/** | |
* Copyright (c) 2009-2010 Thales Corporate Services S.A.S. | |
* This program and the accompanying materials | |
* are made available under the terms of the Eclipse Public License v2.0 | |
* which accompanies this distribution, and is available at | |
* https://www.eclipse.org/legal/epl-v2.0 | |
* | |
* SPDX-License-Identifier: EPL-2.0 | |
* | |
* Contributors: | |
* Thales Corporate Services S.A.S - initial API and implementation | |
*/ | |
package org.eclipse.egf.model.ftask.internal.registry; | |
import org.eclipse.core.internal.registry.Handle; | |
import org.eclipse.core.runtime.CoreException; | |
import org.eclipse.core.runtime.IConfigurationElement; | |
import org.eclipse.core.runtime.IExtension; | |
import org.eclipse.egf.common.l10n.EGFCommonMessages; | |
import org.eclipse.egf.model.EGFFtaskPlugin; | |
import org.eclipse.egf.model.ftask.task.ITaskNature; | |
import org.eclipse.osgi.util.NLS; | |
/** | |
* @author Xavier Maysonnave | |
* | |
*/ | |
public class TaskNatureProxy { | |
private IConfigurationElement _element; | |
private String _uniqueIdentifier; | |
private int _handleId = -1; | |
private String _kind; | |
private String _class; | |
private ITaskNature _executable; | |
/** | |
* Creates a new TaskNatureProxy proxy based on the given configuration element. | |
* Returns the new proxy, or null if the element could not be created. | |
*/ | |
public static TaskNatureProxy createProxy(IConfigurationElement element) { | |
if (element == null || element.isValid() == false) { | |
return null; | |
} | |
// Store identifier | |
IExtension declaringExtension = element.getDeclaringExtension(); | |
String uniqueIdentifier = declaringExtension.getUniqueIdentifier(); | |
int handleId = -1; | |
if (declaringExtension instanceof Handle) { | |
handleId = ((Handle) declaringExtension).getId(); | |
} | |
// see platform:/plugin/org.eclipse.egf.model.ftask/schema/org.eclipse.egf.model.ftask.task.exsd | |
String clazz = element.getAttribute(TaskNatureRegistry.INVOKER_ATT_CLASS); | |
// 'class' attribute is mandatory | |
if (clazz == null || clazz.trim().length() == 0) { | |
return null; | |
} | |
// 'kind' attribute is mandatory | |
String kind = element.getAttribute(TaskNatureRegistry.INVOKER_ATT_KIND); | |
if (kind == null || kind.trim().length() == 0) { | |
return null; | |
} | |
return new TaskNatureProxy(element, clazz, kind, uniqueIdentifier, handleId); | |
} | |
public TaskNatureProxy(IConfigurationElement element, String clazz, String kind, String uniqueIdentifier, int handleId) { | |
_element = element; | |
_class = clazz.trim(); | |
_kind = kind.trim(); | |
if (uniqueIdentifier != null && uniqueIdentifier.trim().length() != 0) { | |
_uniqueIdentifier = uniqueIdentifier.trim(); | |
} | |
_handleId = handleId; | |
} | |
/** | |
* @return the _uniqueIdentifier | |
*/ | |
public String getUniqueIdentifier() { | |
return _uniqueIdentifier; | |
} | |
/** | |
* @return the _handleId | |
*/ | |
public int getHandleId() { | |
return _handleId; | |
} | |
/** | |
* @return the _taskNature | |
*/ | |
public ITaskNature getTaskNature() throws CoreException { | |
if (_executable == null && _element.isValid()) { | |
Object object = _element.createExecutableExtension(TaskNatureRegistry.INVOKER_ATT_CLASS); | |
if (object == null) { | |
return null; | |
} | |
if (object instanceof ITaskNature == false) { | |
EGFFtaskPlugin.getPlugin().logError(NLS.bind(EGFCommonMessages.Wrong_Class_Message, object.getClass().getName())); | |
EGFFtaskPlugin.getPlugin().logInfo(NLS.bind(EGFCommonMessages.Wrong_Class_Sub_Type_Message, ITaskNature.class.getName()), 1); | |
EGFFtaskPlugin.getPlugin().logInfo(NLS.bind(EGFCommonMessages.Bundle_Message, _element.getContributor().getName()), 1); | |
EGFFtaskPlugin.getPlugin().logInfo(NLS.bind(EGFCommonMessages.Extension_Point_Message, _element.getName()), 1); | |
EGFFtaskPlugin.getPlugin().logInfo(NLS.bind(EGFCommonMessages.Attribute_Message, _class), 1); | |
return null; | |
} | |
_executable = (ITaskNature) object; | |
} | |
return _executable; | |
} | |
public String getKind() { | |
return _kind; | |
} | |
public boolean originatesFrom(IExtension extension) { | |
String id = extension.getUniqueIdentifier(); | |
if (id != null) { | |
return id.equals(_uniqueIdentifier); | |
} | |
if (extension instanceof Handle == false) { | |
return false; | |
} | |
return (_handleId == ((Handle) extension).getId()); | |
} | |
} |