/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is 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:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.meta.action.impl;
import org.eclipse.core.runtime.*;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.model.plugin.ModelPlugin;
import org.jboss.tools.common.meta.*;
public abstract class CompoundAdoptManager implements XAdoptManager {
public CompoundAdoptManager() {}
protected synchronized final XAdoptManager[] loadManagers(String extensionPoint) {
IExtensionPoint p = Platform.getExtensionRegistry().getExtensionPoint(extensionPoint);
if(p == null) {
ModelPlugin.getDefault().getLog().log(new Status(Status.ERROR, ModelPlugin.PLUGIN_ID, Status.OK, "Model warning: Cannot load extension point " + extensionPoint + ".", null)); //$NON-NLS-1$ //$NON-NLS-2$
return new XAdoptManager[0];
}
IConfigurationElement[] es = p.getConfigurationElements();
XAdoptManager[] array = new XAdoptManager[es.length];
int length = 0;
for (int i = 0; i < es.length; i++) {
String cls = es[i].getAttribute("class"); //$NON-NLS-1$
if(cls == null || cls.length() == 0) continue;
try {
XAdoptManager m = (XAdoptManager)es[i].createExecutableExtension("class"); //$NON-NLS-1$
if(m != null) {
array[length] = m;
length++;
}
} catch (CoreException e) {
ModelPlugin.getDefault().getLog().log(new Status(Status.ERROR, ModelPlugin.PLUGIN_ID, Status.OK, "Model warning: Cannot load class " + cls + ".", e)); //$NON-NLS-1$ //$NON-NLS-2$
} catch (ClassCastException e2) {
ModelPlugin.getDefault().getLog().log(new Status(Status.ERROR, ModelPlugin.PLUGIN_ID, Status.OK, "Model warning: Cannot load class " + cls + ".", e2)); //$NON-NLS-1$ //$NON-NLS-2$
}
}
if(length < array.length) {
XAdoptManager[] array2 = new XAdoptManager[length];
System.arraycopy(array, 0, array2, 0, length);
return array2;
}
return array;
}
public abstract XAdoptManager[] getManagers();
public boolean isAdoptable(XModelObject target, XModelObject object) {
XAdoptManager[] ms = getManagers();
for (int i = 0; i < ms.length; i++)
if(ms[i].isAdoptable(target, object)) return true;
return false;
}
public void adopt(XModelObject target, XModelObject object, java.util.Properties p) throws XModelException {
XAdoptManager[] ms = getManagers();
for (int i = 0; i < ms.length; i++) {
if(ms[i].isAdoptable(target, object)) {
ms[i].adopt(target, object, p);
return;
}
}
}
}