| /* |
| * Copyright 2000-2009 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.history.core.changes; |
| |
| import com.intellij.history.core.Content; |
| import com.intellij.history.core.StoredContent; |
| import com.intellij.history.core.tree.Entry; |
| import com.intellij.history.core.tree.RootEntry; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.List; |
| |
| public class ContentChange extends StructuralChange { |
| private final Content myOldContent; |
| private final long myOldTimestamp; |
| |
| public ContentChange(long id, String path, Content oldContent, long oldTimestamp) { |
| super(id, path); |
| myOldContent = oldContent; |
| myOldTimestamp = oldTimestamp; |
| } |
| |
| public ContentChange(DataInput in) throws IOException { |
| super(in); |
| myOldContent = new StoredContent(in); |
| myOldTimestamp = in.readLong(); |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| super.write(out); |
| myOldContent.write(out); |
| out.writeLong(myOldTimestamp); |
| } |
| |
| public Content getOldContent() { |
| return myOldContent; |
| } |
| |
| public long getOldTimestamp() { |
| return myOldTimestamp; |
| } |
| |
| @Override |
| public void revertOn(RootEntry root, boolean warnOnFileNotFound) { |
| Entry e = root.findEntry(myPath); |
| if (e == null) { |
| cannotRevert(myPath, warnOnFileNotFound); |
| return; |
| } |
| e.setContent(myOldContent, myOldTimestamp); |
| } |
| |
| @Override |
| public List<Content> getContentsToPurge() { |
| return Collections.singletonList(myOldContent); |
| } |
| |
| @Override |
| public void accept(ChangeVisitor v) throws ChangeVisitor.StopVisitingException { |
| v.visit(this); |
| } |
| } |