About

RDF Turtle library that parses an RDF turtle document and returns a JSON object with detailed status of terms used in document as below;

{
    "result": "OK",
    "statements": [
        { "subject": "http://www.engie.fr/laptop", "predicate": "http://www.w3.org/1999/02/22-rdf-syntax-ns#type", "predicateStatus": "Verified", "objectStatus": "Verified" },
        { "subject": "http://www.engie.fr/laptop", "predicate": "http://www.w3.org/2000/01/rdf-schema#label", "predicateStatus": "Verified", "objectStatus": "Literal" }
    ]
}

following conformance checkings are done n the document;

• Syntax Checking : If there is a syntax error in a document, its highlighted in returned JSON object. If no syntax error, result returned is 'OK'
• Verify terms in Web of Data: Predicates and objects used are verified from prefixed IRIs, appropriate message is displayed as per result accordingly

Usage

Once the library has been added, following code snippet can be used to invoke the TurtleReader

TurtleReader tr=null;
try {
	tr = new TurtleReader(str);
} catch (UnsupportedEncodingException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}

and result returned by tr.parseData() would be in JSON format;

String jsonResult = tr.parseData();

TurtleReader provides two constructors; first one takes turtle file as a String;

public TurtleReader(String turtleDoc) throws UnsupportedEncodingException

and second constructor takes ByteArrayInputStream as input

public TurtleReader(ByteArrayInputStream turtleDoc)