diff options
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler')
2 files changed, 177 insertions, 174 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/schema/bindings.exsd b/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/schema/bindings.exsd index fe0131db8..cb8332335 100644 --- a/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/schema/bindings.exsd +++ b/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/schema/bindings.exsd @@ -8,7 +8,7 @@ <documentation>
This extension point is used to declare the status handler bindings.
<p>
-<b>Note:</b> For the enablement expression evaluation, note that only the default variable is set and it is non-iterable. The default variable is set to the handler context, which is typically the object calling the status handler.
+<b>Note:</b> For the enablement expression evaluation, note that only the default variable and "context" is set and it is non-iterable. The default variable and "context" is set to the handler context, which is typically the object calling the status handler.
</documentation>
</annotation>
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/internal/StatusHandlerBindingExtensionPointManager.java b/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/internal/StatusHandlerBindingExtensionPointManager.java index f93a3991d..8d80604ab 100644 --- a/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/internal/StatusHandlerBindingExtensionPointManager.java +++ b/target_explorer/plugins/org.eclipse.tcf.te.runtime.statushandler/src/org/eclipse/tcf/te/runtime/statushandler/internal/StatusHandlerBindingExtensionPointManager.java @@ -1,173 +1,176 @@ -/******************************************************************************* - * 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.internal; - -import java.util.ArrayList; -import java.util.Collection; -import java.util.List; - -import org.eclipse.core.expressions.EvaluationContext; -import org.eclipse.core.expressions.EvaluationResult; -import org.eclipse.core.expressions.Expression; -import org.eclipse.core.runtime.CoreException; -import org.eclipse.core.runtime.IConfigurationElement; -import org.eclipse.core.runtime.IStatus; -import org.eclipse.core.runtime.Platform; -import org.eclipse.core.runtime.Status; -import org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager; -import org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy; -import org.eclipse.tcf.te.runtime.statushandler.activator.CoreBundleActivator; - - -/** - * Status handler binding extension point manager implementation. - */ -public class StatusHandlerBindingExtensionPointManager extends AbstractExtensionPointManager<StatusHandlerBinding> { - - /* - * Thread save singleton instance creation. - */ - private static class LazyInstance { - public static StatusHandlerBindingExtensionPointManager instance = new StatusHandlerBindingExtensionPointManager(); - } - - /** - * Constructor. - */ - StatusHandlerBindingExtensionPointManager() { - super(); - } - - /** - * Returns the singleton instance of the extension point manager. - */ - public static StatusHandlerBindingExtensionPointManager 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.bindings"; //$NON-NLS-1$ - } - - /* (non-Javadoc) - * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName() - */ - @Override - protected String getConfigurationElementName() { - return "binding"; //$NON-NLS-1$ - } - - /* (non-Javadoc) - * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#doCreateExtensionProxy(org.eclipse.core.runtime.IConfigurationElement) - */ - @Override - protected ExecutableExtensionProxy<StatusHandlerBinding> doCreateExtensionProxy(IConfigurationElement element) throws CoreException { - return new ExecutableExtensionProxy<StatusHandlerBinding>(element) { - /* (non-Javadoc) - * @see org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy#newInstance() - */ - @Override - public StatusHandlerBinding newInstance() { - StatusHandlerBinding instance = new StatusHandlerBinding(); - try { - instance.setInitializationData(getConfigurationElement(), null, null); - } catch (CoreException e) { - IStatus status = new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(), - e.getLocalizedMessage(), e); - Platform.getLog(CoreBundleActivator.getContext().getBundle()).log(status); - } - return instance; - } - }; - } - - /** - * Returns the applicable status handler bindings for the given handler context. - * - * @param context The handler context or <code>null</code>. - * @return The list of applicable editor page bindings or an empty array. - */ - public StatusHandlerBinding[] getApplicableBindings(Object context) { - List<StatusHandlerBinding> applicable = new ArrayList<StatusHandlerBinding>(); - - for (StatusHandlerBinding binding : getBindings()) { - Expression enablement = binding.getEnablement(); - - // The binding is applicable by default if no expression is specified. - boolean isApplicable = enablement == null; - - if (enablement != null) { - if (context != null) { - // Set the default variable to the handler context. - EvaluationContext evalContext = new EvaluationContext(null, context); - // Allow plugin activation - evalContext.setAllowPluginActivation(true); - // Evaluate the expression - try { - isApplicable = enablement.evaluate(evalContext).equals(EvaluationResult.TRUE); - } catch (CoreException e) { - IStatus status = new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(), - e.getLocalizedMessage(), e); - Platform.getLog(CoreBundleActivator.getContext().getBundle()).log(status); - } - } else { - // The enablement is false by definition if no handler context is given. - isApplicable = false; - } - } - - // Add the binding if applicable - if (isApplicable) applicable.add(binding); - } - - return applicable.toArray(new StatusHandlerBinding[applicable.size()]); - } - - /** - * Returns the list of all contributed status handler bindings. - * - * @return The list of contributed status handler bindings, or an empty array. - */ - public StatusHandlerBinding[] getBindings() { - List<StatusHandlerBinding> contributions = new ArrayList<StatusHandlerBinding>(); - Collection<ExecutableExtensionProxy<StatusHandlerBinding>> statusHandlerBindings = getExtensions().values(); - for (ExecutableExtensionProxy<StatusHandlerBinding> statusHandlerBinding : statusHandlerBindings) { - StatusHandlerBinding instance = statusHandlerBinding.getInstance(); - if (instance != null && !contributions.contains(instance)) { - contributions.add(instance); - } - } - - return contributions.toArray(new StatusHandlerBinding[contributions.size()]); - } - - /** - * Returns the status handler binding identified by its unique id. If no status - * handler binding with the specified id is registered, <code>null</code> is returned. - * - * @param id The unique id of the status handler binding or <code>null</code> - * - * @return The status handler binding instance or <code>null</code>. - */ - public StatusHandlerBinding getBinding(String id) { - StatusHandlerBinding contribution = null; - if (getExtensions().containsKey(id)) { - ExecutableExtensionProxy<StatusHandlerBinding> proxy = getExtensions().get(id); - // Get the extension instance - contribution = proxy.getInstance(); - } - - return contribution; - } -} +/*******************************************************************************
+ * 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.internal;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import org.eclipse.core.expressions.EvaluationContext;
+import org.eclipse.core.expressions.EvaluationResult;
+import org.eclipse.core.expressions.Expression;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager;
+import org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy;
+import org.eclipse.tcf.te.runtime.statushandler.activator.CoreBundleActivator;
+
+
+/**
+ * Status handler binding extension point manager implementation.
+ */
+public class StatusHandlerBindingExtensionPointManager extends AbstractExtensionPointManager<StatusHandlerBinding> {
+
+ /*
+ * Thread save singleton instance creation.
+ */
+ private static class LazyInstance {
+ public static StatusHandlerBindingExtensionPointManager instance = new StatusHandlerBindingExtensionPointManager();
+ }
+
+ /**
+ * Constructor.
+ */
+ StatusHandlerBindingExtensionPointManager() {
+ super();
+ }
+
+ /**
+ * Returns the singleton instance of the extension point manager.
+ */
+ public static StatusHandlerBindingExtensionPointManager 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.bindings"; //$NON-NLS-1$
+ }
+
+ /* (non-Javadoc)
+ * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName()
+ */
+ @Override
+ protected String getConfigurationElementName() {
+ return "binding"; //$NON-NLS-1$
+ }
+
+ /* (non-Javadoc)
+ * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#doCreateExtensionProxy(org.eclipse.core.runtime.IConfigurationElement)
+ */
+ @Override
+ protected ExecutableExtensionProxy<StatusHandlerBinding> doCreateExtensionProxy(IConfigurationElement element) throws CoreException {
+ return new ExecutableExtensionProxy<StatusHandlerBinding>(element) {
+ /* (non-Javadoc)
+ * @see org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy#newInstance()
+ */
+ @Override
+ public StatusHandlerBinding newInstance() {
+ StatusHandlerBinding instance = new StatusHandlerBinding();
+ try {
+ instance.setInitializationData(getConfigurationElement(), null, null);
+ } catch (CoreException e) {
+ IStatus status = new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(),
+ e.getLocalizedMessage(), e);
+ Platform.getLog(CoreBundleActivator.getContext().getBundle()).log(status);
+ }
+ return instance;
+ }
+ };
+ }
+
+ /**
+ * Returns the applicable status handler bindings for the given handler context.
+ *
+ * @param context The handler context or <code>null</code>.
+ * @return The list of applicable editor page bindings or an empty array.
+ */
+ public StatusHandlerBinding[] getApplicableBindings(Object context) {
+ List<StatusHandlerBinding> applicable = new ArrayList<StatusHandlerBinding>();
+
+ for (StatusHandlerBinding binding : getBindings()) {
+ Expression enablement = binding.getEnablement();
+
+ // The binding is applicable by default if no expression is specified.
+ boolean isApplicable = enablement == null;
+
+ if (enablement != null) {
+ if (context != null) {
+ // Set the default variable to the handler context.
+ EvaluationContext evalContext = new EvaluationContext(null, context);
+ evalContext.addVariable("context", context); //$NON-NLS-1$
+ // Allow plugin activation
+ evalContext.setAllowPluginActivation(true);
+ // Evaluate the expression
+ try {
+ isApplicable = enablement.evaluate(evalContext).equals(EvaluationResult.TRUE);
+ } catch (CoreException e) {
+ IStatus status = new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(),
+ e.getLocalizedMessage(), e);
+ Platform.getLog(CoreBundleActivator.getContext().getBundle()).log(status);
+ }
+ } else {
+ // The enablement is false by definition if no handler context is given.
+ isApplicable = false;
+ }
+ }
+
+ // Add the binding if applicable
+ if (isApplicable) {
+ applicable.add(binding);
+ }
+ }
+
+ return applicable.toArray(new StatusHandlerBinding[applicable.size()]);
+ }
+
+ /**
+ * Returns the list of all contributed status handler bindings.
+ *
+ * @return The list of contributed status handler bindings, or an empty array.
+ */
+ public StatusHandlerBinding[] getBindings() {
+ List<StatusHandlerBinding> contributions = new ArrayList<StatusHandlerBinding>();
+ Collection<ExecutableExtensionProxy<StatusHandlerBinding>> statusHandlerBindings = getExtensions().values();
+ for (ExecutableExtensionProxy<StatusHandlerBinding> statusHandlerBinding : statusHandlerBindings) {
+ StatusHandlerBinding instance = statusHandlerBinding.getInstance();
+ if (instance != null && !contributions.contains(instance)) {
+ contributions.add(instance);
+ }
+ }
+
+ return contributions.toArray(new StatusHandlerBinding[contributions.size()]);
+ }
+
+ /**
+ * Returns the status handler binding identified by its unique id. If no status
+ * handler binding with the specified id is registered, <code>null</code> is returned.
+ *
+ * @param id The unique id of the status handler binding or <code>null</code>
+ *
+ * @return The status handler binding instance or <code>null</code>.
+ */
+ public StatusHandlerBinding getBinding(String id) {
+ StatusHandlerBinding contribution = null;
+ if (getExtensions().containsKey(id)) {
+ ExecutableExtensionProxy<StatusHandlerBinding> proxy = getExtensions().get(id);
+ // Get the extension instance
+ contribution = proxy.getInstance();
+ }
+
+ return contribution;
+ }
+}
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