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  * @summary Test that lpstat and JDK agree whether there are printers.
  36  */
  37 public 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     }
  45     PrintService services[] =
  46         PrintServiceLookup.lookupPrintServices(null, null);
  47     if (services.length > 0) {
  48        System.out.println("Services found. No need to test further.");
  49        return;
  50     }
  51     String[] lpcmd = { "lpstat", "-a" };
  52     Process proc = Runtime.getRuntime().exec(lpcmd);
  53     proc.waitFor();
  54     InputStreamReader ir = new InputStreamReader(proc.getInputStream());
  55     BufferedReader br = new BufferedReader(ir);
  56     int count = 0;
  57     String printer;
  58     while ((printer = br.readLine()) != null) {
  59        System.out.println("lpstat:: " + printer);
  60        count++;
  61     }
  62     if (count > 0) {
  63         throw new RuntimeException("Services exist, but not found by JDK.");
  64     }
  65  }
  66 }
  67