bundles/org.eclipse.equinox.p2.ui/src/org/eclipse/equinox/internal/p2/ui/model/ProfileElement.java

/*******************************************************************************
 * Copyright (c) 2007, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Red Hat Inc. - Fix compiler problems from generified IAdaptable#getAdapter
 *******************************************************************************/
package org.eclipse.equinox.internal.p2.ui.model;

import org.eclipse.equinox.internal.p2.ui.*;
import org.eclipse.equinox.p2.engine.IProfile;
import org.eclipse.equinox.p2.query.IQueryable;

/**
 * Element wrapper class for a profile that uses the query mechanism to obtain
 * its contents.
 *
 * @since 3.4
 */
public class ProfileElement extends RemoteQueriedElement {
	String profileId;

	public ProfileElement(Object parent, String profileId) {
		super(parent);
		this.profileId = profileId;
	}

	@Override
	@SuppressWarnings("unchecked")
	public <T> T getAdapter(Class<T> adapter) {
		if (adapter == IProfile.class)
			return (T) getQueryable();
		return super.getAdapter(adapter);
	}

	@Override
	protected String getImageId(Object obj) {
		return ProvUIImages.IMG_PROFILE;
	}

	@Override
	public String getLabel(Object o) {
		return profileId;
	}

	public String getProfileId() {
		return profileId;
	}

	@Override
	protected int getDefaultQueryType() {
		return QueryProvider.INSTALLED_IUS;
	}

	@Override
	public IQueryable<?> getQueryable() {
		return ProvUI.getProfileRegistry(getProvisioningUI().getSession()).getProfile(profileId);
	}

	/*
	 * Overridden to check whether we know the profile id rather than fetch the
	 * profile from the registry using getQueryable()
	 */
	@Override
	public boolean knowsQueryable() {
		return profileId != null;
	}

	/*
	 * Overridden to check the children so that profiles showing in profile views
	 * accurately reflect if they are empty. We do not cache the children because
	 * often this element is the input of a view and when the view is refreshed we
	 * want to refetch the children.
	 */
	@Override
	public boolean isContainer() {
		return super.getChildren(this).length > 0;
	}
}