/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.update.operations;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Vector;
import org.eclipse.update.core.*;
import org.eclipse.update.internal.configurator.*;
import org.eclipse.update.internal.operations.*;
/**
* Entry point for update manager operations. Use this class to obtain the factory that creates
* update manager operations, or to get the operation validator.
* <p>
* <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
* change significantly before reaching stability. It is being made available at this early stage to solicit feedback
* from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
* (repeatedly) as the API evolves.
* </p>
* @since 3.0
* @deprecated The org.eclipse.update component has been replaced by Equinox p2. This
* provisional API was never promoted to stable API, and may be removed from a future release of the platform.
*/
public class OperationsManager {
private static IOperationValidator validator;
private static IOperationFactory operationFactory;
private static Vector listeners = new Vector();
private static Vector pendingOperations = new Vector();
private static boolean inProgress;
private OperationsManager() {
}
/**
* Each update operations must be created by the operation factory.
* Use this method to obtain the factory.
* @return returns the operation factory
*/
public static IOperationFactory getOperationFactory() {
if (operationFactory == null)
operationFactory = new OperationFactory();
return operationFactory;
}
/**
* Check if the feature is the subject of an update operation such as install,
* configure, etc. and return it. Currently there can only be one pending
* operation on a feature.
* @param feature feature to check for pending operations
* @return pending operation if any, otherwise null.
*/
public static IFeatureOperation findPendingOperation(IFeature feature) {
for (int i = 0; i < pendingOperations.size(); i++) {
IFeatureOperation operation =
(IFeatureOperation) pendingOperations.elementAt(i);
if (operation.getFeature().equals(feature))
return operation;
}
return null;
}
/**
* Register a pending operation.
* @param operation pending operation
*/
public static void addPendingOperation(IOperation operation) {
pendingOperations.add(operation);
//fireObjectsAdded(this, new Object[] { change });
}
/**
* Unregister a pending operation.
* @param operation pending operation
*/
public static void removePendingOperation(IOperation operation) {
pendingOperations.remove(operation);
//fireObjectsRemoved(this, new Object[] { change });
}
/**
* Adds a model changed listener.
* @param listener update model change listener
*/
public static void addUpdateModelChangedListener(IUpdateModelChangedListener listener) {
if (!listeners.contains(listener))
listeners.add(listener);
}
/**
* Removes an model changed listener.
* @param listener update model change listener
*/
public static void removeUpdateModelChangedListener(IUpdateModelChangedListener listener) {
if (listeners.contains(listener))
listeners.remove(listener);
}
/**
* Notifies model changed listeners when features/sites/etc. are added.
* @param parent parent object
* @param children children added
*/
public static void fireObjectsAdded(Object parent, Object[] children) {
for (Iterator iter = listeners.iterator(); iter.hasNext();) {
IUpdateModelChangedListener listener =
(IUpdateModelChangedListener) iter.next();
listener.objectsAdded(parent, children);
}
}
/**
* Notifies model changed listeners when features/sites/etc are removed.
* @param parent parent object
* @param children children removed
*/
public static void fireObjectsRemoved(Object parent, Object[] children) {
for (Iterator iter = listeners.iterator(); iter.hasNext();) {
IUpdateModelChangedListener listener =
(IUpdateModelChangedListener) iter.next();
listener.objectsRemoved(parent, children);
}
}
/**
* Notifies model changed listeners when features/sites/etc. have changed.
* @param object changed object
* @param property changed object property
*/
public static void fireObjectChanged(Object object, String property) {
for (Iterator iter = listeners.iterator(); iter.hasNext();) {
IUpdateModelChangedListener listener =
(IUpdateModelChangedListener) iter.next();
listener.objectChanged(object, property);
}
}
/**
* Returns true when any of the install operations requires a license agreement.
* @param jobs features to install
* @return true when any of the features to install have a license
*/
public static boolean hasSelectedJobsWithLicenses(IInstallFeatureOperation[] jobs) {
for (int i = 0; i < jobs.length; i++) {
if (UpdateUtils.hasLicense(jobs[i].getFeature()))
return true;
}
return false;
}
/**
* Returns true when any of the features to install has optional features.
* @param jobs features to install
* @return true when any of the features has optional features
*/
public static boolean hasSelectedJobsWithOptionalFeatures(IInstallFeatureOperation[] jobs) {
for (int i = 0; i < jobs.length; i++) {
if (UpdateUtils.hasOptionalFeatures(jobs[i].getFeature()))
return true;
}
return false;
}
/**
* Returns the list of operations that need a license agreement.
* @param jobs features to install
* @return the list of operation that need a license agreement
*/
public static IInstallFeatureOperation[] getSelectedJobsWithLicenses(IInstallFeatureOperation[] jobs) {
ArrayList list = new ArrayList();
for (int i = 0; i < jobs.length; i++) {
if (UpdateUtils.hasLicense(jobs[i].getFeature()))
list.add(jobs[i]);
}
return (IInstallFeatureOperation[]) list.toArray(
new IInstallFeatureOperation[list.size()]);
}
/**
* Returns the list of operations that have optional features to install.
* @param jobs features to install
* @return list of operations that have optional features to install
*/
public static IInstallFeatureOperation[] getSelectedJobsWithOptionalFeatures(IInstallFeatureOperation[] jobs) {
ArrayList list = new ArrayList();
for (int i = 0; i < jobs.length; i++) {
if (UpdateUtils.hasOptionalFeatures(jobs[i].getFeature()))
list.add(jobs[i]);
}
return (IInstallFeatureOperation[]) list.toArray(
new IInstallFeatureOperation[list.size()]);
}
/**
* Sets whether any operations is in progress.
* @param inProgress true when operation is in progress
*/
public static synchronized void setInProgress(boolean inProgress) {
OperationsManager.inProgress = inProgress;
}
/**
* Returns true when some operation is being executed, false otherwise.
* @return true when some operation execution is in progress, false otherwise
*/
public static synchronized boolean isInProgress() {
return inProgress;
}
/**
* Returns the operations validator.
* @return the operation validator
*/
public static IOperationValidator getValidator() {
if (validator == null)
validator = new OperationValidator();
return validator;
}
/**
* Sets a custom operation validator
* @param validator the custom validator
*/
public static void setValidator(IOperationValidator validator) {
OperationsManager.validator = validator;
}
/**
* Applies the changes made to the current configuration.
* Care must be taken when using this method. Normally, if you install a new
* plugin it is safe to do it.
*/
public static void applyChangesNow() {
ConfigurationActivator configurator = ConfigurationActivator.getConfigurator();
configurator.installBundles();
pendingOperations.clear();
}
}
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