org.apache.solr.handler.dataimport

Class ContextImpl

java.lang.Object

org.apache.solr.handler.dataimport.Context

org.apache.solr.handler.dataimport.ContextImpl

public class ContextImpl
extends Context

An implementation for the Context

This API is experimental and subject to change

Since:

solr 1.3

Field Summary

Fields

Modifier and Type	Field and Description
protected EntityProcessorWrapper	epw

Fields inherited from class org.apache.solr.handler.dataimport.Context

DELTA_DUMP, FIND_DELTA, FULL_DUMP, SCOPE_DOC, SCOPE_ENTITY, SCOPE_GLOBAL, SCOPE_SOLR_CORE

Constructor Summary

Constructors

Constructor and Description
ContextImpl(EntityProcessorWrapper epw, VariableResolver resolver, DataSource ds, String currProcess, Map<String,Object> global, ContextImpl parentContext, DocBuilder docBuilder)

Method Summary

Methods

Modifier and Type	Method and Description
String	currentProcess() Returns the current process FULL_DUMP, DELTA_DUMP, FIND_DELTA
void	deleteDoc(String id) delete a document by id
void	deleteDocByQuery(String query) delete documents by query
List<Map<String,String>>	getAllEntityFields() Returns all the fields put into an entity.
DataSource	getDataSource() Gets the datasource instance defined for this entity.
DataSource	getDataSource(String name) Gets a new DataSource instance with a name.
String	getEntityAttribute(String name) Get the value of any attribute put into this entity
EntityProcessor	getEntityProcessor() Returns the instance of EntityProcessor used for this entity
Exception	getLastException()
Context	getParentContext() Get the context instance for the parent entity.
Map<String,Object>	getRequestParameters() The request parameters passed over HTTP for this command the values in the map are either String(for single valued parameters) or List<String> (for multi-valued parameters)
String	getResolvedEntityAttribute(String name) Get the value of any attribute put into this entity after resolving all variables found in the attribute value
String	getScript() Returns the text specified in the script tag in the data-config.xml
String	getScriptLanguage() Returns the language of the script as specified in the script tag in data-config.xml
Object	getSessionAttribute(String name, String scope) get a value by name in the given scope (entity, document,global)
SolrCore	getSolrCore() Exposing the actual SolrCore to the components
Map<String,Object>	getStats() Makes available some basic running statistics such as "docCount", "deletedDocCount", "rowCount", "queryCount" and "skipDocCount"
VariableResolver	getVariableResolver() Returns the VariableResolver used in this entity which can be used to resolve the tokens in ${<namespce.name>}
boolean	isRootEntity() Returns if the current entity is the root entity
String	replaceTokens(String template) Resolve variables in a template
Object	resolve(String var) Use this directly to resolve variable
void	setLastException(Exception lastException)
void	setSessionAttribute(String name, Object val, String scope) Store values in a certain name and scope (entity, document,global)

Methods inherited from class java.lang.Object

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

Field Detail

epw

protected EntityProcessorWrapper epw

Constructor Detail

ContextImpl

public ContextImpl(EntityProcessorWrapper epw,
           VariableResolver resolver,
           DataSource ds,
           String currProcess,
           Map<String,Object> global,
           ContextImpl parentContext,
           DocBuilder docBuilder)

Method Detail

getEntityAttribute

public String getEntityAttribute(String name)

Description copied from class: Context

Get the value of any attribute put into this entity

Specified by:

getEntityAttribute in class Context

Parameters:

name - name of the attribute eg: 'name'

Returns:

value of named attribute in entity

getResolvedEntityAttribute

public String getResolvedEntityAttribute(String name)

Description copied from class: Context

Get the value of any attribute put into this entity after resolving all variables found in the attribute value

Specified by:

getResolvedEntityAttribute in class Context

Parameters:

name - name of the attribute

Returns:

value of the named attribute after resolving all variables

getAllEntityFields

public List<Map<String,String>> getAllEntityFields()

Description copied from class: Context

Returns all the fields put into an entity. each item (which is a map ) in the list corresponds to one field. each if the map contains the attribute names and values in a field

Specified by:

getAllEntityFields in class Context

Returns:

all fields in an entity

getVariableResolver

public VariableResolver getVariableResolver()

Description copied from class: Context

Returns the VariableResolver used in this entity which can be used to resolve the tokens in ${<namespce.name>}

Specified by:

getVariableResolver in class Context

Returns:

a VariableResolver instance

See Also:

VariableResolver

getDataSource

public DataSource getDataSource()

Description copied from class: Context

Gets the datasource instance defined for this entity. Do not close() this instance. Transformers should use the getDataSource(String name) method.

Specified by:

getDataSource in class Context

Returns:

a new DataSource instance as configured for the current entity

See Also:

DataSource, Context.getDataSource(String)

getDataSource

public DataSource getDataSource(String name)

Description copied from class: Context

Gets a new DataSource instance with a name. Ensure that you close() this after use because this is created just for this method call.

Specified by:

getDataSource in class Context

Parameters:

name - Name of the dataSource as defined in the dataSource tag

Returns:

a new DataSource instance

See Also:

DataSource

isRootEntity

public boolean isRootEntity()

Description copied from class: Context

Returns if the current entity is the root entity

Specified by:

isRootEntity in class Context

Returns:

true if current entity is the root entity, false otherwise

currentProcess

public String currentProcess()

Description copied from class: Context

Returns the current process FULL_DUMP, DELTA_DUMP, FIND_DELTA

Specified by:

currentProcess in class Context

Returns:

the type of the current running process

getRequestParameters

public Map<String,Object> getRequestParameters()

Description copied from class: Context

The request parameters passed over HTTP for this command the values in the map are either String(for single valued parameters) or List<String> (for multi-valued parameters)

Specified by:

getRequestParameters in class Context

Returns:

the request parameters passed in the URL to initiate this process

getEntityProcessor

public EntityProcessor getEntityProcessor()

Description copied from class: Context

Returns the instance of EntityProcessor used for this entity

Specified by:

getEntityProcessor in class Context

Returns:

instance of EntityProcessor used for the current entity

See Also:

EntityProcessor

setSessionAttribute

public void setSessionAttribute(String name,
                       Object val,
                       String scope)

Description copied from class: Context

Store values in a certain name and scope (entity, document,global)

Specified by:

setSessionAttribute in class Context

Parameters:

name - the key

val - the value

scope - the scope in which the given key, value pair is to be stored

getSessionAttribute

public Object getSessionAttribute(String name,
                         String scope)

Description copied from class: Context

get a value by name in the given scope (entity, document,global)

Specified by:

getSessionAttribute in class Context

Parameters:

name - the key

scope - the scope from which the value is to be retrieved

Returns:

the object stored in the given scope with the given key

getParentContext

public Context getParentContext()

Description copied from class: Context

Get the context instance for the parent entity. works only in the full dump If the current entity is rootmost a null is returned

Specified by:

getParentContext in class Context

Returns:

parent entity's Context

getSolrCore

public SolrCore getSolrCore()

Description copied from class: Context

Exposing the actual SolrCore to the components

Specified by:

getSolrCore in class Context

Returns:

the core

getStats

public Map<String,Object> getStats()

Description copied from class: Context

Makes available some basic running statistics such as "docCount", "deletedDocCount", "rowCount", "queryCount" and "skipDocCount"

Specified by:

getStats in class Context

Returns:

a Map containing running statistics of the current import

getScript

public String getScript()

Description copied from class: Context

Returns the text specified in the script tag in the data-config.xml

Specified by:

getScript in class Context

getScriptLanguage

public String getScriptLanguage()

Description copied from class: Context

Returns the language of the script as specified in the script tag in data-config.xml

Specified by:

getScriptLanguage in class Context

deleteDoc

public void deleteDoc(String id)

Description copied from class: Context

delete a document by id

Specified by:

deleteDoc in class Context

deleteDocByQuery

public void deleteDocByQuery(String query)

Description copied from class: Context

delete documents by query

Specified by:

deleteDocByQuery in class Context

resolve

public Object resolve(String var)

Description copied from class: Context

Use this directly to resolve variable

Specified by:

resolve in class Context

Parameters:

var - the variable name

Returns:

the resolved value

replaceTokens

public String replaceTokens(String template)

Description copied from class: Context

Resolve variables in a template

Specified by:

replaceTokens in class Context

Returns:

The string w/ variables resolved

getLastException

public Exception getLastException()

setLastException

public void setLastException(Exception lastException)