jdk-24/test/hotspot/jtreg/serviceability/tmtools/share/common/ToolRunner.java
2019-11-18 16:03:51 -08:00

66 lines
2.6 KiB
Java

/*
* Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package common;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.time.Instant;
/**
* This class starts a process specified by the passed command line waits till
* the process completes and returns the process exit code and stdout and stderr
* output as ToolResults
*/
class ToolRunner {
private final String[] cmdArgs;
ToolRunner(String cmdLine) {
cmdArgs = cmdLine.split(" +");
}
/**
* Starts the process, waits for the process completion and returns the
* results
*
* @return process results
* @throws Exception if anything goes wrong
*/
ToolResults runToCompletion() throws Exception {
ProcessBuilder pb = new ProcessBuilder(cmdArgs);
Path out = Files.createTempFile(Paths.get("."), "out.", ".txt");
Path err = out.resolveSibling(out.getFileName().toString().replaceFirst("out", "err"));
Process p = pb.redirectOutput(ProcessBuilder.Redirect.to(out.toFile()))
.redirectError(ProcessBuilder.Redirect.to(err.toFile()))
.start();
System.out.printf("[%s] started process %d %s with out/err redirected to '%s' and '%s'%n",
Instant.now().toString(), p.pid(), pb.command(), out.toString(), err.toString());
int exitCode = p.waitFor();
System.out.printf("[%s] process %d finished with exit code = %d%n",
Instant.now().toString(), p.pid(), exitCode);
return new ToolResults(exitCode, Files.readAllLines(out), Files.readAllLines(err));
}
}