diff options
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/StatusHandlerManager.java')
| -rw-r--r-- | target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/StatusHandlerManager.java | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/StatusHandlerManager.java b/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/StatusHandlerManager.java new file mode 100644 index 000000000..89647f93d --- /dev/null +++ b/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/StatusHandlerManager.java @@ -0,0 +1,135 @@ +/*******************************************************************************
+ * 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.statushandler;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.tcf.te.runtime.statushandler.interfaces.IStatusHandler;
+import org.eclipse.tcf.te.runtime.statushandler.interfaces.IStatusHandlerConstants;
+import org.eclipse.tcf.te.runtime.statushandler.internal.StatusHandlerBinding;
+import org.eclipse.tcf.te.runtime.statushandler.internal.StatusHandlerBindingExtensionPointManager;
+import org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager;
+import org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy;
+
+/**
+ * Status handler manager implementation.
+ */
+public final class StatusHandlerManager extends AbstractExtensionPointManager<IStatusHandler> {
+
+ /*
+ * Thread save singleton instance creation.
+ */
+ private static class LazyInstance {
+ public static StatusHandlerManager instance = new StatusHandlerManager();
+ }
+
+ /**
+ * Constructor.
+ */
+ StatusHandlerManager() {
+ super();
+ }
+
+ /**
+ * Returns the singleton instance of the extension point manager.
+ */
+ public static StatusHandlerManager getInstance() {
+ return LazyInstance.instance;
+ }
+
+ /* (non-Javadoc)
+ * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getExtensionPointId()
+ */
+ @Override
+ protected String getExtensionPointId() {
+ return "org.eclipse.tcf.te.runtime.statushandler.handlers"; //$NON-NLS-1$
+ }
+
+ /* (non-Javadoc)
+ * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName()
+ */
+ @Override
+ protected String getConfigurationElementName() {
+ return "handler"; //$NON-NLS-1$
+ }
+
+ /**
+ * Returns the list of all contributed status handler.
+ *
+ * @param unique If <code>true</code>, the method returns new instances for each
+ * contributed status handler.
+ *
+ * @return The list of contributed status handler, or an empty array.
+ */
+ public IStatusHandler[] getHandlers(boolean unique) {
+ List<IStatusHandler> contributions = new ArrayList<IStatusHandler>();
+ Collection<ExecutableExtensionProxy<IStatusHandler>> statusHandlers = getExtensions().values();
+ for (ExecutableExtensionProxy<IStatusHandler> statusHandler : statusHandlers) {
+ IStatusHandler instance = unique ? statusHandler.newInstance() : statusHandler.getInstance();
+ if (instance != null && !contributions.contains(instance)) {
+ contributions.add(instance);
+ }
+ }
+
+ return contributions.toArray(new IStatusHandler[contributions.size()]);
+ }
+
+ /**
+ * Returns the status handler identified by its unique id. If no status
+ * handler with the specified id is registered, <code>null</code> is returned.
+ *
+ * @param id The unique id of the status handler or <code>null</code>
+ * @param unique If <code>true</code>, the method returns new instances of the status handler contribution.
+ *
+ * @return The status handler instance or <code>null</code>.
+ */
+ public IStatusHandler getHandler(String id, boolean unique) {
+ IStatusHandler contribution = null;
+ if (getExtensions().containsKey(id)) {
+ ExecutableExtensionProxy<IStatusHandler> proxy = getExtensions().get(id);
+ // Get the extension instance
+ contribution = unique ? proxy.newInstance() : proxy.getInstance();
+ }
+
+ return contribution;
+ }
+
+ /**
+ * Returns the status handler which are enabled for the given
+ * handler context.
+ *
+ * @param context The handler context. Must not be <code>null</code>.
+ * @return The list of status handler which are enabled or an empty array.
+ */
+ public IStatusHandler[] getHandler(Object context) {
+ Assert.isNotNull(context);
+
+ List<IStatusHandler> handlers = new ArrayList<IStatusHandler>();
+
+ // Get the list of applicable bindings
+ StatusHandlerBinding[] bindings = StatusHandlerBindingExtensionPointManager.getInstance().getApplicableBindings(context);
+ for (StatusHandlerBinding binding : bindings) {
+ IStatusHandler handler = getHandler(binding.getHandlerId(), false);
+ if (handler != null && !handlers.contains(handler)) handlers.add(handler);
+ }
+
+ // If no applicable status handler is found, always return the default status handler
+ if (handlers.isEmpty()) {
+ IStatusHandler handler = getHandler(IStatusHandlerConstants.ID_DEFAUT_HANDLER, false);
+ Assert.isNotNull(handler);
+ handlers.add(handler);
+ }
+
+ return handlers.toArray(new IStatusHandler[handlers.size()]);
+ }
+}
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