russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
73 lines
2.4 KiB
Java
73 lines
2.4 KiB
Java
/*
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* Copyright (c) 2014, 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import javax.print.PrintService;
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import javax.print.PrintServiceLookup;
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import java.io.IOException;
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import jtreg.SkippedException;
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/*
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* @test
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* @bug 8032693
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* @key printer
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* @library /test/lib/
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* @requires (os.family == "linux")
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* @summary Test that lpstat and JDK agree whether there are printers.
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*/
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public class CountPrintServices {
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public static void main(String[] args) throws Exception {
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PrintService services[] =
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PrintServiceLookup.lookupPrintServices(null, null);
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if (services.length > 0) {
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System.out.println("Services found. No need to test further.");
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return;
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}
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String[] lpcmd = { "lpstat", "-a" };
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Process proc;
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try {
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proc = Runtime.getRuntime().exec(lpcmd);
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} catch (IOException e) {
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if (e.getMessage().contains("No such file or directory")) {
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throw new SkippedException("Cannot find lpstat");
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} else {
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throw e;
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}
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}
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proc.waitFor();
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InputStreamReader ir = new InputStreamReader(proc.getInputStream());
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BufferedReader br = new BufferedReader(ir);
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int count = 0;
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String printer;
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while ((printer = br.readLine()) != null) {
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System.out.println("lpstat:: " + printer);
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count++;
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}
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if (count > 0) {
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throw new RuntimeException("Services exist, but not found by JDK.");
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}
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}
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}
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