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

 /*

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  * 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.client;

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

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

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

 import javax.xml.ws.handler.MessageContext;

 import javax.activation.DataHandler;

 import java.util.AbstractMap;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.Map;

 import java.util.Set;

 /**

  * Implements "response context" on top of {@link Packet}.

  *

  * <p>

  * This class creates a read-only {@link Map} view that

  * gets exposed to client applications after an invocation

  * is complete.

  *

  * <p>

  * The design goal of this class is to make it efficient

  * to create a new {@link ResponseContext}, at the expense

  * of making some {@link Map} operations slower. This is

  * justified because the response context is mostly just

  * used to query a few known values, and operations like

  * enumeration isn't likely.

  *

  * <p>

  * Some of the {@link Map} methods requre this class to

  * build the complete {@link Set} of properties, but we

  * try to avoid that as much as possible.

  *

  *

  * <pre>

  * TODO: are we exposing all strongly-typed fields, or

  * do they have appliation/handler scope notion?

  * </pre>

  *

  * @author Kohsuke Kawaguchi

  */

 @SuppressWarnings({"SuspiciousMethodCalls"})    // IDE doesn't like me calling Map methods with key typed as Object

 public class ResponseContext extends AbstractMap<String,Object> {

     private final Packet packet;

     /**

      * Lazily computed.

      */

     private Set<Map.Entry<String,Object>> entrySet;

     /**

      * @param packet

      *      The {@link Packet} to wrap.

      */

     public ResponseContext(Packet packet) {

         this.packet = packet;

     }

     public boolean containsKey(Object key) {

         if(packet.supports(key))

             return packet.containsKey(key);    // strongly typed

         if(packet.invocationProperties.containsKey(key))

             // if handler-scope, hide it

             return !packet.getHandlerScopePropertyNames(true).contains(key);

         return false;

     }

     public Object get(Object key) {

         if(packet.supports(key))

             return packet.get(key);    // strongly typed

         if(packet.getHandlerScopePropertyNames(true).contains(key))

             return null;            // no such application-scope property

         Object value =  packet.invocationProperties.get(key);

         //add the attachments from the Message to the corresponding attachment property

         if(key.equals(MessageContext.INBOUND_MESSAGE_ATTACHMENTS)){

             Map<String, DataHandler> atts = (Map<String, DataHandler>) value;

             if(atts == null)

                 atts = new HashMap<String, DataHandler>();

             AttachmentSet attSet = packet.getMessage().getAttachments();

             for(Attachment att : attSet){

                 atts.put(att.getContentId(), att.asDataHandler());

             }

             return atts;

         }

         return value;

     }

     public Object put(String key, Object value) {

         // response context is read-only

         throw new UnsupportedOperationException();

     }

     public Object remove(Object key) {

         // response context is read-only

         throw new UnsupportedOperationException();

     }

     public void putAll(Map<? extends String, ? extends Object> t) {

         // response context is read-only

         throw new UnsupportedOperationException();

     }

     public void clear() {

         // response context is read-only

         throw new UnsupportedOperationException();

     }

     public Set<Entry<String, Object>> entrySet() {

         if(entrySet==null) {

             // this is where the worst case happens. we have to clone the whole properties

             // to get this view.

             // use TreeSet so that toString() sort them nicely. It's easier for apps.

             Map<String,Object> r = new HashMap<String,Object>();

             // export application-scope properties

             r.putAll(packet.invocationProperties);

             // hide handler-scope properties

             r.keySet().removeAll(packet.getHandlerScopePropertyNames(true));

             // and all strongly typed ones

             r.putAll(packet.createMapView());

             entrySet = Collections.unmodifiableSet(r.entrySet());

         }

         return entrySet;

     }

 }