public static void clearFolder(File folder) { if (folder.exists()) { for (File child : folder.listFiles()) { if (child.isDirectory()) clearFolder(child); if (!child.delete()) throw new RuntimeException("Cannot delete " + child); } } }
public static void main(String[] args) throws Exception { // Can be necessary to run in parallel to other clouds, so find open ports int[] ports = new int[3]; int port = 54321; for( int i = 0; i < ports.length; i++ ) { for( ;; ) { if( isOpen(port) && isOpen(port + 1) ) { ports[i] = port; port += 2; break; } port++; } } String flat = ""; for( int i = 0; i < ports.length; i++ ) flat += "127.0.0.1:" + ports[i] + "\n"; // Force all IPs to local so that users can run with a firewall String[] a = new String[] { "-ip", "127.0.0.1", "-flatfile", Utils.writeFile(flat).getAbsolutePath() }; H2O.OPT_ARGS.ip = "127.0.0.1"; args = (String[]) ArrayUtils.addAll(a, args); ArrayList<Node> nodes = new ArrayList<Node>(); for( int i = 1; i < ports.length; i++ ) nodes.add(new NodeVM(Utils.append(args, "-port", "" + ports[i]))); args = Utils.append(new String[] { "-mainClass", Master.class.getName() }, args); Node master = new NodeVM(Utils.append(args, "-port", "" + ports[0])); nodes.add(master); File out = null, err = null, sandbox = new File("sandbox"); sandbox.mkdirs(); Utils.clearFolder(sandbox); for( int i = 0; i < nodes.size(); i++ ) { out = File.createTempFile("junit-" + i + "-out-", null, sandbox); err = File.createTempFile("junit-" + i + "-err-", null, sandbox); nodes.get(i).persistIO(out.getAbsolutePath(), err.getAbsolutePath()); nodes.get(i).start(); } int exit = master.waitFor(); if( exit != 0 ) { Log.log(out, System.out); Thread.sleep(100); // Or mixed (?) Log.log(err, System.err); } for( Node node : nodes ) node.kill(); if( exit == 0 ) System.out.println("OK"); System.exit(exit); }
public static void clearFolder(String folder) { clearFolder(new File(folder)); }