processbuilder

How can I run a subprocess in Equinox with dynamic bundle installation?

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you can use the Equinox Launcher API. Here’s an example of how you can use the Equinox Launcher api to launch a new instance of equinox with a set of bundles: ` EquinoxLauncher launcher = new EquinoxLauncher(); String equinoxHome = “/path/to/equinox/home”; String[] bundlePaths = { “/path/to/bundle1.jar”, “/path/to/bundle2.jar” }; EquinoxRunConfiguration runConfig = launcher.newConfiguration(); runConfig.setWorkingDir(new File(equinoxHome)); runConfig.setFramework(new … Read more

How to set working directory with ProcessBuilder

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You are trying to execute /home and it is not an executable file. The constructor argument of the process builder is the command to execute. You want to set the working directory. You can that it via the directory method. Here is a complete example: Process p = null; ProcessBuilder pb = new ProcessBuilder(“do_foo.sh”); pb.directory(new … Read more

How to redirect ProcessBuilder’s output to a string?

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Read from the InputStream. You can append the output to a StringBuilder: BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream())); StringBuilder builder = new StringBuilder(); String line = null; while ( (line = reader.readLine()) != null) { builder.append(line); builder.append(System.getProperty(“line.separator”)); } String result = builder.toString();

ProcessBuilder: Forwarding stdout and stderr of started processes without blocking the main thread

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Use ProcessBuilder.inheritIO, it sets the source and destination for subprocess standard I/O to be the same as those of the current Java process. Process p = new ProcessBuilder().inheritIO().command(“command1”).start(); If Java 7 is not an option public static void main(String[] args) throws Exception { Process p = Runtime.getRuntime().exec(“cmd /c dir”); inheritIO(p.getInputStream(), System.out); inheritIO(p.getErrorStream(), System.err); } private … Read more

Difference between ProcessBuilder and Runtime.exec()

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The various overloads of Runtime.getRuntime().exec(…) take either an array of strings or a single string. The single-string overloads of exec() will tokenise the string into an array of arguments, before passing the string array onto one of the exec() overloads that takes a string array. The ProcessBuilder constructors, on the other hand, only take a … Read more