src/share/jaxws_classes/com/sun/xml/internal/ws/message/EmptyMessageImpl.java

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1 /*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.xml.internal.ws.message;
27
28 import com.sun.istack.internal.NotNull;
29 import com.sun.xml.internal.ws.api.SOAPVersion;
30 import com.sun.xml.internal.ws.api.message.AttachmentSet;
31 import com.sun.xml.internal.ws.api.message.HeaderList;
32 import com.sun.xml.internal.ws.api.message.Message;
33 import com.sun.xml.internal.ws.api.message.MessageHeaders;
34
35 import org.xml.sax.ContentHandler;
36 import org.xml.sax.ErrorHandler;
37 import org.xml.sax.SAXException;
38
39 import javax.xml.stream.XMLStreamException;
40 import javax.xml.stream.XMLStreamReader;
41 import javax.xml.stream.XMLStreamWriter;
42 import javax.xml.transform.Source;
43
44 /**
45 * {@link Message} that has no body.
46 *
47 * @author Kohsuke Kawaguchi
48 */
49 public class EmptyMessageImpl extends AbstractMessageImpl {
50
51 /**
52 * If a message has no payload, it's more likely to have
53 * some header, so we create it eagerly here.
54 */
55 private final MessageHeaders headers;
56 private final AttachmentSet attachmentSet;
57
58 public EmptyMessageImpl(SOAPVersion version) {
59 super(version);
60 this.headers = new HeaderList(version);
61 this.attachmentSet = new AttachmentSetImpl();
62 }
63
64 public EmptyMessageImpl(MessageHeaders headers, @NotNull AttachmentSet attachmentSet, SOAPVersion version){
65 super(version);
66 if(headers==null)
67 headers = new HeaderList(version);
68 this.attachmentSet = attachmentSet;
69 this.headers = headers;
70 }
71
72 /**
73 * Copy constructor.
74 */
75 private EmptyMessageImpl(EmptyMessageImpl that) {
76 super(that);
77 this.headers = new HeaderList(that.headers);
78 this.attachmentSet = that.attachmentSet;
79 }
80
81 public boolean hasHeaders() {
82 return headers.hasHeaders();
83 }
84
85 public MessageHeaders getHeaders() {
86 return headers;
87 }
88
89 public String getPayloadLocalPart() {
90 return null;
91 }
92
93 public String getPayloadNamespaceURI() {
94 return null;
95 }
96
97 public boolean hasPayload() {
98 return false;
99 }
100
101 public Source readPayloadAsSource() {
102 return null;
103 }
104
105 public XMLStreamReader readPayload() throws XMLStreamException {
106 return null;
107 }
108
109 public void writePayloadTo(XMLStreamWriter sw) throws XMLStreamException {
110 // noop
111 }
112
113 public void writePayloadTo(ContentHandler contentHandler, ErrorHandler errorHandler, boolean fragment) throws SAXException {
114 // noop
115 }
116
117 public Message copy() {
118 return new EmptyMessageImpl(this);
119 }
120
121 }

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