/**
* 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.cxf.interceptor;
import java.io.InputStream;
import javax.xml.stream.XMLStreamReader;
import com.sun.xml.fastinfoset.stax.StAXDocumentParser;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;
/**
* Creates an XMLStreamReader from the InputStream on the Message.
*/
public class FIStaxInInterceptor extends AbstractPhaseInterceptor<Message> {
public static final String FI_GET_SUPPORTED = "org.apache.cxf.fastinfoset.get.supported";
public FIStaxInInterceptor() {
this(Phase.POST_STREAM);
}
public FIStaxInInterceptor(String phase) {
super(phase);
addBefore(StaxInInterceptor.class.getName());
}
protected boolean isRequestor(Message message) {
return Boolean.TRUE.equals(message.containsKey(Message.REQUESTOR_ROLE));
}
private StAXDocumentParser getParser(InputStream in) {
StAXDocumentParser parser = new StAXDocumentParser(in);
parser.setStringInterning(true);
parser.setForceStreamClose(true);
parser.setInputStream(in);
return parser;
}
public void handleMessage(Message message) {
if (message.getContent(XMLStreamReader.class) != null
|| !isHttpVerbSupported(message)) {
return;
}
String ct = (String)message.get(Message.CONTENT_TYPE);
if (ct != null && ct.indexOf("fastinfoset") != -1
&& message.getContent(InputStream.class) != null
&& message.getContent(XMLStreamReader.class) == null) {
message.setContent(XMLStreamReader.class, getParser(message.getContent(InputStream.class)));
ct = ct.replace("fastinfoset", "xml");
if (ct.contains("application/xml")) {
ct = ct.replace("application/xml", "text/xml");
}
message.put(Message.CONTENT_TYPE, ct);
message.getExchange().put(FIStaxOutInterceptor.FI_ENABLED, Boolean.TRUE);
if (isRequestor(message)) {
//record the fact that is worked so future requests will
//automatically be FI enabled
Endpoint ep = message.getExchange().getEndpoint();
ep.put(FIStaxOutInterceptor.FI_ENABLED, Boolean.TRUE);
}
}
}
protected boolean isHttpVerbSupported(Message message) {
if (isGET(message)) {
if (isRequestor(message)
&& MessageUtils.isTrue(message.getContextualProperty(FI_GET_SUPPORTED))) {
return true;
}
return false;
} else {
return true;
}
}
}