/**
* Copyright 2010 Google Inc.
*
* 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.waveprotocol.box.server.robots.operations;
import com.google.common.collect.ImmutableMap;
import com.google.inject.Inject;
import com.google.wave.api.InvalidRequestException;
import com.google.wave.api.JsonRpcConstant.ParamsProperty;
import com.google.wave.api.OperationRequest;
import com.google.wave.api.SearchResult;
import org.waveprotocol.box.server.robots.OperationContext;
import org.waveprotocol.box.server.robots.util.OperationUtil;
import org.waveprotocol.box.server.waveserver.SearchProvider;
import org.waveprotocol.wave.model.wave.ParticipantId;
import java.util.Map;
/**
* {@link OperationService} for the "search" operation.
*
* @author ljvderijk@google.com (Lennard de Rijk)
* @author josephg@gmail.com (Joseph Gentle)
*/
public class SearchService implements OperationService {
/**
* The number of search results to return if not defined in the request.
* Defined in the spec.
*/
private static final int DEFAULT_NUMBER_SEARCH_RESULTS = 10;
private final SearchProvider searchProvider;
@Inject
public SearchService(SearchProvider searchProvider) {
this.searchProvider = searchProvider;
}
@Override
public void execute(
OperationRequest operation, OperationContext context, ParticipantId participant)
throws InvalidRequestException {
String query = OperationUtil.getRequiredParameter(operation, ParamsProperty.QUERY);
int index = OperationUtil.getOptionalParameter(operation, ParamsProperty.INDEX, 0);
int numResults = OperationUtil.getOptionalParameter(
operation, ParamsProperty.NUM_RESULTS, DEFAULT_NUMBER_SEARCH_RESULTS);
SearchResult result = search(participant, query, index, numResults);
Map<ParamsProperty, Object> data =
ImmutableMap.<ParamsProperty, Object> of(ParamsProperty.SEARCH_RESULTS, result);
context.constructResponse(operation, data);
}
// Note that this search implementation is only of prototype quality.
private SearchResult search(
ParticipantId participant, String query, int startAt, int numResults) {
return searchProvider.search(participant, query, startAt, numResults);
}
}