author | mkos |
Sun, 30 Dec 2012 00:00:00 +0100 | |
changeset 22678 | ac1ea46be942 |
parent 12009 | 4abb694f273a |
permissions | -rw-r--r-- |
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/* |
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ac1ea46be942
8029237: Update copyright year to match last edit in jaxws repository for 2012
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parents:
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changeset
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* Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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* THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
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*/ |
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package com.sun.xml.internal.fastinfoset.util; |
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import com.sun.xml.internal.fastinfoset.CommonResourceBundle; |
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public class CharArrayIntMap extends KeyIntMap { |
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private CharArrayIntMap _readOnlyMap; |
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// Total character count of Map |
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protected int _totalCharacterCount; |
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static class Entry extends BaseEntry { |
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final char[] _ch; |
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final int _start; |
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final int _length; |
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Entry _next; |
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public Entry(char[] ch, int start, int length, int hash, int value, Entry next) { |
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super(hash, value); |
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_ch = ch; |
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_start = start; |
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_length = length; |
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_next = next; |
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} |
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public final boolean equalsCharArray(char[] ch, int start, int length) { |
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if (_length == length) { |
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int n = _length; |
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int i = _start; |
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int j = start; |
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while (n-- != 0) { |
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if (_ch[i++] != ch[j++]) |
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return false; |
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} |
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return true; |
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} |
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return false; |
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} |
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} |
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private Entry[] _table; |
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public CharArrayIntMap(int initialCapacity, float loadFactor) { |
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super(initialCapacity, loadFactor); |
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_table = new Entry[_capacity]; |
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} |
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public CharArrayIntMap(int initialCapacity) { |
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this(initialCapacity, DEFAULT_LOAD_FACTOR); |
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} |
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public CharArrayIntMap() { |
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this(DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR); |
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} |
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public final void clear() { |
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for (int i = 0; i < _table.length; i++) { |
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_table[i] = null; |
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} |
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_size = 0; |
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_totalCharacterCount = 0; |
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} |
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public final void setReadOnlyMap(KeyIntMap readOnlyMap, boolean clear) { |
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if (!(readOnlyMap instanceof CharArrayIntMap)) { |
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throw new IllegalArgumentException(CommonResourceBundle.getInstance(). |
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getString("message.illegalClass", new Object[]{readOnlyMap})); |
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} |
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setReadOnlyMap((CharArrayIntMap)readOnlyMap, clear); |
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} |
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public final void setReadOnlyMap(CharArrayIntMap readOnlyMap, boolean clear) { |
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_readOnlyMap = readOnlyMap; |
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if (_readOnlyMap != null) { |
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_readOnlyMapSize = _readOnlyMap.size(); |
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if (clear) { |
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clear(); |
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} |
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} else { |
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_readOnlyMapSize = 0; |
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} |
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} |
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/** |
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* Method returns an index of the passed character buffer in |
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* <code>CharArrayIntMap</code>. |
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* |
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* @return index of character buffer in <code>CharArrayIntMap</code>, |
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* otherwise NOT_PRESENT. |
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*/ |
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public final int get(char[] ch, int start, int length) { |
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final int hash = hashHash(CharArray.hashCode(ch, start, length)); |
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return get(ch, start, length, hash); |
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} |
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/** |
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* Method returns an index of the passed character buffer in |
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* <code>CharArrayIntMap</code>. If character buffer is not in |
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* <code>CharArrayIntMap</code> - it will be added. |
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* |
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* @return index of character buffer in <code>CharArrayIntMap</code>, or |
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* NOT_PRESENT if character buffer was just added. |
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*/ |
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public final int obtainIndex(char[] ch, int start, int length, boolean clone) { |
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final int hash = hashHash(CharArray.hashCode(ch, start, length)); |
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if (_readOnlyMap != null) { |
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final int index = _readOnlyMap.get(ch, start, length, hash); |
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if (index != -1) { |
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return index; |
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} |
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} |
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final int tableIndex = indexFor(hash, _table.length); |
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for (Entry e = _table[tableIndex]; e != null; e = e._next) { |
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if (e._hash == hash && e.equalsCharArray(ch, start, length)) { |
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return e._value; |
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} |
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} |
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if (clone) { |
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char[] chClone = new char[length]; |
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System.arraycopy(ch, start, chClone, 0, length); |
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ch = chClone; |
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start = 0; |
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} |
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addEntry(ch, start, length, hash, _size + _readOnlyMapSize, tableIndex); |
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return NOT_PRESENT; |
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} |
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public final int getTotalCharacterCount() { |
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return _totalCharacterCount; |
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} |
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private final int get(char[] ch, int start, int length, int hash) { |
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if (_readOnlyMap != null) { |
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final int i = _readOnlyMap.get(ch, start, length, hash); |
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if (i != -1) { |
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return i; |
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} |
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} |
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final int tableIndex = indexFor(hash, _table.length); |
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for (Entry e = _table[tableIndex]; e != null; e = e._next) { |
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if (e._hash == hash && e.equalsCharArray(ch, start, length)) { |
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return e._value; |
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} |
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} |
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return NOT_PRESENT; |
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} |
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private final void addEntry(char[] ch, int start, int length, int hash, int value, int bucketIndex) { |
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Entry e = _table[bucketIndex]; |
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_table[bucketIndex] = new Entry(ch, start, length, hash, value, e); |
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_totalCharacterCount += length; |
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if (_size++ >= _threshold) { |
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resize(2 * _table.length); |
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} |
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} |
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private final void resize(int newCapacity) { |
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_capacity = newCapacity; |
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Entry[] oldTable = _table; |
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int oldCapacity = oldTable.length; |
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if (oldCapacity == MAXIMUM_CAPACITY) { |
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_threshold = Integer.MAX_VALUE; |
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return; |
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} |
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Entry[] newTable = new Entry[_capacity]; |
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transfer(newTable); |
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_table = newTable; |
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_threshold = (int)(_capacity * _loadFactor); |
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} |
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private final void transfer(Entry[] newTable) { |
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Entry[] src = _table; |
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int newCapacity = newTable.length; |
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for (int j = 0; j < src.length; j++) { |
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Entry e = src[j]; |
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if (e != null) { |
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src[j] = null; |
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do { |
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Entry next = e._next; |
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int i = indexFor(e._hash, newCapacity); |
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e._next = newTable[i]; |
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newTable[i] = e; |
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e = next; |
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} while (e != null); |
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} |
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} |
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} |
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} |