ruper2/src/java/core/org/krysalis/ruper2/resource/select VersionConstraintsSelector.java,NONE,1.1

Update of /cvsroot/metamorphosis/ruper2/src/java/core/org/krysalis/ruper2/resource/select
In directory sc8-pr-cvs1:/tmp/cvs-serv13733/src/java/core/org/krysalis/ruper2/resource/select

Added Files:
	VersionConstraintsSelector.java 
Log Message:
VersionConstraintsSelector

--- NEW FILE: VersionConstraintsSelector.java ---
/*
 * Created on Sep 4, 2003
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
package org.krysalis.ruper2.resource.select;

import org.krysalis.ruper2.log.Logger;
import org.krysalis.ruper2.resource.Resource;
import org.krysalis.ruper2.util.text.MessageConstants;
import org.krysalis.ruper2.util.text.Messages;
import org.krysalis.version.Version;
import org.krysalis.version.constraint.ConstraintEvaluator;
import org.krysalis.version.constraint.ConstraintResultSet;
import org.krysalis.version.constraint.ConstraintSet;
import org.krysalis.version.impl.KrysalisVersion;

/**
 * @author arb_jack
 */
public class VersionConstraintsSelector extends AbstractResourceSelector {
	ConstraintSet m_constraints = null;

	/**
	 * @param expression
	 */
	public VersionConstraintsSelector(ConstraintSet constraints) {
		super(Messages.getString(MessageConstants.VERSION_SELECTOR));
		m_constraints = constraints;
	}

	public boolean selectResource(Resource resource) {
		boolean selected = false;

		Logger log = Logger.g_loggingOn ? Logger.getLog() : null;

		Version version = resource.getVersion();

		if (null != version) {
			//:TODO: More features...
			if (version instanceof KrysalisVersion) {

				ConstraintResultSet resultSet =
					ConstraintEvaluator.evaluate(
						((KrysalisVersion) version),
						m_constraints);

				selected = !resultSet.hasErrors();

				log.debug(
					"Selected ["
						+ m_constraints.getName()
						+ "] ["
						+ ((KrysalisVersion) version)
						+ "] ["
						+ selected
						+ "]");
			}
			else
				log.debug(
					"Non-KrysalisVersion " + version.getClass().getName());
		}
		else
			log.debug("No Version on " + resource);

		return selected;
	}

	public String toString() {
		return super.toString()
			+ ": [Leval= "
			+ m_constraints.toString()
			+ "]";
	}
}




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