Package org.apache.felix.gogo.runtime

Class CommandSessionImpl

java.lang.Object

org.apache.felix.gogo.runtime.CommandSessionImpl

All Implemented Interfaces:

AutoCloseable, CommandSession, Converter

public class CommandSessionImpl
extends Object
implements CommandSession, Converter

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.felix.service.command.CommandSession

CommandSession.Utils

Field Summary

Fields

Modifier and Type	Field	Description
protected Channel[]	channels
static String	COMMANDS
static String	CONSTANTS
protected OutputStream	err
protected InputStream	in
protected OutputStream	out
protected PrintStream	perr
protected PrintStream	pout
static String	SESSION_CLOSED
protected ConcurrentMap<String,Object>	variables
static String	VARIABLES

Fields inherited from interface org.apache.felix.service.command.CommandSession

OPTION_NO_GLOB

Fields inherited from interface org.apache.felix.service.command.Converter

CONVERTER_CLASSES, INSPECT, LINE, PART

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CommandSessionImpl(CommandProcessorImpl shell, InputStream in, OutputStream out, OutputStream err)
protected	CommandSessionImpl(CommandProcessorImpl shell, CommandSessionImpl parent)

Method Summary

Modifier and Type	Method	Description
ClassLoader	classLoader()
void	classLoader(ClassLoader classLoader)
void	close()	Close this command session.
Object	convert(Class<?> desiredType, Object in)	Convert an object to another type.
org.apache.felix.gogo.runtime.CommandSessionImpl.JobImpl	createJob(CharSequence command)
Path	currentDir()
void	currentDir(Path path)
static org.apache.felix.gogo.runtime.CommandSessionImpl.JobImpl	currentJob()
Object	doConvert(Class<?> desiredType, Object in)
Object	execute(CharSequence commandline)	Execute a program in this session.
Object	expr(CharSequence expr)
org.apache.felix.gogo.runtime.CommandSessionImpl.JobImpl	foregroundJob()	Get the current foreground job or null.
CharSequence	format(Object result, int inspect)	Convert an object to string form (CharSequence).
CharSequence	format(Object target, int level, Converter escape)	Convert an objet to a CharSequence object in the requested format.
Object	get(String name)	Get the value of a variable.
PrintStream	getConsole()	Return the PrintStream for the console.
InputStream	getKeyboard()	Return the input stream that is the first of the pipeline.
ConcurrentMap<String,Object>	getVariables()
Object	invoke(Object target, String name, List<Object> args)
List<Job>	jobs()	List jobs.
CommandProcessor	processor()
Object	put(String name, Object value)	Set the value of a variable.
Path	redirect(Path path, int mode)
void	setJobListener(JobListener listener)	Set the job listener for this session.

Methods inherited from class java.lang.Object

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

Field Detail

SESSION_CLOSED

public static final String SESSION_CLOSED

See Also:

Constant Field Values

VARIABLES

public static final String VARIABLES

See Also:

Constant Field Values

COMMANDS

public static final String COMMANDS

See Also:

Constant Field Values

CONSTANTS

public static final String CONSTANTS

See Also:

Constant Field Values

in

protected InputStream in

out

protected OutputStream out

pout

protected PrintStream pout

err

protected OutputStream err

perr

protected PrintStream perr

channels

protected Channel[] channels

variables

protected final ConcurrentMap<String,Object> variables

Constructor Detail

CommandSessionImpl

protected CommandSessionImpl(CommandProcessorImpl shell,
                             CommandSessionImpl parent)

CommandSessionImpl

protected CommandSessionImpl(CommandProcessorImpl shell,
                             InputStream in,
                             OutputStream out,
                             OutputStream err)

Method Detail

processor

public CommandProcessor processor()

getVariables

public ConcurrentMap<String,Object> getVariables()

currentDir

public Path currentDir()

Specified by:

currentDir in interface CommandSession

currentDir

public void currentDir(Path path)

Specified by:

currentDir in interface CommandSession

classLoader

public ClassLoader classLoader()

Specified by:

classLoader in interface CommandSession

classLoader

public void classLoader(ClassLoader classLoader)

Specified by:

classLoader in interface CommandSession

close

public void close()

Description copied from interface: CommandSession

Close this command session. After the session is closed, it will throw IllegalStateException when it is used.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface CommandSession

execute

public Object execute(CharSequence commandline)
               throws Exception

Description copied from interface: CommandSession

Execute a program in this session.

Specified by:

execute in interface CommandSession

Returns:

the result of the execution

Throws:

Exception

getKeyboard

public InputStream getKeyboard()

Description copied from interface: CommandSession

Return the input stream that is the first of the pipeline. This stream is sometimes necessary to communicate directly to the end user. For example, a "less" or "more" command needs direct input from the keyboard to control the paging.

Specified by:

getKeyboard in interface CommandSession

Returns:

InpuStream used closest to the user or null if input is from a file.

get

public Object get(String name)

Description copied from interface: CommandSession

Get the value of a variable.

Specified by:

get in interface CommandSession

Returns:

put

public Object put(String name,
                  Object value)

Description copied from interface: CommandSession

Set the value of a variable.

Specified by:

put in interface CommandSession

Parameters:

name - Name of the variable.

value - Value of the variable

getConsole

public PrintStream getConsole()

Description copied from interface: CommandSession

Return the PrintStream for the console. This must always be the stream "closest" to the user. This stream can be used to post messages that bypass the piping. If the output is piped to a file, then the object returned must be null.

Specified by:

getConsole in interface CommandSession

Returns:

format

public CharSequence format(Object target,
                           int level,
                           Converter escape)
                    throws Exception

Description copied from interface: Converter

Convert an objet to a CharSequence object in the requested format. The format can be INSPECT, LINE, or PART. Other values must throw IllegalArgumentException.

Specified by:

format in interface Converter

Parameters:

target - The object to be converted to a String

level - One of INSPECT, LINE, or PART.

escape - Use this object to format sub ordinate objects.

Returns:

A printed object of potentially multiple lines

Throws:

Exception

convert

public Object convert(Class<?> desiredType,
                      Object in)

Description copied from interface: CommandSession

Convert an object to another type.

Specified by:

convert in interface CommandSession

Specified by:

convert in interface Converter

Parameters:

desiredType - The type that the returned object can be assigned to

in - The object that must be converted

Returns:

An object that can be assigned to the desired type or null.

doConvert

public Object doConvert(Class<?> desiredType,
                        Object in)

format

public CharSequence format(Object result,
                           int inspect)

Description copied from interface: CommandSession

Convert an object to string form (CharSequence). The level is defined in the Converter interface, it can be one of INSPECT, LINE, PART. This function always returns a non null value. As a last resort, toString is called on the Object.

Specified by:

format in interface CommandSession

Returns:

expr

public Object expr(CharSequence expr)

invoke

public Object invoke(Object target,
                     String name,
                     List<Object> args)
              throws Exception

Throws:

Exception

redirect

public Path redirect(Path path,
                     int mode)

jobs

public List<Job> jobs()

Description copied from interface: CommandSession

List jobs. Always return a non-null list.

Specified by:

jobs in interface CommandSession

currentJob

public static org.apache.felix.gogo.runtime.CommandSessionImpl.JobImpl currentJob()

foregroundJob

public org.apache.felix.gogo.runtime.CommandSessionImpl.JobImpl foregroundJob()

Description copied from interface: CommandSession

Get the current foreground job or null.

Specified by:

foregroundJob in interface CommandSession

setJobListener

public void setJobListener(JobListener listener)

Description copied from interface: CommandSession

Set the job listener for this session.

Specified by:

setJobListener in interface CommandSession

createJob

public org.apache.felix.gogo.runtime.CommandSessionImpl.JobImpl createJob(CharSequence command)