| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.converter; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| import org.apache.camel.Converter; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.util.ObjectHelper; |
| |
| /** |
| * Some core java.lang based <a |
| * href="http://camel.apache.org/type-converter.html">Type Converters</a> |
| * |
| * @version |
| */ |
| @Converter |
| public final class ObjectConverter { |
| |
| /** |
| * Utility classes should not have a public constructor. |
| */ |
| private ObjectConverter() { |
| } |
| |
| public static boolean isCollection(Object value) { |
| return value instanceof Collection || (value != null && value.getClass().isArray()); |
| } |
| |
| /** |
| * Converts the given value to a boolean, handling strings or Boolean |
| * objects; otherwise returning false if the value could not be converted to |
| * a boolean |
| */ |
| @Converter |
| public static boolean toBool(Object value) { |
| Boolean answer = toBoolean(value); |
| return answer != null && answer; |
| } |
| |
| /** |
| * Converts the given value to a Boolean, handling strings or Boolean |
| * objects; otherwise returning null if the value cannot be converted to a |
| * boolean |
| */ |
| @Converter |
| public static Boolean toBoolean(Object value) { |
| return ObjectHelper.toBoolean(value); |
| } |
| |
| /** |
| * Creates an iterator over the value |
| */ |
| @SuppressWarnings("rawtypes") |
| @Converter |
| public static Iterator iterator(Object value) { |
| return ObjectHelper.createIterator(value); |
| } |
| |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @Converter |
| public static Byte toByte(Object value) { |
| if (value instanceof Byte) { |
| return (Byte) value; |
| } else if (value instanceof Number) { |
| Number number = (Number) value; |
| return number.byteValue(); |
| } else if (value instanceof String) { |
| return Byte.valueOf((String) value); |
| } else { |
| return null; |
| } |
| } |
| |
| @Converter |
| public static char[] toCharArray(String value) { |
| return value.toCharArray(); |
| } |
| |
| @Converter |
| public static char toChar(String value) { |
| // must be 1 length string |
| if (value == null || value.length() != 1) { |
| throw new IllegalArgumentException("String must have exactly a length of 1: " + value); |
| } |
| return value.toCharArray()[0]; |
| } |
| |
| @Converter |
| public static String fromCharArray(char[] value) { |
| return new String(value); |
| } |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @SuppressWarnings("rawtypes") |
| @Converter |
| public static Class toClass(Object value, Exchange exchange) { |
| if (value instanceof Class) { |
| return (Class) value; |
| } else if (value instanceof String) { |
| // prefer to use class resolver API |
| if (exchange != null) { |
| return exchange.getContext().getClassResolver().resolveClass((String) value); |
| } else { |
| return ObjectHelper.loadClass((String) value); |
| } |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @Converter |
| public static Short toShort(Object value) { |
| if (value instanceof Short) { |
| return (Short) value; |
| } else if (value instanceof Number) { |
| Number number = (Number) value; |
| return number.shortValue(); |
| } else if (value instanceof String) { |
| return Short.valueOf((String) value); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @Converter |
| public static Integer toInteger(Object value) { |
| if (value instanceof Integer) { |
| return (Integer) value; |
| } else if (value instanceof Number) { |
| Number number = (Number) value; |
| return number.intValue(); |
| } else if (value instanceof String) { |
| return Integer.valueOf((String) value); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @Converter |
| public static Long toLong(Object value) { |
| if (value instanceof Long) { |
| return (Long) value; |
| } else if (value instanceof Number) { |
| Number number = (Number) value; |
| return number.longValue(); |
| } else if (value instanceof String) { |
| return Long.valueOf((String) value); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @Converter |
| public static Float toFloat(Object value) { |
| if (value instanceof Float) { |
| return (Float) value; |
| } else if (value instanceof Number) { |
| Number number = (Number) value; |
| return number.floatValue(); |
| } else if (value instanceof String) { |
| return Float.valueOf((String) value); |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns the converted value, or null if the value is null |
| */ |
| @Converter |
| public static Double toDouble(Object value) { |
| if (value instanceof Double) { |
| return (Double) value; |
| } else if (value instanceof Number) { |
| Number number = (Number) value; |
| return number.doubleValue(); |
| } else if (value instanceof String) { |
| return Double.valueOf((String) value); |
| } else { |
| return null; |
| } |
| } |
| |
| @Converter |
| public static String toString(Integer value) { |
| return value.toString(); |
| } |
| |
| @Converter |
| public static String toString(Long value) { |
| return value.toString(); |
| } |
| |
| @Converter |
| public static String toString(Boolean value) { |
| return value.toString(); |
| } |
| |
| @Converter |
| public static String toString(StringBuffer value) { |
| return value.toString(); |
| } |
| |
| @Converter |
| public static String toString(StringBuilder value) { |
| return value.toString(); |
| } |
| |
| } |