org.eclipse.epf.library.tests/src/org/eclipse/epf/library/tester/OutputDiffAnalyzor.java

//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 IBM Corporation and others.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.library.tester;

import java.io.File;

import org.eclipse.epf.common.utils.XMLUtil;
import org.eclipse.epf.library.tester.iface.TestTracer;
import org.w3c.dom.Document;

/**
 * Class to analyze the differneces between two library tester outputs
 * 
 * @author Weiping Lu
 * @since 1.0
 * 
 */
public class OutputDiffAnalyzor {
	
	private TestTracer tracer;
	private boolean needToAnalyze = false; 
	private File f1;
	private File f2;
	private Document d1;
	private Document d2;

	public OutputDiffAnalyzor(TestTracer t, Document d1, Document d2, File f1, File f2) {
		tracer = t;
		this.f1 = f1;
		this.f2 = f2;
		this.d1 = d1 == null ? getDocument(f1) : d1;
		this.d2 = d2 == null ? getDocument(f2) : d2;
	}		
	
	private Document getDocument(File file) {
		if (file.exists()) {
			try {
				return XMLUtil.loadXml(file);
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		return null;
	}
	
	private void trace(String line) {
		tracer.trace(line);
	}
	
	private void analyze() {
		trace("OutputDiffAnalyzor.analyze ->");
		trace("f1: " + f1.getAbsolutePath());
		trace("f2: " + f2.getAbsolutePath());
		trace("");		
		analyze_();
		trace("OutputDiffAnalyzor.analyze <-");
	}
	
	private void analyze_() {
		if (! needToAnalyze) {
			return;
		}
		
						
		needToAnalyze = false;
	}

	public boolean compare() {
		analyze();
		return true;
	}
	


}