136 lines
4.7 KiB
Java
136 lines
4.7 KiB
Java
// Copyright (C) 2010 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.gerrit.httpd.rpc.changedetail;
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import com.google.gerrit.common.data.IncludedInDetail;
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import com.google.gerrit.common.errors.InvalidRevisionException;
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import com.google.gerrit.httpd.rpc.Handler;
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import com.google.gerrit.reviewdb.Change;
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import com.google.gerrit.reviewdb.PatchSet;
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import com.google.gerrit.reviewdb.ReviewDb;
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import com.google.gerrit.server.git.GitRepositoryManager;
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import com.google.gerrit.server.project.ChangeControl;
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import com.google.gerrit.server.project.NoSuchChangeException;
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import com.google.gwtorm.client.OrmException;
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import com.google.inject.Inject;
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import com.google.inject.assistedinject.Assisted;
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import org.eclipse.jgit.errors.IncorrectObjectTypeException;
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import org.eclipse.jgit.errors.MissingObjectException;
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import org.eclipse.jgit.lib.Constants;
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import org.eclipse.jgit.lib.ObjectId;
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import org.eclipse.jgit.lib.Ref;
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import org.eclipse.jgit.lib.Repository;
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import org.eclipse.jgit.revwalk.RevCommit;
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import org.eclipse.jgit.revwalk.RevWalk;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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/** Creates a {@link IncludedInDetail} of a {@link Change}. */
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class IncludedInDetailFactory extends Handler<IncludedInDetail> {
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private static final Logger log =
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LoggerFactory.getLogger(IncludedInDetailFactory.class);
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interface Factory {
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IncludedInDetailFactory create(Change.Id id);
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}
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private final ReviewDb db;
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private final ChangeControl.Factory changeControlFactory;
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private final GitRepositoryManager repoManager;
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private final Change.Id changeId;
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private IncludedInDetail detail;
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private ChangeControl control;
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@Inject
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IncludedInDetailFactory(final ReviewDb db,
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final ChangeControl.Factory changeControlFactory,
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final GitRepositoryManager repoManager, @Assisted final Change.Id changeId) {
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this.changeControlFactory = changeControlFactory;
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this.repoManager = repoManager;
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this.changeId = changeId;
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this.db = db;
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}
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@Override
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public IncludedInDetail call() throws OrmException, NoSuchChangeException,
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IOException, InvalidRevisionException {
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control = changeControlFactory.validateFor(changeId);
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final PatchSet patch =
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db.patchSets().get(control.getChange().currentPatchSetId());
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final Repository repo =
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repoManager.openRepository(control.getProject().getNameKey());
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try {
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final RevWalk rw = new RevWalk(repo);
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try {
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rw.setRetainBody(false);
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final RevCommit rev;
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try {
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rev = rw.parseCommit(ObjectId.fromString(patch.getRevision().get()));
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} catch (IncorrectObjectTypeException err) {
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throw new InvalidRevisionException();
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} catch (MissingObjectException err) {
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throw new InvalidRevisionException();
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}
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detail = new IncludedInDetail();
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detail.setBranches(includedIn(repo, rw, rev, Constants.R_HEADS));
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detail.setTags(includedIn(repo, rw, rev, Constants.R_TAGS));
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return detail;
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} finally {
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rw.release();
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}
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} finally {
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repo.close();
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}
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}
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private List<String> includedIn(final Repository repo, final RevWalk rw,
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final RevCommit rev, final String namespace) throws IOException,
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MissingObjectException, IncorrectObjectTypeException {
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final List<String> result = new ArrayList<String>();
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for (final Ref ref : repo.getRefDatabase().getRefs(namespace).values()) {
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final RevCommit tip;
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try {
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tip = rw.parseCommit(ref.getObjectId());
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} catch (IncorrectObjectTypeException notCommit) {
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// Its OK for a tag reference to point to a blob or a tree, this
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// is common in the Linux kernel or git.git repository.
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//
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continue;
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} catch (MissingObjectException notHere) {
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// Log the problem with this branch, but keep processing.
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//
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log.warn("Reference " + ref.getName() + " in " + repo.getDirectory()
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+ " points to dangling object " + ref.getObjectId());
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continue;
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}
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if (rw.isMergedInto(rev, tip)) {
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result.add(ref.getName().substring(namespace.length()));
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}
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}
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return result;
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}
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}
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