/*
* Copyright 2003-2012 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 jetbrains.mps.idea.core.module;
import org.jetbrains.mps.openapi.module.SModuleReference;
import jetbrains.mps.util.io.ModelInputStream;
import jetbrains.mps.util.io.ModelOutputStream;
import org.jetbrains.annotations.NotNull;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* evgeny, 12/12/12
*/
public class CachedRepositoryData {
private final Collection<CachedModuleData> modules;
private Map<SModuleReference, CachedModuleData> map;
public CachedRepositoryData(@NotNull Collection<CachedModuleData> modules) {
this.modules = modules;
}
public Collection<CachedModuleData> getModules() {
return modules;
}
public CachedModuleData getModuleData(SModuleReference ref) {
if (map == null) {
map = new HashMap<SModuleReference, CachedModuleData>();
for (CachedModuleData d : modules) {
map.put(d.getHandle().getDescriptor().getModuleReference(), d);
}
}
return map.get(ref);
}
public void save(ModelOutputStream stream) throws IOException {
stream.writeInt(0x730aede);
stream.writeInt(modules.size());
for (CachedModuleData module : modules) {
module.save(stream);
}
}
public static CachedRepositoryData load(ModelInputStream stream) throws IOException {
if (stream.readInt() != 0x730aede) throw new IOException("bad stream: no repository start marker");
List<CachedModuleData> modules = new ArrayList<CachedModuleData>();
for (int size = stream.readInt(); size > 0; size--) {
modules.add(CachedModuleData.load(stream));
}
return new CachedRepositoryData(modules);
}
}