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 018package org.apache.commons.jxpath.util; 019 020import java.util.HashMap; 021 022/** 023 * Global type conversion utilities. 024 */ 025public class TypeUtils { 026 027 private static TypeConverter typeConverter = new BasicTypeConverter(); 028 private static final HashMap<Class, Class> PRIMITIVE_TYPE_MAP = new HashMap<>(); 029 static { 030 PRIMITIVE_TYPE_MAP.put(int.class, Integer.class); 031 PRIMITIVE_TYPE_MAP.put(byte.class, Byte.class); 032 PRIMITIVE_TYPE_MAP.put(short.class, Short.class); 033 PRIMITIVE_TYPE_MAP.put(char.class, Character.class); 034 PRIMITIVE_TYPE_MAP.put(long.class, Long.class); 035 PRIMITIVE_TYPE_MAP.put(float.class, Float.class); 036 PRIMITIVE_TYPE_MAP.put(double.class, Double.class); 037 PRIMITIVE_TYPE_MAP.put(boolean.class, Boolean.class); 038 } 039 040 /** 041 * Returns true if the global converter can convert the supplied object to the specified type. 042 * 043 * @param object object to test 044 * @param toType target class 045 * @return boolean 046 */ 047 public static boolean canConvert(final Object object, final Class toType) { 048 return typeConverter.canConvert(object, toType); 049 } 050 051 /** 052 * Converts the supplied object to the specified type. May throw a RuntimeException. 053 * 054 * @param object object to convert 055 * @param toType target class 056 * @return resulting Object 057 */ 058 public static Object convert(final Object object, final Class toType) { 059 return typeConverter.convert(object, toType); 060 } 061 062 /** 063 * Returns the current type converter. 064 * 065 * @return TypeConverter 066 */ 067 public static TypeConverter getTypeConverter() { 068 return typeConverter; 069 } 070 071 /** 072 * Install an alternative type converter. 073 * 074 * @param converter new TypeConverter 075 */ 076 public static synchronized void setTypeConverter(final TypeConverter converter) { 077 typeConverter = converter; 078 } 079 080 /** 081 * Return the appropriate wrapper type for the specified class. 082 * 083 * @param p Class for which to retrieve a wrapper class. 084 * @return the wrapper if {@code p} is primitive, else {@code p}. 085 * @since JXPath 1.3 086 */ 087 public static Class wrapPrimitive(final Class p) { 088 return p.isPrimitive() ? (Class) PRIMITIVE_TYPE_MAP.get(p) : p; 089 } 090 091 /** 092 * Constructs a new instance. 093 * 094 * @deprecated Will be private in the next major version. 095 */ 096 @Deprecated 097 public TypeUtils() { 098 // empty 099 } 100}