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     * An exception thrown if a value could not be converted to the required type
021     *
022     * @version $Revision: 775486 $
023     */
024    public class NoTypeConversionAvailableException extends CamelException {
025        private final transient Object value;
026        private final transient Class type;
027    
028        public NoTypeConversionAvailableException(Object value, Class type) {
029            super(createMessage(value, type));
030            this.value = value;
031            this.type = type;
032        }
033    
034        public NoTypeConversionAvailableException(Object value, Class type, Throwable cause) {
035            this(value, type);
036            initCause(cause);
037        }
038    
039        /**
040         * Returns the value which could not be converted
041         */
042        public Object getValue() {
043            return value;
044        }
045    
046        /**
047         * Returns the required <tt>to</tt> type
048         */
049        public Class getToType() {
050            return type;
051        }
052    
053        /**
054         * Returns the required <tt>from</tt> type.
055         * Returns <tt>null</tt> if the provided value was null.
056         */
057        public Class getFromType() {
058            if (value != null) {
059                return value.getClass();
060            } else {
061                return null;
062            }
063        }
064    
065        /**
066         * Returns an error message for no type converter available.
067         */
068        public static String createMessage(Object value, Class type) {
069            return "No type converter available to convert from type: " + (value != null ? value.getClass().getCanonicalName() : null)
070                  + " to the required type: " + type.getCanonicalName() + " with value " + value;
071        }
072    
073    }