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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.query.group;
import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.google.common.primitives.Ints;
import com.google.gerrit.common.data.GroupReference;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.server.account.GroupBackend;
import com.google.gerrit.server.account.GroupBackends;
import com.google.gerrit.server.account.GroupCache;
import com.google.gerrit.server.query.LimitPredicate;
import com.google.gerrit.server.query.Predicate;
import com.google.gerrit.server.query.QueryBuilder;
import com.google.gerrit.server.query.QueryParseException;
import com.google.inject.Inject;
import java.util.List;
/** Parses a query string meant to be applied to group objects. */
public class GroupQueryBuilder extends QueryBuilder<AccountGroup> {
public static final String FIELD_UUID = "uuid";
public static final String FIELD_DESCRIPTION = "description";
public static final String FIELD_INNAME = "inname";
public static final String FIELD_NAME = "name";
public static final String FIELD_OWNER = "owner";
public static final String FIELD_LIMIT = "limit";
private static final QueryBuilder.Definition<AccountGroup, GroupQueryBuilder> mydef =
new QueryBuilder.Definition<>(GroupQueryBuilder.class);
public static class Arguments {
final GroupCache groupCache;
final GroupBackend groupBackend;
@Inject
Arguments(GroupCache groupCache, GroupBackend groupBackend) {
this.groupCache = groupCache;
this.groupBackend = groupBackend;
}
}
private final Arguments args;
@Inject
GroupQueryBuilder(Arguments args) {
super(mydef);
this.args = args;
}
@Operator
public Predicate<AccountGroup> uuid(String uuid) {
return GroupPredicates.uuid(new AccountGroup.UUID(uuid));
}
@Operator
public Predicate<AccountGroup> description(String description) throws QueryParseException {
if (Strings.isNullOrEmpty(description)) {
throw error("description operator requires a value");
}
return GroupPredicates.description(description);
}
@Operator
public Predicate<AccountGroup> inname(String namePart) {
if (namePart.isEmpty()) {
return name(namePart);
}
return GroupPredicates.inname(namePart);
}
@Operator
public Predicate<AccountGroup> name(String name) {
return GroupPredicates.name(name);
}
@Operator
public Predicate<AccountGroup> owner(String owner) throws QueryParseException {
AccountGroup group = args.groupCache.get(new AccountGroup.UUID(owner));
if (group != null) {
return GroupPredicates.owner(group.getGroupUUID());
}
GroupReference g = GroupBackends.findBestSuggestion(args.groupBackend, owner);
if (g == null) {
throw error("Group " + owner + " not found");
}
return GroupPredicates.owner(g.getUUID());
}
@Operator
public Predicate<AccountGroup> is(String value) throws QueryParseException {
if ("visibletoall".equalsIgnoreCase(value)) {
return GroupPredicates.isVisibleToAll();
}
throw error("Invalid query");
}
@Override
protected Predicate<AccountGroup> defaultField(String query) throws QueryParseException {
// Adapt the capacity of this list when adding more default predicates.
List<Predicate<AccountGroup>> preds = Lists.newArrayListWithCapacity(5);
preds.add(uuid(query));
preds.add(name(query));
preds.add(inname(query));
if (!Strings.isNullOrEmpty(query)) {
preds.add(description(query));
}
try {
preds.add(owner(query));
} catch (QueryParseException e) {
// Skip.
}
return Predicate.or(preds);
}
@Operator
public Predicate<AccountGroup> limit(String query) throws QueryParseException {
Integer limit = Ints.tryParse(query);
if (limit == null) {
throw error("Invalid limit: " + query);
}
return new LimitPredicate<>(FIELD_LIMIT, limit);
}
}
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