All Downloads are FREE. Search and download functionalities are using the official Maven repository.

com.google.gerrit.server.notedb.ChangeNotesCommit Maven / Gradle / Ivy

There is a newer version: 3.10.1
Show newest version
// Copyright (C) 2016 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.notedb;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.gerrit.server.notedb.ChangeNoteFooters.FOOTER_ATTENTION;
import static com.google.gerrit.server.notedb.ChangeNoteFooters.FOOTER_PATCH_SET;

import com.google.common.collect.ListMultimap;
import com.google.common.collect.MultimapBuilder;
import com.google.common.collect.Sets;
import com.google.gerrit.server.git.InMemoryInserter;
import com.google.gerrit.server.git.InsertedObject;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.lib.AnyObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.FooterKey;
import org.eclipse.jgit.revwalk.FooterLine;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;

/**
 * Commit implementation with some optimizations for change notes parsing.
 *
 * 

* *

    *
  • Caches the result of {@link #getFooterLines()}, which is otherwise very wasteful with * allocations. *
*/ public class ChangeNotesCommit extends RevCommit { /** A {@link RevWalk} producing {@link ChangeNotesCommit}s. */ public static ChangeNotesRevWalk newRevWalk(Repository repo) { return new ChangeNotesRevWalk(repo); } public static ChangeNotesRevWalk newStagedRevWalk( Repository repo, Iterable stagedObjs) { final InMemoryInserter ins = new InMemoryInserter(repo); for (InsertedObject obj : stagedObjs) { ins.insert(obj); } return new ChangeNotesRevWalk(ins.newReader()) { @Override public void close() { ins.close(); super.close(); } }; } /** A {@link RevWalk} that creates {@link ChangeNotesCommit}s rather than {@link RevCommit}s */ public static class ChangeNotesRevWalk extends RevWalk { private ChangeNotesRevWalk(Repository repo) { super(repo); } private ChangeNotesRevWalk(ObjectReader reader) { super(reader); } @Override protected ChangeNotesCommit createCommit(AnyObjectId id) { return new ChangeNotesCommit(id); } @Override public ChangeNotesCommit next() throws MissingObjectException, IncorrectObjectTypeException, IOException { return (ChangeNotesCommit) super.next(); } @Override public void markStart(RevCommit c) throws MissingObjectException, IncorrectObjectTypeException, IOException { checkArgument(c instanceof ChangeNotesCommit); super.markStart(c); } @Override public void markUninteresting(RevCommit c) throws MissingObjectException, IncorrectObjectTypeException, IOException { checkArgument(c instanceof ChangeNotesCommit); super.markUninteresting(c); } @Override public ChangeNotesCommit lookupCommit(AnyObjectId id) { return (ChangeNotesCommit) super.lookupCommit(id); } @Override public ChangeNotesCommit parseCommit(AnyObjectId id) throws MissingObjectException, IncorrectObjectTypeException, IOException { return (ChangeNotesCommit) super.parseCommit(id); } } private ListMultimap footerLines; public ChangeNotesCommit(AnyObjectId id) { super(id); } public List getFooterLineValues(FooterKey key) { if (footerLines == null) { List src = getFooterLines(); footerLines = MultimapBuilder.hashKeys(src.size()).arrayListValues(1).build(); for (FooterLine fl : src) { footerLines.put(fl.getKey().toLowerCase(Locale.US), fl.getValue()); } } return footerLines.get(key.getName().toLowerCase(Locale.US)); } public boolean isAttentionSetCommitOnly(boolean hasChangeMessage) { return !hasChangeMessage && footerLines .keySet() .equals( Sets.newHashSet( FOOTER_PATCH_SET.getName().toLowerCase(Locale.US), FOOTER_ATTENTION.getName().toLowerCase(Locale.US))); } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy