com.googlecode.fascinator.common

Class PythonUtils

java.lang.Object

com.googlecode.fascinator.common.PythonUtils

public class PythonUtils
extends Object

The purpose of this class is to expose common Java classes and methods we use to Python scripts. Messaging is a duplicate of com.googlecode.fascinator.MessagingServices since Common library cannot acces it.

Author:

Greg Pendlebury

Constructor Summary

Constructors

Constructor and Description
PythonUtils(JsonSimpleConfig config)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Map<String,List<String>> index, String field, String value) Add the provided key/value pair into the index.
String	basicDisplayType(String mimeType) A basic method for selecting common display templates from a given MIME type.
AccessControlSchema	getAccessSchema(String plugin) Return an empty access control schema from the given plugin
String	getDisplayMimeType(String[] indexerFormats, DigitalObject object, String preview) Find the MIME type to use at display time, giving first priority to the preview payload, then to the source payload.
JsonSimple	getJsonObject(InputStream in) Parse a JSON object from an inputstream
org.ontoware.rdf2go.model.Model	getRdfModel(InputStream rdfIn) Parse RDF data from an inputstream
org.ontoware.rdf2go.model.Model	getRdfModel(Payload payload) Parse RDF data stored in a payload
InputStream	getResource(String path) Get a resource from one of the compiled classes on the classpath
List<String>	getRolesWithAccess(String recordId) Find the list of roles with access to the given object
List<String>	getRolesWithAccess(String recordId, String plugin) Find the list of roles with access to the given object, but only looking at a single plugin.
List<String>	getUsersWithAccess(String recordId) Find the list of users with access to the given object
List<String>	getUsersWithAccess(String recordId, String plugin) Find the list of users with access to the given object, but only looking at a single plugin.
org.dom4j.Document	getXmlDocument(InputStream xmlIn) Parse an XML document from an inputstream
org.dom4j.Document	getXmlDocument(Payload payload) Parse an XML document stored in a payload
org.dom4j.Document	getXmlDocument(String xmlData) Parse an XML document from a string
void	registerNamespace(String prefix, String uri) Register a namespace for our XML parser
void	removeAccessSchema(AccessControlSchema schema, String plugin) Remove an access control schema from a security plugin
boolean	sendMessage(String messageQueue, String message) Send a message to the given message queue
void	setAccessSchema(AccessControlSchema schema, String plugin) Submit a new access control schema to a security plugin
void	shutdown() Try to closing any objects that require closure
String	solrDocument(Map<String,List<String>> fields) Generate a Solr document from a map of provided key/value pairs.
String	solrField(String field, String value) Generate an XML snippet representing a key/value pair in a Solr doc.
void	unregisterNamespace(String prefix) UN-register a namespace for our XML parser

Methods inherited from class java.lang.Object

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

Constructor Detail

PythonUtils

public PythonUtils(JsonSimpleConfig config)
            throws PluginException

Throws:

PluginException

Method Detail

shutdown

public void shutdown()

Try to closing any objects that require closure

sendMessage

public boolean sendMessage(String messageQueue,
                  String message)

Send a message to the given message queue

Parameters:

messageQueue - to connect to

message - to send

Returns:

boolean flag for success

getResource

public InputStream getResource(String path)

Get a resource from one of the compiled classes on the classpath

Parameters:

path - To the requested resource

Returns:

InputStream to the resource

getXmlDocument

public org.dom4j.Document getXmlDocument(Payload payload)

Parse an XML document stored in a payload

Parameters:

payload - holding the document

Returns:

Document object after parsing

getXmlDocument

public org.dom4j.Document getXmlDocument(String xmlData)

Parse an XML document from a string

Parameters:

xmlData - to parse

Returns:

Document object after parsing

getXmlDocument

public org.dom4j.Document getXmlDocument(InputStream xmlIn)

Parse an XML document from an inputstream

Parameters:

xmlIn, - the inputstream to read and parse

Returns:

Document object after parsing

registerNamespace

public void registerNamespace(String prefix,
                     String uri)

Register a namespace for our XML parser

Parameters:

prefix - of the namespace

uri - of the namespace

unregisterNamespace

public void unregisterNamespace(String prefix)

UN-register a namespace for our XML parser

Parameters:

prefix - of the namespace

getJsonObject

public JsonSimple getJsonObject(InputStream in)

Parse a JSON object from an inputstream

Parameters:

in, - the inputstream to read and parse

Returns:

JsonConfigHelper object after parsing

getRdfModel

public org.ontoware.rdf2go.model.Model getRdfModel(Payload payload)

Parse RDF data stored in a payload

Parameters:

payload - containing the data

Returns:

Model object after parsing

getRdfModel

public org.ontoware.rdf2go.model.Model getRdfModel(InputStream rdfIn)

Parse RDF data from an inputstream

Parameters:

rdfIn, - the inputstream to read and parse

Returns:

Model object after parsing

getAccessSchema

public AccessControlSchema getAccessSchema(String plugin)

Return an empty access control schema from the given plugin

Parameters:

plugin - to request the schema from

Returns:

AccessControlSchema returned by the plugin

setAccessSchema

public void setAccessSchema(AccessControlSchema schema,
                   String plugin)

Submit a new access control schema to a security plugin

Parameters:

schema - to submit

plugin - to submit to

removeAccessSchema

public void removeAccessSchema(AccessControlSchema schema,
                      String plugin)

Remove an access control schema from a security plugin

Parameters:

schema - to remove

plugin - to remove to

getRolesWithAccess

public List<String> getRolesWithAccess(String recordId)

Find the list of roles with access to the given object

Parameters:

recordId - the object to query

Returns:

List of roles with access to the object

getRolesWithAccess

public List<String> getRolesWithAccess(String recordId,
                              String plugin)

Find the list of roles with access to the given object, but only looking at a single plugin.

Parameters:

recordId - the object to query

plugin - the plugin we are interested in

Returns:

List of roles with access to the object

getUsersWithAccess

public List<String> getUsersWithAccess(String recordId)

Find the list of users with access to the given object

Parameters:

recordId - the object to query

Returns:

List of users with access to the object

getUsersWithAccess

public List<String> getUsersWithAccess(String recordId,
                              String plugin)

Find the list of users with access to the given object, but only looking at a single plugin.

Parameters:

recordId - the object to query

plugin - the plugin we are interested in

Returns:

List of users with access to the object

getDisplayMimeType

public String getDisplayMimeType(String[] indexerFormats,
                        DigitalObject object,
                        String preview)

Find the MIME type to use at display time, giving first priority to the preview payload, then to the source payload.

Parameters:

indexerFormats - The list of types so far allocated by the rules script.

object - The object being indexed.

preview - The preview payload

Returns:

String The MIME type to be used at display time.

basicDisplayType

public String basicDisplayType(String mimeType)

A basic method for selecting common display templates from a given MIME type. This simple algorithm is suitable for most rules files.

Parameters:

preview - The MIME type.

Returns:

String The display type.

add

public void add(Map<String,List<String>> index,
       String field,
       String value)

Add the provided key/value pair into the index.

Parameters:

index - : Data structure to add data into

field - : The field name

value - : The value to store

solrDocument

public String solrDocument(Map<String,List<String>> fields)

Generate a Solr document from a map of provided key/value pairs.

Parameters:

fields - : The lists of evaluated fields for the document

Returns:

String : The generated XML snippet

solrField

public String solrField(String field,
               String value)

Generate an XML snippet representing a key/value pair in a Solr doc.

Parameters:

field - : The field

value - : The value

Returns:

String : The generated XML snippet