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;
018    
019    /**
020     * Exception when failing during type conversion.
021     *
022     * @version 
023     */
024    public class TypeConversionException extends RuntimeCamelException {
025        private static final long serialVersionUID = -6118520819865759886L;
026    
027        private final transient Object value;
028        private final transient Class<?> type;
029    
030        public TypeConversionException(Object value, Class<?> type, Throwable cause) {
031            super(createMessage(value, type, cause), cause);
032            this.value = value;
033            this.type = type;
034        }
035    
036        /**
037         * Returns the value which could not be converted
038         */
039        public Object getValue() {
040            return value;
041        }
042    
043        /**
044         * Returns the required <tt>to</tt> type
045         */
046        public Class<?> getToType() {
047            return type;
048        }
049    
050        /**
051         * Returns the required <tt>from</tt> type.
052         * Returns <tt>null</tt> if the provided value was null.
053         */
054        public Class<?> getFromType() {
055            if (value != null) {
056                return value.getClass();
057            } else {
058                return null;
059            }
060        }
061    
062        /**
063         * Returns an error message for type conversion failed.
064         */
065        public static String createMessage(Object value, Class<?> type, Throwable cause) {
066            return "Error during type conversion from type: " + (value != null ? value.getClass().getCanonicalName() : null)
067                    + " to the required type: " + type.getCanonicalName() + " with value " + value + " due " + cause.getMessage();
068        }
069    
070    }
071    
072