| // Copyright (C) 2012 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.change; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.gerrit.extensions.registration.DynamicMap; |
| import com.google.gerrit.extensions.restapi.IdString; |
| import com.google.gerrit.extensions.restapi.ResourceNotFoundException; |
| import com.google.gerrit.extensions.restapi.RestCollection; |
| import com.google.gerrit.extensions.restapi.RestView; |
| import com.google.gerrit.extensions.restapi.TopLevelResource; |
| import com.google.gerrit.extensions.restapi.Url; |
| import com.google.gerrit.reviewdb.client.Branch; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.project.ChangeControl; |
| import com.google.gerrit.server.project.NoSuchChangeException; |
| import com.google.gerrit.server.query.change.QueryChanges; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Provider; |
| |
| import org.eclipse.jgit.lib.Constants; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class ChangesCollection implements |
| RestCollection<TopLevelResource, ChangeResource> { |
| private final Provider<ReviewDb> db; |
| private final ChangeControl.Factory changeControlFactory; |
| private final Provider<QueryChanges> queryFactory; |
| private final DynamicMap<RestView<ChangeResource>> views; |
| |
| @Inject |
| ChangesCollection( |
| Provider<ReviewDb> dbProvider, |
| ChangeControl.Factory changeControlFactory, |
| Provider<QueryChanges> queryFactory, |
| DynamicMap<RestView<ChangeResource>> views) { |
| this.db = dbProvider; |
| this.changeControlFactory = changeControlFactory; |
| this.queryFactory = queryFactory; |
| this.views = views; |
| } |
| |
| @Override |
| public RestView<TopLevelResource> list() { |
| return queryFactory.get(); |
| } |
| |
| @Override |
| public DynamicMap<RestView<ChangeResource>> views() { |
| return views; |
| } |
| |
| @Override |
| public ChangeResource parse(TopLevelResource root, IdString id) |
| throws ResourceNotFoundException, OrmException, |
| UnsupportedEncodingException { |
| ParsedId p = new ParsedId(id.encoded()); |
| List<Change> changes = findChanges(p); |
| if (changes.size() != 1) { |
| throw new ResourceNotFoundException(id); |
| } |
| |
| ChangeControl control; |
| try { |
| control = changeControlFactory.validateFor(changes.get(0)); |
| } catch (NoSuchChangeException e) { |
| throw new ResourceNotFoundException(id); |
| } |
| return new ChangeResource(control); |
| } |
| |
| private List<Change> findChanges(ParsedId k) throws OrmException { |
| if (k.legacyId != null) { |
| Change c = db.get().changes().get(k.legacyId); |
| if (c != null) { |
| return ImmutableList.of(c); |
| } |
| return Collections.emptyList(); |
| } else if (k.project == null && k.branch == null && k.changeId != null) { |
| Change.Key id = new Change.Key(k.changeId); |
| if (id.get().length() == 41) { |
| return db.get().changes().byKey(id).toList(); |
| } else { |
| return db.get().changes().byKeyRange(id, id.max()).toList(); |
| } |
| } |
| return db.get().changes().byBranchKey( |
| k.branch(), |
| new Change.Key(k.changeId)).toList(); |
| } |
| |
| private static class ParsedId { |
| Change.Id legacyId; |
| String project; |
| String branch; |
| String changeId; |
| |
| ParsedId(String id) throws ResourceNotFoundException { |
| if (id.matches("^[1-9][0-9]*$")) { |
| legacyId = Change.Id.parse(id); |
| return; |
| } |
| |
| int t2 = id.lastIndexOf('~'); |
| int t1 = id.lastIndexOf('~', t2 - 1); |
| if (t1 < 0 || t2 < 0) { |
| if (!id.matches("^I[0-9a-z]{4,40}$")) { |
| throw new ResourceNotFoundException(id); |
| } |
| changeId = id; |
| return; |
| } |
| |
| project = Url.decode(id.substring(0, t1)); |
| branch = Url.decode(id.substring(t1 + 1, t2)); |
| changeId = Url.decode(id.substring(t2 + 1)); |
| |
| if (!branch.startsWith(Constants.R_REFS)) { |
| branch = Constants.R_HEADS + branch; |
| } |
| } |
| |
| Branch.NameKey branch() { |
| return new Branch.NameKey(new Project.NameKey(project), branch); |
| } |
| } |
| } |