Added Nullcheck in case there doesn't exist an Execution Context (#1401)

plugins/org.yakindu.sct.simulation.core/src/org/yakindu/sct/simulation/core/debugmodel/SCTDebugTarget.java

@@ -1,222 +1,223 @@
-/**
- * Copyright (c) 2011 committers of YAKINDU and others.
- * 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:
- * 	committers of YAKINDU - initial API and implementation
- * 
- */
-package org.yakindu.sct.simulation.core.debugmodel;
-
-import org.eclipse.core.resources.IMarkerDelta;
-import org.eclipse.core.runtime.Assert;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.debug.core.DebugEvent;
-import org.eclipse.debug.core.DebugException;
-import org.eclipse.debug.core.DebugPlugin;
-import org.eclipse.debug.core.ILaunch;
-import org.eclipse.debug.core.model.IBreakpoint;
-import org.eclipse.debug.core.model.IDebugTarget;
-import org.eclipse.debug.core.model.IMemoryBlock;
-import org.eclipse.debug.core.model.IProcess;
-import org.eclipse.debug.core.model.IStep;
-import org.eclipse.debug.core.model.IThread;
-import org.eclipse.emf.common.notify.impl.AdapterImpl;
-import org.eclipse.emf.ecore.EObject;
-import org.yakindu.base.base.NamedElement;
-import org.yakindu.sct.simulation.core.engine.IExecutionControl;
-import org.yakindu.sct.simulation.core.engine.ISimulationEngine;
-import org.yakindu.sct.simulation.core.sruntime.ExecutionContext;
-
-/**
- * 
- * @author andreas muelder - Initial contribution and API
- * @author axel terfloth - extensions
- * 
- */
-public class SCTDebugTarget extends SCTDebugElement implements IDebugTarget, IStep {
-
-	private ILaunch launch;
-
-	private boolean stepping = false;
-	private boolean terminated = false;
-	private boolean suspended = false;
-
-	private final NamedElement element;
-
-	protected ISimulationEngine engine;
-
-	private IExecutionControl executionControl;
-
-	private AdapterImpl updater;
-
-	public SCTDebugTarget(ILaunch launch, NamedElement element, ISimulationEngine engine) throws CoreException {
-		super(null, element.eResource().getURI().toPlatformString(true));
-		Assert.isNotNull(element);
-		this.launch = launch;
-		this.element = element;
-		this.engine = engine;
-	}
-
-	public void init() {
-		executionControl = engine.getExecutionControl();
-		executionControl.init();
-		DebugPlugin.getDefault().getBreakpointManager().addBreakpointListener(this);
-	}
-
-	public void start() {
-		executionControl.start();
-	}
-
-	public IProcess getProcess() {
-		return null;
-	}
-
-	public void stepOver() {
-		fireEvent(new DebugEvent(getDebugTarget(), DebugEvent.STEP_OVER));
-		engine.getExecutionControl().stepForward();
-	}
-
-	public synchronized IThread[] getThreads() throws DebugException {
-		return new IThread[] {};
-	}
-
-	public boolean hasThreads() throws DebugException {
-		return false;
-	}
-
-	public String getName() throws DebugException {
-		return element.getName();
-	}
-
-	public boolean supportsBreakpoint(IBreakpoint breakpoint) {
-		return breakpoint.getModelIdentifier().startsWith("com.yakindu.sct.simulation");
-	}
-
-	public boolean canTerminate() {
-		return !terminated;
-	}
-
-	public boolean isTerminated() {
-		return terminated;
-	}
-
-	public void terminate() throws DebugException {
-		fireEvent(new DebugEvent(getDebugTarget(), DebugEvent.TERMINATE));
-		terminated = true;
-		executionControl.terminate();
-		engine.getExecutionContext().eAdapters().remove(updater);
-	}
-
-	public boolean canResume() {
-		return suspended && !terminated;
-	}
-
-	public boolean canSuspend() {
-		return !suspended && !terminated;
-	}
-
-	public boolean isSuspended() {
-		return suspended;
-	}
-
-	public void resume() throws DebugException {
-		fireEvent(new DebugEvent(this, DebugEvent.RESUME));
-		fireChangeEvent(DebugEvent.CONTENT);
-		suspended = false;
-		executionControl.resume();
-	}
-
-	public void suspend() throws DebugException {
-		fireEvent(new DebugEvent(this, DebugEvent.SUSPEND));
-		fireChangeEvent(DebugEvent.CONTENT);
-		suspended = true;
-		executionControl.suspend();
-	}
-
-	public void breakpointAdded(IBreakpoint breakpoint) {
-	}
-
-	public void breakpointRemoved(IBreakpoint breakpoint, IMarkerDelta delta) {
-	}
-
-	public void breakpointChanged(IBreakpoint breakpoint, IMarkerDelta delta) {
-	}
-
-	public boolean canDisconnect() {
-		return false;
-	}
-
-	public void disconnect() throws DebugException {
-
-	}
-
-	public boolean isDisconnected() {
-		return false;
-	}
-
-	public boolean supportsStorageRetrieval() {
-		return false;
-	}
-
-	public IMemoryBlock getMemoryBlock(long startAddress, long length) throws DebugException {
-		return null;
-	}
-
-	public ILaunch getLaunch() {
-		return launch;
-	}
-
-	public IDebugTarget getDebugTarget() {
-		return this;
-	}
-
-	@SuppressWarnings("unchecked")
-	public Object getAdapter(@SuppressWarnings("rawtypes") Class adapter) {
-		if (adapter == ISimulationEngine.class)
-			return engine;
-		if (adapter == IExecutionControl.class) {
-			return engine.getExecutionControl();
-		}
-		if (adapter == ExecutionContext.class) {
-			return engine.getExecutionContext();
-		}
-		if (adapter == EObject.class) {
-			return element;
-		}
-		return super.getAdapter(adapter);
-	}
-
-	public boolean canStepOver() {
-		return isSuspended() && !isTerminated();
-	}
-
-	public boolean isStepping() {
-		return stepping;
-	}
-
-	public ISimulationEngine getSimulationEngine() {
-		return engine;
-	}
-
-	public boolean canStepInto() {
-		// Not used
-		return false;
-	}
-
-	public boolean canStepReturn() {
-		// Not used
-		return false;
-	}
-
-	public void stepInto() throws DebugException {
-
-	}
-
-	public void stepReturn() throws DebugException {
-
-	}
-
-}
+/**
+ * Copyright (c) 2011 committers of YAKINDU and others.
+ * 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:
+ * 	committers of YAKINDU - initial API and implementation
+ * 
+ */
+package org.yakindu.sct.simulation.core.debugmodel;
+
+import org.eclipse.core.resources.IMarkerDelta;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.debug.core.DebugEvent;
+import org.eclipse.debug.core.DebugException;
+import org.eclipse.debug.core.DebugPlugin;
+import org.eclipse.debug.core.ILaunch;
+import org.eclipse.debug.core.model.IBreakpoint;
+import org.eclipse.debug.core.model.IDebugTarget;
+import org.eclipse.debug.core.model.IMemoryBlock;
+import org.eclipse.debug.core.model.IProcess;
+import org.eclipse.debug.core.model.IStep;
+import org.eclipse.debug.core.model.IThread;
+import org.eclipse.emf.common.notify.impl.AdapterImpl;
+import org.eclipse.emf.ecore.EObject;
+import org.yakindu.base.base.NamedElement;
+import org.yakindu.sct.simulation.core.engine.IExecutionControl;
+import org.yakindu.sct.simulation.core.engine.ISimulationEngine;
+import org.yakindu.sct.simulation.core.sruntime.ExecutionContext;
+
+/**
+ * 
+ * @author andreas muelder - Initial contribution and API
+ * @author axel terfloth - extensions
+ * 
+ */
+public class SCTDebugTarget extends SCTDebugElement implements IDebugTarget, IStep {
+
+	private ILaunch launch;
+
+	private boolean stepping = false;
+	private boolean terminated = false;
+	private boolean suspended = false;
+
+	private final NamedElement element;
+
+	protected ISimulationEngine engine;
+
+	private IExecutionControl executionControl;
+
+	private AdapterImpl updater;
+
+	public SCTDebugTarget(ILaunch launch, NamedElement element, ISimulationEngine engine) throws CoreException {
+		super(null, element.eResource().getURI().toPlatformString(true));
+		Assert.isNotNull(element);
+		this.launch = launch;
+		this.element = element;
+		this.engine = engine;
+	}
+
+	public void init() {
+		executionControl = engine.getExecutionControl();
+		executionControl.init();
+		DebugPlugin.getDefault().getBreakpointManager().addBreakpointListener(this);
+	}
+
+	public void start() {
+		executionControl.start();
+	}
+
+	public IProcess getProcess() {
+		return null;
+	}
+
+	public void stepOver() {
+		fireEvent(new DebugEvent(getDebugTarget(), DebugEvent.STEP_OVER));
+		engine.getExecutionControl().stepForward();
+	}
+
+	public synchronized IThread[] getThreads() throws DebugException {
+		return new IThread[] {};
+	}
+
+	public boolean hasThreads() throws DebugException {
+		return false;
+	}
+
+	public String getName() throws DebugException {
+		return element.getName();
+	}
+
+	public boolean supportsBreakpoint(IBreakpoint breakpoint) {
+		return breakpoint.getModelIdentifier().startsWith("com.yakindu.sct.simulation");
+	}
+
+	public boolean canTerminate() {
+		return !terminated;
+	}
+
+	public boolean isTerminated() {
+		return terminated;
+	}
+
+	public void terminate() throws DebugException {
+		fireEvent(new DebugEvent(getDebugTarget(), DebugEvent.TERMINATE));
+		terminated = true;
+		executionControl.terminate();
+		if(engine.getExecutionContext() != null)
+			engine.getExecutionContext().eAdapters().remove(updater);
+	}
+
+	public boolean canResume() {
+		return suspended && !terminated;
+	}
+
+	public boolean canSuspend() {
+		return !suspended && !terminated;
+	}
+
+	public boolean isSuspended() {
+		return suspended;
+	}
+
+	public void resume() throws DebugException {
+		fireEvent(new DebugEvent(this, DebugEvent.RESUME));
+		fireChangeEvent(DebugEvent.CONTENT);
+		suspended = false;
+		executionControl.resume();
+	}
+
+	public void suspend() throws DebugException {
+		fireEvent(new DebugEvent(this, DebugEvent.SUSPEND));
+		fireChangeEvent(DebugEvent.CONTENT);
+		suspended = true;
+		executionControl.suspend();
+	}
+
+	public void breakpointAdded(IBreakpoint breakpoint) {
+	}
+
+	public void breakpointRemoved(IBreakpoint breakpoint, IMarkerDelta delta) {
+	}
+
+	public void breakpointChanged(IBreakpoint breakpoint, IMarkerDelta delta) {
+	}
+
+	public boolean canDisconnect() {
+		return false;
+	}
+
+	public void disconnect() throws DebugException {
+
+	}
+
+	public boolean isDisconnected() {
+		return false;
+	}
+
+	public boolean supportsStorageRetrieval() {
+		return false;
+	}
+
+	public IMemoryBlock getMemoryBlock(long startAddress, long length) throws DebugException {
+		return null;
+	}
+
+	public ILaunch getLaunch() {
+		return launch;
+	}
+
+	public IDebugTarget getDebugTarget() {
+		return this;
+	}
+
+	@SuppressWarnings("unchecked")
+	public Object getAdapter(@SuppressWarnings("rawtypes") Class adapter) {
+		if (adapter == ISimulationEngine.class)
+			return engine;
+		if (adapter == IExecutionControl.class) {
+			return engine.getExecutionControl();
+		}
+		if (adapter == ExecutionContext.class) {
+			return engine.getExecutionContext();
+		}
+		if (adapter == EObject.class) {
+			return element;
+		}
+		return super.getAdapter(adapter);
+	}
+
+	public boolean canStepOver() {
+		return isSuspended() && !isTerminated();
+	}
+
+	public boolean isStepping() {
+		return stepping;
+	}
+
+	public ISimulationEngine getSimulationEngine() {
+		return engine;
+	}
+
+	public boolean canStepInto() {
+		// Not used
+		return false;
+	}
+
+	public boolean canStepReturn() {
+		// Not used
+		return false;
+	}
+
+	public void stepInto() throws DebugException {
+
+	}
+
+	public void stepReturn() throws DebugException {
+
+	}
+
+}