/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * 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.argeo.slc.core.execution.generator;
  
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Default implementation of <code>RunnableDataNode</code>
   *
   */
  public class DefaultRunnableDataNode implements RunnableDataNode {
  
  	private List<RunnableDataNode> children = new ArrayList<RunnableDataNode>();
  	
  	private RunnableDataNode parent;
  	
  	/**
  	 * Data of the RunnableDataNode. Does not contain
  	 * parent data.
  	 */
  	private Map<String, Object> properData = new HashMap<String, Object>();
  	
  	private String path;
  	
  	private String beanName;
  
  	public boolean isLeaf() {
  		return children.size() == 0;
  	}
  	
  	public List<RunnableDataNode> getChildren() {
  		return children;
  	}
  
  	public void addChild(RunnableDataNode child) {
  		child.setParent(this);
  		children.add(child);
  	}
  	
  	public Map<String, Object> getData() {
  		Map<String, Object> data = new HashMap<String, Object>();
  		if(parent != null) {
  			Map<String, Object> parentData = parent.getData();
  			if(parentData != null) {
  				data.putAll(parentData);
  			}
  		}
  		// entries defined in parentData can be overridden
  		// in properData
  		if(properData != null) {
  			data.putAll(properData);
  		}
  		return data;
  	}
  
  	public Map<String, Object> getProperData() {
  		return properData;
  	}
  
  	public void setProperData(Map<String, Object> properData) {
  		this.properData = properData;
  	}
  
  	public String getPath() {
  		return path;
  	}
  
  	public void setPath(String path) {
  		this.path = path;
  	}
  
  	public String getBeanName() {
  		return beanName;
  	}
  
  	public void setBeanName(String beanName) {
  		this.beanName = beanName;
  	}
  
  	public void setParent(RunnableDataNode parent) {
  		this.parent = parent;
  	}
  
 	public RunnableDataNode getParent() {
 		return parent;
 	}
 
 }