/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 freemarker.test.templatesuite.models;

import java.util.List;

import freemarker.template.SimpleScalar;
import freemarker.template.TemplateMethodModel;

/**
 * A simple method model used as a test bed.
 */
public class SimpleTestMethod implements TemplateMethodModel {

    /**
     * Executes a method call.
     *
     * @param arguments a <tt>List</tt> of <tt>String</tt> objects containing
     * the values of the arguments passed to the method.
     * @return the <tt>TemplateModel</tt> produced by the method, or null.
     */
    public Object exec(List arguments) {
        if ( arguments.size() == 0 ) {
            return new SimpleScalar( "Empty list provided" );
        } else if ( arguments.size() > 1 ) {
            return new SimpleScalar( "Argument size is: " + arguments.size() );
        } else {
            return new SimpleScalar( "Single argument value is: " + arguments.get(0) );
        }
    }
}