/**
* 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.jaxrs.interceptor;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.HttpMethod;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.NotAcceptableException;
import javax.ws.rs.NotFoundException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import org.apache.cxf.common.i18n.BundleUtils;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.interceptor.Interceptor;
import org.apache.cxf.interceptor.OutgoingChainInterceptor;
import org.apache.cxf.jaxrs.impl.MetadataMap;
import org.apache.cxf.jaxrs.impl.RequestPreprocessor;
import org.apache.cxf.jaxrs.impl.UriInfoImpl;
import org.apache.cxf.jaxrs.lifecycle.ResourceProvider;
import org.apache.cxf.jaxrs.lifecycle.SingletonResourceProvider;
import org.apache.cxf.jaxrs.model.ClassResourceInfo;
import org.apache.cxf.jaxrs.model.OperationResourceInfo;
import org.apache.cxf.jaxrs.model.URITemplate;
import org.apache.cxf.jaxrs.provider.ServerProviderFactory;
import org.apache.cxf.jaxrs.utils.HttpUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
import org.apache.cxf.logging.FaultListener;
import org.apache.cxf.logging.NoOpFaultListener;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageContentsList;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;
public class JAXRSInInterceptor extends AbstractPhaseInterceptor<Message> {
private static final Logger LOG = LogUtils.getL7dLogger(JAXRSInInterceptor.class);
private static final ResourceBundle BUNDLE = BundleUtils.getBundle(JAXRSInInterceptor.class);
private static final String RESOURCE_METHOD = "org.apache.cxf.resource.method";
private static final String RESOURCE_OPERATION_NAME = "org.apache.cxf.resource.operation.name";
public JAXRSInInterceptor() {
super(Phase.UNMARSHAL);
}
public void handleMessage(Message message) {
if (message.getExchange().get(OperationResourceInfo.class) != null) {
// it's a suspended invocation;
return;
}
message.getExchange().put(Message.REST_MESSAGE, Boolean.TRUE);
try {
processRequest(message);
} catch (Fault ex) {
convertExceptionToResponseIfPossible(ex.getCause(), message);
} catch (RuntimeException ex) {
convertExceptionToResponseIfPossible(ex, message);
}
Response r = message.getExchange().get(Response.class);
if (r != null) {
createOutMessage(message, r);
message.getInterceptorChain().doInterceptStartingAt(message,
OutgoingChainInterceptor.class.getName());
}
}
private void processRequest(Message message) {
ServerProviderFactory providerFactory = ServerProviderFactory.getInstance(message);
RequestPreprocessor rp = providerFactory.getRequestPreprocessor();
if (rp != null) {
rp.preprocess(message, new UriInfoImpl(message, null));
}
// Global pre-match request filters
if (JAXRSUtils.runContainerRequestFilters(providerFactory, message, true, null, false)) {
return;
}
// HTTP method
String httpMethod = HttpUtils.getProtocolHeader(message, Message.HTTP_REQUEST_METHOD,
HttpMethod.POST, true);
// Path to match
String rawPath = HttpUtils.getPathToMatch(message, true);
Map<String, List<String>> protocolHeaders = CastUtils.cast((Map<?, ?>)message.get(Message.PROTOCOL_HEADERS));
// Content-Type
String requestContentType = null;
List<String> ctHeaderValues = protocolHeaders.get(Message.CONTENT_TYPE);
if (ctHeaderValues != null) {
requestContentType = ctHeaderValues.get(0);
message.put(Message.CONTENT_TYPE, requestContentType);
}
if (requestContentType == null) {
requestContentType = (String)message.get(Message.CONTENT_TYPE);
if (requestContentType == null) {
requestContentType = MediaType.WILDCARD;
}
}
// Accept
String acceptTypes = null;
List<String> acceptHeaderValues = protocolHeaders.get(Message.ACCEPT_CONTENT_TYPE);
if (acceptHeaderValues != null) {
acceptTypes = acceptHeaderValues.get(0);
message.put(Message.ACCEPT_CONTENT_TYPE, acceptTypes);
}
if (acceptTypes == null) {
acceptTypes = HttpUtils.getProtocolHeader(message, Message.ACCEPT_CONTENT_TYPE, null);
if (acceptTypes == null) {
acceptTypes = "*/*";
message.put(Message.ACCEPT_CONTENT_TYPE, acceptTypes);
}
}
List<MediaType> acceptContentTypes = null;
try {
acceptContentTypes = JAXRSUtils.sortMediaTypes(acceptTypes, JAXRSUtils.MEDIA_TYPE_Q_PARAM);
} catch (IllegalArgumentException ex) {
throw new NotAcceptableException();
}
message.getExchange().put(Message.ACCEPT_CONTENT_TYPE, acceptContentTypes);
//1. Matching target resource class
List<ClassResourceInfo> resources = JAXRSUtils.getRootResources(message);
Map<ClassResourceInfo, MultivaluedMap<String, String>> matchedResources =
JAXRSUtils.selectResourceClass(resources, rawPath, message);
if (matchedResources == null) {
org.apache.cxf.common.i18n.Message errorMsg =
new org.apache.cxf.common.i18n.Message("NO_ROOT_EXC",
BUNDLE,
message.get(Message.REQUEST_URI),
rawPath);
LOG.warning(errorMsg.toString());
Response resp = JAXRSUtils.createResponse(resources, message, errorMsg.toString(),
Response.Status.NOT_FOUND.getStatusCode(), false);
throw new NotFoundException(resp);
}
MultivaluedMap<String, String> matchedValues = new MetadataMap<String, String>();
OperationResourceInfo ori = null;
try {
ori = JAXRSUtils.findTargetMethod(matchedResources, message,
httpMethod, matchedValues, requestContentType, acceptContentTypes, true);
setExchangeProperties(message, ori, matchedValues, resources.size());
} catch (WebApplicationException ex) {
if (JAXRSUtils.noResourceMethodForOptions(ex.getResponse(), httpMethod)) {
Response response = JAXRSUtils.createResponse(resources, null, null, 200, true);
message.getExchange().put(Response.class, response);
return;
} else {
throw ex;
}
}
if (LOG.isLoggable(Level.FINE)) {
LOG.fine("Request path is: " + rawPath);
LOG.fine("Request HTTP method is: " + httpMethod);
LOG.fine("Request contentType is: " + requestContentType);
LOG.fine("Accept contentType is: " + acceptTypes);
LOG.fine("Found operation: " + ori.getMethodToInvoke().getName());
}
setExchangeProperties(message, ori, matchedValues, resources.size());
// Global and name-bound post-match request filters
if (JAXRSUtils.runContainerRequestFilters(providerFactory,
message,
false,
ori.getNameBindings(),
false)) {
return;
}
//Process parameters
try {
List<Object> params = JAXRSUtils.processParameters(ori, matchedValues, message);
message.setContent(List.class, params);
} catch (IOException ex) {
convertExceptionToResponseIfPossible(ex, message);
}
}
private void convertExceptionToResponseIfPossible(Throwable ex, Message message) {
Response excResponse = JAXRSUtils.convertFaultToResponse(ex, message);
if (excResponse == null) {
ServerProviderFactory.getInstance(message).clearThreadLocalProxies();
message.getExchange().put(Message.PROPOGATE_EXCEPTION,
JAXRSUtils.propogateException(message));
throw ex instanceof RuntimeException ? (RuntimeException)ex : new InternalServerErrorException(ex);
}
message.getExchange().put(Response.class, excResponse);
}
private void setExchangeProperties(Message message, OperationResourceInfo ori,
MultivaluedMap<String, String> values,
int numberOfResources) {
final Exchange exchange = message.getExchange();
final ClassResourceInfo cri = ori.getClassResourceInfo();
exchange.put(OperationResourceInfo.class, ori);
exchange.put(JAXRSUtils.ROOT_RESOURCE_CLASS, cri);
message.put(RESOURCE_METHOD, ori.getMethodToInvoke());
message.put(URITemplate.TEMPLATE_PARAMETERS, values);
String plainOperationName = ori.getMethodToInvoke().getName();
if (numberOfResources > 1) {
plainOperationName = cri.getServiceClass().getSimpleName() + "#" + plainOperationName;
}
exchange.put(RESOURCE_OPERATION_NAME, plainOperationName);
if (ori.isOneway()
|| MessageUtils.isTrue(HttpUtils.getProtocolHeader(message, Message.ONE_WAY_REQUEST, null))) {
exchange.setOneWay(true);
}
ResourceProvider rp = cri.getResourceProvider();
if (rp instanceof SingletonResourceProvider) {
//cri.isSingleton is not guaranteed to indicate we have a 'pure' singleton
exchange.put(Message.SERVICE_OBJECT, rp.getInstance(message));
}
}
@Override
public void handleFault(Message message) {
super.handleFault(message);
Object mapProp = message.getContextualProperty("map.cxf.interceptor.fault");
if (mapProp == null || MessageUtils.isTrue(mapProp)) {
Throwable ex = message.getContent(Exception.class);
if (ex instanceof Fault) {
ex = ((Fault)ex).getCause();
}
Response r = JAXRSUtils.convertFaultToResponse(ex, message);
if (r != null) {
message.removeContent(Exception.class);
message.getInterceptorChain().setFaultObserver(null);
if (message.getContextualProperty(FaultListener.class.getName()) == null) {
message.put(FaultListener.class.getName(), new NoOpFaultListener());
}
createOutMessage(message, r);
Iterator<Interceptor<? extends Message>> iterator = message.getInterceptorChain().iterator();
while (iterator.hasNext()) {
Interceptor<? extends Message> inInterceptor = iterator.next();
if (inInterceptor.getClass() == OutgoingChainInterceptor.class) {
((OutgoingChainInterceptor)inInterceptor).handleMessage(message);
return;
}
}
}
}
LOG.fine("Cleanup thread local variables");
Object rootInstance = message.getExchange().remove(JAXRSUtils.ROOT_INSTANCE);
Object rootProvider = message.getExchange().remove(JAXRSUtils.ROOT_PROVIDER);
if (rootInstance != null && rootProvider != null) {
try {
((ResourceProvider)rootProvider).releaseInstance(message, rootInstance);
} catch (Throwable tex) {
LOG.warning("Exception occurred during releasing the service instance, " + tex.getMessage());
}
}
ServerProviderFactory.getInstance(message).clearThreadLocalProxies();
ClassResourceInfo cri = (ClassResourceInfo)message.getExchange().get(JAXRSUtils.ROOT_RESOURCE_CLASS);
if (cri != null) {
cri.clearThreadLocalProxies();
}
}
private Message createOutMessage(Message inMessage, Response r) {
Endpoint e = inMessage.getExchange().get(Endpoint.class);
Message mout = new MessageImpl();
mout.setContent(List.class, new MessageContentsList(r));
mout.setExchange(inMessage.getExchange());
mout = e.getBinding().createMessage(mout);
mout.setInterceptorChain(
OutgoingChainInterceptor.getOutInterceptorChain(inMessage.getExchange()));
inMessage.getExchange().setOutMessage(mout);
return mout;
}
}