com.orientechnologies.orient.core.command.script

Class OScriptManager

java.lang.Object

com.orientechnologies.orient.core.command.script.OScriptManager

public class OScriptManager
extends Object

Executes Script Commands.

Author:

Luca Garulli

See Also:

OCommandScript

Field Summary

Fields

Modifier and Type	Field and Description
protected ConcurrentHashMap<String,ODatabaseScriptManager>	dbManagers
protected String	DEF_LANGUAGE
protected String	defaultLanguage
protected static Object[]	EMPTY_PARAMS
protected Map<String,ScriptEngineFactory>	engines
protected Map<String,OScriptFormatter>	formatters
protected List<OScriptInjection>	injections
protected static int	LINES_AROUND_ERROR
protected ScriptEngineManager	scriptEngineManager

Constructor Summary

Constructors

Constructor and Description
OScriptManager()

Method Summary

Modifier and Type	Method and Description
OPartitionedObjectPool.PoolEntry<ScriptEngine>	acquireDatabaseEngine(String databaseName, String language) Acquires a database engine from the pool.
Bindings	bind(Bindings binding, ODatabaseDocumentTx db, OCommandContext iContext, Map<Object,Object> iArgs)
void	close(String iDatabaseName) Closes the pool for a database.
boolean	existsEngine(String iLanguage)
ScriptEngine	getEngine(String iLanguage)
Map<String,OScriptFormatter>	getFormatters() Ask to the Script engine all the formatters
String	getFunctionDefinition(OFunction iFunction)
String	getFunctionInvoke(OFunction iFunction, Object[] iArgs)
List<OScriptInjection>	getInjections()
String	getLibrary(ODatabase<?> db, String iLanguage) Formats the library of functions for a language.
Iterable<String>	getSupportedLanguages()
OScriptManager	registerEngine(String iLanguage, ScriptEngineFactory iEngine)
OScriptManager	registerFormatter(String iLanguage, OScriptFormatter iFormatterImpl)
void	registerInjection(OScriptInjection iInj)
void	releaseDatabaseEngine(String iLanguage, String iDatabaseName, OPartitionedObjectPool.PoolEntry<ScriptEngine> poolEntry) Acquires a database engine from the pool.
String	throwErrorMessage(ScriptException e, String lib)
void	unbind(Bindings binding) Deprecated.
void	unbind(Bindings binding, OCommandContext iContext, Map<Object,Object> iArgs) Unbinds variables
void	unregisterInjection(OScriptInjection iInj)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_PARAMS

protected static final Object[] EMPTY_PARAMS

LINES_AROUND_ERROR

protected static final int LINES_AROUND_ERROR

See Also:

Constant Field Values

DEF_LANGUAGE

protected final String DEF_LANGUAGE

See Also:

Constant Field Values

defaultLanguage

protected String defaultLanguage

scriptEngineManager

protected ScriptEngineManager scriptEngineManager

engines

protected Map<String,ScriptEngineFactory> engines

formatters

protected Map<String,OScriptFormatter> formatters

injections

protected List<OScriptInjection> injections

dbManagers

protected ConcurrentHashMap<String,ODatabaseScriptManager> dbManagers

Constructor Detail

OScriptManager

public OScriptManager()

Method Detail

getFunctionDefinition

public String getFunctionDefinition(OFunction iFunction)

getFunctionInvoke

public String getFunctionInvoke(OFunction iFunction,
                                Object[] iArgs)

getLibrary

public String getLibrary(ODatabase<?> db,
                         String iLanguage)

Formats the library of functions for a language.

Parameters:

db - Current database instance

iLanguage - Language as filter

Returns:

String containing all the functions

existsEngine

public boolean existsEngine(String iLanguage)

getEngine

public ScriptEngine getEngine(String iLanguage)

acquireDatabaseEngine

public OPartitionedObjectPool.PoolEntry<ScriptEngine> acquireDatabaseEngine(String databaseName,
                                                                            String language)

Acquires a database engine from the pool. Once finished using it, the instance MUST be returned in the pool by calling the method #releaseDatabaseEngine(String, ScriptEngine).

Parameters:

databaseName - Database name

language - Script language

Returns:

ScriptEngine instance with the function library already parsed

See Also:

releaseDatabaseEngine(String, String, OPartitionedObjectPool.PoolEntry)

releaseDatabaseEngine

public void releaseDatabaseEngine(String iLanguage,
                                  String iDatabaseName,
                                  OPartitionedObjectPool.PoolEntry<ScriptEngine> poolEntry)

Acquires a database engine from the pool. Once finished using it, the instance MUST be returned in the pool by calling the method

Parameters:

iLanguage - Script language

iDatabaseName - Database name

poolEntry - Pool entry to free

See Also:

acquireDatabaseEngine(String, String)

getSupportedLanguages

public Iterable<String> getSupportedLanguages()

bind

public Bindings bind(Bindings binding,
                     ODatabaseDocumentTx db,
                     OCommandContext iContext,
                     Map<Object,Object> iArgs)

throwErrorMessage

public String throwErrorMessage(ScriptException e,
                                String lib)

unbind

@Deprecated
public void unbind(Bindings binding)

Deprecated.

unbind

public void unbind(Bindings binding,
                   OCommandContext iContext,
                   Map<Object,Object> iArgs)

Unbinds variables

Parameters:

binding -

registerInjection

public void registerInjection(OScriptInjection iInj)

unregisterInjection

public void unregisterInjection(OScriptInjection iInj)

getInjections

public List<OScriptInjection> getInjections()

registerEngine

public OScriptManager registerEngine(String iLanguage,
                                     ScriptEngineFactory iEngine)

registerFormatter

public OScriptManager registerFormatter(String iLanguage,
                                        OScriptFormatter iFormatterImpl)

getFormatters

public Map<String,OScriptFormatter> getFormatters()

Ask to the Script engine all the formatters

Returns:

Map containing all the formatters

close

public void close(String iDatabaseName)

Closes the pool for a database. This is called at Orient shutdown and in case a function has been updated.

Parameters:

iDatabaseName -