#!/bin/env python

import joseki

from sys import stdout
from joseki import JosekiRequest
from rdflib.URIRef import URIRef
from rdflib.Namespace import Namespace

# A better name for the "wildcard" in a triple match
ANY = None

# Declare constants: better to use namespaces
DC = Namespace("http://purl.org/dc/elements/1.1/")
dcTitle = DC['title']

# The target model URL
# This is the Joseki online demo
modelURL = "http://jena.hpl.hp.com:2020/books"

book1 = URIRef("http://example.org/book/book1")
book2 = URIRef("http://example.org/book/book2")
book3 = URIRef("http://example.org/book/book3")
book4 = URIRef("http://example.org/book/book4")
book5 = URIRef("http://example.org/book/book5")

# ----------------------------------------

print "==== Example 4 - Find all the books with a given title (a string)"

store = joseki.triples(modelURL, None, dcTitle, "Harry Potter and the Goblet of Fire")

for s, p, o in store.triples((ANY,ANY,ANY)):
    if str(p) == str(dcTitle):
        print s, "->", o
    else:
        print s, "->" ,p, "->", o

theBook = store[book4]
print "book4[dc:title] => ",theBook[dcTitle]