| /* |
| * 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 limitations |
| * under the License. |
| */ |
| |
| package org.apache.uima.cas.impl; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| |
| /** |
| * Sets of long values, used to support ll_set/getIntValue that manipulate v2 style long data |
| * |
| */ |
| final class LongSet { |
| |
| private int lastLongCode = 0; |
| final private ArrayList<Long> longs = new ArrayList<>(); |
| { |
| longs.add(null); |
| } |
| final private HashMap<Long, Integer> long2int = new HashMap<>(); |
| |
| // Reset the long heap (called on CAS reset). |
| void reset() { |
| longs.clear(); |
| longs.add(null); |
| long2int.clear(); |
| lastLongCode = 0; |
| } |
| |
| // Get a long value |
| Long getLongForCode(int longCode) { |
| if (longCode == LowLevelCAS.NULL_FS_REF) { |
| return null; |
| } |
| return longs.get(longCode); |
| } |
| |
| /** |
| * get the code for a long, adding it to the long table if not already there. |
| * |
| * @param s |
| * The long. |
| * @return The code corresponding to the long, which can be used in the getLongForCode call above |
| */ |
| int getCodeForLong(Long s) { |
| if (s == null) { |
| return LowLevelCAS.NULL_FS_REF; |
| } |
| |
| Integer prev = long2int.putIfAbsent(s, lastLongCode + 1); |
| if (prev == null) { |
| longs.add(s); |
| return ++lastLongCode; |
| } |
| |
| return prev; |
| } |
| |
| int getSize() { |
| return this.longs.size(); |
| } |
| |
| } |