Package com.illumon.iris.db.util

Class IrisDbScalaSession

java.lang.Object

com.illumon.iris.db.util.IrisDbScalaSession

All Implemented Interfaces:

ScriptSession

public class IrisDbScalaSession
extends Object
implements ScriptSession

Interactive Console Session using a Scala Interpreter

Field Summary

Fields

Modifier and Type	Field	Description
static String	SCRIPT_TYPE

Constructor Summary

Constructors

Constructor	Description
IrisDbScalaSession(com.fishlib.io.logger.Logger log, Database database, boolean runInitScripts)

Method Summary

Modifier and Type	Method	Description
void	clearScriptPathLoader()	Removes the currently configured script path loader from this script.
void	evaluate(String command)	Evaluates command in the context of the current ScriptSession.
void	evaluate(String command, String scriptName)	Evaluates command in the context of the current ScriptSession.
Object	getVariable(String name)	Retrieve a variable from the script session's bindings.
<T> T	getVariable(String name, T defaultValue)	Retrieve a variable from the script session's bindings.
Set<String>	getVariableNames()	Retrieves all of the variable names present in the session's scope
Map<String,Object>	getVariables()	Retrieves all of the variables present in the session's scope (e.g., Groovy binding, Python globals()).
boolean	hasVariableName(String name)	Check if the scope has the given variable name
void	onPersistentQueryInitializationBegin(Supplier<ScriptPathLoader> pathLoader, ScriptPathLoaderState scriptLoaderState)	Called before PersistentQuery initialization, should setup sourcing from the controller (as required).
void	onPersistentQueryInitializationEnd()	Called after PersistentQuery initialization.
String	scriptType()
void	setScriptPathLoader(Supplier<ScriptPathLoader> scriptPathLoader, boolean caching)	Sets the scriptPathLoader that is in use for this session.
boolean	setUseOriginalScriptLoaderState(boolean useOriginal)	Informs the session whether or not we should be using the original ScriptLoaderState for source commands.
void	setVariable(String name, Object value)	Inserts a value into the script's scope.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.util.ScriptSession

sanitizeThrowable

Field Details

SCRIPT_TYPE

public static String SCRIPT_TYPE

Constructor Details

IrisDbScalaSession

public IrisDbScalaSession(com.fishlib.io.logger.Logger log, Database database, boolean runInitScripts)

Method Details

getVariable

public Object getVariable(String name) throws QueryScope.MissingVariableException

Description copied from interface: ScriptSession

Retrieve a variable from the script session's bindings.

Specified by:

getVariable in interface ScriptSession

Parameters:

name - the variable to retrieve

Returns:

the variable

Throws:

QueryScope.MissingVariableException - if the variable does not exist

getVariable

public <T> T getVariable(String name, T defaultValue)

Description copied from interface: ScriptSession

Retrieve a variable from the script session's bindings. If the variable is not present, return defaultValue. If the variable is present, but is not of type (T), a ClassCastException may result.

Specified by:

getVariable in interface ScriptSession

Type Parameters:

T - the type of the variable

Parameters:

name - the variable to retrieve

defaultValue - the value to use when no value is present in the session's scope

Returns:

the value of the variable, or defaultValue if not present

evaluate

public void evaluate(String command)

Description copied from interface: ScriptSession

Evaluates command in the context of the current ScriptSession.

Specified by:

evaluate in interface ScriptSession

Parameters:

command - the command to evaluate

evaluate

public void evaluate(String command, @Nullable String scriptName)

Description copied from interface: ScriptSession

Evaluates command in the context of the current ScriptSession.

Specified by:

evaluate in interface ScriptSession

Parameters:

command - the command to evaluate

scriptName - an optional script name, which may be ignored by the implementation, or used improve error messages or for other internal purposes

getVariables

public Map<String,Object> getVariables()

Description copied from interface: ScriptSession

Retrieves all of the variables present in the session's scope (e.g., Groovy binding, Python globals()).

Specified by:

getVariables in interface ScriptSession

Returns:

an unmodifiable map with variable names as the keys, and the Objects as the result

getVariableNames

public Set<String> getVariableNames()

Description copied from interface: ScriptSession

Retrieves all of the variable names present in the session's scope

Specified by:

getVariableNames in interface ScriptSession

Returns:

an unmodifiable set of variable names

hasVariableName

public boolean hasVariableName(String name)

Description copied from interface: ScriptSession

Check if the scope has the given variable name

Specified by:

hasVariableName in interface ScriptSession

Parameters:

name - the variable name

Returns:

True iff the scope has the given variable name

setVariable

public void setVariable(String name, Object value)

Description copied from interface: ScriptSession

Inserts a value into the script's scope.

Specified by:

setVariable in interface ScriptSession

Parameters:

name - the variable name to set

value - the new value of the variable

scriptType

public String scriptType()

Specified by:

scriptType in interface ScriptSession

Returns:

a textual description of this script session's language for use in messages.

onPersistentQueryInitializationBegin

public void onPersistentQueryInitializationBegin(Supplier<ScriptPathLoader> pathLoader, ScriptPathLoaderState scriptLoaderState)

Description copied from interface: ScriptSession

Called before PersistentQuery initialization, should setup sourcing from the controller (as required).

Specified by:

onPersistentQueryInitializationBegin in interface ScriptSession

onPersistentQueryInitializationEnd

public void onPersistentQueryInitializationEnd()

Description copied from interface: ScriptSession

Called after PersistentQuery initialization.

Specified by:

onPersistentQueryInitializationEnd in interface ScriptSession

setScriptPathLoader

public void setScriptPathLoader(Supplier<ScriptPathLoader> scriptPathLoader, boolean caching)

Description copied from interface: ScriptSession

Sets the scriptPathLoader that is in use for this session.

Specified by:

setScriptPathLoader in interface ScriptSession

Parameters:

scriptPathLoader - a supplier of a script path loader

caching - whether the source operation should cache results

clearScriptPathLoader

public void clearScriptPathLoader()

Description copied from interface: ScriptSession

Removes the currently configured script path loader from this script.

Specified by:

clearScriptPathLoader in interface ScriptSession

setUseOriginalScriptLoaderState

public boolean setUseOriginalScriptLoaderState(boolean useOriginal)

Description copied from interface: ScriptSession

Informs the session whether or not we should be using the original ScriptLoaderState for source commands.

Specified by:

setUseOriginalScriptLoaderState in interface ScriptSession

Parameters:

useOriginal - whether to use the script loader state at persistent query initialization