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/**
* 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.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.databinding.DataReader;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageContentsList;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.service.model.BindingMessageInfo;
import org.apache.cxf.service.model.BindingOperationInfo;
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.service.model.ServiceInfo;
import org.apache.cxf.service.model.ServiceModelUtil;
import org.apache.cxf.staxutils.DepthXMLStreamReader;
import org.apache.cxf.staxutils.StaxUtils;
import org.apache.ws.commons.schema.XmlSchemaElement;
public class DocLiteralInInterceptor extends AbstractInDatabindingInterceptor {
public static final String KEEP_PARAMETERS_WRAPPER = DocLiteralInInterceptor.class.getName()
+ ".DocLiteralInInterceptor.keep-parameters-wrapper";
private static final Logger LOG = LogUtils.getL7dLogger(DocLiteralInInterceptor.class);
public DocLiteralInInterceptor() {
super(Phase.UNMARSHAL);
addAfter(URIMappingInterceptor.class.getName());
addBefore(WrappedInInterceptor.class.getName());
}
public void handleMessage(Message message) {
if (isGET(message) && message.getContent(List.class) != null) {
LOG.fine("DocLiteralInInterceptor skipped in HTTP GET method");
return;
}
DepthXMLStreamReader xmlReader = getXMLStreamReader(message);
DataReader dr = getDataReader(message);
MessageContentsList parameters = new MessageContentsList();
Exchange exchange = message.getExchange();
BindingOperationInfo bop = exchange.getBindingOperationInfo();
boolean client = isRequestor(message);
//if body is empty and we have BindingOperationInfo, we do not need to match
//operation anymore, just return
if (bop != null && !StaxUtils.toNextElement(xmlReader)) {
// body may be empty for partial response to decoupled request
return;
}
//bop might be a unwrapped, wrap it back so that we can get correct info
if (bop != null && bop.isUnwrapped()) {
bop = bop.getWrappedOperation();
}
if (bop == null) {
QName startQName = xmlReader == null
? new QName("http://cxf.apache.org/jaxws/provider", "invoke")
: xmlReader.getName();
bop = getBindingOperationInfo(exchange, startQName, client);
}
try {
if (bop != null && bop.isUnwrappedCapable()) {
ServiceInfo si = bop.getBinding().getService();
// Wrapped case
MessageInfo msgInfo = setMessage(message, bop, client, si);
// Determine if we should keep the parameters wrapper
if (shouldWrapParameters(msgInfo, message)) {
QName startQName = xmlReader.getName();
if (!msgInfo.getMessageParts().get(0).getConcreteName().equals(startQName)) {
throw new Fault("UNEXPECTED_WRAPPER_ELEMENT", LOG, null, startQName,
msgInfo.getMessageParts().get(0).getConcreteName());
}
Object wrappedObject = dr.read(msgInfo.getMessageParts().get(0), xmlReader);
parameters.put(msgInfo.getMessageParts().get(0), wrappedObject);
} else {
// Unwrap each part individually if we don't have a wrapper
bop = bop.getUnwrappedOperation();
msgInfo = setMessage(message, bop, client, si);
List messageParts = msgInfo.getMessageParts();
Iterator itr = messageParts.iterator();
// advance just past the wrapped element so we don't get
// stuck
if (xmlReader.getEventType() == XMLStreamConstants.START_ELEMENT) {
StaxUtils.nextEvent(xmlReader);
}
// loop through each child element
getPara(xmlReader, dr, parameters, itr, message);
}
} else {
//Bare style
BindingMessageInfo msgInfo = null;
Endpoint ep = exchange.get(Endpoint.class);
ServiceInfo si = ep.getEndpointInfo().getService();
if (bop != null) { //for xml binding or client side
if (client) {
msgInfo = bop.getOutput();
} else {
msgInfo = bop.getInput();
if (bop.getOutput() == null) {
exchange.setOneWay(true);
}
}
if (msgInfo == null) {
return;
}
setMessage(message, bop, client, si, msgInfo.getMessageInfo());
}
Collection operations = null;
operations = new ArrayList();
operations.addAll(si.getInterface().getOperations());
if (xmlReader == null || !StaxUtils.toNextElement(xmlReader)) {
// empty input
// TO DO : check duplicate operation with no input
for (OperationInfo op : operations) {
MessageInfo bmsg = op.getInput();
if (bmsg.getMessageParts().size() == 0) {
BindingOperationInfo boi = ep.getEndpointInfo().getBinding().getOperation(op);
exchange.put(BindingOperationInfo.class, boi);
exchange.put(OperationInfo.class, op);
exchange.setOneWay(op.isOneWay());
}
}
return;
}
int paramNum = 0;
do {
QName elName = xmlReader.getName();
Object o = null;
MessagePartInfo p;
if (!client && msgInfo != null && msgInfo.getMessageParts() != null
&& msgInfo.getMessageParts().size() == 0) {
//no input messagePartInfo
return;
}
if (msgInfo != null && msgInfo.getMessageParts() != null
&& msgInfo.getMessageParts().size() > 0) {
if (msgInfo.getMessageParts().size() > paramNum) {
p = msgInfo.getMessageParts().get(paramNum);
} else {
p = null;
}
} else {
p = findMessagePart(exchange, operations, elName, client, paramNum, message);
}
if (p == null) {
throw new Fault(new org.apache.cxf.common.i18n.Message("NO_PART_FOUND", LOG, elName),
Fault.FAULT_CODE_CLIENT);
}
o = dr.read(p, xmlReader);
if (Boolean.TRUE.equals(si.getProperty("soap.force.doclit.bare"))
&& parameters.isEmpty()) {
// webservice provider does not need to ensure size
parameters.add(o);
} else {
parameters.put(p, o);
}
paramNum++;
if (message.getContent(XMLStreamReader.class) == null || o == xmlReader) {
xmlReader = null;
}
} while (xmlReader != null && StaxUtils.toNextElement(xmlReader));
}
message.setContent(List.class, parameters);
} catch (Fault f) {
if (!isRequestor(message)) {
f.setFaultCode(Fault.FAULT_CODE_CLIENT);
}
throw f;
}
}
private void getPara(DepthXMLStreamReader xmlReader,
DataReader dr,
MessageContentsList parameters,
Iterator itr,
Message message) {
boolean hasNext = true;
while (itr.hasNext()) {
MessagePartInfo part = itr.next();
if (hasNext) {
hasNext = StaxUtils.toNextElement(xmlReader);
}
Object obj = null;
if (hasNext) {
QName rname = xmlReader.getName();
while (part != null
&& !rname.equals(part.getConcreteName())) {
if (part.getXmlSchema() instanceof XmlSchemaElement) {
//TODO - should check minOccurs=0 and throw validation exception
//thing if the part needs to be here
parameters.put(part, null);
}
if (itr.hasNext()) {
part = itr.next();
} else {
part = null;
}
}
if (part == null) {
return;
}
if (rname.equals(part.getConcreteName())) {
obj = dr.read(part, xmlReader);
}
}
parameters.put(part, obj);
}
}
private MessageInfo setMessage(Message message, BindingOperationInfo operation,
boolean requestor, ServiceInfo si) {
MessageInfo msgInfo = getMessageInfo(message, operation, requestor);
return setMessage(message, operation, requestor, si, msgInfo);
}
protected BindingOperationInfo getBindingOperationInfo(Exchange exchange, QName name,
boolean client) {
BindingOperationInfo bop = ServiceModelUtil.getOperationForWrapperElement(exchange, name, client);
if (bop == null) {
bop = super.getBindingOperationInfo(exchange, name, client);
}
if (bop != null) {
exchange.put(BindingOperationInfo.class, bop);
exchange.put(OperationInfo.class, bop.getOperationInfo());
}
return bop;
}
protected boolean shouldWrapParameters(MessageInfo msgInfo, Message message) {
Object keepParametersWrapperFlag = message.get(KEEP_PARAMETERS_WRAPPER);
if (keepParametersWrapperFlag == null) {
return msgInfo.getMessageParts().get(0).getTypeClass() != null;
} else {
return Boolean.parseBoolean(keepParametersWrapperFlag.toString());
}
}
}