Example 1 with ARQException
use of org.apache.jena.sparql.ARQException in project jena by apache.
the class CSVInput method vars.
private static List<Var> vars(CSVParser parser) {
final List<Var> vars = new ArrayList<>();
List<String> varNames = parser.parse1();
if (varNames == null)
throw new ARQException("SPARQL CSV Results malformed, input is empty");
for (String vn : varNames) {
vars.add(Var.alloc(vn));
}
return vars;
}
Also used :
ARQException(org.apache.jena.sparql.ARQException)
Var(org.apache.jena.sparql.core.Var)
ArrayList(java.util.ArrayList)
Example 2 with ARQException
use of org.apache.jena.sparql.ARQException in project jena by apache.
the class CSVOutput method format.
@Override
public void format(OutputStream out, boolean booleanResult) {
try {
out.write(headerBytes);
if (booleanResult)
out.write(yesBytes);
else
out.write(noBytes);
out.write(NLBytes);
} catch (IOException ex) {
throw new ARQException(ex);
}
}
Also used :
ARQException(org.apache.jena.sparql.ARQException)
IOException(java.io.IOException)
Example 3 with ARQException
use of org.apache.jena.sparql.ARQException in project jena by apache.
the class UpdateValidator method execute.
//static final String paramSyntaxExtended = "extendedSyntax" ;
@Override
protected void execute(HttpServletRequest httpRequest, HttpServletResponse httpResponse) {
try {
// if ( log.isInfoEnabled() )
// log.info("validation request") ;
String[] args = httpRequest.getParameterValues(paramUpdate);
if (args == null || args.length == 0) {
httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "No update parameter to validator");
return;
}
if (args.length > 1) {
httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "Too many update parameters");
return;
}
final String updateString = httpRequest.getParameter(paramUpdate).replaceAll("(\r|\n| )*$", "");
String updateSyntax = httpRequest.getParameter(paramSyntax);
if (updateSyntax == null || updateSyntax.equals(""))
updateSyntax = "SPARQL";
Syntax language = Syntax.lookup(updateSyntax);
if (language == null) {
httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "Unknown syntax: " + updateSyntax);
return;
}
String lineNumbersArg = httpRequest.getParameter(paramLineNumbers);
String[] a = httpRequest.getParameterValues(paramFormat);
// Currently default.
boolean outputSPARQL = true;
boolean lineNumbers = true;
if (lineNumbersArg != null)
lineNumbers = lineNumbersArg.equalsIgnoreCase("true") || lineNumbersArg.equalsIgnoreCase("yes");
// Headers
setHeaders(httpResponse);
ServletOutputStream outStream = httpResponse.getOutputStream();
outStream.println("<html>");
printHead(outStream, "SPARQL Update Validation Report");
outStream.println("<body>");
outStream.println("<h1>SPARQL Update Validator</h1>");
// Print as received
{
outStream.println("<p>Input:</p>");
// Not Java's finest hour.
Content c = new Content() {
@Override
public void print(IndentedWriter out) {
out.print(updateString);
}
};
output(outStream, c, lineNumbers);
}
// Attempt to parse it.
UpdateRequest request = null;
try {
request = UpdateFactory.create(updateString, "http://example/base/", language);
} catch (ARQException ex) {
// Over generous exception (should be QueryException)
// but this makes the code robust.
outStream.println("<p>Syntax error:</p>");
startFixed(outStream);
outStream.println(ex.getMessage());
finishFixed(outStream);
} catch (RuntimeException ex) {
outStream.println("<p>Internal error:</p>");
startFixed(outStream);
outStream.println(ex.getMessage());
finishFixed(outStream);
}
// Because we pass into anon inner classes
final UpdateRequest updateRequest = request;
// OK? Pretty print
if (updateRequest != null && outputSPARQL) {
outStream.println("<p>Formatted, parsed update request:</p>");
Content c = new Content() {
@Override
public void print(IndentedWriter out) {
updateRequest.output(out);
}
};
output(outStream, c, lineNumbers);
}
outStream.println("</body>");
outStream.println("</html>");
} catch (Exception ex) {
serviceLog.warn("Exception in doGet", ex);
}
}
Also used :
IndentedWriter(org.apache.jena.atlas.io.IndentedWriter)
ServletOutputStream(javax.servlet.ServletOutputStream)
UpdateRequest(org.apache.jena.update.UpdateRequest)
ARQException(org.apache.jena.sparql.ARQException)
Syntax(org.apache.jena.query.Syntax)
ARQException(org.apache.jena.sparql.ARQException)
IOException(java.io.IOException)
Example 4 with ARQException
use of org.apache.jena.sparql.ARQException in project jena by apache.
the class QueryValidator method execute.
//static final String paramSyntaxExtended = "extendedSyntax" ;
@Override
protected void execute(HttpServletRequest httpRequest, HttpServletResponse httpResponse) {
try {
// if ( log.isInfoEnabled() )
// log.info("validation request") ;
String[] args = httpRequest.getParameterValues(paramQuery);
if (args == null || args.length == 0) {
httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "No query parameter to validator");
return;
}
if (args.length > 1) {
httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "Too many query parameters");
return;
}
final String queryString = httpRequest.getParameter(paramQuery).replaceAll("(\r|\n| )*$", "");
// queryString = queryString.replace("\r\n", "\n") ;
// queryString.replaceAll("(\r|\n| )*$", "") ;
String querySyntax = httpRequest.getParameter(paramSyntax);
if (querySyntax == null || querySyntax.equals(""))
querySyntax = "SPARQL";
Syntax language = Syntax.lookup(querySyntax);
if (language == null) {
httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "Unknown syntax: " + querySyntax);
return;
}
String lineNumbersArg = httpRequest.getParameter(paramLineNumbers);
String[] a = httpRequest.getParameterValues(paramFormat);
boolean outputSPARQL = false;
boolean outputPrefix = false;
boolean outputAlgebra = false;
boolean outputQuads = false;
boolean outputOptimized = false;
boolean outputOptimizedQuads = false;
if (a != null) {
for (String anA : a) {
if (anA.equals("sparql")) {
outputSPARQL = true;
}
if (anA.equals("prefix")) {
outputPrefix = true;
}
if (anA.equals("algebra")) {
outputAlgebra = true;
}
if (anA.equals("quads")) {
outputQuads = true;
}
if (anA.equals("opt")) {
outputOptimized = true;
}
if (anA.equals("optquads")) {
outputOptimizedQuads = true;
}
}
}
// if ( ! outputSPARQL && ! outputPrefix )
// outputSPARQL = true ;
boolean lineNumbers = true;
if (lineNumbersArg != null)
lineNumbers = lineNumbersArg.equalsIgnoreCase("true") || lineNumbersArg.equalsIgnoreCase("yes");
// Headers
setHeaders(httpResponse);
ServletOutputStream outStream = httpResponse.getOutputStream();
outStream.println("<html>");
printHead(outStream, "SPARQL Query Validation Report");
outStream.println("<body>");
outStream.println("<h1>SPARQL Query Validator</h1>");
// Print query as received
{
outStream.println("<p>Input:</p>");
// Not Java's finest hour.
Content c = new Content() {
@Override
public void print(IndentedWriter out) {
out.print(queryString);
}
};
output(outStream, c, lineNumbers);
}
// Attempt to parse it.
Query query = null;
try {
query = QueryFactory.create(queryString, "http://example/base/", language);
} catch (ARQException ex) {
// Over generous exception (should be QueryException)
// but this makes the code robust.
outStream.println("<p>Syntax error:</p>");
startFixed(outStream);
outStream.println(ex.getMessage());
finishFixed(outStream);
} catch (RuntimeException ex) {
outStream.println("<p>Internal error:</p>");
startFixed(outStream);
outStream.println(ex.getMessage());
finishFixed(outStream);
}
if (query != null) {
if (outputSPARQL)
outputSyntax(outStream, query, lineNumbers);
if (outputAlgebra)
outputAlgebra(outStream, query, lineNumbers);
if (outputQuads)
outputAlgebraQuads(outStream, query, lineNumbers);
if (outputOptimized)
outputAlgebraOpt(outStream, query, lineNumbers);
if (outputOptimizedQuads)
outputAlgebraOptQuads(outStream, query, lineNumbers);
}
outStream.println("</body>");
outStream.println("</html>");
} catch (Exception ex) {
serviceLog.warn("Exception in doGet", ex);
}
}
Also used :
IndentedWriter(org.apache.jena.atlas.io.IndentedWriter)
Query(org.apache.jena.query.Query)
ServletOutputStream(javax.servlet.ServletOutputStream)
ARQException(org.apache.jena.sparql.ARQException)
Syntax(org.apache.jena.query.Syntax)
ARQException(org.apache.jena.sparql.ARQException)
IOException(java.io.IOException)
Example 5 with ARQException
use of org.apache.jena.sparql.ARQException in project jena by apache.
the class RDFConnectionRemote method fetchDataset.
@Override
public Dataset fetchDataset() {
if (destination == null)
throw new ARQException("Dataset operations not available - no dataset URL provided");
Dataset ds = DatasetFactory.createTxnMem();
Txn.executeWrite(ds, () -> {
TypedInputStream s = exec(() -> HttpOp.execHttpGet(destination, WebContent.defaultDatasetAcceptHeader));
Lang lang = RDFLanguages.contentTypeToLang(s.getContentType());
RDFDataMgr.read(ds, s, lang);
});
return ds;
}
Also used :
ARQException(org.apache.jena.sparql.ARQException)
TypedInputStream(org.apache.jena.atlas.web.TypedInputStream)
Aggregations
ARQException (org.apache.jena.sparql.ARQException)48
IOException (java.io.IOException)11
Var (org.apache.jena.sparql.core.Var)7
ArrayList (java.util.ArrayList)5
Lang (org.apache.jena.riot.Lang)5
BufferedReader (java.io.BufferedReader)4
ServletOutputStream (javax.servlet.ServletOutputStream)4
Node (org.apache.jena.graph.Node)4
Syntax (org.apache.jena.query.Syntax)4
RDFNode (org.apache.jena.rdf.model.RDFNode)4
IndentedWriter (org.apache.jena.atlas.io.IndentedWriter)2
Triple (org.apache.jena.graph.Triple)2
Query (org.apache.jena.query.Query)2
Model (org.apache.jena.rdf.model.Model)2
Resource (org.apache.jena.rdf.model.Resource)2
RiotException (org.apache.jena.riot.RiotException)2
HttpParams (org.apache.jena.sparql.engine.http.HttpParams)2
Item (org.apache.jena.sparql.sse.Item)2
UpdateRequest (org.apache.jena.update.UpdateRequest)2
BufferedWriter (java.io.BufferedWriter)1
