private void start(String[] arguments, CtrlCHandler signalHandler) {
Args args = new Args(arguments);
if (args.has("?") || args.has("h") || args.has("help") || args.has("usage")) {
printUsage();
return;
}
String path = args.get(ARG_PATH, null);
String host = args.get(ARG_HOST, null);
String port = args.get(ARG_PORT, null);
String name = args.get(ARG_NAME, null);
String pid = args.get(ARG_PID, null);
if ((path != null && (port != null || name != null || host != null || pid != null))
|| (pid != null && host != null)) {
System.err.println(
"You have supplied both "
+ ARG_PATH
+ " as well as "
+ ARG_HOST
+ "/"
+ ARG_PORT
+ "/"
+ ARG_NAME
+ ". "
+ "You should either supply only "
+ ARG_PATH
+ " or "
+ ARG_HOST
+ "/"
+ ARG_PORT
+ "/"
+ ARG_NAME
+ " so that either a local or "
+ "remote shell client can be started");
}
// Local
else if (path != null) {
try {
checkNeo4jDependency();
} catch (ShellException e) {
handleException(e, args);
}
startLocal(args, signalHandler);
}
// Remote
else {
String readonly = args.get(ARG_READONLY, null);
if (readonly != null) {
System.err.println(
"Warning: -" + ARG_READONLY + " is ignored unless you connect with -" + ARG_PATH + "!");
}
// Start server on the supplied process
if (pid != null) {
startServer(pid, args);
}
startRemote(args, signalHandler);
}
}
private void startServer(String pid, Args args) {
String port = args.get("port", Integer.toString(SimpleAppServer.DEFAULT_PORT));
String name = args.get("name", SimpleAppServer.DEFAULT_NAME);
try {
String jarfile =
new File(getClass().getProtectionDomain().getCodeSource().getLocation().toURI())
.getAbsolutePath();
Object vm = attachMethod.invoke(null, pid);
loadMethod.invoke(vm, jarfile, new ShellBootstrap(Integer.parseInt(port), name).serialize());
} catch (Exception e) {
handleException(e, args);
}
}
private void startRemote(Args args, CtrlCHandler signalHandler) {
try {
String host = args.get(ARG_HOST, "localhost");
int port = args.getNumber(ARG_PORT, SimpleAppServer.DEFAULT_PORT).intValue();
String name = args.get(ARG_NAME, SimpleAppServer.DEFAULT_NAME);
ShellClient client =
ShellLobby.newClient(
RmiLocation.location(host, port, name),
getSessionVariablesFromArgs(args),
signalHandler);
if (!isCommandLine(args)) {
System.out.println(
"NOTE: Remote Neo4j graph database service '" + name + "' at port " + port);
}
grabPromptOrJustExecuteCommand(client, args);
} catch (Exception e) {
handleException(e, args);
}
}
private void startLocal(Args args, CtrlCHandler signalHandler) {
String dbPath = args.get(ARG_PATH, null);
if (dbPath == null) {
System.err.println(
"ERROR: To start a local Neo4j service and a "
+ "shell client on top of that you need to supply a path to a "
+ "Neo4j store or just a new path where a new store will "
+ "be created if it doesn't exist. -"
+ ARG_PATH
+ " /my/path/here");
return;
}
try {
boolean readOnly = args.getBoolean(ARG_READONLY, false, true);
tryStartLocalServerAndClient(dbPath, readOnly, args, signalHandler);
} catch (Exception e) {
handleException(e, args);
}
System.exit(0);
}