cvs commit: xml-xerces/java/src/org/apache/xerces/util AttributesProxy.java

[mr...@apache.org]

mrglavas    2005/06/13 11:17:15

  Added:       java/src/org/apache/xerces/util AttributesProxy.java
  Log:
  Merging in AttributesProxy from the JAXP 1.3 RI and added Attributes2 methods.
  
  Revision  Changes    Path
  1.1                  xml-xerces/java/src/org/apache/xerces/util/AttributesProxy.java
  
  Index: AttributesProxy.java
  ===================================================================
  /*
   * Copyright 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 org.apache.xerces.util;
  
  import org.apache.xerces.impl.Constants;
  import org.apache.xerces.xni.XMLAttributes;
  import org.xml.sax.AttributeList;
  import org.xml.sax.Attributes;
  
  /**
   * Wraps {@link XMLAttributes} and makes it look like
   * {@link AttributeList} and {@link Attributes}.
   *
   * @author Arnaud Le Hors, IBM
   * @author Andy Clark, IBM
   *
   * @version $Id: AttributesProxy.java,v 1.1 2005/06/13 18:17:15 mrglavas Exp $
   */
  public final class AttributesProxy
      implements AttributeList, Attributes {
      
      //
      // Data
      //
  
      /** XML attributes. */
      private XMLAttributes fAttributes;
      
      //
      // Constructors
      //
      
      public AttributesProxy(XMLAttributes attributes) {
          fAttributes = attributes;
      }
  
      //
      // Public methods
      //
  
      /** Sets the XML attributes to be wrapped. */
      public void setAttributes(XMLAttributes attributes) {
          fAttributes = attributes;
      } // setAttributes(XMLAttributes)
      
      public XMLAttributes getAttributes() {
          return fAttributes;
      }
  
      /*
       * Attributes methods
       */
  
      public int getLength() {
          return fAttributes.getLength();
      }
  
      public String getQName(int index) {
          return fAttributes.getQName(index);
      }
  
      public String getURI(int index) {
          // This hides the fact that internally we use null instead of empty string
          // SAX requires the URI to be a string or an empty string
          String uri = fAttributes.getURI(index);
          return uri != null ? uri : XMLSymbols.EMPTY_STRING;
      }
  
      public String getLocalName(int index) {
          return fAttributes.getLocalName(index);
      }
  
      public String getType(int i) {
          return fAttributes.getType(i);
      }
  
      public String getType(String name) {
          return fAttributes.getType(name);
      }
  
      public String getType(String uri, String localName) {
          return uri.equals(XMLSymbols.EMPTY_STRING) ?
                  fAttributes.getType(null, localName) :
                      fAttributes.getType(uri, localName);
      }
  
      public String getValue(int i) {
          return fAttributes.getValue(i);
      }
  
      public String getValue(String name) {
          return fAttributes.getValue(name);
      }
  
      public String getValue(String uri, String localName) {
          return uri.equals(XMLSymbols.EMPTY_STRING) ? 
                  fAttributes.getValue(null, localName) :
                      fAttributes.getValue(uri, localName);
      }
  
      public int getIndex(String qName) {
          return fAttributes.getIndex(qName);
      }
  
      public int getIndex(String uri, String localPart) {
          return uri.equals(XMLSymbols.EMPTY_STRING) ? 
                  fAttributes.getIndex(null, localPart) :
                      fAttributes.getIndex(uri, localPart);
      }
      
      /*
       * Attributes2 methods
       */
      
      public boolean isDeclared(int index) {
          if (index < 0 || index >= fAttributes.getLength()) {
              throw new ArrayIndexOutOfBoundsException(index);
          }
          return Boolean.TRUE.equals(
              fAttributes.getAugmentations(index).getItem(
              Constants.ATTRIBUTE_DECLARED));
      }
      
      public boolean isDeclared(String qName) {
          int index = getIndex(qName);
          if (index == -1) {
              throw new IllegalArgumentException(qName);
          }
          return Boolean.TRUE.equals(
              fAttributes.getAugmentations(index).getItem(
              Constants.ATTRIBUTE_DECLARED));
      }
      
      public boolean isDeclared(String uri, String localName) {
          int index = getIndex(uri, localName);
          if (index == -1) {
              throw new IllegalArgumentException(localName);
          }
          return Boolean.TRUE.equals(
              fAttributes.getAugmentations(index).getItem(
              Constants.ATTRIBUTE_DECLARED));
      }
              
      public boolean isSpecified(int index) {
          if (index < 0 || index >= fAttributes.getLength()) {
              throw new ArrayIndexOutOfBoundsException(index);
          }
          return fAttributes.isSpecified(index);
      }
      
      public boolean isSpecified(String qName) {
          int index = getIndex(qName);
          if (index == -1) {
              throw new IllegalArgumentException(qName);
          }
          return fAttributes.isSpecified(index);
      }
      
      public boolean isSpecified(String uri, String localName) {
          int index = getIndex(uri, localName);
          if (index == -1) {
              throw new IllegalArgumentException(localName);
          }
          return fAttributes.isSpecified(index);
      }
      
      /*
       * AttributeList methods
       */
  
      public String getName(int i) {
          return fAttributes.getQName(i);
      }
  
  }
  
  

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