| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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. |
| */ |
| |
| package com.intellij.vcs.log.graph.utils.impl; |
| |
| import com.intellij.vcs.log.graph.utils.Flags; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.BitSet; |
| |
| public class BitSetFlags implements Flags { |
| |
| private final int mySize; |
| |
| @NotNull |
| private final BitSet myBitSet; |
| |
| // default value is false |
| public BitSetFlags(int size) { |
| if (size < 0) |
| throw new NegativeArraySizeException("size < 0: " + size); |
| mySize = size; |
| myBitSet = new BitSet(size); |
| } |
| |
| public BitSetFlags(int size, boolean defaultValue) { |
| this(size); |
| if (defaultValue) |
| setAll(true); |
| } |
| |
| @Override |
| public int size() { |
| return mySize; |
| } |
| |
| @Override |
| public boolean get(int index) { |
| checkRange(index); |
| return myBitSet.get(index); |
| } |
| |
| @Override |
| public void set(int index, boolean value) { |
| checkRange(index); |
| myBitSet.set(index, value); |
| } |
| |
| @Override |
| public void setAll(boolean value) { |
| myBitSet.set(0, mySize, value); |
| } |
| |
| private void checkRange(int index) { |
| if (index < 0) |
| throw new IndexOutOfBoundsException("index < 0:" + index); |
| if (index >= mySize) |
| throw new IndexOutOfBoundsException("index: " + index + " >= mySize: " + mySize); |
| } |
| |
| |
| } |