uk.ac.ed.epcc.webapp.config

Class DefaultConfigService

java.lang.Object

uk.ac.ed.epcc.webapp.AbstractContexed

uk.ac.ed.epcc.webapp.config.AbstractConfigService

uk.ac.ed.epcc.webapp.config.DefaultConfigService

All Implemented Interfaces:

AppContextCleanup, AppContextService<ConfigService>, ConfigService, Contexed

public class DefaultConfigService
extends AbstractConfigService
implements ConfigService, Contexed

The default ConfigService This starts

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	BUILD_PATH_PROP_NAME
static java.lang.String	CONFIG_PATH_PROP_NAME
static java.lang.String	DEFAULT_PATH_PROP_NAME
static java.lang.String	DEPLOY_PATH_PROP_NAME
protected java.util.Set<ConfigServiceListener>	listeners

Fields inherited from class uk.ac.ed.epcc.webapp.AbstractContexed

conn

Constructor Summary

Constructors

Constructor and Description
DefaultConfigService(AppContext conn)
DefaultConfigService(AppContext conn, java.util.Properties p) Initialise with a specific set of default props rather than the system properties.

Method Summary

Modifier and Type	Method and Description
void	addListener(ConfigServiceListener listener) register a ConfigServiceListener
void	cleanup() AppContext is being closed.
void	clearServiceProperties() clear any cached properties.
java.util.Properties	getServiceProperties() Service Context Attributes - loadAttributes if the config.path property is defined then load from that file.
void	setProperty(java.lang.String name, java.lang.String value) Set a property This method is for making persistent changes to the configuration.

Methods inherited from class uk.ac.ed.epcc.webapp.config.AbstractConfigService

getType, loadFile, processAdditions

Methods inherited from class uk.ac.ed.epcc.webapp.AbstractContexed

getContext, getLogger, resetLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.ed.epcc.webapp.Contexed

getContext

Methods inherited from interface uk.ac.ed.epcc.webapp.AppContextService

getType

Field Detail

BUILD_PATH_PROP_NAME

public static final java.lang.String BUILD_PATH_PROP_NAME

See Also:

Constant Field Values

DEPLOY_PATH_PROP_NAME

public static final java.lang.String DEPLOY_PATH_PROP_NAME

See Also:

Constant Field Values

CONFIG_PATH_PROP_NAME

public static final java.lang.String CONFIG_PATH_PROP_NAME

See Also:

Constant Field Values

DEFAULT_PATH_PROP_NAME

public static final java.lang.String DEFAULT_PATH_PROP_NAME

See Also:

Constant Field Values

listeners

protected java.util.Set<ConfigServiceListener> listeners

Constructor Detail

DefaultConfigService

public DefaultConfigService(AppContext conn)

DefaultConfigService

public DefaultConfigService(AppContext conn,
                            java.util.Properties p)

Initialise with a specific set of default props rather than the system properties. A null value means lazy evaluation using System.getProperties().

Parameters:

conn -

p -

Method Detail

getServiceProperties

public java.util.Properties getServiceProperties()

Service Context Attributes - loadAttributes if the config.path property is defined then load from that file. otherwise use the ClassLoader to load a files from the System classpath called service-config.properties and deploy-config.properties In this second case values in deploy-properties take precedence. Look for a build-config.properies file containing info from the build system

Specified by:

getServiceProperties in interface ConfigService

Returns:

Properties

addListener

public void addListener(ConfigServiceListener listener)

Description copied from interface: ConfigService

register a ConfigServiceListener

Specified by:

addListener in interface ConfigService

clearServiceProperties

public void clearServiceProperties()

Description copied from interface: ConfigService

clear any cached properties. This will cause the properties to be re-read the next time getServiceProperties is called. Implementations are permitted not to cache data in which case this is a No-op.

Specified by:

clearServiceProperties in interface ConfigService

setProperty

public void setProperty(java.lang.String name,
                        java.lang.String value)
                 throws java.lang.UnsupportedOperationException

Description copied from interface: ConfigService

Set a property This method is for making persistent changes to the configuration. if the service is not capable of making persistent changes it should forward the request to a nested service or throw an UnsupportedOperationException

Specified by:

setProperty in interface ConfigService

Throws:

java.lang.UnsupportedOperationException

cleanup

public void cleanup()

Description copied from interface: AppContextCleanup

AppContext is being closed. Only use this for cleanup that can't be handled by normal garbage collection or for state which is never returned by reference.

Specified by:

cleanup in interface AppContextCleanup