| /* |
| * Copyright 2000-2010 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.compiler.impl.generic; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.util.io.FileUtil; |
| import com.intellij.util.io.IOUtil; |
| import gnu.trove.TIntHashSet; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.io.*; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * @author nik |
| */ |
| public class GenericCompilerPersistentData { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.compiler.impl.generic.GenericCompilerPersistentData"); |
| private static final int VERSION = 1; |
| private File myFile; |
| private Map<String, Integer> myTarget2Id = new HashMap<String, Integer>(); |
| private TIntHashSet myUsedIds = new TIntHashSet(); |
| private boolean myVersionChanged; |
| private final int myCompilerVersion; |
| |
| public GenericCompilerPersistentData(File cacheStoreDirectory, int compilerVersion) throws IOException { |
| myCompilerVersion = compilerVersion; |
| myFile = new File(cacheStoreDirectory, "info"); |
| if (!myFile.exists()) { |
| LOG.info("Compiler info file doesn't exists: " + myFile.getAbsolutePath()); |
| myVersionChanged = true; |
| return; |
| } |
| |
| try { |
| DataInputStream input = new DataInputStream(new BufferedInputStream(new FileInputStream(myFile))); |
| try { |
| final int dataVersion = input.readInt(); |
| if (dataVersion != VERSION) { |
| LOG.info("Version of compiler info file (" + myFile.getAbsolutePath() + ") changed: " + dataVersion + " -> " + VERSION); |
| myVersionChanged = true; |
| return; |
| } |
| |
| final int savedCompilerVersion = input.readInt(); |
| if (savedCompilerVersion != compilerVersion) { |
| LOG.info("Compiler caches version changed (" + myFile.getAbsolutePath() + "): " + savedCompilerVersion + " -> " + compilerVersion); |
| myVersionChanged = true; |
| return; |
| } |
| |
| int size = input.readInt(); |
| while (size-- > 0) { |
| final String target = IOUtil.readString(input); |
| final int id = input.readInt(); |
| myTarget2Id.put(target, id); |
| myUsedIds.add(id); |
| } |
| } |
| finally { |
| input.close(); |
| } |
| } |
| catch (IOException e) { |
| FileUtil.delete(myFile); |
| throw e; |
| } |
| } |
| |
| public boolean isVersionChanged() { |
| return myVersionChanged; |
| } |
| |
| public void save() throws IOException { |
| final DataOutputStream output = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(myFile))); |
| try { |
| output.writeInt(VERSION); |
| output.writeInt(myCompilerVersion); |
| output.writeInt(myTarget2Id.size()); |
| |
| for (Map.Entry<String, Integer> entry : myTarget2Id.entrySet()) { |
| IOUtil.writeString(entry.getKey(), output); |
| output.writeInt(entry.getValue()); |
| } |
| } |
| finally { |
| output.close(); |
| } |
| } |
| |
| public int getId(@NotNull String target) { |
| if (myTarget2Id.containsKey(target)) { |
| return myTarget2Id.get(target); |
| } |
| int id = 0; |
| while (myUsedIds.contains(id)) { |
| id++; |
| } |
| myTarget2Id.put(target, id); |
| myUsedIds.add(id); |
| return id; |
| } |
| |
| public Set<String> getAllTargets() { |
| return myTarget2Id.keySet(); |
| } |
| |
| public int removeId(String target) { |
| return myTarget2Id.remove(target); |
| } |
| } |