| /* |
| * 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.openapi.compiler.generic; |
| |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileManager; |
| import com.intellij.util.io.DataExternalizer; |
| import com.intellij.util.io.IOUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * @author nik |
| */ |
| public class VirtualFileWithDependenciesState { |
| public static final DataExternalizer<VirtualFileWithDependenciesState> EXTERNALIZER = new VirtualFileWithDependenciesExternalizer(); |
| private long mySourceTimestamp; |
| private Map<String, Long> myDependencies = new HashMap<String, Long>(); |
| |
| public VirtualFileWithDependenciesState(long sourceTimestamp) { |
| mySourceTimestamp = sourceTimestamp; |
| } |
| |
| public void addDependency(@NotNull VirtualFile file) { |
| myDependencies.put(file.getUrl(), file.getTimeStamp()); |
| } |
| |
| public boolean isUpToDate(@NotNull VirtualFile sourceFile) { |
| if (sourceFile.getTimeStamp() != mySourceTimestamp) { |
| return false; |
| } |
| |
| VirtualFileManager manager = VirtualFileManager.getInstance(); |
| for (Map.Entry<String, Long> entry : myDependencies.entrySet()) { |
| final VirtualFile file = manager.findFileByUrl(entry.getKey()); |
| if (file == null || file.getTimeStamp() != entry.getValue()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| |
| private static class VirtualFileWithDependenciesExternalizer implements DataExternalizer<VirtualFileWithDependenciesState> { |
| @Override |
| public void save(@NotNull DataOutput out, VirtualFileWithDependenciesState value) throws IOException { |
| out.writeLong(value.mySourceTimestamp); |
| final Map<String, Long> dependencies = value.myDependencies; |
| out.writeInt(dependencies.size()); |
| for (Map.Entry<String, Long> entry : dependencies.entrySet()) { |
| IOUtil.writeUTF(out, entry.getKey()); |
| out.writeLong(entry.getValue()); |
| } |
| } |
| |
| @Override |
| public VirtualFileWithDependenciesState read(@NotNull DataInput in) throws IOException { |
| final VirtualFileWithDependenciesState state = new VirtualFileWithDependenciesState(in.readLong()); |
| int size = in.readInt(); |
| while (size-- > 0) { |
| final String url = IOUtil.readUTF(in); |
| final long timestamp = in.readLong(); |
| state.myDependencies.put(url, timestamp); |
| } |
| return state; |
| } |
| } |
| } |