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Java example source code file (InstanceResolver.java)
The InstanceResolver.java Java example source code/* * Copyright (c) 1997, 2013, 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.istack.internal.NotNull; import com.sun.xml.internal.ws.api.message.Message; import com.sun.xml.internal.ws.api.message.Packet; import com.sun.xml.internal.ws.resources.ServerMessages; import com.sun.xml.internal.ws.resources.WsservletMessages; import com.sun.xml.internal.ws.server.ServerRtException; import com.sun.xml.internal.ws.server.SingletonResolver; import javax.xml.ws.Provider; import javax.xml.ws.WebServiceContext; import javax.xml.ws.WebServiceException; import java.lang.annotation.Annotation; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.util.logging.Level; import java.util.logging.Logger; /** * Determines the instance that serves * the given request packet. * * <p> * The JAX-WS spec always use a singleton instance * to serve all the requests, but this hook provides * a convenient way to route messages to a proper receiver. * * <p> * Externally, an instance of {@link InstanceResolver} is * associated with {@link WSEndpoint}. * * <h2>Possible Uses * <p> * One can use WS-Addressing message properties to * decide which instance to deliver a message. This * would be an important building block for a stateful * web services. * * <p> * One can associate an instance of a service * with a specific WS-RM session. * * @author Kohsuke Kawaguchi */ public abstract class InstanceResolver<T> { /** * Decides which instance of 'T' serves the given request message. * * <p> * This method is called concurrently by multiple threads. * It is also on a criticail path that affects the performance. * A good implementation should try to avoid any synchronization, * and should minimize the amount of work as much as possible. * * @param request * Always non-null. Represents the request message to be served. * The caller may not consume the {@link Message}. */ public abstract @NotNull T resolve(@NotNull Packet request); /** * Called by the default {@link Invoker} after the method call is done. * This gives {@link InstanceResolver} a chance to do clean up. * * <p> * Alternatively, one could override {@link #createInvoker()} to * create a custom invoker to do this in more flexible way. * * <p> * The default implementation is a no-op. * * @param request * The same request packet given to {@link #resolve(Packet)} method. * @param servant * The object returned from the {@link #resolve(Packet)} method. * @since 2.1.2 */ public void postInvoke(@NotNull Packet request, @NotNull T servant) { } /** * Called by {@link WSEndpoint} when it's set up. * * <p> * This is an opportunity for {@link InstanceResolver} * to do a endpoint-specific initialization process. * * @param wsc * The {@link WebServiceContext} instance to be injected * to the user instances (assuming {@link InstanceResolver} */ public void start(@NotNull WSWebServiceContext wsc, @NotNull WSEndpoint endpoint) { // backward compatibility start(wsc); } /** * @deprecated * Use {@link #start(WSWebServiceContext,WSEndpoint)}. */ public void start(@NotNull WebServiceContext wsc) {} /** * Called by {@link WSEndpoint} * when {@link WSEndpoint#dispose()} is called. * * This allows {@link InstanceResolver} to do final clean up. * * <p> * This method is guaranteed to be only called once by {@link WSEndpoint}. */ public void dispose() {} /** * Creates a {@link InstanceResolver} implementation that always * returns the specified singleton instance. */ public static <T> InstanceResolver Other Java examples (source code examples)Here is a short list of links related to this Java InstanceResolver.java source code file: |
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