1 /*
2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 import java.io.BufferedReader;
25 import java.io.InputStreamReader;
26 import javax.print.PrintService;
27 import javax.print.PrintServiceLookup;
28 import javax.print.attribute.AttributeSet;
29 import javax.print.attribute.HashAttributeSet;
30 import javax.print.attribute.standard.PrinterName;
31 
32 /*
33  * @test
34  * @bug 8032693
35  * @key printer
36  * @summary Test that lpstat and JDK agree whether there are printers.
37  */
38 public class CountPrintServices {
39 
main(String[] args)40   public static void main(String[] args) throws Exception {
41     String os = System.getProperty("os.name").toLowerCase();
42     System.out.println("OS is " + os);
43     if (!os.equals("linux")) {
44         System.out.println("Linux specific test. No need to continue");
45         return;
46     }
47     PrintService services[] =
48         PrintServiceLookup.lookupPrintServices(null, null);
49     if (services.length > 0) {
50        System.out.println("Services found. No need to test further.");
51        return;
52     }
53     String[] lpcmd = { "lpstat", "-a" };
54     Process proc = Runtime.getRuntime().exec(lpcmd);
55     proc.waitFor();
56     InputStreamReader ir = new InputStreamReader(proc.getInputStream());
57     BufferedReader br = new BufferedReader(ir);
58     int count = 0;
59     String printer;
60     while ((printer = br.readLine()) != null) {
61        System.out.println("lpstat:: " + printer);
62        count++;
63     }
64     if (count > 0) {
65         throw new RuntimeException("Services exist, but not found by JDK.");
66     }
67  }
68 }
69 
70