001    package org.apache.commons.digester3.annotations.handlers;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.commons.digester3.annotations.AnnotationHandler;
023    import org.apache.commons.digester3.annotations.reflect.MethodArgument;
024    import org.apache.commons.digester3.annotations.rules.CallParam;
025    import org.apache.commons.digester3.binder.CallParamBuilder;
026    import org.apache.commons.digester3.binder.RulesBinder;
027    
028    /**
029     * {@link CallParam} handler.
030     *
031     * @since 3.0
032     */
033    public final class CallParamHandler
034        implements AnnotationHandler<CallParam, MethodArgument>
035    {
036    
037        /**
038         * {@inheritDoc}
039         */
040        public void handle( CallParam annotation, MethodArgument element, RulesBinder rulesBinder )
041        {
042            CallParamBuilder builder = rulesBinder
043                .forPattern( annotation.pattern() )
044                .withNamespaceURI( annotation.namespaceURI() )
045                .callParam()
046                .ofIndex( element.getIndex() )
047                .fromAttribute( annotation.attributeName().length() > 0 ? annotation.attributeName() : null );
048    
049            if ( annotation.fromStack() )
050            {
051                builder.withStackIndex( annotation.stackIndex() );
052            }
053        }
054    
055    }