001package 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
022import org.apache.commons.digester3.annotations.AnnotationHandler;
023import org.apache.commons.digester3.annotations.reflect.MethodArgument;
024import org.apache.commons.digester3.annotations.rules.CallParam;
025import org.apache.commons.digester3.binder.CallParamBuilder;
026import org.apache.commons.digester3.binder.RulesBinder;
027
028/**
029 * {@link CallParam} handler.
030 *
031 * @since 3.0
032 */
033public 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}