- /*
- * The Apache Software License, Version 1.1
- *
- *
- * Copyright (c) 1999 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xalan" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation and was
- * originally based on software copyright (c) 1999, Lotus
- * Development Corporation., http://www.lotus.com. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- package org.apache.xml.utils;
-
- /**
- * <meta name="usage" content="internal"/>
- * A very simple lookup table that stores a list of strings, the even
- * number strings being keys, and the odd number strings being values.
- */
- public class StringToStringTable
- {
-
- /** Size of blocks to allocate */
- private int m_blocksize;
-
- /** Array of strings this contains */
- private String m_map[];
-
- /** Number of strings this contains */
- private int m_firstFree = 0;
-
- /** Size of this table */
- private int m_mapSize;
-
- /**
- * Default constructor. Note that the default
- * block size is very small, for small lists.
- */
- public StringToStringTable()
- {
-
- m_blocksize = 16;
- m_mapSize = m_blocksize;
- m_map = new String[m_blocksize];
- }
-
- /**
- * Construct a StringToStringTable, using the given block size.
- *
- * @param blocksize Size of blocks to allocate
- */
- public StringToStringTable(int blocksize)
- {
-
- m_blocksize = blocksize;
- m_mapSize = blocksize;
- m_map = new String[blocksize];
- }
-
- /**
- * Get the length of the list.
- *
- * @return Number of strings in the list
- */
- public final int getLength()
- {
- return m_firstFree;
- }
-
- /**
- * Append a string onto the vector.
- * The strings go to the even locations in the array
- * and the values in the odd.
- *
- * @param key String to add to the list
- * @param value Value of the string
- */
- public final void put(String key, String value)
- {
-
- if ((m_firstFree + 2) >= m_mapSize)
- {
- m_mapSize += m_blocksize;
-
- String newMap[] = new String[m_mapSize];
-
- System.arraycopy(m_map, 0, newMap, 0, m_firstFree + 1);
-
- m_map = newMap;
- }
-
- m_map[m_firstFree] = key;
-
- m_firstFree++;
-
- m_map[m_firstFree] = value;
-
- m_firstFree++;
- }
-
- /**
- * Tell if the table contains the given string.
- *
- * @param key String to look up
- *
- * @return return the value of the string or null if not found.
- */
- public final String get(String key)
- {
-
- for (int i = 0; i < m_firstFree; i += 2)
- {
- if (m_map[i].equals(key))
- return m_map[i + 1];
- }
-
- return null;
- }
-
- /**
- * Remove the given string and its value from this table.
- *
- * @param key String to remove from the table
- */
- public final void remove(String key)
- {
-
- for (int i = 0; i < m_firstFree; i += 2)
- {
- if (m_map[i].equals(key))
- {
- if ((i + 2) < m_firstFree)
- System.arraycopy(m_map, i + 2, m_map, i, m_firstFree - (i + 2));
-
- m_firstFree -= 2;
- m_map[m_firstFree] = null;
- m_map[m_firstFree + 1] = null;
-
- break;
- }
- }
- }
-
- /**
- * Tell if the table contains the given string. Ignore case
- *
- * @param key String to look up
- *
- * @return The value of the string or null if not found
- */
- public final String getIgnoreCase(String key)
- {
-
- if (null == key)
- return null;
-
- for (int i = 0; i < m_firstFree; i += 2)
- {
- if (m_map[i].equalsIgnoreCase(key))
- return m_map[i + 1];
- }
-
- return null;
- }
-
- /**
- * Tell if the table contains the given string in the value.
- *
- * @param val Value of the string to look up
- *
- * @return the string associated with the given value or null if not found
- */
- public final String getByValue(String val)
- {
-
- for (int i = 1; i < m_firstFree; i += 2)
- {
- if (m_map[i].equals(val))
- return m_map[i - 1];
- }
-
- return null;
- }
-
- /**
- * Get the nth element.
- *
- * @param i index of the string to look up.
- *
- * @return The string at the given index.
- */
- public final String elementAt(int i)
- {
- return m_map[i];
- }
-
- /**
- * Tell if the table contains the given string.
- *
- * @param key String to look up
- *
- * @return True if the given string is in this table
- */
- public final boolean contains(String key)
- {
-
- for (int i = 0; i < m_firstFree; i += 2)
- {
- if (m_map[i].equals(key))
- return true;
- }
-
- return false;
- }
-
- /**
- * Tell if the table contains the given string.
- *
- * @param val value to look up
- *
- * @return True if the given value is in the table.
- */
- public final boolean containsValue(String val)
- {
-
- for (int i = 1; i < m_firstFree; i += 2)
- {
- if (m_map[i].equals(val))
- return true;
- }
-
- return false;
- }
- }