aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.ws.message.stream;
aoqi@0: 
aoqi@0: import com.sun.istack.internal.FinalArrayList;
aoqi@0: import com.sun.istack.internal.NotNull;
aoqi@0: import com.sun.xml.internal.stream.buffer.XMLStreamBuffer;
aoqi@0: import com.sun.xml.internal.stream.buffer.XMLStreamBufferException;
aoqi@0: import com.sun.xml.internal.ws.api.message.Header;
aoqi@0: import com.sun.xml.internal.ws.message.AbstractHeaderImpl;
aoqi@0: import org.xml.sax.ContentHandler;
aoqi@0: import org.xml.sax.ErrorHandler;
aoqi@0: import org.xml.sax.SAXException;
aoqi@0: 
aoqi@0: import javax.xml.soap.SOAPException;
aoqi@0: import javax.xml.soap.SOAPMessage;
aoqi@0: import javax.xml.soap.SOAPHeader;
aoqi@0: import javax.xml.stream.XMLStreamException;
aoqi@0: import javax.xml.stream.XMLStreamReader;
aoqi@0: import javax.xml.stream.XMLStreamWriter;
aoqi@0: import javax.xml.ws.WebServiceException;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Used to represent outbound header created from {@link XMLStreamBuffer}.
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * This is optimized for outbound use, so it implements some of the methods lazily,
aoqi@0:  * in a slow way.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi
aoqi@0:  */
aoqi@0: public final class OutboundStreamHeader extends AbstractHeaderImpl {
aoqi@0:     private final XMLStreamBuffer infoset;
aoqi@0:     private final String nsUri,localName;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * The attributes on the header element.
aoqi@0:      * Lazily parsed.
aoqi@0:      * Null if not parsed yet.
aoqi@0:      */
aoqi@0:     private FinalArrayList<Attribute> attributes;
aoqi@0: 
aoqi@0:     public OutboundStreamHeader(XMLStreamBuffer infoset, String nsUri, String localName) {
aoqi@0:         this.infoset = infoset;
aoqi@0:         this.nsUri = nsUri;
aoqi@0:         this.localName = localName;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public @NotNull String getNamespaceURI() {
aoqi@0:         return nsUri;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public @NotNull String getLocalPart() {
aoqi@0:         return localName;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String getAttribute(String nsUri, String localName) {
aoqi@0:         if(attributes==null)
aoqi@0:             parseAttributes();
aoqi@0:         for(int i=attributes.size()-1; i>=0; i-- ) {
aoqi@0:             Attribute a = attributes.get(i);
aoqi@0:             if(a.localName.equals(localName) && a.nsUri.equals(nsUri))
aoqi@0:                 return a.value;
aoqi@0:         }
aoqi@0:         return null;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * We don't really expect this to be used, but just to satisfy
aoqi@0:      * the {@link Header} contract.
aoqi@0:      *
aoqi@0:      * So this is rather slow.
aoqi@0:      */
aoqi@0:     private void parseAttributes() {
aoqi@0:         try {
aoqi@0:             XMLStreamReader reader = readHeader();
aoqi@0: 
aoqi@0:             attributes = new FinalArrayList<Attribute>();
aoqi@0: 
aoqi@0:             for (int i = 0; i < reader.getAttributeCount(); i++) {
aoqi@0:                 final String localName = reader.getAttributeLocalName(i);
aoqi@0:                 final String namespaceURI = reader.getAttributeNamespace(i);
aoqi@0:                 final String value = reader.getAttributeValue(i);
aoqi@0: 
aoqi@0:                 attributes.add(new Attribute(namespaceURI,localName,value));
aoqi@0:             }
aoqi@0:         } catch (XMLStreamException e) {
aoqi@0:             throw new WebServiceException("Unable to read the attributes for {"+nsUri+"}"+localName+" header",e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public XMLStreamReader readHeader() throws XMLStreamException {
aoqi@0:         return infoset.readAsXMLStreamReader();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeTo(XMLStreamWriter w) throws XMLStreamException {
aoqi@0:         infoset.writeToXMLStreamWriter(w,true);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeTo(SOAPMessage saaj) throws SOAPException {
aoqi@0:         try {
aoqi@0:             SOAPHeader header = saaj.getSOAPHeader();
aoqi@0:             if (header == null)
aoqi@0:                 header = saaj.getSOAPPart().getEnvelope().addHeader();
aoqi@0:             infoset.writeTo(header);
aoqi@0:         } catch (XMLStreamBufferException e) {
aoqi@0:             throw new SOAPException(e);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeTo(ContentHandler contentHandler, ErrorHandler errorHandler) throws SAXException {
aoqi@0:         infoset.writeTo(contentHandler,errorHandler);
aoqi@0:     }
aoqi@0: 
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Keep the information about an attribute on the header element.
aoqi@0:      */
aoqi@0:     static final class Attribute {
aoqi@0:         /**
aoqi@0:          * Can be empty but never null.
aoqi@0:          */
aoqi@0:         final String nsUri;
aoqi@0:         final String localName;
aoqi@0:         final String value;
aoqi@0: 
aoqi@0:         public Attribute(String nsUri, String localName, String value) {
aoqi@0:             this.nsUri = fixNull(nsUri);
aoqi@0:             this.localName = localName;
aoqi@0:             this.value = value;
aoqi@0:         }
aoqi@0: 
aoqi@0:         /**
aoqi@0:          * Convert null to "".
aoqi@0:          */
aoqi@0:         private static String fixNull(String s) {
aoqi@0:             if(s==null) return "";
aoqi@0:             else        return s;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * We the performance paranoid people in the JAX-WS RI thinks
aoqi@0:      * saving three bytes is worth while...
aoqi@0:      */
aoqi@0:     private static final String TRUE_VALUE = "1";
aoqi@0:     private static final String IS_REFERENCE_PARAMETER = "IsReferenceParameter";
aoqi@0: }