| // Copyright (C) 2009 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.change; |
| |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.query.OperatorPredicate; |
| import com.google.gerrit.server.query.Predicate; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Provider; |
| |
| import java.util.ArrayList; |
| import java.util.EnumMap; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| |
| /** |
| * Predicate for a {@link Change.Status}. |
| * <p> |
| * The actual name of this operator can differ, it usually comes as {@code |
| * status:} but may also be {@code is:} to help do-what-i-meanery for end-users |
| * searching for changes. Either operator name has the same meaning. |
| */ |
| final class ChangeStatusPredicate extends OperatorPredicate<ChangeData> { |
| private static final Map<String, Change.Status> byName; |
| private static final EnumMap<Change.Status, String> byEnum; |
| |
| static { |
| byName = new HashMap<String, Change.Status>(); |
| byEnum = new EnumMap<Change.Status, String>(Change.Status.class); |
| for (final Change.Status s : Change.Status.values()) { |
| final String name = s.name().toLowerCase(); |
| byName.put(name, s); |
| byEnum.put(s, name); |
| } |
| } |
| |
| static Predicate<ChangeData> open(Provider<ReviewDb> dbProvider) { |
| List<Predicate<ChangeData>> r = new ArrayList<Predicate<ChangeData>>(4); |
| for (final Change.Status e : Change.Status.values()) { |
| if (e.isOpen()) { |
| r.add(new ChangeStatusPredicate(dbProvider, e)); |
| } |
| } |
| return r.size() == 1 ? r.get(0) : or(r); |
| } |
| |
| static Predicate<ChangeData> closed(Provider<ReviewDb> dbProvider) { |
| List<Predicate<ChangeData>> r = new ArrayList<Predicate<ChangeData>>(4); |
| for (final Change.Status e : Change.Status.values()) { |
| if (e.isClosed()) { |
| r.add(new ChangeStatusPredicate(dbProvider, e)); |
| } |
| } |
| return r.size() == 1 ? r.get(0) : or(r); |
| } |
| |
| private static Change.Status parse(final String value) { |
| final Change.Status s = byName.get(value); |
| if (s == null) { |
| throw new IllegalArgumentException(); |
| } |
| return s; |
| } |
| |
| private final Provider<ReviewDb> dbProvider; |
| private final Change.Status status; |
| |
| ChangeStatusPredicate(Provider<ReviewDb> dbProvider, String value) { |
| this(dbProvider, parse(value)); |
| } |
| |
| ChangeStatusPredicate(Provider<ReviewDb> dbProvider, Change.Status status) { |
| super(ChangeQueryBuilder.FIELD_STATUS, byEnum.get(status)); |
| this.dbProvider = dbProvider; |
| this.status = status; |
| } |
| |
| Change.Status getStatus() { |
| return status; |
| } |
| |
| @Override |
| public boolean match(final ChangeData object) throws OrmException { |
| Change change = object.change(dbProvider); |
| return change != null && status.equals(change.getStatus()); |
| } |
| |
| @Override |
| public int getCost() { |
| return 0; |
| } |
| |
| @Override |
| public int hashCode() { |
| return status.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other instanceof ChangeStatusPredicate) { |
| final ChangeStatusPredicate p = (ChangeStatusPredicate) other; |
| return status.equals(p.status); |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return getOperator() + ":" + getValue(); |
| } |
| } |