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Drools and jBPM integration for Spring.

There is a newer version: 6.0.0.Beta2

/*
 * Copyright 2010 JBoss Inc
 *
 * 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 org.drools.container.spring.namespace;

public class DefinitionParserHelper {

    public static void emptyAttributeCheck(final String element,
                                           final String attributeName,
                                           final String attribute) {
        if ( attribute == null || attribute.trim().length() == 0 ) {
            throw new IllegalArgumentException( "<" + element + "> requires a '" + attributeName + "' attribute" );
        }
    }
}