org.apache.guacamole.environment

Class LocalEnvironment

java.lang.Object

org.apache.guacamole.environment.LocalEnvironment

All Implemented Interfaces:

Environment

public class LocalEnvironment
extends Object
implements Environment

The environment of the locally-running Guacamole instance, describing available protocols, configuration parameters, and the GUACAMOLE_HOME directory.

Author:

Michael Jumper

Field Summary

Fields inherited from interface org.apache.guacamole.environment.Environment

GUACD_HOSTNAME, GUACD_PORT, GUACD_SSL

Constructor Summary

Constructors

Constructor and Description
LocalEnvironment() Creates a new Environment, initializing that environment based on the location of GUACAMOLE_HOME and the contents of guacamole.properties.

Method Summary

Modifier and Type	Method and Description
File	getGuacamoleHome() Returns the Guacamole home directory as determined when this Environment object was created.
<Type> Type	getProperty(GuacamoleProperty<Type> property) Given a GuacamoleProperty, parses and returns the value set for that property in guacamole.properties, if any.
<Type> Type	getProperty(GuacamoleProperty<Type> property, Type defaultValue) Given a GuacamoleProperty, parses and returns the value set for that property in guacamole.properties, if any.
ProtocolInfo	getProtocol(String name) Returns the protocol having the given name.
Map<String,ProtocolInfo>	getProtocols() Returns a map of all available protocols, where each key is the name of that protocol as would be passed to guacd during connection.
<Type> Type	getRequiredProperty(GuacamoleProperty<Type> property) Given a GuacamoleProperty, parses and returns the value set for that property in guacamole.properties.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalEnvironment

public LocalEnvironment()
                 throws org.apache.guacamole.GuacamoleException

Creates a new Environment, initializing that environment based on the location of GUACAMOLE_HOME and the contents of guacamole.properties.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while determining the environment of this Guacamole instance.

Method Detail

getGuacamoleHome

public File getGuacamoleHome()

Description copied from interface: Environment

Returns the Guacamole home directory as determined when this Environment object was created. The Guacamole home directory is found by checking, in order: the guacamole.home system property, the GUACAMOLE_HOME environment variable, and finally the .guacamole directory in the home directory of the user running the servlet container.

Specified by:

getGuacamoleHome in interface Environment

Returns:

The File representing the Guacamole home directory, which may or may not exist, and may turn out to not be a directory.

getProperty

public <Type> Type getProperty(GuacamoleProperty<Type> property)
                        throws org.apache.guacamole.GuacamoleException

Description copied from interface: Environment

Given a GuacamoleProperty, parses and returns the value set for that property in guacamole.properties, if any.

Specified by:

getProperty in interface Environment

Type Parameters:

Type - The type that the given property is parsed into.

Parameters:

property - The property to read from guacamole.properties.

Returns:

The parsed value of the property as read from guacamole.properties.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while parsing the value for the given property in guacamole.properties.

getProperty

public <Type> Type getProperty(GuacamoleProperty<Type> property,
                               Type defaultValue)
                        throws org.apache.guacamole.GuacamoleException

Description copied from interface: Environment

Given a GuacamoleProperty, parses and returns the value set for that property in guacamole.properties, if any. If no value is found, the provided default value is returned.

Specified by:

getProperty in interface Environment

Type Parameters:

Type - The type that the given property is parsed into.

Parameters:

property - The property to read from guacamole.properties.

defaultValue - The value to return if no value was given in guacamole.properties.

Returns:

The parsed value of the property as read from guacamole.properties, or the provided default value if no value was found.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while parsing the value for the given property in guacamole.properties.

getRequiredProperty

public <Type> Type getRequiredProperty(GuacamoleProperty<Type> property)
                                throws org.apache.guacamole.GuacamoleException

Description copied from interface: Environment

Given a GuacamoleProperty, parses and returns the value set for that property in guacamole.properties. An exception is thrown if the value is not provided.

Specified by:

getRequiredProperty in interface Environment

Type Parameters:

Type - The type that the given property is parsed into.

Parameters:

property - The property to read from guacamole.properties.

Returns:

The parsed value of the property as read from guacamole.properties.

Throws:

org.apache.guacamole.GuacamoleException - If an error occurs while parsing the value for the given property in guacamole.properties, or if the property is not specified.

getProtocols

public Map<String,ProtocolInfo> getProtocols()

Description copied from interface: Environment

Returns a map of all available protocols, where each key is the name of that protocol as would be passed to guacd during connection.

Specified by:

getProtocols in interface Environment

Returns:

A map of all available protocols.

getProtocol

public ProtocolInfo getProtocol(String name)

Description copied from interface: Environment

Returns the protocol having the given name. The name must be the protocol name as would be passed to guacd during connection.

Specified by:

getProtocol in interface Environment

Parameters:

name - The name of the protocol.

Returns:

The protocol having the given name, or null if no such protocol is registered.