/*
 * Copyright 2012 LinkedIn Corp.
 * 
 * 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 azkaban.flow;

import java.util.HashMap;
import java.util.Map;

import azkaban.utils.Props;

public class FlowProps {
	private String parentSource;
	private String propSource;
	private Props props = null;

	public FlowProps(String parentSource, String propSource) {
		this.parentSource = parentSource;
		this.propSource = propSource;
	}

	public FlowProps(Props props) {
		this.setProps(props);
	}

	public Props getProps() {
		return props;
	}

	public void setProps(Props props) {
		this.props = props;
		this.parentSource = props.getParent() == null ? null : props.getParent().getSource();
		this.propSource = props.getSource();
	}
	
	public String getSource() {
		return propSource;
	}
	
	public String getInheritedSource() {
		return parentSource;
	}
	
	public Object toObject() {
		HashMap<String, Object> obj = new HashMap<String, Object>();
		obj.put("source", propSource);
		if (parentSource != null) {
			obj.put("inherits", parentSource);
		}
		return obj;
	}
	
	@SuppressWarnings("unchecked")
	public static FlowProps fromObject(Object obj) {
		Map<String, Object> flowMap = (Map<String, Object>)obj;
		String source = (String)flowMap.get("source");
		String parentSource = (String)flowMap.get("inherits");
		
		FlowProps flowProps = new FlowProps(parentSource, source);
		return flowProps;
	}
}
