| /* |
| * Copyright The Apache Software Foundation |
| * |
| * 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.hadoop.hbase.util; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| |
| /** |
| * Utilities for class manipulation. |
| */ |
| @InterfaceAudience.Public |
| @InterfaceStability.Stable |
| public class Classes { |
| |
| /** |
| * Equivalent of {@link Class#forName(String)} which also returns classes for |
| * primitives like <code>boolean</code>, etc. |
| * |
| * @param className |
| * The name of the class to retrieve. Can be either a normal class or |
| * a primitive class. |
| * @return The class specified by <code>className</code> |
| * @throws ClassNotFoundException |
| * If the requested class can not be found. |
| */ |
| public static Class<?> extendedForName(String className) |
| throws ClassNotFoundException { |
| Class<?> valueType; |
| if (className.equals("boolean")) { |
| valueType = boolean.class; |
| } else if (className.equals("byte")) { |
| valueType = byte.class; |
| } else if (className.equals("short")) { |
| valueType = short.class; |
| } else if (className.equals("int")) { |
| valueType = int.class; |
| } else if (className.equals("long")) { |
| valueType = long.class; |
| } else if (className.equals("float")) { |
| valueType = float.class; |
| } else if (className.equals("double")) { |
| valueType = double.class; |
| } else if (className.equals("char")) { |
| valueType = char.class; |
| } else { |
| valueType = Class.forName(className); |
| } |
| return valueType; |
| } |
| |
| public static String stringify(Class[] classes) { |
| StringBuilder buf = new StringBuilder(); |
| if (classes != null) { |
| for (Class c : classes) { |
| if (buf.length() > 0) { |
| buf.append(","); |
| } |
| buf.append(c.getName()); |
| } |
| } else { |
| buf.append("NULL"); |
| } |
| return buf.toString(); |
| } |
| } |