| /* |
| * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
| */ |
| |
| |
| package com.sun.xml.internal.fastinfoset.util; |
| |
| import com.sun.xml.internal.fastinfoset.CommonResourceBundle; |
| |
| public class CharArrayIntMap extends KeyIntMap { |
| |
| private CharArrayIntMap _readOnlyMap; |
| |
| // Total character count of Map |
| protected int _totalCharacterCount; |
| |
| static class Entry extends BaseEntry { |
| final char[] _ch; |
| final int _start; |
| final int _length; |
| Entry _next; |
| |
| public Entry(char[] ch, int start, int length, int hash, int value, Entry next) { |
| super(hash, value); |
| _ch = ch; |
| _start = start; |
| _length = length; |
| _next = next; |
| } |
| |
| public final boolean equalsCharArray(char[] ch, int start, int length) { |
| if (_length == length) { |
| int n = _length; |
| int i = _start; |
| int j = start; |
| while (n-- != 0) { |
| if (_ch[i++] != ch[j++]) |
| return false; |
| } |
| return true; |
| } |
| |
| return false; |
| } |
| |
| } |
| |
| private Entry[] _table; |
| |
| public CharArrayIntMap(int initialCapacity, float loadFactor) { |
| super(initialCapacity, loadFactor); |
| |
| _table = new Entry[_capacity]; |
| } |
| |
| public CharArrayIntMap(int initialCapacity) { |
| this(initialCapacity, DEFAULT_LOAD_FACTOR); |
| } |
| |
| public CharArrayIntMap() { |
| this(DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR); |
| } |
| |
| public final void clear() { |
| for (int i = 0; i < _table.length; i++) { |
| _table[i] = null; |
| } |
| _size = 0; |
| _totalCharacterCount = 0; |
| } |
| |
| public final void setReadOnlyMap(KeyIntMap readOnlyMap, boolean clear) { |
| if (!(readOnlyMap instanceof CharArrayIntMap)) { |
| throw new IllegalArgumentException(CommonResourceBundle.getInstance(). |
| getString("message.illegalClass", new Object[]{readOnlyMap})); |
| } |
| |
| setReadOnlyMap((CharArrayIntMap)readOnlyMap, clear); |
| } |
| |
| public final void setReadOnlyMap(CharArrayIntMap readOnlyMap, boolean clear) { |
| _readOnlyMap = readOnlyMap; |
| if (_readOnlyMap != null) { |
| _readOnlyMapSize = _readOnlyMap.size(); |
| |
| if (clear) { |
| clear(); |
| } |
| } else { |
| _readOnlyMapSize = 0; |
| } |
| } |
| |
| public final int obtainIndex(char[] ch, int start, int length, boolean clone) { |
| final int hash = hashHash(CharArray.hashCode(ch, start, length)); |
| |
| if (_readOnlyMap != null) { |
| final int index = _readOnlyMap.get(ch, start, length, hash); |
| if (index != -1) { |
| return index; |
| } |
| } |
| |
| final int tableIndex = indexFor(hash, _table.length); |
| for (Entry e = _table[tableIndex]; e != null; e = e._next) { |
| if (e._hash == hash && e.equalsCharArray(ch, start, length)) { |
| return e._value; |
| } |
| } |
| |
| if (clone) { |
| char[] chClone = new char[length]; |
| System.arraycopy(ch, start, chClone, 0, length); |
| |
| ch = chClone; |
| start = 0; |
| } |
| |
| addEntry(ch, start, length, hash, _size + _readOnlyMapSize, tableIndex); |
| return NOT_PRESENT; |
| } |
| |
| public final int getTotalCharacterCount() { |
| return _totalCharacterCount; |
| } |
| |
| private final int get(char[] ch, int start, int length, int hash) { |
| if (_readOnlyMap != null) { |
| final int i = _readOnlyMap.get(ch, start, length, hash); |
| if (i != -1) { |
| return i; |
| } |
| } |
| |
| final int tableIndex = indexFor(hash, _table.length); |
| for (Entry e = _table[tableIndex]; e != null; e = e._next) { |
| if (e._hash == hash && e.equalsCharArray(ch, start, length)) { |
| return e._value; |
| } |
| } |
| |
| return -1; |
| } |
| |
| private final void addEntry(char[] ch, int start, int length, int hash, int value, int bucketIndex) { |
| Entry e = _table[bucketIndex]; |
| _table[bucketIndex] = new Entry(ch, start, length, hash, value, e); |
| _totalCharacterCount += length; |
| if (_size++ >= _threshold) { |
| resize(2 * _table.length); |
| } |
| } |
| |
| private final void resize(int newCapacity) { |
| _capacity = newCapacity; |
| Entry[] oldTable = _table; |
| int oldCapacity = oldTable.length; |
| if (oldCapacity == MAXIMUM_CAPACITY) { |
| _threshold = Integer.MAX_VALUE; |
| return; |
| } |
| |
| Entry[] newTable = new Entry[_capacity]; |
| transfer(newTable); |
| _table = newTable; |
| _threshold = (int)(_capacity * _loadFactor); |
| } |
| |
| private final void transfer(Entry[] newTable) { |
| Entry[] src = _table; |
| int newCapacity = newTable.length; |
| for (int j = 0; j < src.length; j++) { |
| Entry e = src[j]; |
| if (e != null) { |
| src[j] = null; |
| do { |
| Entry next = e._next; |
| int i = indexFor(e._hash, newCapacity); |
| e._next = newTable[i]; |
| newTable[i] = e; |
| e = next; |
| } while (e != null); |
| } |
| } |
| } |
| } |