001/* 002 * (C) Copyright 2006-2010 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * bstefanescu 016 */ 017package org.nuxeo.shell.impl; 018 019import org.nuxeo.shell.CommandRegistry; 020import org.nuxeo.shell.CommandType; 021import org.nuxeo.shell.Shell; 022import org.nuxeo.shell.ShellException; 023import org.nuxeo.shell.ValueAdapter; 024 025/** 026 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 027 */ 028public class DefaultValueAdapter implements ValueAdapter { 029 030 @SuppressWarnings("unchecked") 031 public <T> T getValue(Shell shell, Class<T> type, String value) { 032 if (type == CharSequence.class || type == String.class) { 033 return (T) value; 034 } 035 if (type.isPrimitive()) { 036 if (type == Boolean.TYPE) { 037 return (T) Boolean.valueOf(value); 038 } else if (type == Integer.TYPE) { 039 return (T) Integer.valueOf(value); 040 } else if (type == Float.TYPE) { 041 return (T) Float.valueOf(value); 042 } else if (type == Long.TYPE) { 043 return (T) Long.valueOf(value); 044 } else if (type == Double.TYPE) { 045 return (T) Double.valueOf(value); 046 } else if (type == Character.TYPE) { 047 return (T) (Character.valueOf(value == null || value.length() == 0 ? '\0' : value.charAt(0))); 048 } 049 } else if (type == Boolean.class) { 050 return (T) Boolean.valueOf(value); 051 } else if (Number.class.isAssignableFrom(type)) { 052 if (type == Integer.class) { 053 return (T) Integer.valueOf(value); 054 } else if (type == Float.class) { 055 return (T) Float.valueOf(value); 056 } else if (type == Long.class) { 057 return (T) Long.valueOf(value); 058 } else if (type == Double.class) { 059 return (T) Double.valueOf(value); 060 } 061 } else if (type == Character.class) { 062 return (T) (Character.valueOf(value == null || value.length() == 0 ? '\0' : value.charAt(0))); 063 } else if (CommandType.class.isAssignableFrom(type)) { 064 CommandType cmd = shell.getActiveRegistry().getCommandType(value); 065 if (cmd == null) { 066 throw new ShellException("Unknown command: " + value); 067 } 068 return (T) cmd; 069 } else if (CommandRegistry.class.isAssignableFrom(type)) { 070 CommandRegistry reg = shell.getRegistry(value); 071 if (reg == null) { 072 throw new ShellException("Unknown namespace: " + value); 073 } 074 return (T) reg; 075 } 076 return null; 077 078 } 079 080}