jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/api/server/Adapter.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/api/server/Adapter.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/api/server/Adapter.java

Thu, 31 Aug 2017 15:18:52 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:18:52 +0800
changeset 637: 9c07ef4934dd
parent 368: 0989ad8c0860
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2012, 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
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package com.sun.xml.internal.ws.api.server;
 import com.sun.xml.internal.ws.api.config.management.Reconfigurable;
 import com.sun.xml.internal.ws.api.Component;
 import com.sun.xml.internal.ws.api.pipe.Codec;
 import com.sun.xml.internal.ws.api.message.Packet;
 import com.sun.xml.internal.ws.api.server.WSEndpoint.PipeHead;
 import com.sun.xml.internal.ws.util.Pool;
 /**
  * Receives incoming messages from a transport (such as HTTP, JMS, etc)
  * in a transport specific way, and delivers it to {@link WSEndpoint.PipeHead#process}.
  *
  * <p>
  * Since this class mostly concerns itself with converting a
  * transport-specific message representation to a {@link Packet},
  * the name is the "adapter".
  *
  * <p>
  * The purpose of this class is twofolds:
  *
  * <ol>
  * <li>
  * To hide the logic of converting a transport-specific connection
  * to a {@link Packet} and do the other way around.
  *
  * <li>
  * To manage thread-unsafe resources, such as {@link WSEndpoint.PipeHead},
  * and {@link Codec}.
  * </ol>
  *
  * <p>
  * {@link Adapter}s are extended to work with each kind of transport,
  * and therefore {@link Adapter} class itself is not all that
  * useful by itself --- it merely provides a design template
  * that can be followed.
  *
  * <p>
  * For managing resources, an adapter uses an object called {@link Toolkit}
  * (think of it as a tray full of tools that a dentist uses ---
  * trays are identical, but each patient has to get one. You have
  * a pool of them and you assign it to a patient.)
  *
  * {@link Adapter.Toolkit} can be extended by derived classes.
  * That actual type is the {@code TK} type parameter this class takes.
  *
  * @author Kohsuke Kawaguchi
  */
 public abstract class Adapter<TK extends Adapter.Toolkit>
         implements Reconfigurable, Component {
     protected final WSEndpoint<?> endpoint;
     /**
      * Object that groups all thread-unsafe resources.
      */
     public class Toolkit {
         /**
          * For encoding/decoding infoset to/from the byte stream.
          */
         public final Codec codec;
         /**
          * This object from {@link WSEndpoint} serves the request.
          */
         public final PipeHead head;
         public Toolkit() {
             this.codec = endpoint.createCodec();
             this.head = endpoint.createPipeHead();
         }
     }
     /**
      * Pool of {@link Toolkit}s.
      *
      * Instances of this pool may be replaced at runtime. Therefore, when you take
      * an object out of the pool, you must make sure that it is recycled by the
      * same instance of the pool.
      */
     protected volatile Pool<TK> pool = new Pool<TK>() {
         protected TK create() {
             return createToolkit();
         }
     };
     /**
      * Creates an {@link Adapter} that delivers
      * messages to the given endpoint.
      */
     protected Adapter(WSEndpoint endpoint) {
         assert endpoint!=null;
         this.endpoint = endpoint;
         // Enables other components to reconfigure this adapter
         endpoint.getComponents().add(getEndpointComponent());
     }
     protected Component getEndpointComponent() {
         return new Component() {
                         public <S> S getSPI(Class<S> spiType) {
                         if (spiType.isAssignableFrom(Reconfigurable.class)) {
                             return spiType.cast(Adapter.this);
                         }
                                 return null;
                         }
         };
     }
     /**
      * The pool instance needs to be recreated to prevent reuse of old Toolkit instances.
      */
     public void reconfigure() {
         this.pool = new Pool<TK>() {
             protected TK create() {
                 return createToolkit();
             }
         };
     }
     public <S> S getSPI(Class<S> spiType) {
         if (spiType.isAssignableFrom(Reconfigurable.class)) {
             return spiType.cast(this);
         }
         if (endpoint != null) {
                 return endpoint.getSPI(spiType);
         }
         return null;
     }
     /**
      * Gets the endpoint that this {@link Adapter} is serving.
      *
      * @return
      *      always non-null.
      */
     public WSEndpoint<?> getEndpoint() {
         return endpoint;
     }
     /**
      * Returns a reference to the pool of Toolkits for this adapter.
      *
      * The pool may be recreated during runtime reconfiguration and this method
      * will then return a reference to a new instance. When you recycle a toolkit,
      * you must make sure that you return it to the same pool instance that you
      * took it from.
      *
      * @return
      */
     protected Pool<TK> getPool() {
         return pool;
     }
     /**
      * Creates a {@link Toolkit} instance.
      *
      * <p>
      * If the derived class doesn't have to add any per-thread state
      * to {@link Toolkit}, simply implement this as {@code new Toolkit()}.
      */
     protected abstract TK createToolkit();
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/ws/api/server/Adapter.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/ws/api/server/Adapter.java