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- /*
- * 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
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- 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()));
- }
- }
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