/**
* 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.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.ResourceBundle;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import com.sun.xml.fastinfoset.stax.StAXDocumentSerializer;
import org.apache.cxf.common.i18n.BundleUtils;
import org.apache.cxf.helpers.CastUtils;
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 FIStaxOutInterceptor extends AbstractPhaseInterceptor<Message> {
public static final String FI_ENABLED = "org.apache.cxf.fastinfoset.enabled";
private static final String OUTPUT_STREAM_HOLDER = FIStaxOutInterceptor.class.getName() + ".outputstream";
private static final FIStaxOutEndingInterceptor ENDING = new FIStaxOutEndingInterceptor();
private static final ResourceBundle BUNDLE = BundleUtils.getBundle(FIStaxOutInterceptor.class);
boolean force;
public FIStaxOutInterceptor() {
super(Phase.PRE_STREAM);
addAfter(AttachmentOutInterceptor.class.getName());
addBefore(StaxOutInterceptor.class.getName());
}
public FIStaxOutInterceptor(boolean f) {
this();
force = f;
}
@Override
public void handleFault(Message message) {
super.handleFault(message);
OutputStream os = (OutputStream)message.get(OUTPUT_STREAM_HOLDER);
if (os != null) {
message.setContent(OutputStream.class, os);
}
}
public void handleMessage(Message message) {
OutputStream out = message.getContent(OutputStream.class);
XMLStreamWriter writer = message.getContent(XMLStreamWriter.class);
if (out == null || writer != null) {
return;
}
boolean req = isRequestor(message);
Object o = message.getContextualProperty(FI_ENABLED);
if (!req) {
if (message.getExchange().getInMessage() != null) {
//check incoming accept header
String s = (String)message.getExchange().getInMessage().get(Message.ACCEPT_CONTENT_TYPE);
if (s != null && s.contains("fastinfoset")) {
o = Boolean.TRUE;
}
}
} else {
Map<String, List<String>> headers
= CastUtils.cast((Map<?, ?>)message.get(Message.PROTOCOL_HEADERS));
List<String> accepts = headers.get("Accept");
if (accepts == null) {
accepts = new ArrayList<String>();
headers.put("Accept", accepts);
}
String a = "application/fastinfoset";
if (!accepts.isEmpty()) {
a += ", " + accepts.get(0);
accepts.set(0, a);
} else {
accepts.add(a);
}
}
if (force
|| MessageUtils.isTrue(o)) {
StAXDocumentSerializer serializer = getOutput(message, out);
message.setContent(XMLStreamWriter.class, serializer);
message.removeContent(OutputStream.class);
message.put(OUTPUT_STREAM_HOLDER, out);
message.put(AbstractOutDatabindingInterceptor.DISABLE_OUTPUTSTREAM_OPTIMIZATION,
Boolean.TRUE);
String s = (String)message.get(Message.CONTENT_TYPE);
if (s.contains("application/soap+xml")) {
s = s.replace("application/soap+xml", "application/soap+fastinfoset");
message.put(Message.CONTENT_TYPE, s);
} else {
message.put(Message.CONTENT_TYPE, "application/fastinfoset");
}
try {
serializer.writeStartDocument();
} catch (XMLStreamException e) {
throw new Fault(e);
}
message.getInterceptorChain().add(ENDING);
}
}
private StAXDocumentSerializer getOutput(Message m, OutputStream out) {
/*
StAXDocumentSerializer serializer = (StAXDocumentSerializer)m.getExchange().get(Endpoint.class)
.remove(StAXDocumentSerializer.class.getName());
if (serializer != null) {
serializer.setOutputStream(out);
} else {
serializer = new StAXDocumentSerializer(out);
}
return serializer;
*/
return new StAXDocumentSerializer(out);
}
public static class FIStaxOutEndingInterceptor extends AbstractPhaseInterceptor<Message> {
public FIStaxOutEndingInterceptor() {
super(Phase.PRE_STREAM_ENDING);
getAfter().add(AttachmentOutInterceptor.AttachmentOutEndingInterceptor.class.getName());
}
public void handleMessage(Message message) throws Fault {
try {
XMLStreamWriter xtw = message.getContent(XMLStreamWriter.class);
if (xtw != null) {
xtw.writeEndDocument();
xtw.flush();
xtw.close();
}
/*
if (xtw instanceof StAXDocumentSerializer) {
((StAXDocumentSerializer)xtw).setOutputStream(null);
message.getExchange().get(Endpoint.class)
.put(StAXDocumentSerializer.class.getName(), xtw);
}
*/
OutputStream os = (OutputStream)message.get(OUTPUT_STREAM_HOLDER);
if (os != null) {
message.setContent(OutputStream.class, os);
}
message.removeContent(XMLStreamWriter.class);
} catch (XMLStreamException e) {
throw new Fault(new org.apache.cxf.common.i18n.Message("STAX_WRITE_EXC", BUNDLE), e);
}
}
}
}