Class NodeJsCmd

Get all the fields annotated with the @Arg facet.

Return a negative integer, zero, or a positive integer if this object is less than, equal to, or greater than the specified object:

this < that   =>  <0
this == that  =>  0
this > that   =>  >0
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This method may also be accessed via the < <= <=> >= and > shortcut operators. If not overridden the default implementation compares the toStr representations. Also see docLang.

Examples:

3.compare(8)  =>  -1
8.compare(3)  =>  1
8.compare(8)  =>  0
3 <=> 8       =>  -1  // shortcut for 3.compare(8)
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Compare this object to the specified for equality. This method may be accessed via the == and != shortcut operators. If not overridden the default implementation compares for reference equality using the === operator. If this method is overridden, then hash() must also be overridden such that any two objects which return true for equals() must return the same value for hash(). This method must accept null and return false.

Return a unique hashcode for this object. If a class overrides hash() then it must ensure if equals() returns true for any two objects then they have same hash code.

Print usage help.

Print usage help.

Home directory for the application. For a script this defaults to directory of the script. For pods the default is "{Env.cur.workDir}/etc/{pod}".

Return if this Obj is immutable and safe to share between threads:

• an instance of a const class
• the result of toImmutable on List, Map, or Buf
• a Func object may or may not be immutable - see sys::Func.
• other instances are assumed mutable and return false

Main performs the following tasks:

1. Calls parseArgs to parse command line
2. If args were incomplete or -help was specified then dump usage and return 1
3. Call run and return 0
4. If an exception is raised log it and return 1

Get all the fields annotated with the @Opt facet.

Parse the command line and set this instances fields. Return false if not all of the arguments were passed.

Run the set of services:

1. call install on each service
2. call start on each service
3. put main thread to sleep.
4. on shutodwn call stop on each service
5. then call uninstall on each service

Get an immutable representation of this instance or throw NotImmutableErr if this object cannot be represented as an immutable:

• if type is const, return this
• if already an immutable List, Map, Buf, or Func return this
• if a List, then attempt to perform a deep clone by calling toImmutable on all items
• if a Map, then attempt to perform a deep clone by calling toImmutable on all values (keys are already immutable)
• some Funcs can be made immutable - see sys::Func
• if a Buf create immutable copy, see sys::Buf
• any other object throws NotImmutableErr

Return a string representation of this object.

Trap a dynamic call for handling. Dynamic calls are invoked with the -> shortcut operator:

a->x        a.trap("x", null)
a->x()      a.trap("x", null)
a->x = b    a.trap("x", [b])
a->x(b)     a.trap("x", [b])
a->x(b, c)  a.trap("x", [b, c])
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The default implementation provided by Obj attempts to use reflection. If name maps to a method, it is invoked with the specified arguments. If name maps to a field and args.size is zero, get the field. If name maps to a field and args.size is one, set the field and return args[0]. Otherwise throw UnknownSlotErr.

Get the Type instance which represents this object's class. Also seeType.of or Pod.of.

Print usage of arguments and options. Return non-zero.

This method called whenever an it-block is applied to an object. The default implementation calls the function with this, and then returns this.

Write x.toStr to standard output followed by newline. If x is null then print "null". If no argument is provided then print an empty line.

Print a map of key/value pairs to output with values justified. Values that are lists are indented and separated by newlines. Options:

• out: OutStream to print to (default is Env.cur.out)
• indent: Str spaces (default is "")

Get map of the standard runtime props including:

• java version info if JVM
• node version if running in NodeJS
• fan version Map vals are Strs or Lists to indent. Also see printProps