19f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 29f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Licensed to the Apache Software Foundation (ASF) under one 39f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or more contributor license agreements. See the NOTICE file 49f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed with this work for additional information 59f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * regarding copyright ownership. The ASF licenses this file 69f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to you under the Apache License, Version 2.0 (the "License"); 79f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you may not use this file except in compliance with the License. 89f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * You may obtain a copy of the License at 99f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * http://www.apache.org/licenses/LICENSE-2.0 119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Unless required by applicable law or agreed to in writing, software 139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * distributed under the License is distributed on an "AS IS" BASIS, 149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * See the License for the specific language governing permissions and 169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * limitations under the License. 179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/* 199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * $Id: NamespaceSupport2.java 468655 2006-10-28 07:12:06Z minchau $ 209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpackage org.apache.xml.utils; 229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport java.util.EmptyStackException; 249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport java.util.Enumeration; 259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport java.util.Hashtable; 269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonimport java.util.Vector; 279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Encapsulate Namespace tracking logic for use by SAX drivers. 309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This class is an attempt to rewrite the SAX NamespaceSupport 329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * "helper" class for improved efficiency. It can be used to track the 339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * namespace declarations currently in scope, providing lookup 349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * routines to map prefixes to URIs and vice versa.</p> 359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>ISSUE: For testing purposes, I've extended NamespaceSupport even 379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * though I'm completely reasserting all behaviors and fields. 389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Wasteful.... But SAX did not put an interface under that object and 399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * we seem to have written that SAX class into our APIs... and I don't 409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * want to argue with it right now. </p> 419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport 439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * */ 449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonpublic class NamespaceSupport2 459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson extends org.xml.sax.helpers.NamespaceSupport 469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Internal state. 499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private Context2 currentContext; // Current point on the double-linked stack 529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Constants. 569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * The XML Namespace as a constant. 619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This is the Namespace URI that is automatically mapped 639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * to the "xml" prefix.</p> 649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public final static String XMLNS = 669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson "http://www.w3.org/XML/1998/namespace"; 679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Constructor. 719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Create a new Namespace support object. 769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public NamespaceSupport2 () 789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson reset(); 809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Context management. 859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Reset this Namespace support object for reuse. 909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>It is necessary to invoke this method before reusing the 929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Namespace support object for a new session.</p> 939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void reset () 959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Discarding the whole stack doesn't save us a lot versus 979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // creating a new NamespaceSupport. Do we care, or should we 989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // change this to just reset the root context? 999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext = new Context2(null); 1009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext.declarePrefix("xml", XMLNS); 1019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Start a new Namespace context. 1069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>Normally, you should push a new context at the beginning 1089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * of each XML element: the new context will automatically inherit 1099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the declarations of its parent context, but it will also keep 1109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * track of which declarations were made within this context.</p> 1119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>The Namespace support object always starts with a base context 1139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * already in force: in this context, only the "xml" prefix is 1149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * declared.</p> 1159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #popContext 1179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void pushContext () 1199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // JJK: Context has a parent pointer. 1219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // That means we don't need a stack to pop. 1229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // We may want to retain for reuse, but that can be done via 1239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // a child pointer. 1249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Context2 parentContext=currentContext; 1269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext = parentContext.getChild(); 1279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (currentContext == null){ 1289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext = new Context2(parentContext); 1299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else{ 1319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // JJK: This will wipe out any leftover data 1329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // if we're reusing a previously allocated Context. 1339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext.setParent(parentContext); 1349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Revert to the previous Namespace context. 1409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>Normally, you should pop the context at the end of each 1429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * XML element. After popping the context, all Namespace prefix 1439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * mappings that were previously in force are restored.</p> 1449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>You must not attempt to declare additional Namespace 1469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * prefixes after popping a context, unless you push another 1479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * context first.</p> 1489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #pushContext 1509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public void popContext () 1529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Context2 parentContext=currentContext.getParent(); 1549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(parentContext==null) 1559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new EmptyStackException(); 1569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else 1579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext = parentContext; 1589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 1599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 1639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Operations within a context. 1649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////////// 1659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 1679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 1689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Declare a Namespace prefix. 1699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This method declares a prefix in the current Namespace 1719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * context; the prefix will remain in force until this context 1729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is popped, unless it is shadowed in a descendant context.</p> 1739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>To declare a default Namespace, use the empty string. The 1759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * prefix must not be "xml" or "xmlns".</p> 1769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>Note that you must <em>not</em> declare a prefix after 1789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you've pushed and popped another Namespace.</p> 1799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>Note that there is an asymmetry in this library: while {@link 1819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * #getPrefix getPrefix} will not return the default "" prefix, 1829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * even if you have declared one; to check for a default prefix, 1839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * you have to look it up explicitly using {@link #getURI getURI}. 1849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * This asymmetry exists to make it easier to look up prefixes 1859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * for attribute names, where the default prefix is not allowed.</p> 1869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 1879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param prefix The prefix to declare, or null for the empty 1889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * string. 1899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri The Namespace URI to associate with the prefix. 1909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return true if the prefix was legal, false otherwise 1919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #processName 1929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getURI 1939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getPrefix 1949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 1959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean declarePrefix (String prefix, String uri) 1969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 1979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (prefix.equals("xml") || prefix.equals("xmlns")) { 1989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return false; 1999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 2009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson currentContext.declarePrefix(prefix, uri); 2019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return true; 2029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 2079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Process a raw XML 1.0 name. 2089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This method processes a raw XML 1.0 name in the current 2109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * context by removing the prefix and looking it up among the 2119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * prefixes currently declared. The return value will be the 2129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * array supplied by the caller, filled in as follows:</p> 2139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dl> 2159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dt>parts[0]</dt> 2169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dd>The Namespace URI, or an empty string if none is 2179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * in use.</dd> 2189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dt>parts[1]</dt> 2199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dd>The local name (without prefix).</dd> 2209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dt>parts[2]</dt> 2219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <dd>The original raw name.</dd> 2229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * </dl> 2239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>All of the strings in the array will be internalized. If 2259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the raw name has a prefix that has not been declared, then 2269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the return value will be null.</p> 2279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>Note that attribute names are processed differently than 2299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * element names: an unprefixed element name will received the 2309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * default Namespace (if any), while an unprefixed element name 2319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * will not.</p> 2329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param qName The raw XML 1.0 name to be processed. 2349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param parts A string array supplied by the caller, capable of 2359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * holding at least three members. 2369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param isAttribute A flag indicating whether this is an 2379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * attribute name (true) or an element name (false). 2389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The supplied array holding three internalized strings 2399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * representing the Namespace URI (or empty string), the 2409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * local name, and the raw XML 1.0 name; or null if there 2419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is an undeclared prefix. 2429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #declarePrefix 2439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see java.lang.String#intern */ 2449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String [] processName (String qName, String[] parts, 2459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson boolean isAttribute) 2469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String[] name=currentContext.processName(qName, isAttribute); 2489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(name==null) 2499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return null; 2509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // JJK: This recopying is required because processName may return 2529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // a cached result. I Don't Like It. ***** 2539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson System.arraycopy(name,0,parts,0,3); 2549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return parts; 2559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 2599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Look up a prefix and get the currently-mapped Namespace URI. 2609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This method looks up the prefix in the current context. 2629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Use the empty string ("") for the default Namespace.</p> 2639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param prefix The prefix to look up. 2659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The associated Namespace URI, or null if the prefix 2669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is undeclared in this context. 2679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getPrefix 2689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getPrefixes 2699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 2709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String getURI (String prefix) 2719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return currentContext.getURI(prefix); 2739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 2779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return an enumeration of all prefixes currently declared. 2789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p><strong>Note:</strong> if there is a default prefix, it will not be 2809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * returned in this enumeration; check for the default prefix 2819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * using the {@link #getURI getURI} with an argument of "".</p> 2829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return An enumeration of all prefixes declared in the 2849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * current context except for the empty (default) 2859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * prefix. 2869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getDeclaredPrefixes 2879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getURI 2889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 2899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Enumeration getPrefixes () 2909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 2919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return currentContext.getPrefixes(); 2929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 2939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 2959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 2969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return one of the prefixes mapped to a Namespace URI. 2979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 2989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>If more than one prefix is currently mapped to the same 2999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * URI, this method will make an arbitrary selection; if you 3009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * want all of the prefixes, use the {@link #getPrefixes} 3019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * method instead.</p> 3029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p><strong>Note:</strong> this will never return the empty 3049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * (default) prefix; to check for a default prefix, use the {@link 3059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * #getURI getURI} method with an argument of "".</p> 3069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri The Namespace URI. 3089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return One of the prefixes currently mapped to the URI supplied, 3099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * or null if none is mapped or if the URI is assigned to 3109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the default Namespace. 3119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getPrefixes(java.lang.String) 3129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getURI */ 3139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public String getPrefix (String uri) 3149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 3159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return currentContext.getPrefix(uri); 3169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 3179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 3209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return an enumeration of all prefixes currently declared for a URI. 3219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This method returns prefixes mapped to a specific Namespace 3239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * URI. The xml: prefix will be included. If you want only one 3249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * prefix that's mapped to the Namespace URI, and you don't care 3259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * which one you get, use the {@link #getPrefix getPrefix} 3269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * method instead.</p> 3279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p><strong>Note:</strong> the empty (default) prefix is 3299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <em>never</em> included in this enumeration; to check for the 3309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * presence of a default Namespace, use the {@link #getURI getURI} 3319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * method with an argument of "".</p> 3329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri The Namespace URI. 3349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return An enumeration of all prefixes declared in the 3359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * current context. 3369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getPrefix 3379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getDeclaredPrefixes 3389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getURI */ 3399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Enumeration getPrefixes (String uri) 3409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 3419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // JJK: The old code involved creating a vector, filling it 3429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // with all the matching prefixes, and then getting its 3439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // elements enumerator. Wastes storage, wastes cycles if we 3449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // don't actually need them all. Better to either implement 3459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // a specific enumerator for these prefixes... or a filter 3469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // around the all-prefixes enumerator, which comes out to 3479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // roughly the same thing. 3489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // 3499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // **** Currently a filter. That may not be most efficient 3509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // when I'm done restructuring storage! 3519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return new PrefixForUriEnumerator(this,uri,getPrefixes()); 3529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 3539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 3569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return an enumeration of all prefixes declared in this context. 3579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>The empty (default) prefix will be included in this 3599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * enumeration; note that this behaviour differs from that of 3609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * {@link #getPrefix} and {@link #getPrefixes}.</p> 3619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 3629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return An enumeration of all prefixes declared in this 3639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * context. 3649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getPrefixes 3659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see #getURI 3669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 3679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Enumeration getDeclaredPrefixes () 3689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 3699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return currentContext.getDeclaredPrefixes(); 3709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 3719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 3759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson//////////////////////////////////////////////////////////////////// 3779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// Local classes. 3789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// These were _internal_ classes... but in fact they don't have to be, 3799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// and may be more efficient if they aren't. 3809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson//////////////////////////////////////////////////////////////////// 3819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 3839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Implementation of Enumeration filter, wrapped 3849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * aroung the get-all-prefixes version of the operation. This is NOT 3859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * necessarily the most efficient approach; finding the URI and then asking 3869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * what prefixes apply to it might make much more sense. 3879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 3889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonclass PrefixForUriEnumerator implements Enumeration 3899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson{ 3909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private Enumeration allPrefixes; 3919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private String uri; 3929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private String lookahead=null; 3939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private NamespaceSupport2 nsup; 3949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 3959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Kluge: Since one can't do a constructor on an 3969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // anonymous class (as far as I know)... 3979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson PrefixForUriEnumerator(NamespaceSupport2 nsup,String uri, Enumeration allPrefixes) 3989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 3999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson this.nsup=nsup; 4009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson this.uri=uri; 4019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson this.allPrefixes=allPrefixes; 4029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public boolean hasMoreElements() 4059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(lookahead!=null) 4079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return true; 4089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson while(allPrefixes.hasMoreElements()) 4109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String prefix=(String)allPrefixes.nextElement(); 4129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(uri.equals(nsup.getURI(prefix))) 4139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson lookahead=prefix; 4159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return true; 4169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return false; 4199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson public Object nextElement() 4229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(hasMoreElements()) 4249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String tmp=lookahead; 4269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson lookahead=null; 4279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return tmp; 4289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else 4309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson throw new java.util.NoSuchElementException(); 4319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 4339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson/** 4359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Internal class for a single Namespace context. 4369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 4379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This module caches and reuses Namespace contexts, so the number allocated 4389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * will be equal to the element depth of the document, not to the total 4399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * number of elements (i.e. 5-10 rather than tens of thousands).</p> 4409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 4419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilsonfinal class Context2 { 4429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 4449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Manefest Constants 4459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 4469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 4489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * An empty enumeration. 4499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 4509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private final static Enumeration EMPTY_ENUMERATION = 4519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson new Vector().elements(); 4529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 4549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Protected state. 4559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 4569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Hashtable prefixTable; 4589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Hashtable uriTable; 4599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Hashtable elementNameTable; 4609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Hashtable attributeNameTable; 4619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String defaultNS = null; 4629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 4649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Internal state. 4659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 4669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private Vector declarations = null; 4689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private boolean tablesDirty = false; 4699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private Context2 parent = null; 4709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private Context2 child = null; 4719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 4739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Create a new Namespace context. 4749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 4759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Context2 (Context2 parent) 4769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(parent==null) 4789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson prefixTable = new Hashtable(); 4809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uriTable = new Hashtable(); 4819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elementNameTable=null; 4829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson attributeNameTable=null; 4839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else 4859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson setParent(parent); 4869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 4909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @returns The child Namespace context object, or null if this 4919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is the last currently on the chain. 4929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 4939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Context2 getChild() 4949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 4959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return child; 4969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 4979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 4989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 4999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @returns The parent Namespace context object, or null if this 5009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * is the root. 5019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 5029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Context2 getParent() 5039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 5049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return parent; 5059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 5089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * (Re)set the parent of this Namespace context. 5099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * This is separate from the c'tor because it's re-applied 5109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * when a Context2 is reused by push-after-pop. 5119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 5129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param context The parent Namespace context object. 5139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 5149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson void setParent (Context2 parent) 5159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 5169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson this.parent = parent; 5179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson parent.child = this; // JJK: Doubly-linked 5189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson declarations = null; 5199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson prefixTable = parent.prefixTable; 5209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uriTable = parent.uriTable; 5219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elementNameTable = parent.elementNameTable; 5229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson attributeNameTable = parent.attributeNameTable; 5239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson defaultNS = parent.defaultNS; 5249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson tablesDirty = false; 5259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 5299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Declare a Namespace prefix for this context. 5309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 5319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param prefix The prefix to declare. 5329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri The associated Namespace URI. 5339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport2#declarePrefix 5349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 5359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson void declarePrefix (String prefix, String uri) 5369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 5379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Lazy processing... 5389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (!tablesDirty) { 5399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson copyTables(); 5409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (declarations == null) { 5429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson declarations = new Vector(); 5439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson prefix = prefix.intern(); 5469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uri = uri.intern(); 5479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if ("".equals(prefix)) { 5489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if ("".equals(uri)) { 5499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson defaultNS = null; 5509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 5519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson defaultNS = uri; 5529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 5549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson prefixTable.put(prefix, uri); 5559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uriTable.put(uri, prefix); // may wipe out another prefix 5569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson declarations.addElement(prefix); 5589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 5629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Process a raw XML 1.0 name in this context. 5639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 5649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param qName The raw XML 1.0 name. 5659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param isAttribute true if this is an attribute name. 5669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return An array of three strings containing the 5679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * URI part (or empty string), the local part, 5689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * and the raw name, all internalized, or null 5699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * if there is an undeclared prefix. 5709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport2#processName 5719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 5729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String [] processName (String qName, boolean isAttribute) 5739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 5749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String name[]; 5759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Hashtable table; 5769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Select the appropriate table. 5789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (isAttribute) { 5799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(elementNameTable==null) 5809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elementNameTable=new Hashtable(); 5819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson table = elementNameTable; 5829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 5839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(attributeNameTable==null) 5849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson attributeNameTable=new Hashtable(); 5859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson table = attributeNameTable; 5869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Start by looking in the cache, and 5899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // return immediately if the name 5909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // is already known in this content 5919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name = (String[])table.get(qName); 5929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (name != null) { 5939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return name; 5949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 5959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 5969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // We haven't seen this name in this 5979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // context before. 5989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name = new String[3]; 5999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson int index = qName.indexOf(':'); 6009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // No prefix. 6039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (index == -1) { 6049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (isAttribute || defaultNS == null) { 6059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[0] = ""; 6069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 6079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[0] = defaultNS; 6089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[1] = qName.intern(); 6109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[2] = name[1]; 6119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Prefix 6149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson else { 6159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String prefix = qName.substring(0, index); 6169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String local = qName.substring(index+1); 6179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String uri; 6189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if ("".equals(prefix)) { 6199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uri = defaultNS; 6209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 6219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uri = (String)prefixTable.get(prefix); 6229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (uri == null) { 6249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return null; 6259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[0] = uri; 6279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[1] = local.intern(); 6289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson name[2] = qName.intern(); 6299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Save in the cache for future use. 6329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson table.put(name[2], name); 6339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson tablesDirty = true; 6349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return name; 6359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 6399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Look up the URI associated with a prefix in this context. 6409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 6419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param prefix The prefix to look up. 6429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The associated Namespace URI, or null if none is 6439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * declared. 6449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport2#getURI 6459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 6469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String getURI (String prefix) 6479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 6489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if ("".equals(prefix)) { 6499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return defaultNS; 6509f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else if (prefixTable == null) { 6519f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return null; 6529f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 6539f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return (String)prefixTable.get(prefix); 6549f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6559f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6569f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6579f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6589f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 6599f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Look up one of the prefixes associated with a URI in this context. 6609f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 6619f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>Since many prefixes may be mapped to the same URI, 6629f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the return value may be unreliable.</p> 6639f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 6649f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @param uri The URI to look up. 6659f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return The associated prefix, or null if none is declared. 6669f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport2#getPrefix 6679f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 6689f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson String getPrefix (String uri) 6699f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 6709f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (uriTable == null) { 6719f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return null; 6729f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 6739f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return (String)uriTable.get(uri); 6749f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6759f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6769f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6779f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6789f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 6799f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return an enumeration of prefixes declared in this context. 6809f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 6819f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return An enumeration of prefixes (possibly empty). 6829f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport2#getDeclaredPrefixes 6839f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 6849f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Enumeration getDeclaredPrefixes () 6859f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 6869f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (declarations == null) { 6879f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return EMPTY_ENUMERATION; 6889f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 6899f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return declarations.elements(); 6909f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6919f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 6929f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6939f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 6949f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 6959f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Return an enumeration of all prefixes currently in force. 6969f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 6979f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>The default prefix, if in force, is <em>not</em> 6989f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * returned, and will have to be checked for separately.</p> 6999f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 7009f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @return An enumeration of prefixes (never empty). 7019f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * @see org.xml.sax.helpers.NamespaceSupport2#getPrefixes 7029f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 7039f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson Enumeration getPrefixes () 7049f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 7059f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if (prefixTable == null) { 7069f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return EMPTY_ENUMERATION; 7079f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } else { 7089f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson return prefixTable.keys(); 7099f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 7109f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 7119f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 7129f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 7139f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Internal methods. 7149f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson //////////////////////////////////////////////////////////////// 7159f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 7169f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson /** 7179f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * Copy on write for the internal tables in this context. 7189f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 7199f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p>This class is optimized for the normal case where most 7209f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * elements do not contain Namespace declarations. In that case, 7219f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * the Context2 will share data structures with its parent. 7229f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * New tables are obtained only when new declarations are issued, 7239f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * so they can be popped off the stack.</p> 7249f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * 7259f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * <p> JJK: **** Alternative: each Context2 might declare 7269f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson * _only_ its local bindings, and delegate upward if not found.</p> 7279f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson */ 7289f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson private void copyTables () 7299f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson { 7309f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Start by copying our parent's bindings 7319f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson prefixTable = (Hashtable)prefixTable.clone(); 7329f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson uriTable = (Hashtable)uriTable.clone(); 7339f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 7349f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // Replace the caches with empty ones, rather than 7359f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // trying to determine which bindings should be flushed. 7369f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // As far as I can tell, these caches are never actually 7379f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // used in Xalan... More efficient to remove the whole 7389f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson // cache system? **** 7399f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(elementNameTable!=null) 7409f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson elementNameTable=new Hashtable(); 7419f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson if(attributeNameTable!=null) 7429f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson attributeNameTable=new Hashtable(); 7439f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson tablesDirty = true; 7449f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson } 7459f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 7469f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson} 7479f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 7489f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson 7499f8118474e9513f7a5b7d2a05e4a0fb15d1a6569Jesse Wilson// end of NamespaceSupport2.java 750