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/****************************************************************************
* Copyright (c) 2004 Composent, Inc. and others.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* Contributors:
* Composent, Inc. - initial API and implementation
*
* SPDX-License-Identifier: EPL-2.0
*****************************************************************************/
package org.eclipse.ecf.presence.roster;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IAdapterManager;
import org.eclipse.ecf.internal.presence.PresencePlugin;
/**
* Base class implmentation of {@link IRosterItem} super interface. This class
* is a superclass for the {@link RosterEntry} and {@link RosterGroup} classes.
*/
public class RosterItem implements IRosterItem {
protected String name;
protected IRosterItem parent;
protected RosterItem() {
// protected root constructor
}
public RosterItem(IRosterItem parent, String name) {
Assert.isNotNull(name);
this.parent = parent;
this.name = name;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.presence.roster.IRosterItem#getName()
*/
public String getName() {
return name;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ecf.presence.roster.IRosterItem#getParent()
*/
public IRosterItem getParent() {
return parent;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
*/
public Object getAdapter(Class adapter) {
if (adapter.isInstance(this)) {
return this;
}
IAdapterManager adapterManager = PresencePlugin.getDefault().getAdapterManager();
if (adapterManager == null)
return null;
return adapterManager.loadAdapter(this, adapter.getName());
}
public IRoster getRoster() {
if (this instanceof IRoster)
return (IRoster) this;
IRosterItem p = getParent();
while (p != null && !(p instanceof IRoster))
p = p.getParent();
return (IRoster) p;
}
}
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