/*
* Copyright (C) 2011, Google Inc.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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package org.eclipse.jgit.storage.dht.spi.memory;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.eclipse.jgit.generated.storage.dht.proto.GitStore;
import org.eclipse.jgit.storage.dht.AsyncCallback;
import org.eclipse.jgit.storage.dht.ChunkKey;
import org.eclipse.jgit.storage.dht.DhtException;
import org.eclipse.jgit.storage.dht.DhtText;
import org.eclipse.jgit.storage.dht.ObjectIndexKey;
import org.eclipse.jgit.storage.dht.ObjectInfo;
import org.eclipse.jgit.storage.dht.spi.Context;
import org.eclipse.jgit.storage.dht.spi.ObjectIndexTable;
import org.eclipse.jgit.storage.dht.spi.WriteBuffer;
import org.eclipse.jgit.storage.dht.spi.util.ColumnMatcher;
import com.google.protobuf.InvalidProtocolBufferException;
final class MemObjectIndexTable implements ObjectIndexTable {
private final MemTable table = new MemTable();
private final ColumnMatcher colInfo = new ColumnMatcher("info:");
public void get(Context options, Set<ObjectIndexKey> objects,
AsyncCallback<Map<ObjectIndexKey, Collection<ObjectInfo>>> callback) {
Map<ObjectIndexKey, Collection<ObjectInfo>> out = new HashMap<ObjectIndexKey, Collection<ObjectInfo>>();
for (ObjectIndexKey objId : objects) {
for (MemTable.Cell cell : table.scanFamily(objId.asBytes(), colInfo)) {
Collection<ObjectInfo> chunks = out.get(objId);
ChunkKey chunkKey;
if (chunks == null) {
chunks = new ArrayList<ObjectInfo>(4);
out.put(objId, chunks);
}
chunkKey = ChunkKey.fromBytes(colInfo.suffix(cell.getName()));
try {
chunks.add(new ObjectInfo(
chunkKey,
cell.getTimestamp(),
GitStore.ObjectInfo.parseFrom(cell.getValue())));
} catch (InvalidProtocolBufferException badCell) {
callback.onFailure(new DhtException(MessageFormat.format(
DhtText.get().invalidObjectInfo, objId, chunkKey),
badCell));
return;
}
}
}
callback.onSuccess(out);
}
public void add(ObjectIndexKey objId, ObjectInfo info, WriteBuffer buffer)
throws DhtException {
ChunkKey chunk = info.getChunkKey();
table.put(objId.asBytes(), colInfo.append(chunk.asBytes()),
info.getData().toByteArray());
}
public void remove(ObjectIndexKey objId, ChunkKey chunk, WriteBuffer buffer)
throws DhtException {
table.delete(objId.asBytes(), colInfo.append(chunk.asBytes()));
}
}