org.apache.shindig.config
Class JsonContainerConfig

java.lang.Object
  org.apache.shindig.config.AbstractContainerConfig
      org.apache.shindig.config.JsonContainerConfig

All Implemented Interfaces:

ContainerConfig

public class JsonContainerConfig
extends AbstractContainerConfig

Represents a container configuration using JSON notation. See config/container.js for an example configuration. We use a cascading model, so you only have to specify attributes in your config that you actually want to change. String values may use expressions. The variable context defaults to the 'current' container, but parent values may be accessed through the special "parent" property.

Field Summary

static String	CONTAINER_KEY
static char	FILE_SEPARATOR
static String	PARENT_KEY
static String	SERVER_HOST
static String	SERVER_PORT

Fields inherited from interface org.apache.shindig.config.ContainerConfig

DEFAULT_CONTAINER

Constructor Summary

JsonContainerConfig(org.json.JSONObject json, Expressions expressions)
Creates a new configuration from a JSON Object, for use in testing.

JsonContainerConfig(String containers, Expressions expressions)

JsonContainerConfig(String containers, String host, String port, String securityTokenKeyFile, Expressions expressions)
Creates a new configuration from files.

Method Summary

protected javax.el.ELContext	createExpressionContext(String container) Protected to allow overriding.
Collection<String>	getContainers()
protected Expressions	getExpressions() Make Expressions available to subclasses so they can create ELContexts
Map<String,Object>	getProperties(String container) Fetch all properties for the given container configuration.
Object	getProperty(String container, String property)
protected void	init() Initializes the configuration.
protected void	loadFromString(String json, org.json.JSONObject all) Processes a container file.
String	toString()

Methods inherited from class org.apache.shindig.config.AbstractContainerConfig

getBool, getInt, getList, getMap, getString

Methods inherited from class java.lang.Object

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

Field Detail

FILE_SEPARATOR

public static final char FILE_SEPARATOR

See Also:

Constant Field Values

PARENT_KEY

public static final String PARENT_KEY

See Also:

Constant Field Values

CONTAINER_KEY

public static final String CONTAINER_KEY

See Also:

Constant Field Values

SERVER_PORT

public static final String SERVER_PORT

See Also:

Constant Field Values

SERVER_HOST

public static final String SERVER_HOST

See Also:

Constant Field Values

Constructor Detail

JsonContainerConfig

public JsonContainerConfig(String containers,
                           Expressions expressions)
                    throws ContainerConfigException

Throws:

ContainerConfigException

JsonContainerConfig

@Inject
public JsonContainerConfig(String containers,
                                  @Nullable
                                  String host,
                                  @Nullable
                                  String port,
                                  @Nullable
                                  String securityTokenKeyFile,
                                  Expressions expressions)
                    throws ContainerConfigException

Creates a new configuration from files.

Throws:

ContainerConfigException

JsonContainerConfig

public JsonContainerConfig(org.json.JSONObject json,
                           Expressions expressions)

Creates a new configuration from a JSON Object, for use in testing.

Method Detail

init

protected void init()

Initializes the configuration. Called during construction.

getContainers

public Collection<String> getContainers()

Specified by:

getContainers in interface ContainerConfig

Overrides:

getContainers in class AbstractContainerConfig

Returns:

The set of all containers that are currently registered.

getProperties

public Map<String,Object> getProperties(String container)

Description copied from interface: ContainerConfig

Fetch all properties for the given container configuration.

Specified by:

getProperties in interface ContainerConfig

Overrides:

getProperties in class AbstractContainerConfig

getProperty

public Object getProperty(String container,
                          String property)

Specified by:

getProperty in interface ContainerConfig

Specified by:

getProperty in class AbstractContainerConfig

Returns:

The configuration property stored under the given name for the given container.

getExpressions

protected Expressions getExpressions()

Make Expressions available to subclasses so they can create ELContexts

createExpressionContext

protected javax.el.ELContext createExpressionContext(String container)

Protected to allow overriding.

loadFromString

protected void loadFromString(String json,
                              org.json.JSONObject all)
                       throws ContainerConfigException

Processes a container file.

Parameters:

json -

Throws:

ContainerConfigException

toString

public String toString()

Overrides:

toString in class Object