// Copyright (C) 2010 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.client.PatchSet;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.client.RevId;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.query.OperatorPredicate;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Provider;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.revwalk.filter.MessageRevFilter;
import org.eclipse.jgit.revwalk.filter.RevFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* Predicate to match changes that contains specified text in commit messages
* body.
*/
public class MessagePredicate extends OperatorPredicate<ChangeData> {
private static final Logger log =
LoggerFactory.getLogger(MessagePredicate.class);
private final Provider<ReviewDb> db;
private final GitRepositoryManager repoManager;
private final RevFilter rFilter;
public MessagePredicate(Provider<ReviewDb> db,
GitRepositoryManager repoManager, String text) {
super(ChangeQueryBuilder.FIELD_MESSAGE, text);
this.db = db;
this.repoManager = repoManager;
this.rFilter = MessageRevFilter.create(text);
}
@Override
public boolean match(ChangeData object) throws OrmException {
final PatchSet patchSet = object.currentPatchSet(db);
if (patchSet == null) {
return false;
}
final RevId revision = patchSet.getRevision();
if (revision == null) {
return false;
}
final AnyObjectId objectId = ObjectId.fromString(revision.get());
if (objectId == null) {
return false;
}
final Change change = object.change(db);
if (change == null) {
return false;
}
final Project.NameKey projectName = change.getProject();
if (projectName == null) {
return false;
}
try {
final Repository repo = repoManager.openRepository(projectName);
try {
final RevWalk rw = new RevWalk(repo);
try {
return rFilter.include(rw, rw.parseCommit(objectId));
} finally {
rw.release();
}
} finally {
repo.close();
}
} catch (RepositoryNotFoundException e) {
log.error("Repository \"" + projectName.get() + "\" unknown.", e);
} catch (MissingObjectException e) {
log.error(projectName.get() + "\" commit does not exist.", e);
} catch (IncorrectObjectTypeException e) {
log.error(projectName.get() + "\" revision is not a commit.", e);
} catch (IOException e) {
log.error("Could not search for commit message in \"" + projectName.get()
+ "\" repository.", e);
}
return false;
}
@Override
public int getCost() {
return 1;
}
}