Abstract.java

/**
 *  Copyright 2007-2008 University Of Southern California
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */


package edu.isi.pegasus.planner.namespace.aggregator;


/**
 * An abstract implementation of the Profile Aggregators.
 *
 * @author Karan Vahi
 * @version $Revision$
 */
public abstract class Abstract implements Aggregator{



    /**
     * Formats the String value as an integer. If the String is NaN then the
     * default value is assigned.
     *
     * @param value the value to be converted to integer.
     * @param dflt  the default value to be used in case value is NaN or null.
     *
     * @return the integer value
     *
     * @throws NumberFormatException in the case when default value cannot be
     *                               converted to an int.
     */
    protected int parseInt( String value, String dflt ) throws NumberFormatException{
        int val = Integer.parseInt( dflt );

        //check for null and apply default
        if( value == null ) return val;

        //try to parse the value
        try{ val = Integer.parseInt( value ); } catch( Exception e ){ /*ignore for now*/ }

        return val;
    }

}