/**
* 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.binding.coloc;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.OutputStream;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.SortedSet;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.stream.XMLStreamReader;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import org.apache.cxf.Bus;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.databinding.DataReader;
import org.apache.cxf.databinding.DataWriter;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.interceptor.Interceptor;
import org.apache.cxf.interceptor.InterceptorChain;
import org.apache.cxf.interceptor.InterceptorProvider;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageContentsList;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.phase.PhaseInterceptorChain;
import org.apache.cxf.service.model.FaultInfo;
import org.apache.cxf.service.model.MessageInfo;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.service.model.OperationInfo;
import org.apache.cxf.staxutils.StaxUtils;
public final class ColocUtil {
private static final Logger LOG = LogUtils.getL7dLogger(ColocUtil.class);
private ColocUtil() {
//Completge
}
public static void setPhases(SortedSet<Phase> list, String start, String end) {
Phase startPhase = new Phase(start, 1);
Phase endPhase = new Phase(end, 2);
Iterator<Phase> iter = list.iterator();
boolean remove = true;
while (iter.hasNext()) {
Phase p = iter.next();
if (remove
&& p.getName().equals(startPhase.getName())) {
remove = false;
} else if (p.getName().equals(endPhase.getName())) {
remove = true;
} else if (remove) {
iter.remove();
}
}
}
public static InterceptorChain getOutInterceptorChain(Exchange ex, SortedSet<Phase> phases) {
Bus bus = ex.get(Bus.class);
PhaseInterceptorChain chain = new PhaseInterceptorChain(phases);
Endpoint ep = ex.get(Endpoint.class);
List<Interceptor<? extends Message>> il = ep.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by endpoint: " + il);
}
chain.add(il);
il = ep.getService().getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by service: " + il);
}
chain.add(il);
il = bus.getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by bus: " + il);
}
chain.add(il);
if (ep.getService().getDataBinding() instanceof InterceptorProvider) {
il = ((InterceptorProvider)ep.getService().getDataBinding()).getOutInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by databinding: " + il);
}
chain.add(il);
}
modifyChain(chain, ex, false);
return chain;
}
public static InterceptorChain getInInterceptorChain(Exchange ex, SortedSet<Phase> phases) {
Bus bus = ex.get(Bus.class);
PhaseInterceptorChain chain = new PhaseInterceptorChain(phases);
Endpoint ep = ex.get(Endpoint.class);
List<Interceptor<? extends Message>> il = ep.getInInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by endpoint: " + il);
}
chain.add(il);
il = ep.getService().getInInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by service: " + il);
}
chain.add(il);
il = bus.getInInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by bus: " + il);
}
chain.add(il);
if (ep.getService().getDataBinding() instanceof InterceptorProvider) {
il = ((InterceptorProvider)ep.getService().getDataBinding()).getInInterceptors();
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Interceptors contributed by databinding: " + il);
}
chain.add(il);
}
chain.setFaultObserver(new ColocOutFaultObserver(bus));
modifyChain(chain, ex, true);
return chain;
}
private static void modifyChain(PhaseInterceptorChain chain, Exchange ex, boolean in) {
modifyChain(chain, ex.getInMessage(), in);
modifyChain(chain, ex.getOutMessage(), in);
}
private static void modifyChain(PhaseInterceptorChain chain, Message m, boolean in) {
if (m == null) {
return;
}
Collection<InterceptorProvider> providers
= CastUtils.cast((Collection<?>)m.get(Message.INTERCEPTOR_PROVIDERS));
if (providers != null) {
for (InterceptorProvider p : providers) {
if (in) {
chain.add(p.getInInterceptors());
} else {
chain.add(p.getOutInterceptors());
}
}
}
String key = in ? Message.IN_INTERCEPTORS : Message.OUT_INTERCEPTORS;
Collection<Interceptor<? extends Message>> is
= CastUtils.cast((Collection<?>)m.get(key));
if (is != null) {
chain.add(is);
}
}
public static boolean isSameOperationInfo(OperationInfo oi1, OperationInfo oi2) {
return oi1.getName().equals(oi2.getName())
&& isSameMessageInfo(oi1.getInput(), oi2.getInput())
&& isSameMessageInfo(oi1.getOutput(), oi2.getOutput())
&& isSameFaultInfo(oi1.getFaults(), oi2.getFaults());
}
public static boolean isCompatibleOperationInfo(OperationInfo oi1, OperationInfo oi2) {
return isSameOperationInfo(oi1, oi2)
|| isAssignableOperationInfo(oi1, Source.class)
|| isAssignableOperationInfo(oi2, Source.class);
}
public static boolean isAssignableOperationInfo(OperationInfo oi, Class<?> cls) {
MessageInfo mi = oi.getInput();
List<MessagePartInfo> mpis = mi.getMessageParts();
return mpis.size() == 1 && cls.isAssignableFrom(mpis.get(0).getTypeClass());
}
public static boolean isSameMessageInfo(MessageInfo mi1, MessageInfo mi2) {
if ((mi1 == null && mi2 != null)
|| (mi1 != null && mi2 == null)) {
return false;
}
if (mi1 != null && mi2 != null) {
List<MessagePartInfo> mpil1 = mi1.getMessageParts();
List<MessagePartInfo> mpil2 = mi2.getMessageParts();
if (mpil1.size() != mpil2.size()) {
return false;
}
int idx = 0;
for (MessagePartInfo mpi1 : mpil1) {
MessagePartInfo mpi2 = mpil2.get(idx);
if (!mpi1.getTypeClass().equals(mpi2.getTypeClass())) {
return false;
}
++idx;
}
}
return true;
}
public static boolean isSameFaultInfo(Collection<FaultInfo> fil1,
Collection<FaultInfo> fil2) {
if ((fil1 == null && fil2 != null)
|| (fil1 != null && fil2 == null)) {
return false;
}
if (fil1 != null && fil2 != null) {
if (fil1.size() != fil2.size()) {
return false;
}
for (FaultInfo fi1 : fil1) {
Iterator<FaultInfo> iter = fil2.iterator();
Class<?> fiClass1 = fi1.getProperty(Class.class.getName(),
Class.class);
boolean match = false;
while (iter.hasNext()) {
FaultInfo fi2 = iter.next();
Class<?> fiClass2 = fi2.getProperty(Class.class.getName(),
Class.class);
//Sender/Receiver Service Model not same for faults wr.t message names.
//So Compare Exception Class Instance.
if (fiClass1.equals(fiClass2)) {
match = true;
break;
}
}
if (!match) {
return false;
}
}
}
return true;
}
public static void convertSourceToObject(Message message) {
List<Object> content = CastUtils.cast(message.getContent(List.class));
if (content == null || content.size() < 1) {
// nothing to convert
return;
}
// only supporting the wrapped style for now (one pojo <-> one source)
Source source = (Source)content.get(0);
DataReader<XMLStreamReader> reader =
message.getExchange().getService().getDataBinding().createReader(XMLStreamReader.class);
MessagePartInfo mpi = getMessageInfo(message).getMessagePart(0);
Object wrappedObject = reader.read(mpi, StaxUtils.createXMLStreamReader(source));
MessageContentsList parameters = new MessageContentsList();
parameters.put(mpi, wrappedObject);
message.setContent(List.class, parameters);
}
public static void convertObjectToSource(Message message) {
List<Object> content = CastUtils.cast(message.getContent(List.class));
if (content == null || content.size() < 1) {
// nothing to convert
return;
}
// only supporting the wrapped style for now (one pojo <-> one source)
Object object = content.get(0);
DataWriter<OutputStream> writer =
message.getExchange().getService().getDataBinding().createWriter(OutputStream.class);
//TODO use a better conversion method to get a Source from a pojo.
ByteArrayOutputStream bos = new ByteArrayOutputStream();
writer.write(object, bos);
content.set(0, new StreamSource(new ByteArrayInputStream(bos.toByteArray())));
}
private static MessageInfo getMessageInfo(Message message) {
OperationInfo oi = message.getExchange().get(OperationInfo.class);
if (MessageUtils.isOutbound(message)) {
return oi.getOutput();
} else {
return oi.getInput();
}
}
}