ohair@286: /*
ohair@286:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
ohair@286:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286:  *
ohair@286:  * This code is free software; you can redistribute it and/or modify it
ohair@286:  * under the terms of the GNU General Public License version 2 only, as
ohair@286:  * published by the Free Software Foundation.  Oracle designates this
ohair@286:  * particular file as subject to the "Classpath" exception as provided
ohair@286:  * by Oracle in the LICENSE file that accompanied this code.
ohair@286:  *
ohair@286:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohair@286:  * version 2 for more details (a copy is included in the LICENSE file that
ohair@286:  * accompanied this code).
ohair@286:  *
ohair@286:  * You should have received a copy of the GNU General Public License version
ohair@286:  * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286:  *
ohair@286:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286:  * or visit www.oracle.com if you need additional information or have any
ohair@286:  * questions.
ohair@286:  */
ohair@286: 
ohair@286: package com.sun.xml.internal.ws.wsdl.parser;
ohair@286: 
ohair@286: 
ohair@286: import com.sun.xml.internal.ws.api.model.wsdl.*;
ohair@286: import com.sun.xml.internal.ws.api.wsdl.parser.WSDLParserExtension;
ohair@286: 
ohair@286: import javax.xml.namespace.QName;
ohair@286: import javax.xml.stream.XMLStreamConstants;
ohair@286: import javax.xml.stream.XMLStreamReader;
ohair@286: 
ohair@286: /**
ohair@286:  * {@link WSDLParserExtension} filter that checks if
ohair@286:  * another {@link WSDLParserExtension} is following the contract.
ohair@286:  *
ohair@286:  * <p>
ohair@286:  * This code protects the JAX-WS RI from broken extensions.
ohair@286:  *
ohair@286:  * <p>
ohair@286:  * For now it just checks if {@link XMLStreamReader} is placed
ohair@286:  * at the expected start/end element.
ohair@286:  *
ohair@286:  * @author Kohsuke Kawaguchi
ohair@286:  */
ohair@286: final class FoolProofParserExtension extends DelegatingParserExtension {
ohair@286: 
ohair@286:     public FoolProofParserExtension(WSDLParserExtension core) {
ohair@286:         super(core);
ohair@286:     }
ohair@286: 
ohair@286:     private QName pre(XMLStreamReader xsr) {
ohair@286:         return xsr.getName();
ohair@286:     }
ohair@286: 
ohair@286:     private boolean post(QName tagName, XMLStreamReader xsr, boolean result) {
ohair@286:         if(!tagName.equals(xsr.getName()))
ohair@286:             return foundFool();
ohair@286:         if(result) {
ohair@286:             if(xsr.getEventType()!=XMLStreamConstants.END_ELEMENT)
ohair@286:                 foundFool();
ohair@286:         } else {
ohair@286:             if(xsr.getEventType()!=XMLStreamConstants.START_ELEMENT)
ohair@286:                 foundFool();
ohair@286:         }
ohair@286:         return result;
ohair@286:     }
ohair@286: 
ohair@286:     private boolean foundFool() {
ohair@286:         throw new AssertionError("XMLStreamReader is placed at the wrong place after invoking "+core);
ohair@286:     }
ohair@286: 
ohair@286:     public boolean serviceElements(WSDLService service, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.serviceElements(service, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean portElements(WSDLPort port, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.portElements(port, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean definitionsElements(XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.definitionsElements(reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean bindingElements(WSDLBoundPortType binding, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.bindingElements(binding, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean portTypeElements(WSDLPortType portType, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.portTypeElements(portType, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean portTypeOperationElements(WSDLOperation operation, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.portTypeOperationElements(operation, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean bindingOperationElements(WSDLBoundOperation operation, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.bindingOperationElements(operation, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean messageElements(WSDLMessage msg, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.messageElements(msg, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean portTypeOperationInputElements(WSDLInput input, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.portTypeOperationInputElements(input, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean portTypeOperationOutputElements(WSDLOutput output, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.portTypeOperationOutputElements(output, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean portTypeOperationFaultElements(WSDLFault fault, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.portTypeOperationFaultElements(fault, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean bindingOperationInputElements(WSDLBoundOperation operation, XMLStreamReader reader) {
ohair@286:         return super.bindingOperationInputElements(operation, reader);
ohair@286:     }
ohair@286: 
ohair@286:     public boolean bindingOperationOutputElements(WSDLBoundOperation operation, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.bindingOperationOutputElements(operation, reader));
ohair@286:     }
ohair@286: 
ohair@286:     public boolean bindingOperationFaultElements(WSDLBoundFault fault, XMLStreamReader reader) {
ohair@286:         return post(pre(reader),reader,super.bindingOperationFaultElements(fault, reader));
ohair@286:     }
ohair@286: }