| /* |
| * 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 org.jetbrains.idea.svn.history; |
| |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.util.Consumer; |
| import com.intellij.util.ThrowableConsumer; |
| import org.jetbrains.annotations.NotNull; |
| import org.tmatesoft.svn.core.SVNException; |
| |
| import java.util.List; |
| |
| /** |
| * @author Konstantin Kolosovsky. |
| */ |
| public class MergeSourceHierarchyBuilder implements ThrowableConsumer<Pair<LogEntry, Integer>, SVNException> { |
| |
| private LogHierarchyNode myCurrentHierarchy; |
| @NotNull private final Consumer<LogHierarchyNode> myConsumer; |
| |
| public MergeSourceHierarchyBuilder(@NotNull Consumer<LogHierarchyNode> consumer) { |
| myConsumer = consumer; |
| } |
| |
| public void consume(Pair<LogEntry, Integer> svnLogEntryIntegerPair) throws SVNException { |
| final LogEntry logEntry = svnLogEntryIntegerPair.getFirst(); |
| final Integer mergeLevel = svnLogEntryIntegerPair.getSecond(); |
| |
| if (mergeLevel < 0) { |
| if (myCurrentHierarchy != null) { |
| myConsumer.consume(myCurrentHierarchy); |
| } |
| if (logEntry.hasChildren()) { |
| myCurrentHierarchy = new LogHierarchyNode(logEntry); |
| } else { |
| // just pass |
| myCurrentHierarchy = null; |
| myConsumer.consume(new LogHierarchyNode(logEntry)); |
| } |
| } else { |
| addToLevel(myCurrentHierarchy, logEntry, mergeLevel); |
| } |
| } |
| |
| public void finish() { |
| if (myCurrentHierarchy != null) { |
| myConsumer.consume(myCurrentHierarchy); |
| } |
| } |
| |
| private static void addToLevel(final LogHierarchyNode tree, final LogEntry entry, final int left) { |
| assert tree != null; |
| if (left == 0) { |
| tree.add(entry); |
| } else { |
| final List<LogHierarchyNode> children = tree.getChildren(); |
| assert ! children.isEmpty(); |
| addToLevel(children.get(children.size() - 1), entry, left - 1); |
| } |
| } |
| } |