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