| /* |
| * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
| */ |
| |
| package com.sun.xml.internal.fastinfoset.util; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import javax.xml.namespace.NamespaceContext; |
| |
| /** |
| * |
| * @author Paul.Sandoz@Sun.Com |
| */ |
| final public class NamespaceContextImplementation implements NamespaceContext { |
| private static int DEFAULT_SIZE = 8; |
| |
| private String[] prefixes = new String[DEFAULT_SIZE]; |
| private String[] namespaceURIs = new String[DEFAULT_SIZE]; |
| private int namespacePosition; |
| |
| private int[] contexts = new int[DEFAULT_SIZE]; |
| private int contextPosition; |
| |
| private int currentContext; |
| |
| public NamespaceContextImplementation() { |
| prefixes[0] = "xml"; |
| namespaceURIs[0] = "http://www.w3.org/XML/1998/namespace"; |
| prefixes[1] = "xmlns"; |
| namespaceURIs[1] = "http://www.w3.org/2000/xmlns/"; |
| |
| currentContext = namespacePosition = 2; |
| } |
| |
| |
| public String getNamespaceURI(String prefix) { |
| if (prefix == null) throw new IllegalArgumentException(); |
| |
| // prefix = prefix.intern(); |
| |
| for (int i = namespacePosition - 1; i >= 0; i--) { |
| final String declaredPrefix = prefixes[i]; |
| if (declaredPrefix.equals(prefix)) { |
| return namespaceURIs[i]; |
| } |
| } |
| |
| return ""; |
| } |
| |
| public String getPrefix(String namespaceURI) { |
| if (namespaceURI == null) throw new IllegalArgumentException(); |
| |
| // namespaceURI = namespaceURI.intern(); |
| |
| for (int i = namespacePosition - 1; i >= 0; i--) { |
| final String declaredNamespaceURI = namespaceURIs[i]; |
| if (declaredNamespaceURI.equals(namespaceURI)) { |
| final String declaredPrefix = prefixes[i]; |
| |
| // Check if prefix is out of scope |
| boolean isOutOfScope = false; |
| for (int j = i + 1; j < namespacePosition; j++) |
| if (declaredPrefix.equals(prefixes[j])) { |
| isOutOfScope = true; |
| break; |
| } |
| |
| if (!isOutOfScope) { |
| return declaredPrefix; |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| public String getNonDefaultPrefix(String namespaceURI) { |
| if (namespaceURI == null) throw new IllegalArgumentException(); |
| |
| // namespaceURI = namespaceURI.intern(); |
| |
| for (int i = namespacePosition - 1; i >= 0; i--) { |
| final String declaredNamespaceURI = namespaceURIs[i]; |
| if (declaredNamespaceURI.equals(namespaceURI) && |
| prefixes[i].length() > 0){ |
| final String declaredPrefix = prefixes[i]; |
| |
| // Check if prefix is out of scope |
| for (++i; i < namespacePosition; i++) |
| if (declaredPrefix.equals(prefixes[i])) |
| return null; |
| |
| return declaredPrefix; |
| } |
| } |
| |
| return null; |
| } |
| |
| public Iterator getPrefixes(String namespaceURI) { |
| if (namespaceURI == null) throw new IllegalArgumentException(); |
| |
| // namespaceURI = namespaceURI.intern(); |
| |
| List l = new ArrayList(); |
| |
| NAMESPACE_LOOP: for (int i = namespacePosition - 1; i >= 0; i--) { |
| final String declaredNamespaceURI = namespaceURIs[i]; |
| if (declaredNamespaceURI.equals(namespaceURI)) { |
| final String declaredPrefix = prefixes[i]; |
| |
| // Check if prefix is out of scope |
| for (int j = i + 1; j < namespacePosition; j++) |
| if (declaredPrefix.equals(prefixes[j])) |
| continue NAMESPACE_LOOP; |
| |
| l.add(declaredPrefix); |
| } |
| } |
| |
| return l.iterator(); |
| } |
| |
| |
| public String getPrefix(int index) { |
| return prefixes[index]; |
| } |
| |
| public String getNamespaceURI(int index) { |
| return namespaceURIs[index]; |
| } |
| |
| public int getCurrentContextStartIndex() { |
| return currentContext; |
| } |
| |
| public int getCurrentContextEndIndex() { |
| return namespacePosition; |
| } |
| |
| public boolean isCurrentContextEmpty() { |
| return currentContext == namespacePosition; |
| } |
| |
| public void declarePrefix(String prefix, String namespaceURI) { |
| prefix = prefix.intern(); |
| namespaceURI = namespaceURI.intern(); |
| |
| // Ignore the "xml" or "xmlns" declarations |
| if (prefix == "xml" || prefix == "xmlns") |
| return; |
| |
| // Replace any previous declaration |
| for (int i = currentContext; i < namespacePosition; i++) { |
| final String declaredPrefix = prefixes[i]; |
| if (declaredPrefix == prefix) { |
| prefixes[i] = prefix; |
| namespaceURIs[i] = namespaceURI; |
| return; |
| } |
| } |
| |
| if (namespacePosition == namespaceURIs.length) |
| resizeNamespaces(); |
| |
| // Add new declaration |
| prefixes[namespacePosition] = prefix; |
| namespaceURIs[namespacePosition++] = namespaceURI; |
| } |
| |
| private void resizeNamespaces() { |
| final int newLength = namespaceURIs.length * 3 / 2 + 1; |
| |
| String[] newPrefixes = new String[newLength]; |
| System.arraycopy(prefixes, 0, newPrefixes, 0, prefixes.length); |
| prefixes = newPrefixes; |
| |
| String[] newNamespaceURIs = new String[newLength]; |
| System.arraycopy(namespaceURIs, 0, newNamespaceURIs, 0, namespaceURIs.length); |
| namespaceURIs = newNamespaceURIs; |
| } |
| |
| public void pushContext() { |
| if (contextPosition == contexts.length) |
| resizeContexts(); |
| |
| contexts[contextPosition++] = currentContext = namespacePosition; |
| } |
| |
| private void resizeContexts() { |
| int[] newContexts = new int[contexts.length * 3 / 2 + 1]; |
| System.arraycopy(contexts, 0, newContexts, 0, contexts.length); |
| contexts = newContexts; |
| } |
| |
| public void popContext() { |
| if (contextPosition > 0) { |
| namespacePosition = currentContext = contexts[--contextPosition]; |
| } |
| } |
| |
| public void reset() { |
| currentContext = namespacePosition = 2; |
| } |
| } |