| /* |
| * |
| * 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.qpid.server.management.amqp; |
| |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| |
| class ManagementInputConverter |
| { |
| private final ManagementNode _managementNode; |
| |
| ManagementInputConverter(final ManagementNode managementNode) |
| { |
| _managementNode = managementNode; |
| } |
| |
| <T> T convert(Class<T> clazz, Object input) |
| { |
| if (input == null) |
| { |
| return null; |
| } |
| else |
| { |
| if (clazz.isAssignableFrom(input.getClass())) |
| { |
| return (T) input; |
| } |
| else |
| { |
| if (Number.class.isAssignableFrom(clazz)) |
| { |
| if (input instanceof Number) |
| { |
| return convertToNumberClass(clazz, (Number) input); |
| } |
| else if (input instanceof String) |
| { |
| return convertToNumberClass(clazz, (String) input); |
| } |
| else |
| { |
| throw new IllegalArgumentException("Do not know how to convert type " + input.getClass().getName() + " to a number"); |
| } |
| } |
| else if(String.class == clazz) |
| { |
| return (T) input.toString(); |
| } |
| else if(Collection.class.isAssignableFrom(clazz) || Map.class.isAssignableFrom(clazz)) |
| { |
| ObjectMapper objectMapper = new ObjectMapper(); |
| try |
| { |
| return objectMapper.readValue(input.toString(), clazz); |
| } |
| catch (IOException e) |
| { |
| throw new IllegalArgumentException("Cannot convert String '" |
| + input.toString() + "' to a " + clazz.getSimpleName()); |
| } |
| } |
| else |
| { |
| throw new IllegalArgumentException("Do not know how to convert to type " + clazz.getSimpleName()); |
| } |
| } |
| } |
| } |
| |
| private <N> N convertToNumberClass(final Class<N> clazz, final Number number) |
| { |
| if (clazz == Byte.class || clazz == Byte.TYPE) |
| { |
| return (N) new Byte(number.byteValue()); |
| } |
| else if (clazz == Short.class || clazz == Short.TYPE) |
| { |
| return (N) new Short(number.shortValue()); |
| } |
| else if (clazz == Integer.class || clazz == Integer.TYPE) |
| { |
| return (N) new Integer(number.intValue()); |
| } |
| else if (clazz == Long.class || clazz == Long.TYPE) |
| { |
| return (N) new Long(number.longValue()); |
| } |
| else if (clazz == Float.class || clazz == Float.TYPE) |
| { |
| return (N) new Float(number.floatValue()); |
| } |
| else if (clazz == Double.class || clazz == Double.TYPE) |
| { |
| return (N) new Double(number.doubleValue()); |
| } |
| else |
| { |
| throw new IllegalArgumentException("Do not know how to convert to type " + clazz.getSimpleName()); |
| } |
| } |
| |
| private <N> N convertToNumberClass(final Class<N> clazz, final String number) |
| { |
| if (clazz == Byte.class || clazz == Byte.TYPE) |
| { |
| return (N) Byte.valueOf(number); |
| } |
| else if (clazz == Short.class || clazz == Short.TYPE) |
| { |
| return (N) Short.valueOf(number); |
| } |
| else if (clazz == Integer.class || clazz == Integer.TYPE) |
| { |
| return (N) Integer.valueOf(number); |
| } |
| else if (clazz == Long.class || clazz == Long.TYPE) |
| { |
| return (N) Long.valueOf(number); |
| } |
| else if (clazz == Float.class || clazz == Float.TYPE) |
| { |
| return (N) Float.valueOf(number); |
| } |
| else if (clazz == Double.class || clazz == Double.TYPE) |
| { |
| return (N) Double.valueOf(number); |
| } |
| else |
| { |
| throw new IllegalArgumentException("Do not know how to convert to type " + clazz.getSimpleName()); |
| } |
| } |
| } |