three henshin runtime classes added

diff --git a/org.eclipse.emf.refactor.refactoring.henshin/META-INF/MANIFEST.MF b/org.eclipse.emf.refactor.refactoring.henshin/META-INF/MANIFEST.MF
index 88f3160..4e32df7 100644
--- a/org.eclipse.emf.refactor.refactoring.henshin/META-INF/MANIFEST.MF
+++ b/org.eclipse.emf.refactor.refactoring.henshin/META-INF/MANIFEST.MF

@@ -7,6 +7,8 @@
 Require-Bundle: org.eclipse.ui,
  org.eclipse.core.runtime,
  org.eclipse.emf.refactor.refactoring;bundle-version="0.7.0",
- org.eclipse.emf.refactor.refactoring.generator;bundle-version="0.7.0"
+ org.eclipse.emf.refactor.refactoring.generator;bundle-version="0.7.0",
+ org.eclipse.emf.refactor.refactoring.runtime;bundle-version="0.7.0",
+ org.eclipse.emf.henshin.interpreter;bundle-version="0.9.4"
 Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6

diff --git a/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/CheckConditionsCommand.java b/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/CheckConditionsCommand.java
new file mode 100644
index 0000000..01384b4
--- /dev/null
+++ b/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/CheckConditionsCommand.java

@@ -0,0 +1,104 @@
+/*******************************************************************************
+ * Copyright (c) Philipps University of Marburg. 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:
+ *     Philipps University of Marburg - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.emf.refactor.refactoring.henshin.runtime;
+
+import java.util.List;
+
+import org.eclipse.emf.common.command.AbstractCommand;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.change.util.ChangeRecorder;
+import org.eclipse.emf.refactor.refactoring.henshin.interfaces.IHenshinInformation;
+
+/**
+ * Class used for checking initial an final conditions of
+ * a EMF model refactoring using Henshin transformations.
+ * @generated NOT
+ * @author Florian Mantz
+ */
+public class CheckConditionsCommand extends AbstractCommand {
+	
+	/**
+	 *  Root of the corresponding EMF model.
+	 */
+	private final EObject root;
+	
+	/**
+	 * Corresponding HenshinInformation object providing the
+	 * name of the Henshin transformation to be used. 
+	 */
+	private final IHenshinInformation henshinInformation;
+	
+	/**
+	 * List of messages indication errors which occur during
+	 * conditions checking.
+	 */
+	private List<String> messages;
+	
+	/**
+	 * Default constructor using the corresponding HenshinInformation
+	 * object and the root of the corresponding EMF model.
+	 * @param henshinInformation Corresponding HenshinInformation object 
+	 * providing the name of the Henshin transformation to be used. 
+	 * @param root Root of the corresponding EMF model.
+	 */
+	public CheckConditionsCommand
+			(IHenshinInformation henshinInformation, EObject root) {
+		super();
+		this.root = root; 
+		this.henshinInformation = henshinInformation;
+	}
+	
+	/**
+	 * Gets a list of messages indicating errors which occur during
+	 * conditions checking.
+	 * @return List of messages indicating errors which occur during
+	 * conditions checking.
+	 */
+	public List<String> getMessages() {
+		return messages;
+	}
+
+	/**
+	 * @see org.eclipse.emf.common.command.Command#execute()
+	 */
+	@Override
+	public void execute() {
+		//Start Recorder:
+		ChangeRecorder changeRecorder = new ChangeRecorder(root);		
+		this.messages = HenshinRunner.checkConditions
+							(this.henshinInformation, this.root);		
+		//Undo
+		changeRecorder.endRecording().applyAndReverse();	
+	}
+
+	/**
+	 * @see org.eclipse.emf.common.command.Command#redo()
+	 */
+	@Override
+	public void redo() {
+		//do nothing
+	}
+	
+	/**
+	 * @see org.eclipse.emf.common.command.AbstractCommand#canExecute()
+	 */
+	public boolean canExecute() {
+		return true;
+	}
+
+	/**
+	 * @see org.eclipse.emf.common.command.AbstractCommand#canUndo()
+	 */
+	public boolean canUndo() {
+		return false;//Important
+	}
+
+}

diff --git a/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/HenshinApplicationMonitor.java b/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/HenshinApplicationMonitor.java
new file mode 100644
index 0000000..70b26a2
--- /dev/null
+++ b/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/HenshinApplicationMonitor.java

@@ -0,0 +1,83 @@
+package org.eclipse.emf.refactor.refactoring.henshin.runtime;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.emf.henshin.interpreter.ApplicationMonitor;
+import org.eclipse.emf.henshin.interpreter.RuleApplication;
+import org.eclipse.emf.henshin.interpreter.UnitApplication;
+
+public class HenshinApplicationMonitor implements ApplicationMonitor {
+	
+	private List<RuleApplication> appliedRules = new ArrayList<RuleApplication>(5);
+	
+	// Canceled flag:
+	protected boolean canceled = false;
+	
+	// Undoing flag:
+	protected boolean undo = false;
+	
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.emf.henshin.interpreter.ApplicationMonitor#isCanceled()
+	 */
+	@Override
+	public boolean isCanceled() {
+		return canceled;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.emf.henshin.interpreter.ApplicationMonitor#isUndo()
+	 */
+	@Override
+	public boolean isUndo() {
+		return undo;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.emf.henshin.interpreter.ApplicationMonitor#cancel()
+	 */
+	@Override
+	public void cancel() {
+		canceled = true;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.emf.henshin.interpreter.ApplicationMonitor#cancelAndUndo()
+	 */
+	@Override
+	public void cancelAndUndo() {
+		canceled = true;
+		undo = true;
+	}
+	
+	@Override
+	public void notifyExecute(UnitApplication application, boolean success) {
+		if (success && application instanceof RuleApplication && application.getUnit().getDescription() != null && !application.getUnit().getDescription().isEmpty())
+			appliedRules.add((RuleApplication) application);
+	}
+
+	@Override
+	public void notifyUndo(UnitApplication application, boolean succeess) {
+		// do nothing
+	}
+
+	@Override
+	public void notifyRedo(UnitApplication application, boolean success) {
+		// do nothing
+	}
+	
+	/**
+	 * Returns the applied UnitApplications where:
+	 * (a) the execution was successful
+	 * (b) the description is not empty
+	 * @return
+	 */
+	public List<RuleApplication> getAppliedRules() {
+		return appliedRules;
+	}
+	
+}

diff --git a/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/HenshinInformationAdapter.java b/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/HenshinInformationAdapter.java
new file mode 100644
index 0000000..6d86352
--- /dev/null
+++ b/org.eclipse.emf.refactor.refactoring.henshin/src/org/eclipse/emf/refactor/refactoring/henshin/runtime/HenshinInformationAdapter.java

@@ -0,0 +1,64 @@
+/*******************************************************************************
+ * Copyright (c) Philipps University of Marburg. 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:
+ *     Philipps University of Marburg - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.emf.refactor.refactoring.henshin.runtime;
+
+import org.eclipse.emf.refactor.refactoring.henshin.interfaces.IHenshinInformation;
+
+/**
+ * Adapter implementation of the IHenshinInformation interface used 
+ * for specifying a Henshin file that shall be used by a specific 
+ * EMF model refactoring.
+ * @generated NOT
+ * @author Thorsten Arendt
+ */
+public abstract class HenshinInformationAdapter implements IHenshinInformation {
+	
+	private final String UNSPECIFIED = "unspecified";
+	
+	/**
+	 * Default name of the Henshin transformation file that shall 
+	 * be used by a specific EMF model refactoring.
+	 */
+	protected String transformationFileName = UNSPECIFIED;
+
+	/**
+	 * Sets the the name of the Henshin transformation file that 
+	 * shall be used by a specific EMF model refactoring.
+	 * @param transformationFileName Name of the Henshin transformation 
+	 * file that shall be used by a specific EMF model refactoring.
+	 */
+	public void setTransformationFileName(String transformationFileName) {
+		if (transformationFileName == null 
+				|| transformationFileName.isEmpty()){
+			this.transformationFileName = UNSPECIFIED;
+		}
+		this.transformationFileName = transformationFileName;
+	}
+
+	/**
+	 * @see org.eclipse.emf.refactor.henshin.core.IHenshinInformation#
+	 * getTransformationFileName()
+	 */
+	@Override
+	public String getTransformationFileName() {
+		return this.transformationFileName;
+	}
+
+	/**
+	 * @see org.eclipse.emf.refactor.henshin.core.IHenshinInformation#
+	 * isTransformationFileSpecified()
+	 */
+	@Override
+	public Boolean isTransformationFileSpecified() {
+		return !this.transformationFileName.endsWith(UNSPECIFIED);
+	}
+
+}