1 /*** 2 * 3 * Copyright 2004 Protique Ltd 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 **/ 18 package org.codehaus.activemq.util; 19 20 import java.util.Map; 21 22 /*** 23 * A bunch of utility methods for working with maps 24 * 25 * @version $Revision: 1.1 $ 26 */ 27 public class MapHelper { 28 /*** 29 * Extracts the value from the map and coerces to a String 30 */ 31 public static String getString(Map map, String key) { 32 Object answer = map.get(key); 33 return (answer != null) ? answer.toString() : null; 34 } 35 36 /*** 37 * Extracts the value from the map and coerces to an int value 38 * or returns a default value if one could not be found or coerced 39 */ 40 public static int getInt(Map map, String key, int defaultValue) { 41 Object value = map.get(key); 42 if (value instanceof Number) { 43 return ((Number) value).intValue(); 44 } 45 else if (value instanceof String) { 46 return Integer.parseInt((String) value); 47 } 48 return defaultValue; 49 } 50 }