content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE 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 for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Copyright 2003-2005 The Apache Software Foundation.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package jaxp.sun.org.apache.xerces.internal.xinclude;
  
  import jaxp.sun.org.apache.xerces.internal.xni.NamespaceContext;
  
  /**
   * This is an implementation of NamespaceContext which is intended to be used for
   * XInclude processing.  It enables each context to be marked as invalid, if necessary,
   * to indicate that the namespaces recorded on those contexts won't be apparent in the
   * resulting infoset.
   *
   * @author Peter McCracken, IBM
   *
   */
  public class XIncludeNamespaceSupport extends MultipleScopeNamespaceSupport {
  
      /**
       * This stores whether or not the context at the matching depth was valid.
       */
      private boolean[] fValidContext = new boolean[8];
  
      /**
       *
       */
      public XIncludeNamespaceSupport() {
          super();
      }
  
      /**
       * @param context
       */
      public XIncludeNamespaceSupport(NamespaceContext context) {
          super(context);
      }
  
      /**
       * Pushes a new context onto the stack.
       */
      public void pushContext() {
          super.pushContext();
          if (fCurrentContext + 1 == fValidContext.length) {
              boolean[] contextarray = new boolean[fValidContext.length * 2];
              System.arraycopy(fValidContext, 0, contextarray, 0, fValidContext.length);
              fValidContext = contextarray;
          }
  
          fValidContext[fCurrentContext] = true;
      }
  
      /**
       * This method is used to set a context invalid for XInclude namespace processing.
       * Any context defined by an &lt;include&gt; or &lt;fallback&gt; element is not
       * valid for processing the include parent's [in-scope namespaces]. Thus, contexts
       * defined by these elements are set to invalid by the XInclude processor using
       * this method.
       */
      public void setContextInvalid() {
          fValidContext[fCurrentContext] = false;
      }
  
      /**
       * This returns the namespace URI which was associated with the given pretext, in
       * the context that existed at the include parent of the current element.  The
       * include parent is the last element, before the current one, which was not set
       * to an invalid context using setContextInvalid()
       *
       * @param prefix the prefix of the desired URI
       * @return the URI corresponding to the prefix in the context of the include parent
       */
      public String getURIFromIncludeParent(String prefix) {
          int lastValidContext = fCurrentContext - 1;
          while (lastValidContext > 0 && !fValidContext[lastValidContext]) {
              lastValidContext--;
          }
          return getURI(prefix, lastValidContext);
      }
  }
  