edu.illinois.cs.cogcomp.wikifier.utils.freebase

Class QueryMQL

java.lang.Object

edu.illinois.cs.cogcomp.wikifier.utils.freebase.QueryMQL

public class QueryMQL
extends Object

For querying the fine grained types and/or mids from freebase. Some of this data is cached in FineGrainedNER class TODO make query response parsing generic For querying the MQL api for freebase

Author:

upadhya3

Field Summary

Fields

Modifier and Type	Field and Description
HashMap<String,List<String>>	new_title
HashMap<String,List<String>>	title_types
String	typeCacheFile

Constructor Summary

Constructors

Constructor and Description
QueryMQL()
QueryMQL(String apikey)
QueryMQL(String typeCacheLocation, String midCacheLocation, String apikey)

Method Summary

Modifier and Type	Method and Description
MQLQueryWrapper	buildQuery(String namespace, String value)
static String	decodeMQL(String s)
static String	encodeMQL(String str)
org.json.simple.JSONObject	getCursorAndResponse(String mqlQuery, String cursor)
static String	getMD5Checksum(String query)
org.json.simple.JSONObject	getResponse(String mqlQuery)
void	loadTypeCache()
String	lookupMid(MQLQueryWrapper mql) Deprecated.
String	lookupMidFromTitle(MQLQueryWrapper mql)
List<String>	lookupQuery(String query)
List<String>	lookupTypeFromTitle(MQLQueryWrapper mql)
static void	main(String[] args)
static String	toHex(String arg) Create queries with mid for type i.e.
void	writeNewTitleToCache()

Methods inherited from class java.lang.Object

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

Field Detail

title_types

public HashMap<String,List<String>> title_types

new_title

public HashMap<String,List<String>> new_title

typeCacheFile

public String typeCacheFile

Constructor Detail

QueryMQL

public QueryMQL(String typeCacheLocation,
                String midCacheLocation,
                String apikey)

QueryMQL

public QueryMQL()

QueryMQL

public QueryMQL(String apikey)

Method Detail

loadTypeCache

public void loadTypeCache()

writeNewTitleToCache

public void writeNewTitleToCache()
                          throws Exception

Throws:

Exception

lookupQuery

public List<String> lookupQuery(String query)
                         throws org.json.simple.parser.ParseException,
                                IOException

Throws:

org.json.simple.parser.ParseException

IOException

getCursorAndResponse

public org.json.simple.JSONObject getCursorAndResponse(String mqlQuery,
                                                       String cursor)
                                                throws IOException,
                                                       org.json.simple.parser.ParseException

Throws:

IOException

org.json.simple.parser.ParseException

getResponse

public org.json.simple.JSONObject getResponse(String mqlQuery)
                                       throws IOException,
                                              org.json.simple.parser.ParseException

Throws:

IOException

org.json.simple.parser.ParseException

lookupMidFromTitle

public String lookupMidFromTitle(MQLQueryWrapper mql)
                          throws Exception

Throws:

Exception

lookupTypeFromTitle

public List<String> lookupTypeFromTitle(MQLQueryWrapper mql)
                                 throws Exception

Throws:

Exception

lookupMid

@Deprecated
public String lookupMid(MQLQueryWrapper mql)
                             throws Exception

Deprecated.

returns the mid for a wiki title

Parameters:

mql -

Returns:

Throws:

Exception

getMD5Checksum

public static String getMD5Checksum(String query)

decodeMQL

public static String decodeMQL(String s)

buildQuery

public MQLQueryWrapper buildQuery(String namespace,
                                  String value)

toHex

public static String toHex(String arg)

Create queries with mid for type i.e. mid -> type

Returns:

encodeMQL

public static String encodeMQL(String str)

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception