diff options
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/internal/VariableProviderExtensionPointManager.java')
-rw-r--r-- | target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/internal/VariableProviderExtensionPointManager.java | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/internal/VariableProviderExtensionPointManager.java b/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/internal/VariableProviderExtensionPointManager.java new file mode 100644 index 000000000..452b3193d --- /dev/null +++ b/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/internal/VariableProviderExtensionPointManager.java @@ -0,0 +1,79 @@ +/******************************************************************************* + * Copyright (c) 2012 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.persistence.internal; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.List; + +import org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager; +import org.eclipse.tcf.te.runtime.extensions.ExecutableExtensionProxy; +import org.eclipse.tcf.te.runtime.persistence.interfaces.IVariableProvider; + + +/** + * VariableProviderExtensionPointManager + */ +public class VariableProviderExtensionPointManager extends AbstractExtensionPointManager<IVariableProvider> { + + /* + * Thread save singleton instance creation. + */ + private static class LazyInstance { + public static VariableProviderExtensionPointManager instance = new VariableProviderExtensionPointManager(); + } + + /** + * Constructor. + */ + VariableProviderExtensionPointManager() { + super(); + } + + /** + * Returns the singleton instance of the extension point manager. + */ + public static VariableProviderExtensionPointManager 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.persistence.variableProviders"; //$NON-NLS-1$ + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName() + */ + @Override + protected String getConfigurationElementName() { + return "provider"; //$NON-NLS-1$ + } + + /** + * Returns all variable providers. + * + * @return The list of variable providers or an empty array. + */ + public IVariableProvider[] getProviders() { + List<IVariableProvider> contributions = new ArrayList<IVariableProvider>(); + Collection<ExecutableExtensionProxy<IVariableProvider>> delegates = getExtensions().values(); + for (ExecutableExtensionProxy<IVariableProvider> delegate : delegates) { + IVariableProvider instance = delegate.getInstance(); + if (instance != null && !contributions.contains(instance)) { + contributions.add(instance); + } + } + return contributions.toArray(new IVariableProvider[contributions.size()]); + } +} |