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examples.finger |
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1 | /* |
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2 | * Copyright 2001-2005 The Apache Software Foundation |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | package examples; |
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17 | ||
18 | import java.io.IOException; |
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19 | import java.net.InetAddress; |
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20 | import java.net.UnknownHostException; |
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21 | import org.apache.commons.net.FingerClient; |
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22 | ||
23 | /*** |
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24 | * This is an example of how you would implement the finger command |
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25 | * in Java using NetComponents. The Java version is much shorter. |
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26 | * But keep in mind that the Unix finger command reads all sorts of |
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27 | * local files to output local finger information. This program only |
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28 | * queries the finger daemon. |
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29 | * <p> |
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30 | * The -l flag is used to request long output from the server. |
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31 | * <p> |
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32 | ***/ |
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33 | 0 | public final class finger |
34 | { |
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35 | ||
36 | public static final void main(String[] args) |
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37 | { |
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38 | 0 | boolean longOutput = false; |
39 | 0 | int arg = 0, index; |
40 | String handle, host; |
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41 | FingerClient finger; |
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42 | 0 | InetAddress address = null; |
43 | ||
44 | // Get flags. If an invalid flag is present, exit with usage message. |
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45 | 0 | while (arg < args.length && args[arg].startsWith("-")) |
46 | { |
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47 | 0 | if (args[arg].equals("-l")) |
48 | 0 | longOutput = true; |
49 | else |
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50 | { |
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51 | 0 | System.err.println("usage: finger [-l] [[[handle][@<server>]] ...]"); |
52 | 0 | System.exit(1); |
53 | } |
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54 | 0 | ++arg; |
55 | } |
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56 | ||
57 | ||
58 | 0 | finger = new FingerClient(); |
59 | // We want to timeout if a response takes longer than 60 seconds |
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60 | 0 | finger.setDefaultTimeout(60000); |
61 | ||
62 | 0 | if (arg >= args.length) |
63 | { |
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64 | // Finger local host |
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65 | ||
66 | try |
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67 | { |
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68 | 0 | address = InetAddress.getLocalHost(); |
69 | } |
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70 | 0 | catch (UnknownHostException e) |
71 | { |
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72 | 0 | System.err.println("Error unknown host: " + e.getMessage()); |
73 | 0 | System.exit(1); |
74 | 0 | } |
75 | ||
76 | try |
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77 | { |
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78 | 0 | finger.connect(address); |
79 | 0 | System.out.print(finger.query(longOutput)); |
80 | 0 | finger.disconnect(); |
81 | } |
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82 | 0 | catch (IOException e) |
83 | { |
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84 | 0 | System.err.println("Error I/O exception: " + e.getMessage()); |
85 | 0 | System.exit(1); |
86 | 0 | } |
87 | ||
88 | 0 | return ; |
89 | } |
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90 | ||
91 | // Finger each argument |
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92 | 0 | while (arg < args.length) |
93 | { |
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94 | ||
95 | 0 | index = args[arg].lastIndexOf("@"); |
96 | ||
97 | 0 | if (index == -1) |
98 | { |
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99 | 0 | handle = args[arg]; |
100 | try |
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101 | { |
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102 | 0 | address = InetAddress.getLocalHost(); |
103 | } |
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104 | 0 | catch (UnknownHostException e) |
105 | { |
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106 | 0 | System.err.println("Error unknown host: " + e.getMessage()); |
107 | 0 | System.exit(1); |
108 | 0 | } |
109 | } |
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110 | else |
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111 | { |
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112 | 0 | handle = args[arg].substring(0, index); |
113 | 0 | host = args[arg].substring(index + 1); |
114 | ||
115 | try |
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116 | { |
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117 | 0 | address = InetAddress.getByName(host); |
118 | } |
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119 | 0 | catch (UnknownHostException e) |
120 | { |
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121 | 0 | System.err.println("Error unknown host: " + e.getMessage()); |
122 | 0 | System.exit(1); |
123 | 0 | } |
124 | } |
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125 | ||
126 | 0 | System.out.println("[" + address.getHostName() + "]"); |
127 | ||
128 | try |
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129 | { |
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130 | 0 | finger.connect(address); |
131 | 0 | System.out.print(finger.query(longOutput, handle)); |
132 | 0 | finger.disconnect(); |
133 | } |
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134 | 0 | catch (IOException e) |
135 | { |
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136 | 0 | System.err.println("Error I/O exception: " + e.getMessage()); |
137 | 0 | System.exit(1); |
138 | 0 | } |
139 | ||
140 | 0 | ++arg; |
141 | 0 | if (arg != args.length) |
142 | 0 | System.out.print("\n"); |
143 | } |
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144 | 0 | } |
145 | } |
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146 |
This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |