| /* |
| * 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.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.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * @author nik |
| */ |
| public class VirtualFileSetState { |
| public static final DataExternalizer<VirtualFileSetState> EXTERNALIZER = new VirtualFileWithDependenciesExternalizer(); |
| private Map<String, Long> myTimestamps = new HashMap<String, Long>(); |
| |
| public VirtualFileSetState() { |
| } |
| |
| public VirtualFileSetState(Collection<? extends VirtualFile> files) { |
| for (VirtualFile file : files) { |
| addFile(file); |
| } |
| } |
| |
| public void addFile(@NotNull VirtualFile file) { |
| myTimestamps.put(file.getUrl(), file.getTimeStamp()); |
| } |
| |
| public boolean isUpToDate(Set<? extends VirtualFile> files) { |
| if (files.size() != myTimestamps.size()) { |
| return false; |
| } |
| |
| for (VirtualFile file : files) { |
| final Long timestamp = myTimestamps.get(file.getUrl()); |
| if (timestamp == null || timestamp != file.getTimeStamp()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| |
| private static class VirtualFileWithDependenciesExternalizer implements DataExternalizer<VirtualFileSetState> { |
| @Override |
| public void save(@NotNull DataOutput out, VirtualFileSetState value) throws IOException { |
| final Map<String, Long> dependencies = value.myTimestamps; |
| out.writeInt(dependencies.size()); |
| for (Map.Entry<String, Long> entry : dependencies.entrySet()) { |
| IOUtil.writeUTF(out, entry.getKey()); |
| out.writeLong(entry.getValue()); |
| } |
| } |
| |
| @Override |
| public VirtualFileSetState read(@NotNull DataInput in) throws IOException { |
| final VirtualFileSetState state = new VirtualFileSetState(); |
| int size = in.readInt(); |
| while (size-- > 0) { |
| final String url = IOUtil.readUTF(in); |
| final long timestamp = in.readLong(); |
| state.myTimestamps.put(url, timestamp); |
| } |
| return state; |
| } |
| } |
| } |