| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * 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.intellij.vcs.log.graph; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.util.NotNullFunction; |
| import com.intellij.util.containers.ContainerUtil; |
| import com.intellij.util.containers.hash.LinkedHashMap; |
| import com.intellij.vcs.log.Hash; |
| import com.intellij.vcs.log.VcsLogRefManager; |
| import com.intellij.vcs.log.VcsRef; |
| import com.intellij.vcs.log.data.RefsModel; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.*; |
| |
| public class GraphColorManagerImpl implements GraphColorManager<Integer> { |
| |
| private static final Logger LOG = Logger.getInstance(GraphColorManagerImpl.class); |
| static final int DEFAULT_COLOR = 0; |
| |
| @NotNull private final RefsModel myRefsModel; |
| @NotNull private final NotNullFunction<Integer, Hash> myHashGetter; |
| @NotNull private final Map<VirtualFile, VcsLogRefManager> myRefManagers; |
| |
| @NotNull private final LinkedHashMap<Integer, Integer> myErrorWasReported = new LinkedHashMap<Integer, Integer>(10) { |
| |
| @Override |
| protected boolean removeEldestEntry(Map.Entry<Integer, Integer> eldest) { |
| return size() > 100; |
| } |
| }; |
| |
| public GraphColorManagerImpl(@NotNull RefsModel refsModel, @NotNull NotNullFunction<Integer, Hash> hashGetter, |
| @NotNull Map<VirtualFile, VcsLogRefManager> refManagers) { |
| myRefsModel = refsModel; |
| myHashGetter = hashGetter; |
| myRefManagers = refManagers; |
| } |
| |
| @Override |
| public int getColorOfBranch(Integer headCommit) { |
| Collection<VcsRef> refs = myRefsModel.refsToCommit(headCommit); |
| if (isEmptyRefs(refs, headCommit)) { |
| return DEFAULT_COLOR; |
| } |
| VcsRef firstRef = Collections.min(refs, getRefManager(refs).getComparator()); |
| // TODO dark variant |
| return firstRef.getName().hashCode(); |
| } |
| |
| private boolean isEmptyRefs(@NotNull Collection<VcsRef> refs, int head) { |
| if (refs.isEmpty()) { |
| if (!myErrorWasReported.containsKey(head)) { |
| myErrorWasReported.put(head, head); |
| LOG.warn("No references found at head " + head + " which corresponds to hash " + myHashGetter.fun(head)); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public int getColorOfFragment(Integer headCommit, int magicIndex) { |
| return magicIndex; |
| } |
| |
| @Override |
| public int compareHeads(Integer head1, Integer head2) { |
| if (head1.equals(head2)) { |
| return 0; |
| } |
| |
| Collection<VcsRef> refs1 = myRefsModel.refsToCommit(head1); |
| Collection<VcsRef> refs2 = myRefsModel.refsToCommit(head2); |
| boolean firstEmpty = isEmptyRefs(refs1, head1); |
| boolean secondEmpty = isEmptyRefs(refs2, head2); |
| if (firstEmpty && secondEmpty) { |
| return 0; |
| } |
| if (firstEmpty) { |
| return 1; |
| } |
| if (secondEmpty) { |
| return -1; |
| } |
| |
| VcsLogRefManager refManager1 = getRefManager(refs1); |
| VcsLogRefManager refManager2 = getRefManager(refs2); |
| if (!refManager1.equals(refManager2)) { // heads from different VCSs are not comparable => are considered equal for now |
| return 0; |
| } |
| |
| Comparator<VcsRef> comparator = refManager1.getComparator(); |
| Iterator<VcsRef> it1 = ContainerUtil.sorted(refs1, comparator).iterator(); |
| Iterator<VcsRef> it2 = ContainerUtil.sorted(refs2, comparator).iterator(); |
| while (it1.hasNext() && it2.hasNext()) { |
| VcsRef ref1 = it1.next(); |
| VcsRef ref2 = it2.next(); |
| int compare = comparator.compare(ref1, ref2); |
| if (compare != 0) { |
| return compare; |
| } |
| } |
| if (it1.hasNext()) { |
| return -1; |
| } |
| if (it2.hasNext()) { |
| return 1; |
| } |
| return 0; |
| } |
| |
| @NotNull |
| private VcsLogRefManager getRefManager(@NotNull Collection<VcsRef> refs) { |
| return myRefManagers.get(refs.iterator().next().getRoot()); |
| } |
| |
| } |