Java tutorial
/** * <pre> * The MIT License (MIT) * * Copyright (c) 2014 Grzegorz Kochaski * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * </pre> */ package org.itest.impl; import org.apache.commons.lang.ClassUtils; import org.apache.commons.lang.StringEscapeUtils; import org.itest.exception.ITestException; import org.itest.exception.ITestInitializationException; import org.itest.param.ITestValueConverter; import java.sql.Time; import java.sql.Timestamp; import java.util.Date; public class ITestValueConverterImpl implements ITestValueConverter { @Override public <T> T convert(Class<T> clazz, String value) { Object res; if (null == value) { res = null; } else if (String.class == clazz || Object.class == clazz) { res = StringEscapeUtils.unescapeJava(value); } else if (Integer.class == clazz || int.class == clazz) { res = Integer.valueOf(value); } else if (Long.class == clazz || long.class == clazz) { res = Long.valueOf(value); } else if (Double.class == clazz || double.class == clazz) { res = Double.valueOf(value); } else if (Float.class == clazz || float.class == clazz) { res = Float.valueOf(value); } else if (Boolean.class == clazz || boolean.class == clazz) { res = Boolean.valueOf(value); } else if (Character.class == clazz || char.class == clazz) { value = StringEscapeUtils.unescapeJava(value); if (value.length() > 1) { throw new ITestInitializationException( "Character expected, found (" + value + ") " + value.length() + " characters.", null); } res = value.charAt(0); } else if (Date.class == clazz || Time.class == clazz || Timestamp.class == clazz || java.sql.Date.class == clazz) { Long milis = Long.valueOf(value); try { res = clazz.getConstructor(long.class).newInstance(milis); } catch (Exception e) { throw new ITestException("", e); } } else if (clazz.isEnum()) { res = Enum.valueOf((Class<Enum>) clazz, value); } else if (Class.class == clazz) { try { res = ClassUtils.getClass(getClass().getClassLoader(), value); } catch (ClassNotFoundException e) { throw new ITestInitializationException(value, e); } } else { throw new ITestInitializationException(clazz.getName() + "(" + value + ")", null); } return (T) res; } }