/**
* Copyright 2011 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.base.Joiner;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.inject.Inject;
import com.google.wave.api.FetchProfilesRequest;
import com.google.wave.api.FetchProfilesResult;
import com.google.wave.api.InvalidRequestException;
import com.google.wave.api.JsonRpcConstant.ParamsProperty;
import com.google.wave.api.OperationRequest;
import com.google.wave.api.ParticipantProfile;
import org.waveprotocol.box.server.robots.OperationContext;
import org.waveprotocol.box.server.robots.util.OperationUtil;
import org.waveprotocol.wave.model.wave.ParticipantId;
import java.util.List;
import java.util.Map;
/**
* {@link OperationService} for the "fetchProfiles" operation.
*
* @author yurize@apache.org (Yuri Zelikov)
*/
public class FetchProfilesService implements OperationService {
public interface ProfilesFetcher {
public static final String UNKNOWN_IMAGE = "/static/images/unknown.jpg";
public static final String UNKNOWN_PROFILE = "";
ParticipantProfile fetchProfile(String address);
/** A simple profiles fetcher implementation. */
static ProfilesFetcher SIMPLE_PROFILES_FETCHER = new ProfilesFetcher() {
/**
* Attempts to create the fragments of the participant's name from their
* address, for example "john.smith@example.com" into ["John", "Smith"].
*/
private String buildNames(String address) {
// TODO (user) This code replicates ProfileImpl and should be refactored
// so the two classes can share the code properly.
String fullName;
List<String> names = Lists.newArrayList();
String nameWithoutDomain = address.split("@")[0];
if (nameWithoutDomain != null && !nameWithoutDomain.isEmpty()) {
// Include empty names from fragment, so split with a -ve.
for (String fragment : nameWithoutDomain.split("[._]", -1)) {
if (!fragment.isEmpty()) {
names.add(capitalize(fragment));
}
}
// ParticipantId normalization implies names can not be empty.
assert !names.isEmpty();
fullName = Joiner.on(' ').join(names);
return fullName;
} else {
// Name can be empty in case of shared domain participant which has
// the the form: @example.com.
return address;
}
}
private String capitalize(String s) {
return s.isEmpty() ? s : (Character.toUpperCase(s.charAt(0))) + s.substring(1);
}
@Override
public ParticipantProfile fetchProfile(String address) {
String name = buildNames(address);
return new ParticipantProfile(address, name, UNKNOWN_IMAGE, UNKNOWN_PROFILE);
}
};
}
private final ProfilesFetcher profilesFetcher;
@Inject
public FetchProfilesService(ProfilesFetcher profilesFetcher) {
this.profilesFetcher = profilesFetcher;
}
@Override
public void execute(OperationRequest operation, OperationContext context,
ParticipantId participant) throws InvalidRequestException {
FetchProfilesRequest request =
OperationUtil.getRequiredParameter(operation, ParamsProperty.FETCH_PROFILES_REQUEST);
List<String> requestAddresses = request.getParticipantIds();
List<ParticipantProfile> profiles = Lists.newArrayListWithCapacity(requestAddresses.size());
for (String address : requestAddresses) {
ParticipantProfile participantProfile = profilesFetcher.fetchProfile(address);
profiles.add(participantProfile);
}
FetchProfilesResult result = new FetchProfilesResult(profiles);
Map<ParamsProperty, Object> data =
ImmutableMap.<ParamsProperty, Object> of(ParamsProperty.FETCH_PROFILES_RESULT, result);
context.constructResponse(operation, data);
}
}