/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.waveprotocol.box.server.robots.operations;
import com.google.common.collect.ImmutableMap;
import com.google.gson.Gson;
import com.google.wave.api.ApiIdSerializer;
import com.google.wave.api.InvalidRequestException;
import com.google.wave.api.JsonRpcConstant.ParamsProperty;
import com.google.wave.api.OperationRequest;
import com.google.wave.api.impl.GsonFactory;
import org.waveprotocol.box.common.comms.WaveClientRpc.WaveletSnapshot;
import org.waveprotocol.box.server.frontend.CommittedWaveletSnapshot;
import org.waveprotocol.box.server.robots.OperationContext;
import org.waveprotocol.wave.model.id.InvalidIdException;
import org.waveprotocol.wave.model.wave.ParticipantId;
import org.waveprotocol.wave.util.logging.Log;
import org.waveprotocol.wave.model.id.WaveId;
import org.waveprotocol.wave.model.id.WaveletId;
import org.waveprotocol.wave.model.id.WaveletName;
import org.waveprotocol.box.server.robots.util.OperationUtil;
import org.waveprotocol.box.server.common.SnapshotSerializer;
import org.waveprotocol.box.common.comms.proto.WaveletSnapshotProtoImpl;
import java.util.Map;
/**
* {@link OperationService} for the "exportSnapshot" operation.
*
* @author akaplanov@gmail.com (Andrew Kaplanov)
*/
public class ExportSnapshotService implements OperationService {
private static final Log LOG = Log.get(ExportSnapshotService.class);
private static final Gson gson = new GsonFactory().create();
private ExportSnapshotService() {
}
@Override
public void execute(OperationRequest operation, OperationContext context, ParticipantId participant)
throws InvalidRequestException {
WaveId waveId;
WaveletId waveletId;
try {
waveId = ApiIdSerializer.instance().deserialiseWaveId(
OperationUtil.<String>getRequiredParameter(operation, ParamsProperty.WAVE_ID));
waveletId = ApiIdSerializer.instance().deserialiseWaveletId(
OperationUtil.<String>getRequiredParameter(operation, ParamsProperty.WAVELET_ID));
} catch (InvalidIdException ex) {
throw new InvalidRequestException("Invalid id", operation, ex);
}
WaveletName waveletName = WaveletName.of(waveId, waveletId);
CommittedWaveletSnapshot snapshot = context.getWaveletSnapshot(waveletName, participant);
WaveletSnapshot protoSnapshot = SnapshotSerializer.serializeWavelet(snapshot.snapshot, snapshot.snapshot.getHashedVersion());
WaveletSnapshotProtoImpl protoSnapshotImpl = new WaveletSnapshotProtoImpl(protoSnapshot);
String jsonSnapshot = gson.toJson(protoSnapshotImpl.toGson(null, gson));
Map<ParamsProperty, Object> data =
ImmutableMap.<ParamsProperty, Object> of(ParamsProperty.RAW_SNAPSHOT, jsonSnapshot);
context.constructResponse(operation, data);
}
public static ExportSnapshotService create() {
return new ExportSnapshotService();
}
}