ManifestEditorUtils.java

/*******************************************************************************
 * Copyright (c) 2009 SpringSource, a divison of VMware, Inc.
 * 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:
 *     SpringSource, a division of VMware, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.virgo.ide.ui.editors;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.virgo.ide.bundlerepository.domain.Artefact;


/**
 * @author Christian Dupuis
 */
public class ManifestEditorUtils {

	/**
	 * Returns a collection of downloadable artifacts where only the latest
	 * versions are included.
	 */
	public static void removeOldVersions(Set<Artefact> bundles) {
		Map<String, Artefact> symbolicNameToHighestVersionMap = new HashMap<String, Artefact>(bundles.size());

		Set<Artefact> oldArtifacts = new HashSet<Artefact>();

		for (Artefact currArtifactDefinition : bundles) {
			Artefact mappedArtifact = symbolicNameToHighestVersionMap.get(currArtifactDefinition.getSymbolicName());
			if (mappedArtifact == null) {
				symbolicNameToHighestVersionMap.put(currArtifactDefinition.getSymbolicName(), currArtifactDefinition);
			}
			else {
				if (currArtifactDefinition.getVersion().compareTo(mappedArtifact.getVersion()) <= 0) {
					oldArtifacts.add(currArtifactDefinition);
				}
				else {
					oldArtifacts.add(mappedArtifact);
					symbolicNameToHighestVersionMap.put(currArtifactDefinition.getSymbolicName(),
							currArtifactDefinition);
				}
			}
		}

		bundles.removeAll(oldArtifacts);
	}

	/**
	 * Returns true if the array contains a marker where the severity is ERROR.
	 */
	public static boolean hasErrorSeverityMarker(IMarker[] markers) throws CoreException {

		for (IMarker currMarker : markers) {
			Integer severity = (Integer) currMarker.getAttribute("severity");
			if (severity != null && severity.intValue() == 2) {
				return true;
			}
		}
		return false;
	}

}