache.axis2.transport.MessageFormatter;
import org.apache.axis2.transport.TransportUtils;
import org.apache.axis2.util.MessageProcessorSelector;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.protocol.HTTP;
import java.util.Map;
/**
* Factory for getting Decorator to Message Formatter . This decorator is needed when extending
* message formatter by adding decoration functionality
*/
public class MessageFormatterDecoratorFactory {
private static final Log log = LogFactory.getLog(MessageFormatterDecoratorFactory.class);
private static final String GZIP_CODEC = "gzip";
public static MessageFormatter createMessageFormatterDecorator(MessageContext msgContext) {
if (msgContext == null) {
throw new IllegalArgumentException("Message Context cannot be null");
}
try {
// Get message formatter based on the content type
MessageFormatter formatter = MessageProcessorSelector.getMessageFormatter(msgContext);
Object o = msgContext.getProperty(MessageContext.TRANSPORT_HEADERS);
if (o != null && o instanceof Map) {
Map headers = (Map) o;
String encode = (String) headers.get(HTTP.CONTENT_ENCODING);
if (encode != null) {
//If message contains 'Accept-Encoding' header and if it's value is 'qzip'
if (GZIP_CODEC.equals(encode)) {
formatter = new GzipMessageFormatterDecorator(formatter);
}
//if there are any type for 'Accept-Encoding' , those should go here
}
}
return formatter;
} catch (AxisFault axisFault) {
String msg = "Cannot find a suitable MessageFormatter : " + axisFault.getMessage();
log.error(msg, axisFault);
}
return null;
}
}