View Javadoc
1   /*
2    * JBoss, Home of Professional Open Source
3    * Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual
4    * contributors by the @authors tag. See the copyright.txt in the
5    * distribution for a full listing of individual contributors.
6    *
7    * Licensed under the Apache License, Version 2.0 (the "License");
8    * you may not use this file except in compliance with the License.
9    * You may obtain a copy of the License at
10   * http://www.apache.org/licenses/LICENSE-2.0
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  package org.jboss.as.quickstarts.temperatureconverter.ejb;
18  
19  /**
20   * The temperature scale.
21   * 
22   * @author Pete Muir
23   * 
24   */
25  public enum Scale {
26  
27      CELSIUS("\u2103"), FAHRENHEIT("\u2109");
28  
29      private final String symbol;
30  
31      /**
32       * Constructor for a scale, taking the symbol used to represent the temperature scale.
33       * 
34       * @param symbol
35       */
36      private Scale(String symbol) {
37          this.symbol = symbol;
38      }
39  
40      public static Scale valueOfAbbreviation(String value) {
41          if (value == null) {
42              throw new IllegalArgumentException("value must not be null");
43          } else if ("C".equals(value.toUpperCase())) {
44              return CELSIUS;
45          } else if ("F".equals(value.toUpperCase())) {
46              return FAHRENHEIT;
47          } else {
48              throw new IllegalArgumentException(value + " not recognized as a valid scale");
49          }
50      }
51  
52      public String getSymbol() {
53          return symbol;
54      }
55  
56  }