diff options
author | Uwe Stieber | 2012-09-04 10:03:58 +0000 |
---|---|---|
committer | Uwe Stieber | 2012-09-04 10:03:58 +0000 |
commit | 91551a0020d56dc6dacde55848cad6f447454172 (patch) | |
tree | 7cb063a956a8bb0c8cd211c2720e75d3fd1b85c0 /target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence | |
parent | 243afc23b63c1536bc7aecf6397b2757f83e6875 (diff) | |
download | org.eclipse.tcf-91551a0020d56dc6dacde55848cad6f447454172.tar.gz org.eclipse.tcf-91551a0020d56dc6dacde55848cad6f447454172.tar.xz org.eclipse.tcf-91551a0020d56dc6dacde55848cad6f447454172.zip |
Target Explorer: Avoid multiple persistence delegate error. Changed to information printed in debug mode only.
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence')
-rw-r--r-- | target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/PersistenceManager.java | 291 |
1 files changed, 146 insertions, 145 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/PersistenceManager.java b/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/PersistenceManager.java index 4b60113e7..c8e03c25f 100644 --- a/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/PersistenceManager.java +++ b/target_explorer/plugins/org.eclipse.tcf.te.runtime.persistence/src/org/eclipse/tcf/te/runtime/persistence/PersistenceManager.java @@ -1,145 +1,146 @@ -/*******************************************************************************
- * Copyright (c) 2011, 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;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-
-import org.eclipse.core.runtime.Assert;
-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.persistence.activator.CoreBundleActivator;
-import org.eclipse.tcf.te.runtime.persistence.interfaces.IPersistenceDelegate;
-import org.eclipse.tcf.te.runtime.persistence.internal.PersistenceDelegateBinding;
-import org.eclipse.tcf.te.runtime.persistence.internal.PersistenceDelegateBindingExtensionPointManager;
-
-/**
- * Persistence delegate manager implementation.
- */
-public class PersistenceManager extends AbstractExtensionPointManager<IPersistenceDelegate> {
-
- /*
- * Thread save singleton instance creation.
- */
- private static class LazyInstance {
- public static PersistenceManager instance = new PersistenceManager();
- }
-
- /**
- * Constructor.
- */
- PersistenceManager() {
- super();
- }
-
- /**
- * Returns the singleton instance of the extension point manager.
- */
- public static PersistenceManager 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.delegates"; //$NON-NLS-1$
- }
-
- /* (non-Javadoc)
- * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName()
- */
- @Override
- protected String getConfigurationElementName() {
- return "delegate"; //$NON-NLS-1$
- }
-
- /**
- * Returns the list of all contributed persistence delegates.
- *
- * @param unique If <code>true</code>, the method returns new instances for each
- * contributed persistence delegate.
- *
- * @return The list of contributed persistence delegates, or an empty array.
- */
- protected IPersistenceDelegate[] getDelegates(boolean unique) {
- List<IPersistenceDelegate> contributions = new ArrayList<IPersistenceDelegate>();
- Collection<ExecutableExtensionProxy<IPersistenceDelegate>> delegates = getExtensions().values();
- for (ExecutableExtensionProxy<IPersistenceDelegate> delegate : delegates) {
- IPersistenceDelegate instance = unique ? delegate.newInstance() : delegate.getInstance();
- if (instance != null && !contributions.contains(instance)) {
- contributions.add(instance);
- }
- }
-
- return contributions.toArray(new IPersistenceDelegate[contributions.size()]);
- }
-
- /**
- * Returns the persistence delegate identified by its unique id. If no persistence
- * delegate with the specified id is registered, <code>null</code> is returned.
- *
- * @param id The unique id of the persistence delegate or <code>null</code>
- * @param unique If <code>true</code>, the method returns new instances of the persistence delegate contribution.
- *
- * @return The persistence delegate instance or <code>null</code>.
- */
- protected IPersistenceDelegate getDelegate(String id, boolean unique) {
- IPersistenceDelegate contribution = null;
- if (getExtensions().containsKey(id)) {
- ExecutableExtensionProxy<IPersistenceDelegate> proxy = getExtensions().get(id);
- // Get the extension instance
- contribution = unique ? proxy.newInstance() : proxy.getInstance();
- }
-
- return contribution;
- }
-
- /**
- * Returns the persistence delegate which is enabled for the given
- * context and persistence container.
- *
- * @param context The persistence delegate context. Must not be <code>null</code>.
- * @param container The persistence container or <code>null</code>.
- * @return The persistence delegate which is enabled or <code>null</code>.
- */
- public IPersistenceDelegate getDelegate(Object context, Object container, boolean unique) {
- Assert.isNotNull(context);
-
- List<IPersistenceDelegate> delegates = new ArrayList<IPersistenceDelegate>();
-
- // Get the list of applicable bindings
- PersistenceDelegateBinding[] bindings = PersistenceDelegateBindingExtensionPointManager.getInstance().getApplicableBindings(context, container);
- for (PersistenceDelegateBinding binding : bindings) {
- IPersistenceDelegate delegate = getDelegate(binding.getDelegateId(), unique);
- if (delegate != null && !delegates.contains(delegate)) {
- delegates.add(delegate);
- }
- }
-
- // If no applicable persistence delegate is found, always return null
- if (delegates.isEmpty() || delegates.isEmpty()) {
- return null;
- }
-
- if (delegates.size() > 1) {
- IStatus status = new Status(IStatus.ERROR, CoreBundleActivator.getUniqueIdentifier(), "Found multiple persistence delgates for " + context.getClass().getName() + //$NON-NLS-1$
- " (" + context + ")" + (container != null ? " to store in " + container : "")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
- Platform.getLog(CoreBundleActivator.getContext().getBundle()).log(status);
- }
-
- return delegates.get(0);
- }
-}
+/******************************************************************************* + * Copyright (c) 2011, 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; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.List; + +import org.eclipse.core.runtime.Assert; +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.persistence.activator.CoreBundleActivator; +import org.eclipse.tcf.te.runtime.persistence.interfaces.IPersistenceDelegate; +import org.eclipse.tcf.te.runtime.persistence.internal.PersistenceDelegateBinding; +import org.eclipse.tcf.te.runtime.persistence.internal.PersistenceDelegateBindingExtensionPointManager; + +/** + * Persistence delegate manager implementation. + */ +public class PersistenceManager extends AbstractExtensionPointManager<IPersistenceDelegate> { + + /* + * Thread save singleton instance creation. + */ + private static class LazyInstance { + public static PersistenceManager instance = new PersistenceManager(); + } + + /** + * Constructor. + */ + PersistenceManager() { + super(); + } + + /** + * Returns the singleton instance of the extension point manager. + */ + public static PersistenceManager 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.delegates"; //$NON-NLS-1$ + } + + /* (non-Javadoc) + * @see org.eclipse.tcf.te.runtime.extensions.AbstractExtensionPointManager#getConfigurationElementName() + */ + @Override + protected String getConfigurationElementName() { + return "delegate"; //$NON-NLS-1$ + } + + /** + * Returns the list of all contributed persistence delegates. + * + * @param unique If <code>true</code>, the method returns new instances for each + * contributed persistence delegate. + * + * @return The list of contributed persistence delegates, or an empty array. + */ + protected IPersistenceDelegate[] getDelegates(boolean unique) { + List<IPersistenceDelegate> contributions = new ArrayList<IPersistenceDelegate>(); + Collection<ExecutableExtensionProxy<IPersistenceDelegate>> delegates = getExtensions().values(); + for (ExecutableExtensionProxy<IPersistenceDelegate> delegate : delegates) { + IPersistenceDelegate instance = unique ? delegate.newInstance() : delegate.getInstance(); + if (instance != null && !contributions.contains(instance)) { + contributions.add(instance); + } + } + + return contributions.toArray(new IPersistenceDelegate[contributions.size()]); + } + + /** + * Returns the persistence delegate identified by its unique id. If no persistence + * delegate with the specified id is registered, <code>null</code> is returned. + * + * @param id The unique id of the persistence delegate or <code>null</code> + * @param unique If <code>true</code>, the method returns new instances of the persistence delegate contribution. + * + * @return The persistence delegate instance or <code>null</code>. + */ + protected IPersistenceDelegate getDelegate(String id, boolean unique) { + IPersistenceDelegate contribution = null; + if (getExtensions().containsKey(id)) { + ExecutableExtensionProxy<IPersistenceDelegate> proxy = getExtensions().get(id); + // Get the extension instance + contribution = unique ? proxy.newInstance() : proxy.getInstance(); + } + + return contribution; + } + + /** + * Returns the persistence delegate which is enabled for the given + * context and persistence container. + * + * @param context The persistence delegate context. Must not be <code>null</code>. + * @param container The persistence container or <code>null</code>. + * @return The persistence delegate which is enabled or <code>null</code>. + */ + public IPersistenceDelegate getDelegate(Object context, Object container, boolean unique) { + Assert.isNotNull(context); + + List<IPersistenceDelegate> delegates = new ArrayList<IPersistenceDelegate>(); + + // Get the list of applicable bindings + PersistenceDelegateBinding[] bindings = PersistenceDelegateBindingExtensionPointManager.getInstance().getApplicableBindings(context, container); + for (PersistenceDelegateBinding binding : bindings) { + IPersistenceDelegate delegate = getDelegate(binding.getDelegateId(), unique); + if (delegate != null && !delegates.contains(delegate)) { + delegates.add(delegate); + } + } + + // If no applicable persistence delegate is found, always return null + if (delegates.isEmpty() || delegates.isEmpty()) { + return null; + } + + // Write an information if we are in debug mode and we have more than one persistence delegate. + if (Platform.inDebugMode() && delegates.size() > 1) { + IStatus status = new Status(IStatus.INFO, CoreBundleActivator.getUniqueIdentifier(), "Found multiple persistence delegates for " + context.getClass().getName() + //$NON-NLS-1$ + " (" + context + ")" + (container != null ? " to store in " + container : "")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ + Platform.getLog(CoreBundleActivator.getContext().getBundle()).log(status); + } + + return delegates.get(0); + } +} |