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/**
* Copyright (c) 2011 Ericsson 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:
* Ericsson Research Canada - Initial API and implementation
*
*/
package org.eclipse.mylyn.reviews.notifications.core;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.mylyn.commons.core.StatusHandler;
import org.eclipse.mylyn.reviews.notifications.internal.core.MeetingData;
import org.eclipse.mylyn.reviews.notifications.spi.NotificationsConnector;
import org.eclipse.osgi.util.NLS;
/**
* @author Alvaro Sanchez-Leon
*
*/
public class NotificationsCore {
// ------------------------------------------------------------------------
// Constants
// ------------------------------------------------------------------------
public static final String PLUGIN_ID = "org.eclipse.mylyn.reviews.notifications"; //$NON-NLS-1$
// ------------------------------------------------------------------------
// Methods
// ------------------------------------------------------------------------
/**
* @return
*/
public static List<String> getConnectorIds() {
List<String> connectorIds = new ArrayList<String>();
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint connectorsExtensionPoint = registry.getExtensionPoint(PLUGIN_ID + ".connectors"); //$NON-NLS-1$
IExtension[] extensions = connectorsExtensionPoint.getExtensions();
for (IExtension extension : extensions) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (IConfigurationElement element : elements) {
connectorIds.add(element.getAttribute("id"));
}
}
return connectorIds;
}
/**
* Get the first connector with status Enabled attempting the ids in the order of appearance within the provided
* array
*
* @param ids
* @return
*/
public static NotificationsConnector getFirstEnabled(String[] ids) {
Assert.isNotNull(ids);
MultiStatus result = new MultiStatus(PLUGIN_ID, 0, "Notifications connectors failed to load.", null); //$NON-NLS-1$
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint connectorsExtensionPoint = registry.getExtensionPoint(PLUGIN_ID + ".connectors"); //$NON-NLS-1$
IExtension[] extensions = connectorsExtensionPoint.getExtensions();
Map<String, IConfigurationElement> configElements = new HashMap<String, IConfigurationElement>();
// Build a map of ids
for (IExtension extension : extensions) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (IConfigurationElement element : elements) {
configElements.put(element.getAttribute("id"), element);
}
}
// scan for the id in the order provided by the array
IConfigurationElement dConfigElement = null;
for (int i = 0; i < ids.length; i++) {
dConfigElement = configElements.get(ids[i]);
if (dConfigElement != null) {
// make sure it's enabled
NotificationsConnector connector = loadElement(dConfigElement, result);
if (connector != null && connector.isEnabled()) {
return connector;
}
}
}
if (!result.isOK()) {
StatusHandler.log(result);
}
return null;
}
private static NotificationsConnector loadElement(IConfigurationElement aElement, MultiStatus aStatus) {
try {
Object object = aElement.createExecutableExtension("core"); //$NON-NLS-1$
if (object instanceof NotificationsConnector) {
// success
return (NotificationsConnector) object;
} else {
aStatus.add(new Status(
IStatus.ERROR,
PLUGIN_ID,
NLS.bind(
"Notifications Connector core ''{0}'' does not extend expected class for extension contributed by {1}", //$NON-NLS-1$
object.getClass().getCanonicalName(), aElement.getContributor().getName())));
}
} catch (Throwable e) {
aStatus.add(new Status(
IStatus.ERROR,
PLUGIN_ID,
NLS.bind(
"Notifications Connector core failed to load for extension contributed by {0}", aElement.getContributor().getName()), e)); //$NON-NLS-1$
}
return null;
}
/**
* Search for a connector with given id, return it if found
*
* @param id
* @return
*/
public static NotificationsConnector loadConnector(String id) {
Assert.isNotNull(id);
MultiStatus result = new MultiStatus(PLUGIN_ID, 0, "Notifications connectors failed to load.", null); //$NON-NLS-1$
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint connectorsExtensionPoint = registry.getExtensionPoint(PLUGIN_ID + ".connectors"); //$NON-NLS-1$
IExtension[] extensions = connectorsExtensionPoint.getExtensions();
for (IExtension extension : extensions) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (IConfigurationElement element : elements) {
if (id.equals(element.getAttribute("id"))) { //$NON-NLS-1$
try {
Object object = element.createExecutableExtension("core"); //$NON-NLS-1$
if (object instanceof NotificationsConnector) {
return (NotificationsConnector) object;
} else {
result.add(new Status(
IStatus.ERROR,
PLUGIN_ID,
NLS.bind(
"Notifications Connector core ''{0}'' does not extend expected class for extension contributed by {1}", //$NON-NLS-1$
object.getClass().getCanonicalName(), element.getContributor().getName())));
}
} catch (Throwable e) {
result.add(new Status(
IStatus.ERROR,
PLUGIN_ID,
NLS.bind(
"Notifications Connector core failed to load for extension contributed by {0}", element.getContributor().getName()), e)); //$NON-NLS-1$
}
}
}
}
if (!result.isOK()) {
StatusHandler.log(result);
}
return null;
}
/**
* Access factory method
*
* @param aCustomId
* @param aSubject
* @param aBody
* @param aLocation
* @param aStartTimeMilli
* @param aEndTimeMilli
* @return
* @throws CoreException
*/
public static IMeetingData createMeetingData(String aCustomId, String aSubject, String aBody, String aLocation,
long aStartTimeMilli, long aEndTimeMilli) throws CoreException {
return new MeetingData(aCustomId, aSubject, aBody, aLocation, aStartTimeMilli,
aEndTimeMilli);
}
}
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