Script.java
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Script.java
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	/*
	* Copyright (C) 2013-2015 Lannocc Technologies
	* @%@~LICENSE~@%@
	*/
	package com.iovar.web.bin.shell.task;

	// local imports:
	import com.iovar.web.dev.*;
	import com.iovar.web.proc.*;

	// java imports:
	import java.io.*;
	import javax.servlet.*;

	// 3rd-party imports:

	/**
	* An optional named interpreter followed by group of operations.
	* Empty input will not assemble.
	*
	* @author shawn@lannocc.com
	*/
	public class Script implements Graph, Task
	{
	HashBang interpreter;
	Group ops;

	public boolean assemble (final GraphReader in) throws IOException, GraphException
	{
	interpreter = new HashBang ();
	if (! interpreter.assemble (in))
	{
	interpreter = null;
	}
	Log.debug ("hashbang: "+interpreter);
	if (interpreter != null) Log.info ("interpreter: "+interpreter.getVal());

	ops = new Group ();
	if (! ops.assemble (in))
	{
	Log.debug ("no group assembly");
	return false;
	}

	return true;
	}

	/*
	public HashBang getInterpreter ()
	{
	return interpreter;
	}
	*/

	/*
	* this is shell exec only: the calling party is responsible for invoking any other interpreter
	*/
	public Return exec (final TaskData task) throws IOException, ServletException
	{
	return ops.exec (task);
	}

	public String toString ()
	{
	return super.toString ()+": interpreter="+interpreter+", { "+ops+" }";
	}
	}