stella.net

Class TestReceiver

java.lang.Object

util.PropertyContainer

util.PropertyResources

util.rmi.RmiPropertyContainer

util.rmi.AbstractRmiCaster

stella.CastingContainer

stella.net.ReceiverServer

stella.net.ErrorServer

stella.net.CommandReceiver

stella.net.TestReceiver

All Implemented Interfaces:

Cloneable, Runnable, Remote, ErrorProcessing, RmiErrorCaster, CancelRunnable, ExitCleaning, Initializable, PropertySupplying, ResourceSupplying, RmiCaster, RmiPropertyBearing

public final class TestReceiver
extends CommandReceiver

The receiver end to the test caster method. This class waits for command from the test caster and generates (sometimes multiple) acknowledge events and a done event as a return. To test the time-out capabilities of the caster, the processCommand(stella.CommandEvent, int) method has a probablility to generate a time-out on the caster end.
Additionally, this class also transfers errors as an ascii-string to a port specified by KEY_ERRORPORT on KEY_ERRORHOST. The processError(stella.ErrorEvent) method is distorted to (additionally) open a socket connetion, writes into the ascii-error and closes the socket again.

Nested Class Summary

Nested classes/interfaces inherited from class stella.net.CommandReceiver

CommandReceiver.CommandHandler

Nested classes/interfaces inherited from class util.PropertyResources

PropertyResources.Load, PropertyResources.URLResource

Field Summary

Fields

Modifier and Type	Field and Description
private static long	DEFACKMAX The default maximum acknowledge time.
private static long	DEFACKMIN The default minimum acknowledge time.
private static double	DEFCOMMANDFAIL The default probability of command execution failure.
private static double	DEFCOMMANDLONG The default probability of command execution time-out.
private static int	DEFERRORPORT The default port to connect to the host of the ascii-error server.
private static double	DEFINFOPROB The default probability of generating an info.
private static double	DEFSTATUSPROB The default probability of generating a status.
private List	errors The error classes available for this test receiver.
static String	KEY_ACKMAX The maximum acknowledge time sent back.
static String	KEY_ACKMIN The minimum acknowledge time sent back.
static String	KEY_COMMANDFAIL The probability of command execution failure.
static String	KEY_COMMANDLONG The probability of command execution time-out.
static String	KEY_ERRORHOST The host of the ascii-error server.
static String	KEY_ERRORPORT The port to connect to the host of the ascii-error server.
static String	KEY_ERRORS A list of error classes that might be generated.
static String	KEY_INFOPROB The probability of generating an info.
static String	KEY_STATUS A list of status messages to generate.
static String	KEY_STATUSPROB The probability of generating a status.
private List	stati The status classes available for this test receiver.

Fields inherited from class stella.net.CommandReceiver

KEY_AVAILABLE, KEY_COMMANDGROUP, KEY_TIMEOUT

Fields inherited from class stella.net.ErrorServer

KEY_BIND, KEY_BINDNAME

Fields inherited from class stella.net.ReceiverServer

DEFSERVERPORT, handlerGroup, KEY_BUFFERSIZE, KEY_HANDLERPRIORITY, KEY_HOSTADDRESS, KEY_LOGOUT, KEY_RECEIVERNAME, KEY_SERVERPORT, KEY_SERVERPRIORITY

Fields inherited from class util.rmi.AbstractRmiCaster

ALTERNATEHOST, ALTERNATEPORT, KEY_EXPORTPORT, KEY_REGISTRYHOST, KEY_REGISTRYPORT

Fields inherited from class util.PropertyResources

KEY_NOINITONCREATE, POSTFIX_ALPHABET, POSTFIX_BYTES, POSTFIX_DIR, POSTFIX_EXT, POSTFIX_FILE, POSTFIX_LIST, POSTFIX_MODTIME, POSTFIX_URL

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR

Fields inherited from interface util.ResourceSupplying

KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Constructor Summary

Constructors

Constructor and Description
TestReceiver(Map ensure) Constructs a new test receiver.

Method Summary

Modifier and Type	Method and Description
private ErrorEvent	createErrorEventFromList(List classes) Takes a list of error event classes and creates a living object out of it.
protected int	getAcknowledgeNumber(CommandEvent cmd) Returns the type of the first acknowledge event.
protected long	getCompletionTime(CommandEvent ignore, int dummytype) Returns a time between KEY_ACKMIN and KEY_ACKMAX.
protected ErrorEvent	getLastError() Returns a randomly selected error out of the errorlist.
static void	main(String[] arg) For testing.
protected boolean	processCommand(CommandEvent ignore, int dummytype) Processes the given command.
void	processError(ErrorEvent ee) Processes the error in a way that it send it as an ascii string to the specified post, KEY_ERRORPORT, on the specified host, KEY_ERRORHOST.

Methods inherited from class stella.net.CommandReceiver

cancel, protocol, sendInfo, sendStatus

Methods inherited from class stella.net.ErrorServer

exit, init

Methods inherited from class stella.net.ReceiverServer

getAsociatedThread, getBufferSize, getHandlerPriority, getReceiverName, getServerPort, getServerPriority, initReceiverServer, maxTimeToCancel, run

Methods inherited from class stella.CastingContainer

addErrorListener, addRmiErrorListener, isValid, notifyErrorListener, removeErrorListener, removeRmiErrorListener, sendError, sendError, sendError, sendStatus, sendStatus

Methods inherited from class util.rmi.AbstractRmiCaster

bindToRegistry, bindToRegistry, bindToRegistry, bindToRegistry, bindToRegistry, bindToRegistry, casterExit, casterExit, getBindName, getBindName, unbindFromRegistry, unbindFromRegistry

Methods inherited from class util.rmi.RmiPropertyContainer

containsRemoteProperty, getRemoteProperties, getRemoteProperty, setRemoteProperty

Methods inherited from class util.PropertyResources

clone, createFrom, createFrom, createFrom, createInstance, getApplet, getAsResources, getLocate, getPropertiesToKey, getPropertiesToKey, getResource, getResourceAsStream, getResourceFromKey, getResources, hasLocalURLs, initProperties, keyCreate, keyCreate, reload, setApplet

Methods inherited from class util.PropertyContainer

augment, augment, augment, augment, augment, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, isNew, parseObject, parseObject, reload, removeProperty, requires, rescanned, setObject, setProperties, setProperty, stringProperties, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface stella.rmi.RmiErrorCaster

addRmiErrorListener, removeRmiErrorListener

Methods inherited from interface util.rmi.RmiCaster

bindToRegistry, isValid, unbindFromRegistry

Methods inherited from interface util.PropertySupplying

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Field Detail

KEY_ERRORHOST

public static final String KEY_ERRORHOST

The host of the ascii-error server.

See Also:

Constant Field Values

KEY_ERRORPORT

public static final String KEY_ERRORPORT

The port to connect to the host of the ascii-error server.

See Also:

Constant Field Values

KEY_ERRORS

public static final String KEY_ERRORS

A list of error classes that might be generated.

See Also:

Constant Field Values

KEY_ACKMIN

public static final String KEY_ACKMIN

The minimum acknowledge time sent back.

See Also:

Constant Field Values

KEY_ACKMAX

public static final String KEY_ACKMAX

The maximum acknowledge time sent back.

See Also:

Constant Field Values

KEY_COMMANDFAIL

public static final String KEY_COMMANDFAIL

The probability of command execution failure.

See Also:

Constant Field Values

KEY_COMMANDLONG

public static final String KEY_COMMANDLONG

The probability of command execution time-out.

See Also:

Constant Field Values

KEY_STATUSPROB

public static final String KEY_STATUSPROB

The probability of generating a status.

See Also:

Constant Field Values

KEY_STATUS

public static final String KEY_STATUS

A list of status messages to generate. If null, only test stati.

See Also:

Constant Field Values

KEY_INFOPROB

public static final String KEY_INFOPROB

The probability of generating an info.

See Also:

Constant Field Values

DEFERRORPORT

private static final int DEFERRORPORT

The default port to connect to the host of the ascii-error server.

See Also:

Constant Field Values

DEFACKMIN

private static final long DEFACKMIN

The default minimum acknowledge time.

See Also:

Constant Field Values

DEFACKMAX

private static final long DEFACKMAX

The default maximum acknowledge time.

See Also:

Constant Field Values

DEFCOMMANDFAIL

private static final double DEFCOMMANDFAIL

The default probability of command execution failure.

See Also:

Constant Field Values

DEFCOMMANDLONG

private static final double DEFCOMMANDLONG

The default probability of command execution time-out.

See Also:

Constant Field Values

DEFSTATUSPROB

private static final double DEFSTATUSPROB

The default probability of generating a status.

See Also:

Constant Field Values

DEFINFOPROB

private static final double DEFINFOPROB

The default probability of generating an info.

See Also:

Constant Field Values

errors

private List errors

The error classes available for this test receiver.

stati

private List stati

The status classes available for this test receiver.

Constructor Detail

TestReceiver

public TestReceiver(Map ensure)
             throws RemoteException

Constructs a new test receiver. Registers System.err as an error listener.

Throws:

RemoteException

Method Detail

processError

public void processError(ErrorEvent ee)

Processes the error in a way that it send it as an ascii string to the specified post, KEY_ERRORPORT, on the specified host, KEY_ERRORHOST. The socket connection is terminated after the error has been sent. Additionally, the super class's method is called for additional notification of RMI error listeners.

Specified by:

processError in interface ErrorProcessing

Overrides:

processError in class ErrorServer

Parameters:

ee - The ErrorEvent to pass to the Listeners.

getAcknowledgeNumber

protected int getAcknowledgeNumber(CommandEvent cmd)

Returns the type of the first acknowledge event. A probability of 0.3 to return a multi-acknowledge type.

Overrides:

getAcknowledgeNumber in class CommandReceiver

getCompletionTime

protected long getCompletionTime(CommandEvent ignore,
                                 int dummytype)

Returns a time between KEY_ACKMIN and KEY_ACKMAX.

Specified by:

getCompletionTime in class CommandReceiver

Parameters:

ignore - The command to process.

dummytype - The type of the acknowledge that will be sent back.

processCommand

protected boolean processCommand(CommandEvent ignore,
                                 int dummytype)

Processes the given command. Depending on the KEY_COMMANDLONG probability, the execution of this command may take longer than the acknowledge time sent back. Note that KEY_COMMANDLONG probability is a maximum failure probability because the acknowledge time sent back may vary between KEY_ACKMIN and KEY_ACKMAX, while the KEY_COMMANDLONG probability is the probability that the execution of the command will take longert than KEY_ACKMIN. With a probability of KEY_COMMANDFAIL the command execution will fail, resulting in an error to be generated and sent back, see KEY_ERRORS. A simple status message is sent with a probability of KEY_STATUSPROB.

Specified by:

processCommand in class CommandReceiver

getLastError

protected ErrorEvent getLastError()

Returns a randomly selected error out of the errorlist. If the errorlist is not present or the error cannot be instantiated, null is returned.

Overrides:

getLastError in class CommandReceiver

createErrorEventFromList

private ErrorEvent createErrorEventFromList(List classes)

Takes a list of error event classes and creates a living object out of it. The constructor of the class must support a single-Object argument. In case of failure, null is returned.

main

public static void main(String[] arg)
                 throws RemoteException

For testing. Registers to the command caster given in the first command line argument.

Throws:

RemoteException