- /*
- * Copyright 1999-2004 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.
- */
- /*
- * $Id: StringToStringTableVector.java,v 1.5 2004/02/17 04:21:14 minchau Exp $
- */
- package com.sun.org.apache.xml.internal.utils;
-
- /**
- * A very simple table that stores a list of StringToStringTables, optimized
- * for small lists.
- * @xsl.usage internal
- */
- public class StringToStringTableVector
- {
-
- /** Size of blocks to allocate */
- private int m_blocksize;
-
- /** Array of StringToStringTable objects */
- private StringToStringTable m_map[];
-
- /** Number of StringToStringTable objects in this array */
- private int m_firstFree = 0;
-
- /** Size of this array */
- private int m_mapSize;
-
- /**
- * Default constructor. Note that the default
- * block size is very small, for small lists.
- */
- public StringToStringTableVector()
- {
-
- m_blocksize = 8;
- m_mapSize = m_blocksize;
- m_map = new StringToStringTable[m_blocksize];
- }
-
- /**
- * Construct a StringToStringTableVector, using the given block size.
- *
- * @param blocksize Size of blocks to allocate
- */
- public StringToStringTableVector(int blocksize)
- {
-
- m_blocksize = blocksize;
- m_mapSize = blocksize;
- m_map = new StringToStringTable[blocksize];
- }
-
- /**
- * Get the length of the list.
- *
- * @return Number of StringToStringTable objects in the list
- */
- public final int getLength()
- {
- return m_firstFree;
- }
-
- /**
- * Get the length of the list.
- *
- * @return Number of StringToStringTable objects in the list
- */
- public final int size()
- {
- return m_firstFree;
- }
-
- /**
- * Append a StringToStringTable object onto the vector.
- *
- * @param value StringToStringTable object to add
- */
- public final void addElement(StringToStringTable value)
- {
-
- if ((m_firstFree + 1) >= m_mapSize)
- {
- m_mapSize += m_blocksize;
-
- StringToStringTable newMap[] = new StringToStringTable[m_mapSize];
-
- System.arraycopy(m_map, 0, newMap, 0, m_firstFree + 1);
-
- m_map = newMap;
- }
-
- m_map[m_firstFree] = value;
-
- m_firstFree++;
- }
-
- /**
- * Given a string, find the last added occurance value
- * that matches the key.
- *
- * @param key String to look up
- *
- * @return the last added occurance value that matches the key
- * or null if not found.
- */
- public final String get(String key)
- {
-
- for (int i = m_firstFree - 1; i >= 0; --i)
- {
- String nsuri = m_map[i].get(key);
-
- if (nsuri != null)
- return nsuri;
- }
-
- return null;
- }
-
- /**
- * Given a string, find out if there is a value in this table
- * that matches the key.
- *
- * @param key String to look for
- *
- * @return True if the string was found in table, null if not
- */
- public final boolean containsKey(String key)
- {
-
- for (int i = m_firstFree - 1; i >= 0; --i)
- {
- if (m_map[i].get(key) != null)
- return true;
- }
-
- return false;
- }
-
- /**
- * Remove the last element.
- */
- public final void removeLastElem()
- {
-
- if (m_firstFree > 0)
- {
- m_map[m_firstFree] = null;
-
- m_firstFree--;
- }
- }
-
- /**
- * Get the nth element.
- *
- * @param i Index of element to find
- *
- * @return The StringToStringTable object at the given index
- */
- public final StringToStringTable elementAt(int i)
- {
- return m_map[i];
- }
-
- /**
- * Tell if the table contains the given StringToStringTable.
- *
- * @param s The StringToStringTable to find
- *
- * @return True if the StringToStringTable is found
- */
- public final boolean contains(StringToStringTable s)
- {
-
- for (int i = 0; i < m_firstFree; i++)
- {
- if (m_map[i].equals(s))
- return true;
- }
-
- return false;
- }
- }