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 */
017package org.apache.camel;
018
019/**
020 * Exception when failing during type conversion.
021 *
022 * @version 
023 */
024public 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