Creator.java

/**
 *  Copyright 2011 Oliver Buchtala
 *
 *	This file is part of ndogen.
 *
 *  ndogen is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  ndogen is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with ndogen.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.ndogen.substance;

import java.security.NoSuchAlgorithmException;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.Map;
import java.util.Queue;

import org.ndogen.watch.FileUtils;

public class Creator {
	
	private String md5;
	private final String user;
	private int count;
	private final Document doc;

	public Creator(String user, Document doc) {
		this.user = user;
		this.doc = doc;
		String name = doc.getName();
		try {
			md5 = FileUtils.getMD5(user + "@@" + name);
		} catch (NoSuchAlgorithmException e) {
			throw new RuntimeException(e);
		}
	}
	
	public Map<String, SubstanceNode> create() {
		count = 0;

		Map<String, SubstanceNode> all = new LinkedHashMap<String, SubstanceNode>();
		Queue<SubstanceNode> q = new LinkedList<SubstanceNode>();
		q.add(doc);
		
		while(!q.isEmpty()) {
			SubstanceNode node = q.poll();
			prepareNode(node);
			all.put(node.get_id(), node);
			if (node instanceof NestedNode) {
				NestedNode nested = (NestedNode) node;
				for (SubstanceNode child : nested) {
					q.add(child);
				}
			}
		}
		
		for (SubstanceNode substanceNode : all.values()) {
			if (substanceNode instanceof NestedNode) {
				NestedNode parent = (NestedNode) substanceNode;
				LinkedList<String> childrenIds = new LinkedList<String>();
				for (SubstanceNode child : parent) {
					childrenIds.add(child.get_id());
				}
				parent.setChildren(childrenIds);
			}
		}
		
		return all;
	}
	
	private void prepareNode(SubstanceNode node) {
		node.set_id(getId(node));
		if (node instanceof Section) {
			Section sec = (Section) node;
			sec.setDocument(doc.get_id());
		} else if (node instanceof Text) {
			Text t = (Text) node;
			t.setDocument(doc.get_id());
		}
	}

	public String getId(SubstanceNode node) {
		String id;
		if (node instanceof Document) {
			id = "/document";
		} else if (node instanceof Section) {
			id = "/section";
		} else if (node instanceof Code) {
			id = "/code";
		} else if (node instanceof Quote) {
			id = "/quote";
		} else if (node instanceof Text) {
			id = "/text";
		} else {
			id = "/other";
		}
		id += "/"+user+"/"+md5+"_"+count++;
		return id;
	}
}