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 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