Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/CommandHelpers.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/CommandHelpers.java	(revision 240)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/CommandHelpers.java	(revision 240)
@@ -0,0 +1,54 @@
+package de.ugoe.cs.eventbench;
+
+import de.ugoe.cs.util.console.Console;
+
+/**
+ * <p>
+ * Helper class that collects methods that are often used by the commands.
+ * </p>
+ * 
+ * @author Steffen Herbold
+ * @version 1.0
+ */
+public class CommandHelpers {
+
+	/**
+	 * <p>
+	 * Prints a message to error stream of the {@link Console} that an object
+	 * has not been found in the storage.
+	 * </p>
+	 * 
+	 * @param objectName
+	 *            name of the object
+	 */
+	public static void objectNotFoundMessage(String objectName) {
+		Console.printerrln("Object " + objectName + " not found in storage.");
+	}
+
+	/**
+	 * <p>
+	 * Prints a message to the error stream of the {@link Console} that an
+	 * object is not of an expected type.
+	 * </p>
+	 * 
+	 * @param objectName
+	 *            name of the object
+	 * @param type
+	 *            expected type
+	 */
+	public static void objectNotType(String objectName, String type) {
+		Console.printerrln("Object " + objectName + "not of type " + type + ".");
+	}
+
+	/**
+	 * <p>
+	 * Prints a message to the trace stream of the {@link Console} that an
+	 * object in the storage has been overwritten.
+	 * </p>
+	 * 
+	 * @param objectName
+	 */
+	public static void dataOverwritten(String objectName) {
+		Console.traceln("Existing object " + objectName + " overwritten.");
+	}
+}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/AbstractTrainCommand.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/AbstractTrainCommand.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/AbstractTrainCommand.java	(revision 240)
@@ -5,4 +5,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.SequenceInstanceOf;
 import de.ugoe.cs.eventbench.data.Event;
@@ -73,11 +74,10 @@
 				sequencesName);
 		if (dataObject == null) {
-			Console.println("Object " + sequencesName
-					+ " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(sequencesName);
 			return;
 		}
 		if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
-			Console.println("Object " + sequencesName
-					+ "not of type Collection<List<Event<?>>>.");
+			CommandHelpers.objectNotType(sequencesName,
+					"Collection<List<Event<?>>>");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDcalcCoverage.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDcalcCoverage.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDcalcCoverage.java	(revision 240)
@@ -5,4 +5,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.SequenceInstanceOf;
 import de.ugoe.cs.eventbench.coverage.CoverageCalculatorObserved;
@@ -57,19 +58,18 @@
 				observedName);
 		if (dataObjectProcess == null) {
-			Console.printerrln("Model " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObjectProcess instanceof IStochasticProcess)) {
-			Console.printerrln("Object " + modelname
-					+ " not of type IStochasticProcess!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
 		if (dataObjectObserved == null) {
-			Console.printerrln("Observed sequences not found in storage.");
+			CommandHelpers.objectNotFoundMessage(observedName);
 			return;
 		}
 		if (!SequenceInstanceOf.isCollectionOfSequences(dataObjectObserved)) {
-			Console.printerrln("Object " + observedName
-					+ " of type Collection<List<Event<?>>>!");
+			CommandHelpers.objectNotType(observedName,
+					"Collection<List<Event<?>>>");
 			return;
 		}
@@ -97,11 +97,10 @@
 					.getData(sequenceName);
 			if (dataObjectSequences == null) {
-				Console.println("Sequences " + sequenceName
-						+ " not found in storage.");
+				CommandHelpers.objectNotFoundMessage(sequenceName);
 				return;
 			} else if (!SequenceInstanceOf
 					.isCollectionOfSequences(dataObjectSequences)) {
-				Console.printerrln("Object " + sequenceName
-						+ "not of type Collection<List<Event<?>!");
+				CommandHelpers.objectNotType(sequenceName,
+						"Collection<List<Event<?>>>");
 				return;
 			}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDcalcEntropy.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDcalcEntropy.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDcalcEntropy.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.FirstOrderMarkovModel;
@@ -47,10 +48,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + "not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof FirstOrderMarkovModel)) {
-			Console.println("Object " + modelname
-					+ " is not a first-order Markov model!");
+			CommandHelpers.objectNotType(modelname, "FirstOrderMarkovModel");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDdeleteObject.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDdeleteObject.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDdeleteObject.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.util.console.Command;
@@ -44,5 +45,5 @@
 				objectName);
 		if (!deleted) {
-			Console.println("Object not found in storage!");
+			CommandHelpers.objectNotFoundMessage(objectName);
 		}
 	}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateFixedLengthSequences.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateFixedLengthSequences.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateFixedLengthSequences.java	(revision 240)
@@ -11,4 +11,5 @@
 import java.util.Set;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.Event;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
@@ -59,8 +60,8 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		} else if (!(dataObject instanceof IStochasticProcess)) {
-			Console.println("Object " + modelname + " not of type MarkovModel!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
@@ -107,5 +108,5 @@
 		}
 		if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
-			Console.traceln("Old data \"" + sequencesName + "\" overwritten");
+			CommandHelpers.dataOverwritten(sequencesName);
 		}
 		Console.println("" + sequences.size() + " sequences generated");
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateRandomReplay.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateRandomReplay.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateRandomReplay.java	(revision 240)
@@ -6,4 +6,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.ReplayGenerator;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
@@ -58,9 +59,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof IStochasticProcess)) {
-			Console.println("Object " + modelname + " not of type MarkovModel!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateRandomSequences.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateRandomSequences.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateRandomSequences.java	(revision 240)
@@ -6,4 +6,5 @@
 import java.util.Set;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.data.Event;
@@ -57,9 +58,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof IStochasticProcess)) {
-			Console.println("Object " + modelname + " not of type MarkovModel!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
@@ -82,5 +83,5 @@
 		}
 		if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
-			Console.traceln("Old data \"" + sequencesName + "\" overwritten");
+			CommandHelpers.dataOverwritten(sequencesName);
 		}
 	}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateReplayfile.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateReplayfile.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDgenerateReplayfile.java	(revision 240)
@@ -5,4 +5,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.ReplayGenerator;
 import de.ugoe.cs.eventbench.SequenceInstanceOf;
@@ -53,11 +54,10 @@
 				sequencesName);
 		if (dataObject == null) {
-			Console.println("Object " + sequencesName
-					+ " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(sequencesName);
 			return;
 		}
 		if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
-			Console.println("Object " + sequencesName
-					+ "not of type Collection<List<Event<?>>>.");
+			CommandHelpers.objectNotType(sequencesName,
+					"Collection<List<Event<?>>>");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDlistSymbols.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDlistSymbols.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDlistSymbols.java	(revision 240)
@@ -5,4 +5,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.IStochasticProcess;
@@ -43,10 +44,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + "not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof IStochasticProcess)) {
-			Console.println("Object " + modelname
-					+ " is not a stochastic process!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDloadObject.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDloadObject.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDloadObject.java	(revision 240)
@@ -7,4 +7,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.util.console.Command;
@@ -52,5 +53,5 @@
 		}
 		if (GlobalDataContainer.getInstance().addData(objectName, data)) {
-			Console.traceln("Old data \"" + objectName + "\" overwritten");
+			CommandHelpers.dataOverwritten(objectName);
 		}
 	}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDmodelSize.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDmodelSize.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDmodelSize.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.IStochasticProcess;
@@ -36,10 +37,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.printerrln("No model with name " + modelname + "found");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof IStochasticProcess)) {
-			Console.printerrln("Object " + modelname
-					+ " not of type IStochasticProcess!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintDot.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintDot.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintDot.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.IDotCompatible;
@@ -48,10 +49,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + "not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof IDotCompatible)) {
-			Console.println("Object " + modelname
-					+ " does not implement IDotCompatible!");
+			CommandHelpers.objectNotType(modelname, "IDotCompatible");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintRandomSession.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintRandomSession.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintRandomSession.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.Event;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
@@ -48,9 +49,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof IStochasticProcess)) {
-			Console.println("Object " + modelname + " not of type MarkovModel!");
+			CommandHelpers.objectNotType(modelname, "IStochasticProcess");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintTrieDot.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintTrieDot.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDprintTrieDot.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.Trie;
@@ -49,9 +50,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Model " + modelname + "not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof TrieBasedModel)) {
-			Console.println("Object " + modelname + " is not a TrieBasedModel!");
+			CommandHelpers.objectNotType(modelname, "TrieBasedModel");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDsaveObject.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDsaveObject.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDsaveObject.java	(revision 240)
@@ -7,4 +7,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.util.console.Command;
@@ -41,5 +42,6 @@
 				objectName);
 		if (dataObject == null) {
-			Console.println("Object " + objectName + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(objectName);
+			return;
 		}
 
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDsequenceStatistics.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDsequenceStatistics.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDsequenceStatistics.java	(revision 240)
@@ -7,4 +7,5 @@
 import java.util.TreeMap;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.SequenceInstanceOf;
 import de.ugoe.cs.eventbench.data.Event;
@@ -41,11 +42,10 @@
 				sequencesName);
 		if (dataObject == null) {
-			Console.println("Object " + sequencesName
-					+ " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(sequencesName);
 			return;
 		}
 		if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
-			Console.println("Object " + sequencesName
-					+ "not of type Collection<List<Event<?>>>.");
+			CommandHelpers.objectNotType(sequencesName,
+					"Collection<List<Event<?>>>");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowMarkovModel.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowMarkovModel.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowMarkovModel.java	(revision 240)
@@ -11,4 +11,5 @@
 import org.apache.commons.collections15.Transformer;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.FirstOrderMarkovModel;
@@ -65,10 +66,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.println("Object " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof FirstOrderMarkovModel)) {
-			Console.println("Object " + modelname
-					+ "not of type FirstOrderMarkovModel.");
+			CommandHelpers.objectNotType(modelname, "FirstOrderMarkovModel");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowSequences.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowSequences.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowSequences.java	(revision 240)
@@ -7,4 +7,5 @@
 import org.eclipse.swt.widgets.Shell;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.SequenceInstanceOf;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
@@ -49,11 +50,10 @@
 				sequencesName);
 		if (dataObject == null) {
-			Console.println("Object " + sequencesName
-					+ " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(sequencesName);
 			return;
 		}
 		if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
-			Console.println("Object " + sequencesName
-					+ "not of type Collection<List<Event<?>>>.");
+			CommandHelpers.objectNotType(sequencesName,
+					"Collection<List<Event<?>>>");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowTimer.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowTimer.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowTimer.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.util.console.Command;
@@ -35,9 +36,9 @@
 				timerName);
 		if (dataObject == null) {
-			Console.printerrln("No object with name " + timerName + " found");
+			CommandHelpers.objectNotFoundMessage(timerName);
 			return;
 		}
 		if (!(dataObject instanceof Long)) {
-			Console.printerrln("Object " + timerName + " not of type Long!");
+			CommandHelpers.objectNotType(timerName, "Long");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowTrie.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowTrie.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDshowTrie.java	(revision 240)
@@ -11,4 +11,5 @@
 import org.apache.commons.collections15.Transformer;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.models.Trie;
@@ -62,10 +63,9 @@
 				.getData(modelname);
 		if (dataObject == null) {
-			Console.printerrln("Object " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof TrieBasedModel)) {
-			Console.printerr("Object " + modelname
-					+ " not of type TrieBasedModel.");
+			CommandHelpers.objectNotType(modelname, "TrieBasedModel");
 		}
 		TrieBasedModel model = (TrieBasedModel) dataObject;
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDstartTimer.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDstartTimer.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDstartTimer.java	(revision 240)
@@ -4,4 +4,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.util.console.Command;
@@ -33,5 +34,5 @@
 		Long time = System.currentTimeMillis();
 		if (GlobalDataContainer.getInstance().addData(timerName, time)) {
-			Console.traceln("Old data \"" + timerName + "\" overwritten");
+			CommandHelpers.dataOverwritten(timerName);
 		}
 	}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDupdateModel.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDupdateModel.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/commands/CMDupdateModel.java	(revision 240)
@@ -5,4 +5,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.SequenceInstanceOf;
 import de.ugoe.cs.eventbench.data.Event;
@@ -43,11 +44,10 @@
 				sequencesName);
 		if (dataObject == null) {
-			Console.println("Object " + sequencesName
-					+ " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(sequencesName);
 			return;
 		}
 		if (!SequenceInstanceOf.isCollectionOfSequences(dataObject)) {
-			Console.println("Object " + sequencesName
-					+ "not of type Collection<List<Event<?>>>.");
+			CommandHelpers.objectNotType(sequencesName,
+					"Collection<List<Event<?>>>");
 			return;
 		}
@@ -56,10 +56,9 @@
 		dataObject = GlobalDataContainer.getInstance().getData(modelname);
 		if (dataObject == null) {
-			Console.println("Object " + modelname + " not found in storage.");
+			CommandHelpers.objectNotFoundMessage(modelname);
 			return;
 		}
 		if (!(dataObject instanceof TrieBasedModel)) {
-			Console.println("Object " + modelname
-					+ " not of type TrieBasedModel");
+			CommandHelpers.objectNotType(modelname, "TrieBasedModel");
 			return;
 		}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/web/commands/CMDloadSessionsFromClickstream.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/web/commands/CMDloadSessionsFromClickstream.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/web/commands/CMDloadSessionsFromClickstream.java	(revision 240)
@@ -8,4 +8,5 @@
 import java.util.List;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.web.WeblogParser;
@@ -88,5 +89,5 @@
 		if (GlobalDataContainer.getInstance().addData(sequencesName,
 				parser.getSequences())) {
-			Console.traceln("Old data \"" + sequencesName + "\" overwritten");
+			CommandHelpers.dataOverwritten(sequencesName);
 		}
 		if (generateFrequentUsers) {
@@ -95,9 +96,8 @@
 					.getFrequentUserSequences();
 			for (int i = 0; i < frequentUserIDs.size(); i++) {
-				if (GlobalDataContainer.getInstance().addData(
-						sequencesName + "_" + frequentUserIDs.get(i),
+				String seqName = sequencesName + "_" + frequentUserIDs.get(i);
+				if (GlobalDataContainer.getInstance().addData(seqName,
 						frequentUserSessions.get(i))) {
-					Console.traceln("Old data \"" + sequencesName
-							+ "\" overwritten");
+					CommandHelpers.dataOverwritten(seqName);
 				}
 			}
Index: trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/windows/commands/CMDparseXML.java
===================================================================
--- trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/windows/commands/CMDparseXML.java	(revision 239)
+++ trunk/EventBenchConsole/src/de/ugoe/cs/eventbench/windows/commands/CMDparseXML.java	(revision 240)
@@ -6,4 +6,5 @@
 import java.util.SortedSet;
 
+import de.ugoe.cs.eventbench.CommandHelpers;
 import de.ugoe.cs.eventbench.data.GlobalDataContainer;
 import de.ugoe.cs.eventbench.windows.LogParser;
@@ -65,8 +66,9 @@
 
 		if (GlobalDataContainer.getInstance().addData(sequencesName, sequences)) {
-			Console.traceln("Old data \"" + sequencesName + "\" overwritten");
+			CommandHelpers.dataOverwritten(sequencesName);
 		}
-		if( GlobalDataContainer.getInstance().addData(sequencesName+"_targets", targets)) {
-			Console.traceln("Old data \"" + sequencesName+"_targets" + "\" overwritten");
+		if (GlobalDataContainer.getInstance().addData(
+				sequencesName + "_targets", targets)) {
+			CommandHelpers.dataOverwritten(sequencesName + "_targets");
 		}
 	}
