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/*
* 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 org.jetbrains.jps.classFilesIndex;
import com.intellij.util.io.DataExternalizer;
import gnu.trove.TObjectIntHashMap;
import gnu.trove.TObjectIntProcedure;
import org.jetbrains.annotations.NotNull;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
/**
* @author Dmitry Batkovich
*/
public class TObjectIntHashMapExternalizer<K> implements DataExternalizer<TObjectIntHashMap<K>> {
private final DataExternalizer<K> myKeyDataExternalizer;
public TObjectIntHashMapExternalizer(final DataExternalizer<K> keyDataExternalizer) {
myKeyDataExternalizer = keyDataExternalizer;
}
@Override
public void save(@NotNull final DataOutput out, final TObjectIntHashMap<K> map) throws IOException {
out.writeInt(map.size());
try {
map.forEachEntry(new TObjectIntProcedure<K>() {
@Override
public boolean execute(final K key, final int value) {
try {
myKeyDataExternalizer.save(out, key);
out.writeInt(value);
}
catch (final IOException e) {
throw new IoExceptionRuntimeWrapperException(e);
}
return true;
}
});
}
catch (final IoExceptionRuntimeWrapperException e) {
throw e.getIoException();
}
}
@Override
public TObjectIntHashMap<K> read(@NotNull final DataInput in) throws IOException {
final int size = in.readInt();
final TObjectIntHashMap<K> map = new TObjectIntHashMap<K>(size);
for (int i = 0; i < size; i++) {
map.put(myKeyDataExternalizer.read(in), in.readInt());
}
return map;
}
private static class IoExceptionRuntimeWrapperException extends RuntimeException {
private final IOException myIoException;
private IoExceptionRuntimeWrapperException(final IOException ioException) {
myIoException = ioException;
}
public IOException getIoException() {
return myIoException;
}
}
}
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