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// Copyright (C) 2017 The Android Open Source Project
//
// 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 com.google.gerrit.server.group;
import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.google.gerrit.extensions.client.ListGroupsOption;
import com.google.gerrit.extensions.common.GroupInfo;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.MethodNotAllowedException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.extensions.restapi.TopLevelResource;
import com.google.gerrit.index.query.QueryParseException;
import com.google.gerrit.index.query.QueryResult;
import com.google.gerrit.server.index.group.GroupIndex;
import com.google.gerrit.server.index.group.GroupIndexCollection;
import com.google.gerrit.server.query.group.GroupQueryBuilder;
import com.google.gerrit.server.query.group.GroupQueryProcessor;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
import org.kohsuke.args4j.Option;
public class QueryGroups implements RestReadView<TopLevelResource> {
private final GroupIndexCollection indexes;
private final GroupQueryBuilder queryBuilder;
private final GroupQueryProcessor queryProcessor;
private final GroupJson json;
private String query;
private int limit;
private int start;
private EnumSet<ListGroupsOption> options = EnumSet.noneOf(ListGroupsOption.class);
// TODO(ekempin): --query in ListGroups is marked as deprecated, once it is
// removed we want to rename --query2 to --query here.
/** --query (-q) is already used by {@link ListGroups} */
@Option(
name = "--query2",
aliases = {"-q2"},
usage = "group query")
public void setQuery(String query) {
this.query = query;
}
@Option(
name = "--limit",
aliases = {"-n"},
metaVar = "CNT",
usage = "maximum number of groups to list")
public void setLimit(int limit) {
this.limit = limit;
}
@Option(
name = "--start",
aliases = {"-S"},
metaVar = "CNT",
usage = "number of groups to skip")
public void setStart(int start) {
this.start = start;
}
@Option(name = "-o", usage = "Output options per group")
public void addOption(ListGroupsOption o) {
options.add(o);
}
@Option(name = "-O", usage = "Output option flags, in hex")
public void setOptionFlagsHex(String hex) {
options.addAll(ListGroupsOption.fromBits(Integer.parseInt(hex, 16)));
}
@Inject
protected QueryGroups(
GroupIndexCollection indexes,
GroupQueryBuilder queryBuilder,
GroupQueryProcessor queryProcessor,
GroupJson json) {
this.indexes = indexes;
this.queryBuilder = queryBuilder;
this.queryProcessor = queryProcessor;
this.json = json;
}
@Override
public List<GroupInfo> apply(TopLevelResource resource)
throws BadRequestException, MethodNotAllowedException, OrmException {
if (Strings.isNullOrEmpty(query)) {
throw new BadRequestException("missing query field");
}
if (queryProcessor.isDisabled()) {
throw new MethodNotAllowedException("query disabled");
}
GroupIndex searchIndex = indexes.getSearchIndex();
if (searchIndex == null) {
throw new MethodNotAllowedException("no group index");
}
if (start != 0) {
queryProcessor.setStart(start);
}
if (limit != 0) {
queryProcessor.setUserProvidedLimit(limit);
}
try {
QueryResult<InternalGroup> result = queryProcessor.query(queryBuilder.parse(query));
List<InternalGroup> groups = result.entities();
ArrayList<GroupInfo> groupInfos = Lists.newArrayListWithCapacity(groups.size());
json.addOptions(options);
for (InternalGroup group : groups) {
groupInfos.add(json.format(new InternalGroupDescription(group)));
}
if (!groupInfos.isEmpty() && result.more()) {
groupInfos.get(groupInfos.size() - 1)._moreGroups = true;
}
return groupInfos;
} catch (QueryParseException e) {
throw new BadRequestException(e.getMessage());
}
}
}
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