1 /* 2 * Copyright (c) 1997, 2014, 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 this.copyFrom(that); 80 } 81 82 public boolean hasHeaders() { 83 return headers.hasHeaders(); 84 } 85 86 public MessageHeaders getHeaders() { 87 return headers; 88 } 89 90 public String getPayloadLocalPart() { 91 return null; 92 } 93 94 public String getPayloadNamespaceURI() { 95 return null; 96 } 97 98 public boolean hasPayload() { 99 return false; 100 } 101 102 public Source readPayloadAsSource() { 103 return null; 104 } 105 106 public XMLStreamReader readPayload() throws XMLStreamException { 107 return null; 108 } 109 110 public void writePayloadTo(XMLStreamWriter sw) throws XMLStreamException { 111 // noop 112 } 113 114 public void writePayloadTo(ContentHandler contentHandler, ErrorHandler errorHandler, boolean fragment) throws SAXException { 115 // noop 116 } 117 118 public Message copy() { 119 return new EmptyMessageImpl(this).copyFrom(this); 120 } 121 122 }