/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.jackrabbit.mongomk.impl.builder;
import org.apache.jackrabbit.mongomk.api.model.Commit;
import org.apache.jackrabbit.mongomk.api.model.Instruction.AddNodeInstruction;
import org.apache.jackrabbit.mongomk.api.model.Instruction.AddPropertyInstruction;
import org.apache.jackrabbit.mongomk.api.model.Instruction.CopyNodeInstruction;
import org.apache.jackrabbit.mongomk.api.model.Instruction.MoveNodeInstruction;
import org.apache.jackrabbit.mongomk.api.model.Instruction.RemoveNodeInstruction;
import org.apache.jackrabbit.mongomk.api.model.Instruction.SetPropertyInstruction;
import org.apache.jackrabbit.mongomk.impl.json.DefaultJsopHandler;
import org.apache.jackrabbit.mongomk.impl.json.JsopParser;
import org.apache.jackrabbit.mongomk.impl.model.AddNodeInstructionImpl;
import org.apache.jackrabbit.mongomk.impl.model.AddPropertyInstructionImpl;
import org.apache.jackrabbit.mongomk.impl.model.CommitImpl;
import org.apache.jackrabbit.mongomk.impl.model.CopyNodeInstructionImpl;
import org.apache.jackrabbit.mongomk.impl.model.MoveNodeInstructionImpl;
import org.apache.jackrabbit.mongomk.impl.model.RemoveNodeInstructionImpl;
import org.apache.jackrabbit.mongomk.impl.model.SetPropertyInstructionImpl;
/**
* A builder to convert a <a href="http://wiki.apache.org/jackrabbit/Jsop">JSOP</a> diff into a {@link Commit}.
*
* @author <a href="mailto:pmarx@adobe.com>Philipp Marx</a>
*/
public class CommitBuilder {
/**
* Creates and returns the {@link Commit}.
*
* @param path The root path of the {@code Commit}.
* @param diff The {@code JSOP} diff of the {@code Commit}.
* @param message The message of the {@code Commit}.
*
* @return The {@code Commit}.
* @throws Exception If an error occurred while creating the {@code Commit}.
*/
public static Commit build(String path, String diff, String message) throws Exception {
CommitHandler commitHandler = new CommitHandler(new CommitImpl(path, diff, message));
JsopParser jsopParser = new JsopParser(path, diff, commitHandler);
jsopParser.parse();
return commitHandler.getCommit();
}
private CommitBuilder() {
// no instantiation
}
/**
* The {@link DefaultHandler} for the {@code JSOP} diff.
*/
private static class CommitHandler extends DefaultJsopHandler {
private final CommitImpl commit;
CommitHandler(CommitImpl commit) {
this.commit = commit;
}
@Override
public void nodeAdded(String parentPath, String name) {
AddNodeInstruction instruction = new AddNodeInstructionImpl(parentPath, name);
commit.addInstruction(instruction);
}
@Override
public void nodeCopied(String rootPath, String oldPath, String newPath) {
CopyNodeInstruction instruction = new CopyNodeInstructionImpl(rootPath, oldPath, newPath);
commit.addInstruction(instruction);
}
@Override
public void nodeMoved(String rootPath, String oldPath, String newPath) {
MoveNodeInstruction instruction = new MoveNodeInstructionImpl(rootPath, oldPath, newPath);
commit.addInstruction(instruction);
}
@Override
public void nodeRemoved(String parentPath, String name) {
RemoveNodeInstruction instruction = new RemoveNodeInstructionImpl(parentPath, name);
commit.addInstruction(instruction);
}
@Override
public void propertyAdded(String path, String key, Object value) {
AddPropertyInstruction instruction = new AddPropertyInstructionImpl(path, key, value);
commit.addInstruction(instruction);
}
@Override
public void propertySet(String path, String key, Object value) {
SetPropertyInstruction instruction = new SetPropertyInstructionImpl(path, key, value);
commit.addInstruction(instruction);
}
Commit getCommit() {
return commit;
}
}
}