01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common Development
08: * and Distribution License("CDDL") (collectively, the "License"). You
09: * may not use this file except in compliance with the License. You can obtain
10: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12: * language governing permissions and limitations under the License.
13: *
14: * When distributing the software, include this License Header Notice in each
15: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16: * Sun designates this particular file as subject to the "Classpath" exception
17: * as provided by Sun in the GPL Version 2 section of the License file that
18: * accompanied this code. If applicable, add the following below the License
19: * Header, with the fields enclosed by brackets [] replaced by your own
20: * identifying information: "Portions Copyrighted [year]
21: * [name of copyright owner]"
22: *
23: * Contributor(s):
24: *
25: * If you wish your version of this file to be governed by only the CDDL or
26: * only the GPL Version 2, indicate your decision by adding "[Contributor]
27: * elects to include this software in this distribution under the [CDDL or GPL
28: * Version 2] license." If you don't indicate a single choice of license, a
29: * recipient has the option to distribute your version of this file under
30: * either the CDDL, the GPL Version 2 or to extend the choice of license to
31: * its licensees as provided above. However, if you add GPL Version 2 code
32: * and therefore, elected the GPL Version 2 license, then the option applies
33: * only if the new code is made subject to such option by the copyright
34: * holder.
35: */
36:
37: package com.sun.xml.ws.server;
38:
39: import com.sun.istack.NotNull;
40: import com.sun.xml.ws.api.message.Packet;
41: import com.sun.xml.ws.api.server.InstanceResolver;
42: import com.sun.xml.ws.api.server.WSEndpoint;
43: import com.sun.xml.ws.api.server.WSWebServiceContext;
44:
45: import javax.annotation.PostConstruct;
46: import javax.annotation.PreDestroy;
47:
48: /**
49: * {@link InstanceResolver} that always returns a single instance.
50: *
51: * @author Kohsuke Kawaguchi
52: */
53: public final class SingletonResolver<T> extends
54: AbstractInstanceResolver<T> {
55: private final @NotNull
56: T singleton;
57:
58: public SingletonResolver(@NotNull
59: T singleton) {
60: this .singleton = singleton;
61: }
62:
63: public @NotNull
64: T resolve(Packet request) {
65: return singleton;
66: }
67:
68: public void start(WSWebServiceContext wsc, WSEndpoint endpoint) {
69: getResourceInjector(endpoint).inject(wsc, singleton);
70: // notify that we are ready to serve
71: invokeMethod(findAnnotatedMethod(singleton.getClass(),
72: PostConstruct.class), singleton);
73: }
74:
75: public void dispose() {
76: invokeMethod(findAnnotatedMethod(singleton.getClass(),
77: PreDestroy.class), singleton);
78: }
79: }
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