Wed, 27 Apr 2016 01:27:09 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2005, 2010, 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.txw2; |
aoqi@0 | 27 | |
aoqi@0 | 28 | import javax.xml.namespace.QName; |
aoqi@0 | 29 | |
aoqi@0 | 30 | |
aoqi@0 | 31 | /** |
aoqi@0 | 32 | * Start tag. |
aoqi@0 | 33 | * |
aoqi@0 | 34 | * <p> |
aoqi@0 | 35 | * This object implements {@link NamespaceResolver} for attribute values. |
aoqi@0 | 36 | * |
aoqi@0 | 37 | * @author Kohsuke Kawaguchi |
aoqi@0 | 38 | */ |
aoqi@0 | 39 | class StartTag extends Content implements NamespaceResolver { |
aoqi@0 | 40 | /** |
aoqi@0 | 41 | * Tag name of the element. |
aoqi@0 | 42 | * |
aoqi@0 | 43 | * <p> |
aoqi@0 | 44 | * This field is also used as a flag to indicate |
aoqi@0 | 45 | * whether the start tag has been written. |
aoqi@0 | 46 | * This field is initially set to non-null, and |
aoqi@0 | 47 | * then reset to null when it's written. |
aoqi@0 | 48 | */ |
aoqi@0 | 49 | private String uri; |
aoqi@0 | 50 | // but we keep the local name non-null so that |
aoqi@0 | 51 | // we can diagnose an error |
aoqi@0 | 52 | private final String localName; |
aoqi@0 | 53 | |
aoqi@0 | 54 | private Attribute firstAtt; |
aoqi@0 | 55 | private Attribute lastAtt; |
aoqi@0 | 56 | |
aoqi@0 | 57 | /** |
aoqi@0 | 58 | * If this {@link StartTag} has the parent {@link ContainerElement}, |
aoqi@0 | 59 | * that value. Otherwise null. |
aoqi@0 | 60 | */ |
aoqi@0 | 61 | private ContainerElement owner; |
aoqi@0 | 62 | |
aoqi@0 | 63 | /** |
aoqi@0 | 64 | * Explicitly given namespace declarations on this element. |
aoqi@0 | 65 | * |
aoqi@0 | 66 | * <p> |
aoqi@0 | 67 | * Additional namespace declarations might be necessary to |
aoqi@0 | 68 | * generate child {@link QName}s and attributes. |
aoqi@0 | 69 | */ |
aoqi@0 | 70 | private NamespaceDecl firstNs; |
aoqi@0 | 71 | private NamespaceDecl lastNs; |
aoqi@0 | 72 | |
aoqi@0 | 73 | final Document document; |
aoqi@0 | 74 | |
aoqi@0 | 75 | public StartTag(ContainerElement owner, String uri, String localName) { |
aoqi@0 | 76 | this(owner.document,uri,localName); |
aoqi@0 | 77 | this.owner = owner; |
aoqi@0 | 78 | } |
aoqi@0 | 79 | |
aoqi@0 | 80 | public StartTag(Document document, String uri, String localName) { |
aoqi@0 | 81 | assert uri!=null; |
aoqi@0 | 82 | assert localName!=null; |
aoqi@0 | 83 | |
aoqi@0 | 84 | this.uri = uri; |
aoqi@0 | 85 | this.localName = localName; |
aoqi@0 | 86 | this.document = document; |
aoqi@0 | 87 | |
aoqi@0 | 88 | // TODO: think about a better way to maintain namespace decls. |
aoqi@0 | 89 | // this requires at least one NamespaceDecl per start tag, |
aoqi@0 | 90 | // which is rather expensive. |
aoqi@0 | 91 | addNamespaceDecl(uri,null,false); |
aoqi@0 | 92 | } |
aoqi@0 | 93 | |
aoqi@0 | 94 | public void addAttribute(String nsUri, String localName, Object arg) { |
aoqi@0 | 95 | checkWritable(); |
aoqi@0 | 96 | |
aoqi@0 | 97 | // look for the existing ones |
aoqi@0 | 98 | Attribute a; |
aoqi@0 | 99 | for(a=firstAtt; a!=null; a=a.next) { |
aoqi@0 | 100 | if(a.hasName(nsUri,localName)) { |
aoqi@0 | 101 | break; |
aoqi@0 | 102 | } |
aoqi@0 | 103 | } |
aoqi@0 | 104 | |
aoqi@0 | 105 | // if not found, declare a new one |
aoqi@0 | 106 | if(a==null) { |
aoqi@0 | 107 | a = new Attribute(nsUri,localName); |
aoqi@0 | 108 | if(lastAtt==null) { |
aoqi@0 | 109 | assert firstAtt==null; |
aoqi@0 | 110 | firstAtt = lastAtt = a; |
aoqi@0 | 111 | } else { |
aoqi@0 | 112 | assert firstAtt!=null; |
aoqi@0 | 113 | lastAtt.next = a; |
aoqi@0 | 114 | lastAtt = a; |
aoqi@0 | 115 | } |
aoqi@0 | 116 | if(nsUri.length()>0) |
aoqi@0 | 117 | addNamespaceDecl(nsUri,null,true); |
aoqi@0 | 118 | } |
aoqi@0 | 119 | |
aoqi@0 | 120 | document.writeValue(arg,this,a.value); |
aoqi@0 | 121 | } |
aoqi@0 | 122 | |
aoqi@0 | 123 | /** |
aoqi@0 | 124 | * Declares a new namespace URI on this tag. |
aoqi@0 | 125 | * |
aoqi@0 | 126 | * @param uri |
aoqi@0 | 127 | * namespace URI to be bound. Can be empty, but must not be null. |
aoqi@0 | 128 | * @param prefix |
aoqi@0 | 129 | * If non-null and non-empty, this prefix is bound to the URI |
aoqi@0 | 130 | * on this element. If empty, then the runtime will still try to |
aoqi@0 | 131 | * use the URI as the default namespace, but it may fail to do so |
aoqi@0 | 132 | * because of the constraints in the XML. |
aoqi@0 | 133 | * <p> |
aoqi@0 | 134 | * If this parameter is null, the runtime will allocate an unique prefix. |
aoqi@0 | 135 | * @param requirePrefix |
aoqi@0 | 136 | * Used only when the prefix parameter is null. If true, this indicates |
aoqi@0 | 137 | * that the non-empty prefix must be assigned to this URI. If false, |
aoqi@0 | 138 | * then this URI might be used as the default namespace. |
aoqi@0 | 139 | * <p> |
aoqi@0 | 140 | * Normally you just need to set it to false. |
aoqi@0 | 141 | */ |
aoqi@0 | 142 | public NamespaceDecl addNamespaceDecl(String uri, String prefix,boolean requirePrefix) { |
aoqi@0 | 143 | checkWritable(); |
aoqi@0 | 144 | |
aoqi@0 | 145 | if(uri==null) |
aoqi@0 | 146 | throw new IllegalArgumentException(); |
aoqi@0 | 147 | if(uri.length()==0) { |
aoqi@0 | 148 | if(requirePrefix) |
aoqi@0 | 149 | throw new IllegalArgumentException("The empty namespace cannot have a non-empty prefix"); |
aoqi@0 | 150 | if(prefix!=null && prefix.length()>0) |
aoqi@0 | 151 | throw new IllegalArgumentException("The empty namespace can be only bound to the empty prefix"); |
aoqi@0 | 152 | prefix = ""; |
aoqi@0 | 153 | } |
aoqi@0 | 154 | |
aoqi@0 | 155 | // check for the duplicate |
aoqi@0 | 156 | for(NamespaceDecl n=firstNs; n!=null; n=n.next) { |
aoqi@0 | 157 | if(uri.equals(n.uri)) { |
aoqi@0 | 158 | if(prefix==null) { |
aoqi@0 | 159 | // reuse this binding |
aoqi@0 | 160 | n.requirePrefix |= requirePrefix; |
aoqi@0 | 161 | return n; |
aoqi@0 | 162 | } |
aoqi@0 | 163 | if(n.prefix==null) { |
aoqi@0 | 164 | // reuse this binding |
aoqi@0 | 165 | n.prefix = prefix; |
aoqi@0 | 166 | n.requirePrefix |= requirePrefix; |
aoqi@0 | 167 | return n; |
aoqi@0 | 168 | } |
aoqi@0 | 169 | if(prefix.equals(n.prefix)) { |
aoqi@0 | 170 | // reuse this binding |
aoqi@0 | 171 | n.requirePrefix |= requirePrefix; |
aoqi@0 | 172 | return n; |
aoqi@0 | 173 | } |
aoqi@0 | 174 | } |
aoqi@0 | 175 | if(prefix!=null && n.prefix!=null && n.prefix.equals(prefix)) |
aoqi@0 | 176 | throw new IllegalArgumentException( |
aoqi@0 | 177 | "Prefix '"+prefix+"' is already bound to '"+n.uri+'\''); |
aoqi@0 | 178 | } |
aoqi@0 | 179 | |
aoqi@0 | 180 | NamespaceDecl ns = new NamespaceDecl(document.assignNewId(),uri,prefix,requirePrefix); |
aoqi@0 | 181 | if(lastNs==null) { |
aoqi@0 | 182 | assert firstNs==null; |
aoqi@0 | 183 | firstNs = lastNs = ns; |
aoqi@0 | 184 | } else { |
aoqi@0 | 185 | assert firstNs!=null; |
aoqi@0 | 186 | lastNs.next = ns; |
aoqi@0 | 187 | lastNs = ns; |
aoqi@0 | 188 | } |
aoqi@0 | 189 | return ns; |
aoqi@0 | 190 | } |
aoqi@0 | 191 | |
aoqi@0 | 192 | /** |
aoqi@0 | 193 | * Throws an error if the start tag has already been committed. |
aoqi@0 | 194 | */ |
aoqi@0 | 195 | private void checkWritable() { |
aoqi@0 | 196 | if(isWritten()) |
aoqi@0 | 197 | throw new IllegalStateException( |
aoqi@0 | 198 | "The start tag of "+this.localName+" has already been written. " + |
aoqi@0 | 199 | "If you need out of order writing, see the TypedXmlWriter.block method"); |
aoqi@0 | 200 | } |
aoqi@0 | 201 | |
aoqi@0 | 202 | /** |
aoqi@0 | 203 | * Returns true if this start tag has already been written. |
aoqi@0 | 204 | */ |
aoqi@0 | 205 | boolean isWritten() { |
aoqi@0 | 206 | return uri==null; |
aoqi@0 | 207 | } |
aoqi@0 | 208 | |
aoqi@0 | 209 | /** |
aoqi@0 | 210 | * A {@link StartTag} can be only written after |
aoqi@0 | 211 | * we are sure that all the necessary namespace declarations are given. |
aoqi@0 | 212 | */ |
aoqi@0 | 213 | boolean isReadyToCommit() { |
aoqi@0 | 214 | if(owner!=null && owner.isBlocked()) |
aoqi@0 | 215 | return false; |
aoqi@0 | 216 | |
aoqi@0 | 217 | for( Content c=getNext(); c!=null; c=c.getNext() ) |
aoqi@0 | 218 | if(c.concludesPendingStartTag()) |
aoqi@0 | 219 | return true; |
aoqi@0 | 220 | |
aoqi@0 | 221 | return false; |
aoqi@0 | 222 | } |
aoqi@0 | 223 | |
aoqi@0 | 224 | public void written() { |
aoqi@0 | 225 | firstAtt = lastAtt = null; |
aoqi@0 | 226 | uri = null; |
aoqi@0 | 227 | if(owner!=null) { |
aoqi@0 | 228 | assert owner.startTag==this; |
aoqi@0 | 229 | owner.startTag = null; |
aoqi@0 | 230 | } |
aoqi@0 | 231 | } |
aoqi@0 | 232 | |
aoqi@0 | 233 | boolean concludesPendingStartTag() { |
aoqi@0 | 234 | return true; |
aoqi@0 | 235 | } |
aoqi@0 | 236 | |
aoqi@0 | 237 | void accept(ContentVisitor visitor) { |
aoqi@0 | 238 | visitor.onStartTag(uri,localName,firstAtt,firstNs); |
aoqi@0 | 239 | } |
aoqi@0 | 240 | |
aoqi@0 | 241 | public String getPrefix(String nsUri) { |
aoqi@0 | 242 | NamespaceDecl ns = addNamespaceDecl(nsUri,null,false); |
aoqi@0 | 243 | if(ns.prefix!=null) |
aoqi@0 | 244 | // if the prefix has already been declared, use it. |
aoqi@0 | 245 | return ns.prefix; |
aoqi@0 | 246 | return ns.dummyPrefix; |
aoqi@0 | 247 | } |
aoqi@0 | 248 | } |