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

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

author
aoqi
date
Thu, 31 Aug 2017 15:18:52 +0800
changeset 637
9c07ef4934dd
parent 397
b99d7e355d4b
parent 0
373ffda63c9a
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.xml.internal.ws.api.server;
aoqi@0 27
aoqi@0 28 import java.util.concurrent.Executor;
aoqi@0 29
aoqi@0 30 /**
aoqi@0 31 * ContainerResolver based on {@link ThreadLocal}.
aoqi@0 32 * <p>
aoqi@0 33 * The ThreadLocalContainerResolver is the default implementation available
aoqi@0 34 * from the ContainerResolver using {@link ContainerResolver#getDefault()}. Code
aoqi@0 35 * sections that run with a Container must use the following pattern:
aoqi@0 36 * <pre>
aoqi@0 37 * public void m() {
aoqi@0 38 * Container old = ContainerResolver.getDefault().enterContainer(myContainer);
aoqi@0 39 * try {
aoqi@0 40 * // ... method body
aoqi@0 41 * } finally {
aoqi@0 42 * ContainerResolver.getDefault().exitContainer(old);
aoqi@0 43 * }
aoqi@0 44 * }
aoqi@0 45 * </pre>
aoqi@0 46 * @since 2.2.7
aoqi@0 47 */
aoqi@0 48 public class ThreadLocalContainerResolver extends ContainerResolver {
aoqi@0 49 private ThreadLocal<Container> containerThreadLocal = new ThreadLocal<Container>() {
aoqi@0 50 @Override
aoqi@0 51 protected Container initialValue() {
aoqi@0 52 return Container.NONE;
aoqi@0 53 }
aoqi@0 54 };
aoqi@0 55
aoqi@0 56 public Container getContainer() {
aoqi@0 57 return containerThreadLocal.get();
aoqi@0 58 }
aoqi@0 59
aoqi@0 60 /**
aoqi@0 61 * Enters container
aoqi@0 62 * @param container Container to set
aoqi@0 63 * @return Previous container; must be remembered and passed to exitContainer
aoqi@0 64 */
aoqi@0 65 public Container enterContainer(Container container) {
aoqi@0 66 Container old = containerThreadLocal.get();
aoqi@0 67 containerThreadLocal.set(container);
aoqi@0 68 return old;
aoqi@0 69 }
aoqi@0 70
aoqi@0 71 /**
aoqi@0 72 * Exits container
aoqi@0 73 * @param old Container returned from enterContainer
aoqi@0 74 */
aoqi@0 75 public void exitContainer(Container old) {
aoqi@0 76 containerThreadLocal.set(old);
aoqi@0 77 }
aoqi@0 78
aoqi@0 79 /**
aoqi@0 80 * Used by {@link com.sun.xml.internal.ws.api.pipe.Engine} to wrap asynchronous {@link com.sun.xml.internal.ws.api.pipe.Fiber} executions
aoqi@0 81 * @param container Container
aoqi@0 82 * @param ex Executor to wrap
aoqi@0 83 * @return an Executor that will set the container during executions of Runnables
aoqi@0 84 */
aoqi@0 85 public Executor wrapExecutor(final Container container, final Executor ex) {
aoqi@0 86 if (ex == null)
aoqi@0 87 return null;
aoqi@0 88
aoqi@0 89 return new Executor() {
aoqi@0 90 @Override
aoqi@0 91 public void execute(final Runnable command) {
aoqi@0 92 ex.execute(new Runnable() {
aoqi@0 93 @Override
aoqi@0 94 public void run() {
aoqi@0 95 Container old = enterContainer(container);
aoqi@0 96 try {
aoqi@0 97 command.run();
aoqi@0 98 } finally {
aoqi@0 99 exitContainer(old);
aoqi@0 100 }
aoqi@0 101 }
aoqi@0 102 });
aoqi@0 103 }
aoqi@0 104 };
aoqi@0 105 }
aoqi@0 106 }

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