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/*******************************************************************************
* Copyright (c) 2011, 2016 THALES GLOBAL SERVICES.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.tools.internal.format.data.extension;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.sirius.common.ui.SiriusTransPlugin;
import org.eclipse.sirius.diagram.ui.tools.api.format.IFormatDataManagerProvider;
/**
* Describes an extension as contributed to the
* {@link FormatDataManagerRegistryListener#FORMAT_DATA_MANAGER_PROVIDER_EXTENSION_POINT}
* extension point.
*
* @author mporhel
*
*/
public class FormatDataManagerDescriptor {
/**
* Name of the attribute corresponding to the contributed class's path.
*/
public static final String FORMAT_DATA_MANAGER_PROVIDER_CLASS_NAME = "class"; //$NON-NLS-1$
/**
* Name of the attribute corresponding to the contributed id.
*/
public static final String FORMAT_DATA_MANAGER_PROVIDER_ID = "id"; //$NON-NLS-1$
/**
* Configuration element of this descriptor .
*/
private final IConfigurationElement element;
/**
* The path of the contributed class.
*/
private String extensionClassName;
/**
* The {@link IFormatDataManagerProvider} described by this descriptor.
*/
private IFormatDataManagerProvider extension;
private String id;
/**
* Instantiates a descriptor with all information.
*
* @param configuration
* Configuration element from which to create this descriptor.
*/
public FormatDataManagerDescriptor(IConfigurationElement configuration) {
element = configuration;
extensionClassName = configuration.getAttribute(FORMAT_DATA_MANAGER_PROVIDER_CLASS_NAME);
}
/**
* Creates an instance of this descriptor's
* {@link IFormatDataManagerProvider} .
*
* @return A new instance of this descriptor's
* {@link IFormatDataManagerProvider}.
*/
public IFormatDataManagerProvider getFormatDataManagerProvider() {
if (extension == null) {
try {
extension = (IFormatDataManagerProvider) element.createExecutableExtension(FORMAT_DATA_MANAGER_PROVIDER_CLASS_NAME);
} catch (CoreException e) {
SiriusTransPlugin.INSTANCE.error(e.getMessage(), e);
}
}
return extension;
}
/**
* Return the id of the current tab extension.
*
* @return the id of the current tab extension.
*/
public String getId() {
if (id == null) {
id = element.getAttribute(FORMAT_DATA_MANAGER_PROVIDER_ID);
}
return id;
}
/**
* Returns the fully qualified name of the contributed class.
*
* @return the fully qualified name of the contributed class
*/
public String getExtensionClassName() {
return extensionClassName;
}
}
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