1 files changed, 83 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.runtime.stepper/src/org/eclipse/tcf/te/runtime/stepper/internal/extensions/StepExtensionPointManager.java b/target_explorer/plugins/org.eclipse.tcf.te.runtime.stepper/src/org/eclipse/tcf/te/runtime/stepper/internal/extensions/StepExtensionPointManager.java
new file mode 100644
index 000000000..55fb31408
--- /dev/null
+++ b/target_explorer/plugins/org.eclipse.tcf.te.runtime.stepper/src/org/eclipse/tcf/te/runtime/stepper/internal/extensions/StepExtensionPointManager.java
@@ -0,0 +1,83 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Wind River Systems, Inc. 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:
+ * Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tcf.te.runtime.stepper.internal.extensions;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.tcf.te.runtime.stepper.interfaces.IContextStep;
+import org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager;
+import org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy;
+
+/**
+ * Step extension point manager implementation.
+ */
+public class StepExtensionPointManager extends AbstractExtensionPointManager<IContextStep> {
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getExtensionPointId()
+	 */
+	@Override
+	protected String getExtensionPointId() {
+		return "org.eclipse.tcf.te.runtime.stepper.steps"; //$NON-NLS-1$
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName()
+	 */
+	@Override
+	protected String getConfigurationElementName() {
+		return "step"; //$NON-NLS-1$
+	}
+
+	/**
+	 * Returns the list of all contributed steps.
+	 *
+	 * @param unique If <code>true</code>, the method returns new instances for each
+	 *               contributed step.
+	 *
+	 * @return The list of contributed steps, or an empty array.
+	 */
+	public IContextStep[] getSteps(boolean unique) {
+		List<IContextStep> contributions = new ArrayList<IContextStep>();
+		Collection<ExecutableExtensionProxy<IContextStep>> delegates = getExtensions().values();
+		for (ExecutableExtensionProxy<IContextStep> delegate : delegates) {
+			IContextStep instance = unique ? delegate.newInstance() : delegate.getInstance();
+			if (instance != null && !contributions.contains(instance)) {
+				contributions.add(instance);
+			}
+		}
+
+		return contributions.toArray(new IContextStep[contributions.size()]);
+	}
+
+	/**
+	 * Returns the step identified by its unique id. If no step with the specified id is registered,
+	 * <code>null</code> is returned.
+	 *
+	 * @param id The unique id of the step or <code>null</code>
+	 * @param unique If <code>true</code>, the method returns new instances of the step contribution.
+	 *
+	 * @return The step instance or <code>null</code>.
+	 */
+	public IContextStep getStep(String id, boolean unique) {
+		Assert.isNotNull(id);
+		IContextStep contribution = null;
+		if (getExtensions().containsKey(id)) {
+			ExecutableExtensionProxy<IContextStep> proxy = getExtensions().get(id);
+			// Get the extension instance
+			contribution = unique ? proxy.newInstance() : proxy.getInstance();
+		}
+
+		return contribution;
+	}
+}