001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.impl.converter;
018    
019    import java.lang.reflect.Method;
020    
021    import org.apache.camel.Exchange;
022    import org.apache.camel.TypeConverter;
023    import org.apache.camel.support.TypeConverterSupport;
024    import org.apache.camel.util.ObjectHelper;
025    
026    /**
027     * A {@link TypeConverter} implementation which invokes a static method to convert from a type to another type
028     *
029     * @version 
030     */
031    public class StaticMethodTypeConverter extends TypeConverterSupport {
032        private final Method method;
033        private final boolean useExchange;
034    
035        public StaticMethodTypeConverter(Method method) {
036            this.method = method;
037            this.useExchange = method.getParameterTypes().length == 2;
038        }
039    
040        @Override
041        public String toString() {
042            return "StaticMethodTypeConverter: " + method;
043        }
044    
045        @SuppressWarnings("unchecked")
046        public <T> T convertTo(Class<T> type, Exchange exchange, Object value) {
047            return useExchange ? (T)ObjectHelper.invokeMethod(method, null, value, exchange)
048                : (T)ObjectHelper.invokeMethod(method, null, value);
049        }
050    
051    }