PropertiesSeries.java

/*
 * Copyright (c) 2008-2009 Yahoo! Inc.  All rights reserved.
 * The copyrights to the contents of this file are licensed under the MIT License (http://www.opensource.org/licenses/mit-license.php)
 */


package hudson.plugins.plot;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.util.Properties;

import hudson.FilePath;
import org.kohsuke.stapler.DataBoundConstructor;

/**
 * @author Allen Reese
 *
 */
public class PropertiesSeries extends Series {
    @DataBoundConstructor
    public PropertiesSeries(String file, String label) {
    	super(file, label, "properties");
    }

    /**
     * Load the series from a properties file.
     */
	@Override
	public PlotPoint[] loadSeries(FilePath workspaceRootDir, PrintStream logger) {
        InputStream in = null;
        FilePath[] seriesFiles = null;
        
        try {
            seriesFiles = workspaceRootDir.list(getFile());
        } catch (Exception e) {
            logger.println("Exception trying to retrieve series files: " + e);
            return null;
        }
        
        if (seriesFiles != null && seriesFiles.length < 1) {
            logger.println("No plot data file found: " + getFile());
            return null;
        }
        
        try {
            in = seriesFiles[0].read();
            logger.println("Saving plot series data from: " + seriesFiles[0]);
            Properties properties = new Properties();
            properties.load(in);
            String yvalue = properties.getProperty("YVALUE");
            String url = properties.getProperty("URL","");
            if (yvalue == null || url == null)
            {
            	logger.println("Not creating point with null values: y=" + yvalue + " label=" + getLabel() + " url="+url);
            	return null;
            }
            
    		return new PlotPoint[]{new PlotPoint(yvalue,url,getLabel())};
        } catch (Exception e) {
            logger.println("Exception reading plot series data from: " + seriesFiles[0]);
            return null;
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException ignore) {
                    //ignore
                }
            }
        }
    }
}