diff -r 000000000000 -r 639991d0808a java/cewolf-1.0/src/main/java/de/laures/cewolf/dp/MovingAverageDatasetProducer.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/java/cewolf-1.0/src/main/java/de/laures/cewolf/dp/MovingAverageDatasetProducer.java	Sat Feb 28 21:31:02 2009 +0100
@@ -0,0 +1,60 @@
+package de.laures.cewolf.dp;
+
+import java.io.Serializable;
+import java.util.Date;
+import java.util.Map;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.jfree.data.general.Dataset;
+import org.jfree.data.time.MovingAverage;
+import org.jfree.data.xy.XYDataset;
+
+import de.laures.cewolf.DatasetProduceException;
+import de.laures.cewolf.DatasetProducer;
+
+/**
+ * @author guido
+ *
+ * To change this generated comment edit the template variable "typecomment":
+ * Window>Preferences>Java>Templates.
+ * To enable and disable the creation of type comments go to
+ * Window>Preferences>Java>Code Generation.
+ */
+public class MovingAverageDatasetProducer implements DatasetProducer, Serializable {
+	
+	private static final Log log = LogFactory.getLog(MovingAverageDatasetProducer.class);
+
+	/**
+	 * @see de.laures.cewolf.DatasetProducer#produceDataset(Map)
+	 */
+	public Object produceDataset(Map params) throws DatasetProduceException {
+		log.debug(params);
+		DatasetProducer datasetProducer = (DatasetProducer)params.get("producer");
+		log.debug(datasetProducer);
+		Dataset dataset = (Dataset)datasetProducer.produceDataset(params);
+		String suffix = (String)params.get("suffix");
+		int period = ((Integer)params.get("period")).intValue();
+		int skip = ((Integer)params.get("skip")).intValue();
+		if(dataset instanceof XYDataset){
+	        return MovingAverage.createMovingAverage((XYDataset)dataset, suffix, period, skip);
+		} else {
+			throw new DatasetProduceException("moving average only supported for XYDatasets");
+		}
+	}
+
+	/**
+	 * @see de.laures.cewolf.DatasetProducer#hasExpired(Map, Date)
+	 */
+	public boolean hasExpired(Map params, Date since) {
+		return true;
+	}
+
+	/**
+	 * @see de.laures.cewolf.DatasetProducer#getProducerId()
+	 */
+	public String getProducerId() {
+		return getClass().getName();
+	}
+
+}