Mercurial > jdk8-mips64-public > jaxws / file revision

 /*

  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 package com.sun.xml.internal.ws.message.stream;

 import com.sun.istack.internal.FinalArrayList;

 import com.sun.istack.internal.NotNull;

 import com.sun.xml.internal.stream.buffer.XMLStreamBuffer;

 import com.sun.xml.internal.stream.buffer.XMLStreamBufferSource;

 import com.sun.xml.internal.ws.api.SOAPVersion;

 import com.sun.xml.internal.ws.api.addressing.AddressingVersion;

 import com.sun.xml.internal.ws.api.addressing.WSEndpointReference;

 import com.sun.xml.internal.ws.api.message.Header;

 import com.sun.xml.internal.ws.message.AbstractHeaderImpl;

 import org.w3c.dom.Node;

 import org.xml.sax.ContentHandler;

 import org.xml.sax.ErrorHandler;

 import org.xml.sax.SAXException;

 import javax.xml.soap.SOAPException;

 import javax.xml.soap.SOAPHeader;

 import javax.xml.soap.SOAPMessage;

 import javax.xml.stream.XMLStreamException;

 import javax.xml.stream.XMLStreamReader;

 import javax.xml.stream.XMLStreamWriter;

 import javax.xml.transform.Transformer;

 import javax.xml.transform.TransformerFactory;

 import javax.xml.transform.dom.DOMResult;

 import java.util.List;

 import java.util.Set;

 /**

  * {@link Header} whose physical data representation is an XMLStreamBuffer.

  *

  * @author Paul.Sandoz@Sun.Com

  */

 public abstract class StreamHeader extends AbstractHeaderImpl {

     protected final XMLStreamBuffer _mark;

     protected boolean _isMustUnderstand;

     /**

      * Role or actor value.

      */

     protected @NotNull String _role;

     protected boolean _isRelay;

     protected String _localName;

     protected String _namespaceURI;

     /**

      * Keep the information about an attribute on the header element.

      *

      * TODO: this whole attribute handling could be done better, I think.

      */

     protected static final class Attribute {

         /**

          * Can be empty but never null.

          */

         final String nsUri;

         final String localName;

         final String value;

         public Attribute(String nsUri, String localName, String value) {

             this.nsUri = fixNull(nsUri);

             this.localName = localName;

             this.value = value;

         }

     }

     /**

      * The attributes on the header element.

      * We expect there to be only a small number of them,

      * so the use of {@link List} would be justified.

      *

      * Null if no attribute is present.

      */

     private final FinalArrayList<Attribute> attributes;

     /**

      * Creates a {@link StreamHeader}.

      *

      * @param reader

      *      The parser pointing at the start of the mark.

      *      Technically this information is redundant,

      *      but it achieves a better performance.

      * @param mark

      *      The start of the buffered header content.

      */

     protected StreamHeader(XMLStreamReader reader, XMLStreamBuffer mark) {

         assert reader!=null && mark!=null;

         _mark = mark;

         _localName = reader.getLocalName();

         _namespaceURI = reader.getNamespaceURI();

         attributes = processHeaderAttributes(reader);

     }

     /**

      * Creates a {@link StreamHeader}.

      *

      * @param reader

      *      The parser that points to the start tag of the header.

      *      By the end of this method, the parser will point at

      *      the end tag of this element.

      */

     protected StreamHeader(XMLStreamReader reader) throws XMLStreamException {

         _localName = reader.getLocalName();

         _namespaceURI = reader.getNamespaceURI();

         attributes = processHeaderAttributes(reader);

         // cache the body

         _mark = XMLStreamBuffer.createNewBufferFromXMLStreamReader(reader);

     }

     public final boolean isIgnorable(@NotNull SOAPVersion soapVersion, @NotNull Set<String> roles) {

         // check mustUnderstand

         if(!_isMustUnderstand) return true;

         if (roles == null)

             return true;

         // now role

         return !roles.contains(_role);

     }

     public @NotNull String getRole(@NotNull SOAPVersion soapVersion) {

         assert _role!=null;

         return _role;

     }

     public boolean isRelay() {

         return _isRelay;

     }

     public @NotNull String getNamespaceURI() {

         return _namespaceURI;

     }

     public @NotNull String getLocalPart() {

         return _localName;

     }

     public String getAttribute(String nsUri, String localName) {

         if(attributes!=null) {

             for(int i=attributes.size()-1; i>=0; i-- ) {

                 Attribute a = attributes.get(i);

                 if(a.localName.equals(localName) && a.nsUri.equals(nsUri))

                     return a.value;

             }

         }

         return null;

     }

     /**

      * Reads the header as a {@link XMLStreamReader}

      */

     public XMLStreamReader readHeader() throws XMLStreamException {

         return _mark.readAsXMLStreamReader();

     }

     public void writeTo(XMLStreamWriter w) throws XMLStreamException {

         if(_mark.getInscopeNamespaces().size() > 0)

             _mark.writeToXMLStreamWriter(w,true);

         else

             _mark.writeToXMLStreamWriter(w);

     }

     public void writeTo(SOAPMessage saaj) throws SOAPException {

         try {

             // TODO what about in-scope namespaces

             // Not very efficient consider implementing a stream buffer

             // processor that produces a DOM node from the buffer.

             TransformerFactory tf = TransformerFactory.newInstance();

             Transformer t = tf.newTransformer();

             XMLStreamBufferSource source = new XMLStreamBufferSource(_mark);

             DOMResult result = new DOMResult();

             t.transform(source, result);

             Node d = result.getNode();

             if(d.getNodeType() == Node.DOCUMENT_NODE)

                 d = d.getFirstChild();

             SOAPHeader header = saaj.getSOAPHeader();

             if(header == null)

                 header = saaj.getSOAPPart().getEnvelope().addHeader();

             Node node = header.getOwnerDocument().importNode(d, true);

             header.appendChild(node);

         } catch (Exception e) {

             throw new SOAPException(e);

         }

     }

     public void writeTo(ContentHandler contentHandler, ErrorHandler errorHandler) throws SAXException {

         _mark.writeTo(contentHandler);

     }

     /**

      * Creates an EPR without copying infoset.

      *

      * This is the most common implementation on which {@link Header#readAsEPR(AddressingVersion)}

      * is invoked on.

      */

     @Override @NotNull

     public WSEndpointReference readAsEPR(AddressingVersion expected) throws XMLStreamException {

         return new WSEndpointReference(_mark,expected);

     }

     protected abstract FinalArrayList<Attribute> processHeaderAttributes(XMLStreamReader reader);

     /**

      * Convert null to "".

      */

     private static String fixNull(String s) {

         if(s==null) return "";

         else        return s;

     }

 }