org.sapia.soto
Class SotoContainer

java.lang.Object
  org.sapia.soto.SotoContainer

All Implemented Interfaces:

SotoConsts

public class SotoContainer
extends Object
implements SotoConsts

An intance of this class contains service instances and manages their life-cycle.

Author:

Yanick Duchesne

Copyright:

Copyright © 2002-2003 Sapia Open Source Software . All Rights Reserved.

License:

Read the license.txt file of the jar or visit the license page at the Sapia OSS web site

Nested Class Summary

static class

SotoContainer.EnvImpl

Field Summary

Fields inherited from interface org.sapia.soto.SotoConsts

SOTO_BOOTSTRAP, SOTO_DEBUG, SOTO_ENV_KEY, SOTO_INCLUDE_KEY

Constructor Summary

SotoContainer()
Constructor for SotoContainer.

Method Summary

void	bind(ServiceMetaData meta) Binds the given object to this instance, using the specified identifier.
void	bind(String id, Object ref) Binds an object under a given identifier.
void	dispose() Internally shuts down all services and layers.
SotoApplicationFactory	getApplicationFactory()
org.sapia.resource.ResourceHandler	getResourceHandlerFor(String uri) Returns the resource handler that corresponds to the given scheme.
SotoResourceHandlerChain	getResourceHandlers() Returns the resource handlers held by this instance.
Settings	getSettings()
SotoContainer	load(File f) Loads the Soto XML descriptor whose file is given.
SotoContainer	load(File f, Map map) Loads the Soto XML descriptor whose file is given.
SotoContainer	load(InputStream is) Loads the Soto XML descriptor whose stream is given.
SotoContainer	load(InputStream is, Map vars) Loads the Soto XML descriptor whose stream is given.
SotoContainer	load(String resourceName) Loads the Soto XML descriptor whose resource is given.
SotoContainer	load(String resourceName, Map vars) Loads the Soto XML descriptor whose resource is given.
SotoContainer	load(URL url, Map map) Loads the Soto XML descriptor whose URL is given.
Object	lookup(Class instanceOf) Looks up for the object that is an instance of the specified interface.
List	lookup(ServiceSelector selector, boolean returnMetadata) Internally adds the services that have been accepted by the passed in selector and returns them in a list to the caller.
Object	lookup(String id) Looks up for the object identified by the given ID and returns it.
Object	resolveRef(String id)
void	start() Internally starts the services bound to this container.
Env	toEnv()

Methods inherited from class java.lang.Object

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

Constructor Detail

SotoContainer

public SotoContainer()

Constructor for SotoContainer.

Method Detail

getSettings

public Settings getSettings()

Returns:

this instance's settings.

bind

public void bind(ServiceMetaData meta)
          throws DuplicateException,
                 Exception

Binds the given object to this instance, using the specified identifier.

Parameters:

meta - a ServiceMetaData.

Throws:

DuplicateException

Exception

bind

public void bind(String id,
                 Object ref)

Binds an object under a given identifier. That object can be retrieved later on through configuration by using its identifier.

Parameters:

id - an arbitrary identifier.

ref - an Object

resolveRef

public Object resolveRef(String id)
                  throws NotFoundException

Parameters:

id - the identifier under which the expected object was registered.

Returns:

the Object corresponding to the given identifier.

Throws:

NotFoundException

See Also:

#register(java.lang.String, java.lang.Object)

lookup

public Object lookup(String id)
              throws NotFoundException

Looks up for the object identified by the given ID and returns it.

Throws:

NotFoundException - if no object could be found.

lookup

public Object lookup(Class instanceOf)
              throws NotFoundException

Looks up for the object that is an instance of the specified interface.

This method is suboptimal: all services are traversed and tested against the specified interface; therefore, this method should not be used to perform repetitive lookups, but to lookup services at initialization time.

Parameters:

instanceOf - an interface, specified as a Class instance.

Throws:

NotFoundException - if no object could be found.

lookup

public List lookup(ServiceSelector selector,
                   boolean returnMetadata)

Internally adds the services that have been accepted by the passed in selector and returns them in a list to the caller.

Parameters:

selector - a ServiceSelector.

returnMetadata - if true, this instance will return ServiceMetadata instances. Else, it will return Service instances.

Returns:

a List of Service or ServiceMetadata instances.

load

public SotoContainer load(InputStream is,
                          Map vars)
                   throws Exception

Loads the Soto XML descriptor whose stream is given.

Parameters:

is - an InputStream.

vars - a Map of name/value pairs that can be recuperated in the configuration using the ${varname} notation.

Returns:

this instance.

Throws:

Exception

load

public SotoContainer load(InputStream is)
                   throws Exception

Loads the Soto XML descriptor whose stream is given.

Parameters:

is - an InputStream.

Returns:

this instance.

Throws:

Exception

load

public SotoContainer load(String resourceName,
                          Map vars)
                   throws Exception

Loads the Soto XML descriptor whose resource is given.

Parameters:

resourceName - the name of the classpath resource that contains the configuration.

vars - a Map of name/value pairs that can be recuperated in the configuration using the ${varname} notation.

Returns:

this instance.

Throws:

Exception

load

public SotoContainer load(String resourceName)
                   throws Exception

Loads the Soto XML descriptor whose resource is given.

Parameters:

resourceName - the name of the classpath resource that contains the configuration.

Returns:

this instance.

Throws:

Exception

load

public SotoContainer load(File f,
                          Map map)
                   throws Exception

Loads the Soto XML descriptor whose file is given.

Parameters:

f - a File.

map - a Map of name/value pairs that can be recuperated in the configuration using the ${varname} notation.

Returns:

this instance

Throws:

Exception

load

public SotoContainer load(URL url,
                          Map map)
                   throws Exception

Loads the Soto XML descriptor whose URL is given.

Parameters:

url - an URL.

map - a Map of name/value pairs that can be recuperated in the configuration using the ${varname} notation.

Returns:

this instance

Throws:

Exception

load

public SotoContainer load(File f)
                   throws Exception

Loads the Soto XML descriptor whose file is given.

Parameters:

f - a File.

Returns:

this instance.

Throws:

Exception

start

public void start()
           throws Exception

Internally starts the services bound to this container.

Throws:

Exception

See Also:

Service.start()

dispose

public void dispose()

Internally shuts down all services and layers.

See Also:

Service.dispose(), Layer.dispose()

getResourceHandlers

public SotoResourceHandlerChain getResourceHandlers()

Returns the resource handlers held by this instance. New handlers can be added by client applications.

Returns:

the ResourceHandlerChain that this instance holds.

getResourceHandlerFor

public org.sapia.resource.ResourceHandler getResourceHandlerFor(String uri)

Returns the resource handler that corresponds to the given scheme.

Returns:

a ResourceHander.

getApplicationFactory

public SotoApplicationFactory getApplicationFactory()

Returns:

the SotoApplicationFactory that is used to create objects from an XML configuration.

toEnv

public Env toEnv()

Returns:

the Env instance that corresponds to this container.