sourcedplotelement.java

jrobin,使用纯java实现的RRD数据库,使用RRD数据库来统计数据.

/* ============================================================
 * JRobin : Pure java implementation of RRDTool's functionality
 * ============================================================
 *
 * Project Info:  http://www.jrobin.org
 * Project Lead:  Sasa Markovic ([e-mail])
 *
 * Developers:    Sasa Markovic ([e-mail])
 *
 *
 * (C) Copyright 2003-2005, by Sasa Markovic.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 */
package org.jrobin.graph;

import org.jrobin.core.RrdException;
import org.jrobin.core.Util;
import org.jrobin.data.DataProcessor;

import java.awt.*;

class SourcedPlotElement extends PlotElement {
	final String srcName;
	double[] values;

	SourcedPlotElement(String srcName, Paint color) {
		super(color);
		this.srcName = srcName;
	}

	void assignValues(DataProcessor dproc) throws RrdException {
		values = dproc.getValues(srcName);
	}

	double[] getValues() {
		return values;
	}

	double getMinValue() {
		return Util.min(values);
	}

	double getMaxValue() {
		return Util.max(values);
	}
}