private void loadArgs(String[] args) throws ParameterProblem {
logger.debug("Parsing command line arguments");
final CommandLineParser parser = new PosixParser();
final Opts opts = new Opts();
final CommandLine line;
try {
line = parser.parse(opts.getOptions(), args);
} catch (ParseException e) {
throw new ParameterProblem(e.getMessage(), e);
}
// figure action first
AdminAction theAction = null;
for (AdminAction a : AdminAction.values()) {
if (line.hasOption(a.option())) {
if (theAction == null) {
theAction = a;
} else {
throw new ParameterProblem("You may only specify a single action");
}
}
}
if (theAction == null) {
throw new ParameterProblem("You must specify an action");
}
this.action = theAction;
logger.debug("Action: " + theAction);
// short circuit for --help arg
if (theAction == AdminAction.Help) {
return;
}
// then action-specific arguments
if (theAction == AdminAction.AddNodes || theAction == AdminAction.UpdateNodes) {
this.hosts = parseHosts(line.getOptionValue(theAction.option()));
if (line.hasOption(Opts.MEMORY)) {
final String memString = line.getOptionValue(Opts.MEMORY);
if (memString == null || memString.trim().length() == 0) {
throw new ParameterProblem("Node memory value is empty");
}
this.nodeMemory = parseMemory(memString);
this.nodeMemoryConfigured = true;
}
if (line.hasOption(Opts.NETWORKS)) {
this.nodeNetworks = line.getOptionValue(Opts.NETWORKS);
}
if (line.hasOption(Opts.POOL)) {
String pool = line.getOptionValue(Opts.POOL);
if (pool == null || pool.trim().length() == 0) {
throw new ParameterProblem("Node pool value is empty");
}
this.nodePool = pool.trim();
}
final boolean active = line.hasOption(Opts.ACTIVE);
final boolean inactive = line.hasOption(Opts.INACTIVE);
if (active && inactive) {
throw new ParameterProblem(
"You cannot specify both " + Opts.ACTIVE_LONG + " and " + Opts.INACTIVE_LONG);
}
if (active) {
this.nodeActiveConfigured = true;
}
if (inactive) {
this.nodeActive = false;
this.nodeActiveConfigured = true;
}
} else if (theAction == AdminAction.RemoveNodes) {
this.hosts = parseHosts(line.getOptionValue(theAction.option()));
} else if (theAction == AdminAction.ListNodes) {
final String hostArg = line.getOptionValue(AdminAction.ListNodes.option());
if (hostArg != null) {
this.hosts = parseHosts(hostArg);
}
} else if (theAction == AdminAction.PoolAvailability) {
if (line.hasOption(Opts.POOL)) {
final String pool = line.getOptionValue(Opts.POOL);
if (pool == null || pool.trim().length() == 0) {
throw new ParameterProblem("Pool name value is empty");
}
this.nodePool = pool;
}
if (line.hasOption(Opts.FREE)) {
this.inUse = RemoteNodeManagement.FREE_ENTRIES;
}
if (line.hasOption(Opts.USED)) {
this.inUse = RemoteNodeManagement.USED_ENTRIES;
}
}
// finally everything else
if (!line.hasOption(Opts.CONFIG)) {
throw new ParameterProblem(Opts.CONFIG_LONG + " option is required");
}
String config = line.getOptionValue(Opts.CONFIG);
if (config == null || config.trim().length() == 0) {
throw new ParameterProblem("Config file path is invalid");
}
super.configPath = config.trim();
final boolean batchMode = line.hasOption(Opts.BATCH);
final boolean json = line.hasOption(Opts.JSON);
final Reporter.OutputMode mode;
if (batchMode && json) {
throw new ParameterProblem(
"You cannot specify both " + Opts.BATCH_LONG + " and " + Opts.JSON_LONG);
} else if (batchMode) {
mode = Reporter.OutputMode.Batch;
} else if (json) {
mode = Reporter.OutputMode.Json;
} else {
mode = Reporter.OutputMode.Friendly;
}
final String[] fields;
if (line.hasOption(Opts.REPORT)) {
fields = parseFields(line.getOptionValue(Opts.REPORT), theAction);
} else {
fields = theAction.fields();
}
String delimiter = null;
if (line.hasOption(Opts.DELIMITER)) {
delimiter = line.getOptionValue(Opts.DELIMITER);
}
this.reporter = new Reporter(mode, fields, delimiter);
if (line.hasOption(Opts.OUTPUT)) {
final String filename = line.getOptionValue(Opts.OUTPUT);
final File f = new File(filename);
try {
this.outStream = new FileOutputStream(f);
} catch (FileNotFoundException e) {
throw new ParameterProblem(
"Specified output file could not be opened for writing: " + f.getAbsolutePath(), e);
}
} else {
this.outStream = System.out;
}
final List leftovers = line.getArgList();
if (leftovers != null && !leftovers.isEmpty()) {
throw new ParameterProblem(
"There are unrecognized arguments, check -h to make "
+ "sure you are doing the intended thing: "
+ leftovers.toString());
}
}
