Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
EnvarBasedValueSource |
|
| 1.6666666666666667;1,667 |
1 | package org.codehaus.plexus.util.interpolation; | |
2 | ||
3 | /* | |
4 | * Licensed to the Apache Software Foundation (ASF) under one | |
5 | * or more contributor license agreements. See the NOTICE file | |
6 | * distributed with this work for additional information | |
7 | * regarding copyright ownership. The ASF licenses this file | |
8 | * to you under the Apache License, Version 2.0 (the | |
9 | * "License"); you may not use this file except in compliance | |
10 | * with the License. You may obtain a copy of the License at | |
11 | * | |
12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
13 | * | |
14 | * Unless required by applicable law or agreed to in writing, | |
15 | * software distributed under the License is distributed on an | |
16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
17 | * KIND, either express or implied. See the License for the | |
18 | * specific language governing permissions and limitations | |
19 | * under the License. | |
20 | */ | |
21 | ||
22 | import org.codehaus.plexus.util.cli.CommandLineUtils; | |
23 | ||
24 | import java.io.IOException; | |
25 | import java.util.Properties; | |
26 | ||
27 | public class EnvarBasedValueSource | |
28 | implements ValueSource | |
29 | { | |
30 | ||
31 | private Properties envars; | |
32 | private final boolean caseSensitive; | |
33 | ||
34 | /** | |
35 | * Create a new value source for interpolation based on shell environment variables. In this | |
36 | * case, envar keys ARE CASE SENSITIVE. | |
37 | * | |
38 | * @throws IOException | |
39 | */ | |
40 | public EnvarBasedValueSource() throws IOException | |
41 | { | |
42 | 0 | this( true ); |
43 | 0 | } |
44 | ||
45 | /** | |
46 | * Create a new value source for interpolation based on shell environment variables. | |
47 | * | |
48 | * @param caseSensitive Whether the environment variable key should be treated in a | |
49 | * case-sensitive manner for lookups | |
50 | * @throws IOException | |
51 | */ | |
52 | public EnvarBasedValueSource( boolean caseSensitive ) throws IOException | |
53 | 0 | { |
54 | 0 | this.caseSensitive = caseSensitive; |
55 | ||
56 | 0 | envars = CommandLineUtils.getSystemEnvVars( caseSensitive ); |
57 | 0 | } |
58 | ||
59 | public Object getValue( String expression ) | |
60 | { | |
61 | 0 | String expr = expression; |
62 | ||
63 | 0 | if ( expr.startsWith( "env." ) ) |
64 | { | |
65 | 0 | expr = expr.substring( "env.".length() ); |
66 | } | |
67 | ||
68 | 0 | if ( !caseSensitive ) |
69 | { | |
70 | 0 | expr = expr.toUpperCase(); |
71 | } | |
72 | ||
73 | 0 | return envars.getProperty( expr ); |
74 | } | |
75 | } |