rice.environment.params.simple
Class SimpleParameters

java.lang.Object
  rice.environment.params.simple.SimpleParameters

All Implemented Interfaces:

Parameters

public class SimpleParameters
extends java.lang.Object
implements Parameters

This class represents a generic Java process launching program which reads in preferences from a preferences file and then invokes another JVM using those prefs. If the launched JVM dies, this process can be configured to restart the JVM any number of times before giving up. This process can also be configured to launch the second JVM with a specified memory allocation, etc...

Author:

Alan Mislove

Nested Class Summary

protected class

SimpleParameters.MyProperties

Field Summary

static java.lang.String	ARRAY_SPACER
static java.lang.String	defaultParamsFile
static java.lang.String	FILENAME_EXTENSION

Constructor Summary

SimpleParameters(java.lang.String[] orderedDefaults, java.lang.String mutableConfigFileName)

Method Summary

void	addChangeListener(ParameterChangeListener p)
boolean	contains(java.lang.String name) See if the parameters contains the key
java.util.Enumeration	enumerateDefaults()
java.util.Enumeration	enumerateNonDefaults()
boolean	getBoolean(java.lang.String name)
double	getDouble(java.lang.String name)
float	getFloat(java.lang.String name)
java.net.InetAddress	getInetAddress(java.lang.String name) String format is dnsname ex: "computer.school.edu"
java.net.InetSocketAddress	getInetSocketAddress(java.lang.String name) String format is name:port ex: "computer.school.edu:1984"
java.net.InetSocketAddress[]	getInetSocketAddressArray(java.lang.String name) String format is comma seperated.
int	getInt(java.lang.String name)
long	getLong(java.lang.String name)
protected java.lang.String	getProperty(java.lang.String name)
java.lang.String	getString(java.lang.String name)
java.lang.String[]	getStringArray(java.lang.String name)
protected java.net.InetSocketAddress	parseInetSocketAddress(java.lang.String name)
void	remove(java.lang.String name) Remove the key
void	removeChangeListener(ParameterChangeListener p)
void	setBoolean(java.lang.String name, boolean value)
void	setDouble(java.lang.String name, double value)
void	setFloat(java.lang.String name, float value)
void	setInetAddress(java.lang.String name, java.net.InetAddress value)
void	setInetSocketAddress(java.lang.String name, java.net.InetSocketAddress value)
void	setInetSocketAddressArray(java.lang.String name, java.net.InetSocketAddress[] value)
void	setInt(java.lang.String name, int value)
void	setLong(java.lang.String name, long value)
protected void	setProperty(java.lang.String name, java.lang.String value) Note, this method does not implicitly call store()
void	setString(java.lang.String name, java.lang.String value)
void	setStringArray(java.lang.String name, java.lang.String[] value)
void	store() Persistently stores the parameters.

Methods inherited from class java.lang.Object

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

Field Detail

FILENAME_EXTENSION

public static final java.lang.String FILENAME_EXTENSION

See Also:

Constant Field Values

ARRAY_SPACER

public static final java.lang.String ARRAY_SPACER

See Also:

Constant Field Values

defaultParamsFile

public static final java.lang.String defaultParamsFile

See Also:

Constant Field Values

Constructor Detail

SimpleParameters

public SimpleParameters(java.lang.String[] orderedDefaults,
                        java.lang.String mutableConfigFileName)

Parameters:

orderedDefaults -

mutableConfigFileName - if this is null, no params are saved, if this file doesn't exist, you will get a warning printed to stdErr, then the file will be created if you ever store

Throws:

java.io.IOException

Method Detail

enumerateDefaults

public java.util.Enumeration enumerateDefaults()

enumerateNonDefaults

public java.util.Enumeration enumerateNonDefaults()

parseInetSocketAddress

protected java.net.InetSocketAddress parseInetSocketAddress(java.lang.String name)
                                                     throws java.net.UnknownHostException

Throws:

java.net.UnknownHostException

getProperty

protected java.lang.String getProperty(java.lang.String name)

setProperty

protected void setProperty(java.lang.String name,
                           java.lang.String value)

Note, this method does not implicitly call store()

Parameters:

name -

value -

See Also:

store()

remove

public void remove(java.lang.String name)

Description copied from interface: Parameters

Remove the key

Specified by:

remove in interface Parameters

contains

public boolean contains(java.lang.String name)

Description copied from interface: Parameters

See if the parameters contains the key

Specified by:

contains in interface Parameters

Returns:

getInt

public int getInt(java.lang.String name)

Specified by:

getInt in interface Parameters

getDouble

public double getDouble(java.lang.String name)

Specified by:

getDouble in interface Parameters

getFloat

public float getFloat(java.lang.String name)

Specified by:

getFloat in interface Parameters

getLong

public long getLong(java.lang.String name)

Specified by:

getLong in interface Parameters

getBoolean

public boolean getBoolean(java.lang.String name)

Specified by:

getBoolean in interface Parameters

getInetAddress

public java.net.InetAddress getInetAddress(java.lang.String name)
                                    throws java.net.UnknownHostException

Description copied from interface: Parameters

String format is dnsname ex: "computer.school.edu"

Specified by:

getInetAddress in interface Parameters

Returns:

Throws:

java.net.UnknownHostException

getInetSocketAddress

public java.net.InetSocketAddress getInetSocketAddress(java.lang.String name)
                                                throws java.net.UnknownHostException

Description copied from interface: Parameters

String format is name:port ex: "computer.school.edu:1984"

Specified by:

getInetSocketAddress in interface Parameters

Returns:

Throws:

java.net.UnknownHostException

getInetSocketAddressArray

public java.net.InetSocketAddress[] getInetSocketAddressArray(java.lang.String name)
                                                       throws java.net.UnknownHostException

Description copied from interface: Parameters

String format is comma seperated. ex: "computer.school.edu:1984,computer2.school.edu:1984,computer.school.edu:1985"

Specified by:

getInetSocketAddressArray in interface Parameters

Returns:

Throws:

java.net.UnknownHostException

getString

public java.lang.String getString(java.lang.String name)

Specified by:

getString in interface Parameters

getStringArray

public java.lang.String[] getStringArray(java.lang.String name)

Specified by:

getStringArray in interface Parameters

setInt

public void setInt(java.lang.String name,
                   int value)

Specified by:

setInt in interface Parameters

setDouble

public void setDouble(java.lang.String name,
                      double value)

Specified by:

setDouble in interface Parameters

setFloat

public void setFloat(java.lang.String name,
                     float value)

Specified by:

setFloat in interface Parameters

setLong

public void setLong(java.lang.String name,
                    long value)

Specified by:

setLong in interface Parameters

setBoolean

public void setBoolean(java.lang.String name,
                       boolean value)

Specified by:

setBoolean in interface Parameters

setInetAddress

public void setInetAddress(java.lang.String name,
                           java.net.InetAddress value)

Specified by:

setInetAddress in interface Parameters

setInetSocketAddress

public void setInetSocketAddress(java.lang.String name,
                                 java.net.InetSocketAddress value)

Specified by:

setInetSocketAddress in interface Parameters

setInetSocketAddressArray

public void setInetSocketAddressArray(java.lang.String name,
                                      java.net.InetSocketAddress[] value)

Specified by:

setInetSocketAddressArray in interface Parameters

setString

public void setString(java.lang.String name,
                      java.lang.String value)

Specified by:

setString in interface Parameters

setStringArray

public void setStringArray(java.lang.String name,
                           java.lang.String[] value)

Specified by:

setStringArray in interface Parameters

store

public void store()
           throws java.io.IOException

Description copied from interface: Parameters

Persistently stores the parameters.

Specified by:

store in interface Parameters

Throws:

java.io.IOException

addChangeListener

public void addChangeListener(ParameterChangeListener p)

Specified by:

addChangeListener in interface Parameters

removeChangeListener

public void removeChangeListener(ParameterChangeListener p)

Specified by:

removeChangeListener in interface Parameters