JDK14/Java14源码在线阅读

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
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package com.sun.org.apache.xml.internal.utils;

import java.io.Serializable;

import org.xml.sax.Attributes;
import org.xml.sax.helpers.AttributesImpl;

/**
 * Mutable version of AttributesImpl.
 * @xsl.usage advanced
 */
public class MutableAttrListImpl extends AttributesImpl
        implements Serializable
{
    static final long serialVersionUID = 6289452013442934470L;

/**
 * Construct a new, empty AttributesImpl object.
 */

public MutableAttrListImpl()
  {
    super();
  }

  /**
   * Copy an existing Attributes object.
   *
   * <p>This constructor is especially useful inside a start
   * element event.</p>
   *
   * @param atts The existing Attributes object.
   */
  public MutableAttrListImpl(Attributes atts)
  {
    super(atts);
  }

  /**
   * Add an attribute to the end of the list.
   *
   * <p>For the sake of speed, this method does no checking
   * to see if the attribute is already in the list: that is
   * the responsibility of the application.</p>
   *
   * @param uri The Namespace URI, or the empty string if
   *        none is available or Namespace processing is not
   *        being performed.
   * @param localName The local name, or the empty string if
   *        Namespace processing is not being performed.
   * @param qName The qualified (prefixed) name, or the empty string
   *        if qualified names are not available.
   * @param type The attribute type as a string.
   * @param value The attribute value.
   */
  public void addAttribute(String uri, String localName, String qName,
                           String type, String value)
  {

    if (null == uri)
      uri = "";

    // getIndex(qName) seems to be more reliable than getIndex(uri, localName),
    // in the case of the xmlns attribute anyway.
    int index = this.getIndex(qName);
    // int index = this.getIndex(uri, localName);

    // System.out.println("MutableAttrListImpl#addAttribute: "+uri+":"+localName+", "+index+", "+qName+", "+this);

    if (index >= 0)
      this.setAttribute(index, uri, localName, qName, type, value);
    else
      super.addAttribute(uri, localName, qName, type, value);
  }

  /**
   * Add the contents of the attribute list to this list.
   *
   * @param atts List of attributes to add to this list
   */
  public void addAttributes(Attributes atts)
  {

    int nAtts = atts.getLength();

    for (int i = 0; i < nAtts; i++)
    {
      String uri = atts.getURI(i);

      if (null == uri)
        uri = "";

      String localName = atts.getLocalName(i);
      String qname = atts.getQName(i);
      int index = this.getIndex(uri, localName);
      // System.out.println("MutableAttrListImpl#addAttributes: "+uri+":"+localName+", "+index+", "+atts.getQName(i)+", "+this);
      if (index >= 0)
        this.setAttribute(index, uri, localName, qname, atts.getType(i),
                          atts.getValue(i));
      else

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