1 /*
   2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.xml.internal.ws.message;
  27 
  28 import com.sun.istack.internal.NotNull;
  29 import com.sun.xml.internal.bind.api.Bridge;
  30 import com.sun.xml.internal.ws.api.SOAPVersion;
  31 import com.sun.xml.internal.ws.api.message.Header;
  32 import com.sun.xml.internal.ws.api.message.Message;
  33 import com.sun.xml.internal.ws.api.message.MessageHeaders;
  34 import com.sun.xml.internal.ws.api.message.MessageWritable;
  35 import com.sun.xml.internal.ws.api.message.Packet;
  36 import com.sun.xml.internal.ws.api.message.saaj.SAAJFactory;
  37 import com.sun.xml.internal.ws.encoding.TagInfoset;
  38 import com.sun.xml.internal.ws.message.saaj.SAAJMessage;
  39 import com.sun.xml.internal.ws.spi.db.XMLBridge;
  40 import java.util.ArrayList;
  41 import java.util.Collections;
  42 import org.xml.sax.ContentHandler;
  43 import org.xml.sax.ErrorHandler;
  44 import org.xml.sax.SAXException;
  45 import org.xml.sax.helpers.AttributesImpl;
  46 import org.xml.sax.helpers.LocatorImpl;
  47 
  48 import javax.xml.bind.JAXBException;
  49 import javax.xml.bind.Unmarshaller;
  50 import javax.xml.soap.SOAPException;
  51 import javax.xml.soap.SOAPMessage;
  52 import javax.xml.stream.XMLStreamException;
  53 import javax.xml.stream.XMLStreamWriter;
  54 import javax.xml.transform.Source;
  55 import javax.xml.transform.sax.SAXSource;
  56 
  57 import java.util.List;
  58 import java.util.Map;
  59 
  60 /**
  61  * Partial {@link Message} implementation.
  62  *
  63  * <p>
  64  * This class implements some of the {@link Message} methods.
  65  * The idea is that those implementations may be non-optimal but
  66  * it may save effort in implementing {@link Message} and reduce
  67  * the code size.
  68  *
  69  * <p>
  70  * {@link Message} classes that are used more commonly should
  71  * examine carefully which method can be implemented faster,
  72  * and override them accordingly.
  73  *
  74  * @author Kohsuke Kawaguchi
  75  */
  76 public abstract class AbstractMessageImpl extends Message {
  77     /**
  78      * SOAP version of this message.
  79      * Used to implement some of the methods, but nothing more than that.
  80      *
  81      * <p>
  82      * So if you aren't using those methods that use this field,
  83      * this can be null.
  84      */
  85     protected final SOAPVersion soapVersion;
  86 
  87     protected @NotNull TagInfoset envelopeTag;
  88     protected @NotNull TagInfoset headerTag;
  89     protected @NotNull TagInfoset bodyTag;
  90 
  91     protected static final AttributesImpl EMPTY_ATTS;
  92     protected static final LocatorImpl NULL_LOCATOR = new LocatorImpl();
  93     protected static final List<TagInfoset> DEFAULT_TAGS;
  94 
  95     static void create(SOAPVersion v, List c) {
  96         int base = v.ordinal()*3;
  97         c.add(base, new TagInfoset(v.nsUri, "Envelope", "S", EMPTY_ATTS,"S", v.nsUri));
  98         c.add(base+1, new TagInfoset(v.nsUri, "Header", "S", EMPTY_ATTS));
  99         c.add(base+2, new TagInfoset(v.nsUri, "Body", "S", EMPTY_ATTS));
 100     }
 101 
 102     static {
 103         EMPTY_ATTS = new AttributesImpl();
 104         List<TagInfoset> tagList = new ArrayList<TagInfoset>();
 105         create(SOAPVersion.SOAP_11, tagList);
 106         create(SOAPVersion.SOAP_12, tagList);
 107         DEFAULT_TAGS = Collections.unmodifiableList(tagList);
 108     }
 109 
 110     protected AbstractMessageImpl(SOAPVersion soapVersion) {
 111         this.soapVersion = soapVersion;
 112     }
 113 
 114     @Override
 115     public SOAPVersion getSOAPVersion() {
 116         return soapVersion;
 117     }
 118     /**
 119      * Copy constructor.
 120      */
 121     protected AbstractMessageImpl(AbstractMessageImpl that) {
 122         this.soapVersion = that.soapVersion;
 123     }
 124 
 125     @Override
 126     public Source readEnvelopeAsSource() {
 127         return new SAXSource(new XMLReaderImpl(this), XMLReaderImpl.THE_SOURCE);
 128     }
 129 
 130     @Override
 131     public <T> T readPayloadAsJAXB(Unmarshaller unmarshaller) throws JAXBException {
 132         if(hasAttachments())
 133             unmarshaller.setAttachmentUnmarshaller(new AttachmentUnmarshallerImpl(getAttachments()));
 134         try {
 135             return (T) unmarshaller.unmarshal(readPayloadAsSource());
 136         } finally{
 137             unmarshaller.setAttachmentUnmarshaller(null);
 138         }
 139     }
 140     /** @deprecated */
 141     @Override
 142     public <T> T readPayloadAsJAXB(Bridge<T> bridge) throws JAXBException {
 143         return bridge.unmarshal(readPayloadAsSource(),
 144             hasAttachments()? new AttachmentUnmarshallerImpl(getAttachments()) : null );
 145     }
 146 
 147     @Override
 148     public <T> T readPayloadAsJAXB(XMLBridge<T> bridge) throws JAXBException {
 149         return bridge.unmarshal(readPayloadAsSource(),
 150             hasAttachments()? new AttachmentUnmarshallerImpl(getAttachments()) : null );
 151     }
 152 
 153     /**
 154      * Default implementation that relies on {@link #writePayloadTo(XMLStreamWriter)}
 155      */
 156     @Override
 157     public void writeTo(XMLStreamWriter w) throws XMLStreamException {
 158         String soapNsUri = soapVersion.nsUri;
 159         w.writeStartDocument();
 160         w.writeStartElement("S","Envelope",soapNsUri);
 161         w.writeNamespace("S",soapNsUri);
 162         if(hasHeaders()) {
 163             w.writeStartElement("S","Header",soapNsUri);
 164             MessageHeaders headers = getHeaders();
 165             for (Header h : headers.asList()) {
 166                 h.writeTo(w);
 167             }
 168             w.writeEndElement();
 169         }
 170         // write the body
 171         w.writeStartElement("S","Body",soapNsUri);
 172 
 173         writePayloadTo(w);
 174 
 175         w.writeEndElement();
 176         w.writeEndElement();
 177         w.writeEndDocument();
 178     }
 179 
 180     /**
 181      * Writes the whole envelope as SAX events.
 182      */
 183     @Override
 184     public void writeTo( ContentHandler contentHandler, ErrorHandler errorHandler ) throws SAXException {
 185         String soapNsUri = soapVersion.nsUri;
 186 
 187         contentHandler.setDocumentLocator(NULL_LOCATOR);
 188         contentHandler.startDocument();
 189         contentHandler.startPrefixMapping("S",soapNsUri);
 190         contentHandler.startElement(soapNsUri,"Envelope","S:Envelope",EMPTY_ATTS);
 191         if(hasHeaders()) {
 192             contentHandler.startElement(soapNsUri,"Header","S:Header",EMPTY_ATTS);
 193             MessageHeaders headers = getHeaders();
 194             for (Header h : headers.asList()) {
 195                 h.writeTo(contentHandler,errorHandler);
 196             }
 197             contentHandler.endElement(soapNsUri,"Header","S:Header");
 198         }
 199         // write the body
 200         contentHandler.startElement(soapNsUri,"Body","S:Body",EMPTY_ATTS);
 201         writePayloadTo(contentHandler,errorHandler, true);
 202         contentHandler.endElement(soapNsUri,"Body","S:Body");
 203         contentHandler.endElement(soapNsUri,"Envelope","S:Envelope");
 204     }
 205 
 206     /**
 207      * Writes the payload to SAX events.
 208      *
 209      * @param fragment
 210      *      if true, this method will fire SAX events without start/endDocument events,
 211      *      suitable for embedding this into a bigger SAX event sequence.
 212      *      if false, this method generaets a completely SAX event sequence on its own.
 213      */
 214     protected abstract void writePayloadTo(ContentHandler contentHandler, ErrorHandler errorHandler, boolean fragment) throws SAXException;
 215 
 216     public Message toSAAJ(Packet p, Boolean inbound) throws SOAPException {
 217         SAAJMessage message = SAAJFactory.read(p);
 218         if (message instanceof MessageWritable)
 219             ((MessageWritable) message)
 220                     .setMTOMConfiguration(p.getMtomFeature());
 221         if (inbound != null) transportHeaders(p, inbound, message.readAsSOAPMessage());
 222         return message;
 223     }
 224 
 225     /**
 226      * Default implementation that uses {@link #writeTo(ContentHandler, ErrorHandler)}
 227      */
 228     @Override
 229     public SOAPMessage readAsSOAPMessage() throws SOAPException {
 230         return SAAJFactory.read(soapVersion, this);
 231     }
 232 
 233     @Override
 234     public SOAPMessage readAsSOAPMessage(Packet packet, boolean inbound) throws SOAPException {
 235         SOAPMessage msg = SAAJFactory.read(soapVersion, this, packet);
 236         transportHeaders(packet, inbound, msg);
 237         return msg;
 238     }
 239 
 240     private void transportHeaders(Packet packet, boolean inbound, SOAPMessage msg) throws SOAPException {
 241         Map<String, List<String>> headers = getTransportHeaders(packet, inbound);
 242         if (headers != null) {
 243             addSOAPMimeHeaders(msg.getMimeHeaders(), headers);
 244         }
 245         if (msg.saveRequired()) msg.saveChanges();
 246     }
 247 }