org.overlord.sramp.shell
Class AbstractShellCommandReader

java.lang.Object
  org.overlord.sramp.shell.AbstractShellCommandReader

All Implemented Interfaces:

ShellCommandReader

Direct Known Subclasses:

ConsoleShellCommandReader, FileShellCommandReader, InteractiveShellCommandReader, StdInShellCommandReader

public abstract class AbstractShellCommandReader
extends Object
implements ShellCommandReader

A base class for all shell command readers.

Author:

eric.wittmann@redhat.com

Constructor Summary

AbstractShellCommandReader(ShellCommandFactory factory, ShellContext context)
Constructor.

Method Summary

void	close() Called by the shell when exiting.
protected Writer	getCommandOutput() Gets the output stream that should be used by commands when they need to print a message to the console.
ShellContext	getContext()
ShellCommandFactory	getFactory()
abstract void	open() Called to open the shell command reader.
ShellCommand	read() Reads the next command from the input source.
protected abstract String	readLine() Reads a single line from the input source (e.g.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractShellCommandReader

public AbstractShellCommandReader(ShellCommandFactory factory,
                                  ShellContext context)

Constructor.

Parameters:

factory -

context -

Method Detail

open

public abstract void open()
                   throws IOException

Description copied from interface: ShellCommandReader

Called to open the shell command reader.

Specified by:

open in interface ShellCommandReader

Throws:

IOException

See Also:

org.overlord.sramp.common.shell.ShellCommandReader#open()

read

public final ShellCommand read()
                        throws Exception

Description copied from interface: ShellCommandReader

Reads the next command from the input source.

Specified by:

read in interface ShellCommandReader

Throws:

Exception

See Also:

org.overlord.sramp.common.shell.ShellCommandReader#read()

getCommandOutput

protected Writer getCommandOutput()

Gets the output stream that should be used by commands when they need to print a message to the console.

readLine

protected abstract String readLine()
                            throws IOException

Reads a single line from the input source (e.g. user input) and returns it.

Throws:

IOException

close

public void close()
           throws IOException

Description copied from interface: ShellCommandReader

Called by the shell when exiting.

Specified by:

close in interface ShellCommandReader

Throws:

IOException

See Also:

org.overlord.sramp.common.shell.ShellCommandReader#close()

getFactory

public ShellCommandFactory getFactory()

Returns:

the factory

getContext

public ShellContext getContext()

Returns:

the context