org.w3c.jigsaw.daemon
Class DaemonProperties

java.lang.Object
  org.w3c.jigsaw.daemon.DaemonProperties

public class DaemonProperties
extends java.lang.Object

Subclass of Properties, to deal with daemon specific usage of them. This class refines the basic Properties class, in order to tune them for ServerHandler specific needs:

• Properties can be observed through the PropertyMonitoring interface,
• Properties are multiplexed according to the server identifier. Two servers can rely on the same set of properties, but each of them can have its own property value. Eg the org.w3c.jigsaw.http package host property can be set fro server1 to host1 and for server2 to host2. This is done by defining server1.org.w3c.jigsaw.http.host and server2.org.w3c.jigsaw.http.host

Each property can be monitored, to allow for dynamic reconfiguration of the server.

See Also:

PropertyMonitoring

Field Summary

protected java.io.File	configdir Our base config directory.
protected java.util.Properties	globprops The global set of properties (inherited by all spaces).
protected java.util.Hashtable	propspace The set of loaded properties set.

Constructor Summary

DaemonProperties(java.io.File configdir, java.util.Properties props)

Method Summary

java.lang.String	getProperty(java.lang.String name)
ObservableProperties	getPropertySpace(java.lang.String id) Get the properties for the given space.
java.lang.String	getString(java.lang.String name, java.lang.String def)
void	load(java.io.InputStream in)
ObservableProperties	loadPropertySpace(java.lang.String id) Load in the default properties for the given space.
ObservableProperties	loadPropertySpace(java.lang.String id, java.io.InputStream in) Extend a property space.
void	save()
void	savePropertySpace(java.lang.String id)

Methods inherited from class java.lang.Object

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

Field Detail

propspace

protected java.util.Hashtable propspace

The set of loaded properties set.

globprops

protected java.util.Properties globprops

The global set of properties (inherited by all spaces).

configdir

protected java.io.File configdir

Our base config directory.

Constructor Detail

DaemonProperties

public DaemonProperties(java.io.File configdir,
                        java.util.Properties props)

Parameters:

props - The global properties to use in all spaces.

Method Detail

loadPropertySpace

public ObservableProperties loadPropertySpace(java.lang.String id,
                                              java.io.InputStream in)
                                       throws java.io.IOException

Extend a property space.

Parameters:

id - The identifier of the property set to extend.

in - The input stream containing Java properties to add.

Throws:

java.io.IOException - If the input stream couldn't be read.

loadPropertySpace

public ObservableProperties loadPropertySpace(java.lang.String id)
                                       throws java.io.IOException,
                                              java.io.FileNotFoundException

Load in the default properties for the given space. The file from which properties are loaded is kept itself as the org.w3c.jigsaw.propfile property.

Parameters:

id - The identifier of the property set to load.

Throws:

java.io.FileNotFoundException - If the default property file wasn't found.

java.io.IOException - If default property file couldn't be read.

getPropertySpace

public ObservableProperties getPropertySpace(java.lang.String id)

Get the properties for the given space.

Parameters:

id - The identifier for a property set space.

Returns:

An ObservableProperties instance, or null.

save

public void save()

savePropertySpace

public void savePropertySpace(java.lang.String id)

load

public void load(java.io.InputStream in)
          throws java.io.IOException

Throws:

java.io.IOException

getProperty

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

getString

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