/* Generated By:JavaCC: Do not edit this line. TurtleStatementParser.java */
package org.texai.turtleStatementParser;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.log4j.Logger;
import org.openrdf.model.Literal;
import org.openrdf.model.Resource;
import org.openrdf.model.Statement;
import org.openrdf.model.URI;
import org.openrdf.model.Value;
import org.openrdf.model.impl.BNodeImpl;
import org.openrdf.model.impl.ContextStatementImpl;
import org.openrdf.model.impl.LiteralImpl;
import org.openrdf.model.impl.NumericLiteralImpl;
import org.openrdf.model.impl.StatementImpl;
import org.openrdf.model.impl.URIImpl;
import org.texai.kb.Constants;
import org.texai.turtleStatementParser.misc.ParsedTurtleStatementHandler;
import org.texai.util.TexaiException;
/** Provides lexicon and grammar for the turtle RDF statement format. */
@SuppressWarnings("unchecked")
public class TurtleStatementParser implements TurtleStatementParserConstants {
/** the log4j logger */
private static final Logger LOGGER = Logger.getLogger(TurtleStatementParser.class.getName());
/** the parsed turtle statement handler */
private ParsedTurtleStatementHandler parsedTurtleStatementHandler;
/** the URI namespace dictionary, prefix --> namespace */
private final HashMap<String, String> namespaceDictionary = new HashMap<>();
/** Returns a statement parser for the given string.
* @param string the given string
* @return a statement parser for the given string
*/
public static TurtleStatementParser makeTurtleStatementParser(final String string) {
final TurtleStatementParser turtleStatementParser
= new TurtleStatementParser(new BufferedInputStream(new ByteArrayInputStream(string.getBytes())));
turtleStatementParser.initialize();
return turtleStatementParser;
}
/** Returns a statement parser for the given input stream and the given statement handler.
* @param inputStream the given input stream
* @param parsedTurtleStatementHandler the given statement handler
* @return a statement parser for the given input stream and the given statement handler
*/
public static TurtleStatementParser makeTurtleStatementParser(
final BufferedInputStream inputStream,
final ParsedTurtleStatementHandler parsedTurtleStatementHandler) {
//Preconditions
assert inputStream != null : "inputStream must not be null";
assert parsedTurtleStatementHandler != null : "parsedTurtleStatementHandler must not be null";
final TurtleStatementParser turtleStatementParser = new TurtleStatementParser(inputStream);
turtleStatementParser.parsedTurtleStatementHandler = parsedTurtleStatementHandler;
turtleStatementParser.initialize();
return turtleStatementParser;
}
/** Initializes the statement parser. */
public void initialize() {
namespaceDictionary.put("rdf", Constants.RDF_NAMESPACE);
namespaceDictionary.put("rdfs", Constants.RDFS_NAMESPACE);
namespaceDictionary.put("owl", Constants.OWL_NAMESPACE);
namespaceDictionary.put("xsd", Constants.XSD_NAMESPACE);
namespaceDictionary.put("cyc", Constants.CYC_NAMESPACE);
namespaceDictionary.put("texai", Constants.TEXAI_NAMESPACE);
}
/** Gets the statements.
*
* @return the statements
*/
public List<Statement> getStatements() {
try {
return Statements();
} catch (ParseException ex) {
if (!ex.getMessage().startsWith("Encountered \"<EOF>\"")) {
throw new TexaiException(ex);
}
return new ArrayList<>();
}
}
/** Sets the parsed turtle statement handler.
*
* @param parsedTurtleStatementHandler the parsed turtle statement handler
*/
public void setParsedTurtleStatementHandler(final ParsedTurtleStatementHandler parsedTurtleStatementHandler) {
this.parsedTurtleStatementHandler = parsedTurtleStatementHandler;
}
/* GRAMMAR PRODUCTIONS */
final public List<Statement> Statements() throws ParseException {
List<Statement> statements = new ArrayList<>();
Statement statement;
label_1:
while (true) {
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case IDENTIFIER:
case VARIABLE:
case QNAME:
case URI:
;
break;
default:
jj_la1[0] = jj_gen;
break label_1;
}
statement = Statement();
if (parsedTurtleStatementHandler == null) {
statements.add(statement);
} else {
parsedTurtleStatementHandler.handleStatement(statement);
}
}
{
if (true) {
return statements;
}
}
throw new Error("Missing return statement in function");
}
final public Statement Statement() throws ParseException {
Resource subject;
Resource predicate;
Value object;
Resource context = null;
subject = Resource();
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case IDENTIFIER:
case VARIABLE:
case URI:
predicate = URI();
break;
case QNAME:
predicate = QName();
break;
default:
jj_la1[1] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
object = Value();
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case IN:
jj_consume_token(IN);
context = Resource();
break;
default:
jj_la1[2] = jj_gen;
;
}
jj_consume_token(DOT);
if (context == null) {
{
if (true) {
return new StatementImpl(subject, (URI) predicate, object);
}
}
} else {
{
if (true) {
return new ContextStatementImpl(subject, (URI) predicate, object, context);
}
}
}
throw new Error("Missing return statement in function");
}
final public Value Value() throws ParseException {
Value value;
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case IDENTIFIER:
case VARIABLE:
case QNAME:
case URI:
value = Resource();
break;
case INTEGER_LITERAL:
case FLOATING_POINT_LITERAL:
case STRING_LITERAL:
value = Literal();
break;
default:
jj_la1[3] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
{
if (true) {
return value;
}
}
throw new Error("Missing return statement in function");
}
final public Resource Resource() throws ParseException {
Resource resource;
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case IDENTIFIER:
case VARIABLE:
case URI:
resource = URI();
break;
case QNAME:
resource = QName();
break;
default:
jj_la1[4] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
{
if (true) {
return resource;
}
}
throw new Error("Missing return statement in function");
}
final public Resource QName() throws ParseException {
jj_consume_token(QNAME);
String uriString = token.image;
int index = uriString.indexOf(":");
if (index > -1) {
final String prefix = uriString.substring(0, index);
final String localName = uriString.substring(index + 1);
if (prefix.equals("_")) {
{
if (true) {
return new BNodeImpl(localName);
}
}
}
final String namespace = namespaceDictionary.get(prefix);
if (namespace == null) {
{
if (true) {
throw new TexaiException("missing namespace for URI " + uriString
+ "\nprefix: " + prefix + " namespace: " + namespace + " namespaceDictionary: " + namespaceDictionary);
}
}
} else {
{
if (true) {
return new URIImpl(namespace + localName);
}
}
}
} else {
{
if (true) {
throw new TexaiException("malformed URI " + token.image);
}
}
}
throw new Error("Missing return statement in function");
}
final public URI URI() throws ParseException {
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case IDENTIFIER:
jj_consume_token(IDENTIFIER);
break;
case URI:
jj_consume_token(URI);
break;
case VARIABLE:
jj_consume_token(VARIABLE);
break;
default:
jj_la1[5] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
if (token.image.startsWith("<") && token.image.endsWith(">")) {
String uriString = token.image.substring(1, token.image.length() - 1);
int index = uriString.indexOf(":");
if (index > -1) {
final String prefix = uriString.substring(0, index);
final String localName = uriString.substring(index + 1);
final String namespace = namespaceDictionary.get(prefix);
if (namespace == null) {
{
if (true) {
throw new TexaiException("missing namespace for URI " + uriString
+ "\nnamespace: " + namespace + " namespaceDictionary: " + namespaceDictionary);
}
}
} else {
{
if (true) {
return new URIImpl(namespace + localName);
}
}
}
} else {
{
if (true) {
throw new TexaiException("malformed URI " + token.image);
}
}
}
} else {
{
if (true) {
return new URIImpl(Constants.TEXAI_NAMESPACE + token.image);
}
}
}
throw new Error("Missing return statement in function");
}
final public Literal Literal() throws ParseException {
Literal literal;
switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
case INTEGER_LITERAL:
literal = IntegerLiteral();
break;
case FLOATING_POINT_LITERAL:
literal = FloatingPointLiteral();
break;
case STRING_LITERAL:
literal = StringLiteral();
{
if (true) {
return literal;
}
}
break;
default:
jj_la1[6] = jj_gen;
jj_consume_token(-1);
throw new ParseException();
}
throw new Error("Missing return statement in function");
}
final public Literal IntegerLiteral() throws ParseException {
jj_consume_token(INTEGER_LITERAL);
final long longValue = Long.parseLong(token.image);
if (longValue >= Integer.MIN_VALUE && longValue <= Integer.MAX_VALUE) {
{
if (true) {
return new NumericLiteralImpl((int) longValue);
}
}
} else {
{
if (true) {
return new NumericLiteralImpl(longValue);
}
}
}
throw new Error("Missing return statement in function");
}
final public Literal FloatingPointLiteral() throws ParseException {
jj_consume_token(FLOATING_POINT_LITERAL);
{
if (true) {
return new NumericLiteralImpl(Double.parseDouble(token.image));
}
}
throw new Error("Missing return statement in function");
}
final public Literal StringLiteral() throws ParseException {
jj_consume_token(STRING_LITERAL);
final int index = token.image.indexOf("^^<");
if (index == -1) {
{
if (true) {
return new LiteralImpl(token.image.substring(1, token.image.length() - 1));
}
}
} else {
final URI datatype = new URIImpl(token.image.substring(index + 3, token.image.length() - 1));
{
if (true) {
return new LiteralImpl(token.image.substring(1, index - 1), datatype);
}
}
}
throw new Error("Missing return statement in function");
}
public TurtleStatementParserTokenManager token_source;
SimpleCharStream jj_input_stream;
public Token token, jj_nt;
private int jj_ntk;
private int jj_gen;
final private int[] jj_la1 = new int[7];
static private int[] jj_la1_0;
static private int[] jj_la1_1;
static {
jj_la1_0();
jj_la1_1();
}
private static void jj_la1_0() {
jj_la1_0 = new int[]{0x0, 0x0, 0x80000, 0x48800000, 0x0, 0x0, 0x48800000,};
}
private static void jj_la1_1() {
jj_la1_1 = new int[]{0x1032, 0x1032, 0x0, 0x1032, 0x1032, 0x1012, 0x0,};
}
public TurtleStatementParser(java.io.InputStream stream) {
this(stream, null);
}
public TurtleStatementParser(java.io.InputStream stream, String encoding) {
try {
jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1);
} catch (java.io.UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
token_source = new TurtleStatementParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 7; i++) {
jj_la1[i] = -1;
}
}
public void ReInit(java.io.InputStream stream) {
ReInit(stream, null);
}
public void ReInit(java.io.InputStream stream, String encoding) {
try {
jj_input_stream.ReInit(stream, encoding, 1, 1);
} catch (java.io.UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
token_source.ReInit(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 7; i++) {
jj_la1[i] = -1;
}
}
public TurtleStatementParser(java.io.Reader stream) {
jj_input_stream = new SimpleCharStream(stream, 1, 1);
token_source = new TurtleStatementParserTokenManager(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 7; i++) {
jj_la1[i] = -1;
}
}
public void ReInit(java.io.Reader stream) {
jj_input_stream.ReInit(stream, 1, 1);
token_source.ReInit(jj_input_stream);
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 7; i++) {
jj_la1[i] = -1;
}
}
public TurtleStatementParser(TurtleStatementParserTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 7; i++) {
jj_la1[i] = -1;
}
}
public void ReInit(TurtleStatementParserTokenManager tm) {
token_source = tm;
token = new Token();
jj_ntk = -1;
jj_gen = 0;
for (int i = 0; i < 7; i++) {
jj_la1[i] = -1;
}
}
final private Token jj_consume_token(int kind) throws ParseException {
Token oldToken;
if ((oldToken = token).next != null) {
token = token.next;
} else {
token = token.next = token_source.getNextToken();
}
jj_ntk = -1;
if (token.kind == kind) {
jj_gen++;
return token;
}
token = oldToken;
jj_kind = kind;
throw generateParseException();
}
final public Token getNextToken() {
if (token.next != null) {
token = token.next;
} else {
token = token.next = token_source.getNextToken();
}
jj_ntk = -1;
jj_gen++;
return token;
}
final public Token getToken(int index) {
Token t = token;
for (int i = 0; i < index; i++) {
if (t.next != null) {
t = t.next;
} else {
t = t.next = token_source.getNextToken();
}
}
return t;
}
final private int jj_ntk() {
if ((jj_nt = token.next) == null) {
return (jj_ntk = (token.next = token_source.getNextToken()).kind);
} else {
return (jj_ntk = jj_nt.kind);
}
}
private java.util.Vector jj_expentries = new java.util.Vector();
private int[] jj_expentry;
private int jj_kind = -1;
public ParseException generateParseException() {
jj_expentries.removeAllElements();
boolean[] la1tokens = new boolean[45];
for (int i = 0; i < 45; i++) {
la1tokens[i] = false;
}
if (jj_kind >= 0) {
la1tokens[jj_kind] = true;
jj_kind = -1;
}
for (int i = 0; i < 7; i++) {
if (jj_la1[i] == jj_gen) {
for (int j = 0; j < 32; j++) {
if ((jj_la1_0[i] & (1 << j)) != 0) {
la1tokens[j] = true;
}
if ((jj_la1_1[i] & (1 << j)) != 0) {
la1tokens[32 + j] = true;
}
}
}
}
for (int i = 0; i < 45; i++) {
if (la1tokens[i]) {
jj_expentry = new int[1];
jj_expentry[0] = i;
jj_expentries.addElement(jj_expentry);
}
}
int[][] exptokseq = new int[jj_expentries.size()][];
for (int i = 0; i < jj_expentries.size(); i++) {
exptokseq[i] = (int[]) jj_expentries.elementAt(i);
}
return new ParseException(token, exptokseq, tokenImage);
}
final public void enable_tracing() {
}
final public void disable_tracing() {
}
}