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
24import java.io.BufferedReader;
25import java.io.InputStreamReader;
26import javax.print.PrintService;
27import javax.print.PrintServiceLookup;
28import javax.print.attribute.AttributeSet;
29import javax.print.attribute.HashAttributeSet;
30import javax.print.attribute.standard.PrinterName;
31
32/*
33 * @test
34 * @bug 8032693
35 * @summary Test that lpstat and JDK agree whether there are printers.
36 */
37public class CountPrintServices {
38
39  public static void main(String[] args) throws Exception {
40    String os = System.getProperty("os.name").toLowerCase();
41    System.out.println("OS is " + os);
42    if (!os.equals("linux")) {
43        System.out.println("Linux specific test. No need to continue");
44        return;
45    }
46    PrintService services[] =
47        PrintServiceLookup.lookupPrintServices(null, null);
48    if (services.length > 0) {
49       System.out.println("Services found. No need to test further.");
50       return;
51    }
52    String[] lpcmd = { "lpstat", "-a" };
53    Process proc = Runtime.getRuntime().exec(lpcmd);
54    proc.waitFor();
55    InputStreamReader ir = new InputStreamReader(proc.getInputStream());
56    BufferedReader br = new BufferedReader(ir);
57    int count = 0;
58    String printer;
59    while ((printer = br.readLine()) != null) {
60       System.out.println("lpstat:: " + printer);
61       count++;
62    }
63    if (count > 0) {
64        throw new RuntimeException("Services exist, but not found by JDK.");
65    }
66 }
67}
68
69