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() Return an empty access control schema from the first plugin on the list
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) 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) Submit a new access control schema to the current security plugin
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()

Return an empty access control schema from the first plugin on the list

Returns:

AccessControlSchema returned by the first plugin on the list

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

setAccessSchema

public void setAccessSchema(AccessControlSchema schema)

Submit a new access control schema to the current security plugin

Parameters:

schema - to submit

plugin - to submit to

removeAccessSchema

public void removeAccessSchema(AccessControlSchema schema)

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