Examples with Prologue org.apache.jena.sparql.core.Prologue used on opensource projects

Example 6 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class qexpr method main2.

public static void main2(String... argv) {
    CmdLineArgs cl = new CmdLineArgs(argv);
    ArgDecl helpDecl = new ArgDecl(ArgDecl.NoValue, "h", "help");
    cl.add(helpDecl);
    ArgDecl verboseDecl = new ArgDecl(ArgDecl.NoValue, "v", "verbose");
    cl.add(verboseDecl);
    ArgDecl versionDecl = new ArgDecl(ArgDecl.NoValue, "ver", "version", "V");
    cl.add(versionDecl);
    ArgDecl quietDecl = new ArgDecl(ArgDecl.NoValue, "q", "quiet");
    cl.add(quietDecl);
    ArgDecl reduceDecl = new ArgDecl(ArgDecl.NoValue, "reduce", "fold", "simplify");
    cl.add(reduceDecl);
    ArgDecl strictDecl = new ArgDecl(ArgDecl.NoValue, "strict");
    cl.add(strictDecl);
    ArgDecl printDecl = new ArgDecl(ArgDecl.HasValue, "print");
    cl.add(printDecl);
    try {
        cl.process();
    } catch (IllegalArgumentException ex) {
        System.err.println(ex.getMessage());
        usage(System.err);
        throw new CmdException();
    }
    if (cl.contains(helpDecl)) {
        usage();
        throw new TerminationException(0);
    }
    if (cl.contains(versionDecl)) {
        System.out.println("ARQ Version: " + ARQ.VERSION + " (Jena: " + Jena.VERSION + ")");
        throw new TerminationException(0);
    }
    // ==== General things
    boolean verbose = cl.contains(verboseDecl);
    boolean quiet = cl.contains(quietDecl);
    if (cl.contains(strictDecl))
        ARQ.setStrictMode();
    boolean actionCopySubstitute = cl.contains(reduceDecl);
    boolean actionPrintPrefix = false;
    boolean actionPrintSPARQL = false;
    boolean actionPrint = cl.contains(printDecl);
    for (String v : cl.getValues(printDecl)) {
        if (v.equalsIgnoreCase("prefix") || v.equalsIgnoreCase("op")) {
            actionPrintPrefix = true;
        } else if (v.equalsIgnoreCase("expr")) {
            actionPrintSPARQL = true;
        } else {
            System.err.println("Unknown print form: " + v);
            throw new TerminationException(0);
        }
    }
    for (int i = 0; i < cl.getNumPositional(); i++) {
        String exprStr = cl.getPositionalArg(i);
        exprStr = cl.indirect(exprStr);
        try {
            PrefixMapping pmap = PrefixMapping.Factory.create();
            pmap.setNsPrefixes(ARQConstants.getGlobalPrefixMap());
            pmap.setNsPrefix("", "http://example/");
            pmap.setNsPrefix("ex", "http://example/ns#");
            //              Node n = asNode() ;
            //              return makeNode(n) ;
            Expr expr = ExprUtils.parse(exprStr, pmap);
            if (verbose)
                System.out.print(expr.toString() + " => ");
            if (actionPrint) {
                if (actionPrintSPARQL)
                    System.out.println(ExprUtils.fmtSPARQL(expr));
                if (actionPrintPrefix)
                    WriterSSE.out(IndentedWriter.stdout, expr, new Prologue(pmap));
                continue;
            }
            try {
                if (actionCopySubstitute) {
                    Expr e = ExprLib.foldConstants(expr);
                    System.out.println(e);
                } else {
                    // Default action
                    ARQ.getContext().set(ARQConstants.sysCurrentTime, NodeFactoryExtra.nowAsDateTime());
                    FunctionEnv env = new ExecutionContext(ARQ.getContext(), null, null, null);
                    NodeValue r = expr.eval(null, env);
                    //System.out.println(r.asQuotedString()) ;
                    Node n = r.asNode();
                    String s = NodeFmtLib.displayStr(n);
                    System.out.println(s);
                }
            } catch (ExprEvalException ex) {
                System.out.println("Exception: " + ex.getMessage());
                throw new TerminationException(2);
            }
        } catch (QueryParseException ex) {
            System.err.println("Parse error: " + ex.getMessage());
            throw new TerminationException(2);
        }
    }
}

Example 7 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class TestPath method parse.

private static void parse(String path1, String path2) {
    Prologue prologue = new Prologue(pmap);
    Path p1 = PathParser.parse(path1, prologue);
    Path p2 = PathParser.parse(path2, prologue);
    assertEquals(p1, p2);
}

Example 8 with Prologue

use of org.apache.jena.sparql.core.Prologue in project jena by apache.

the class TestPath method parse.

private void parse(String string, boolean expectLegal) {
    Prologue prologue = new Prologue(pmap);
    Path p = null;
    try {
        p = PathParser.parse(string, prologue);
        //            System.out.println(PathWriterSSE.asString(p, new Prologue(pmap))) ;
        if (!expectLegal)
            fail("Expected error; " + string);
    } catch (QueryParseException ex) {
        if (expectLegal)
            fail("Expected success: " + string + ": " + ex.getMessage());
        return;
    }
    String x = p.toString(prologue);
    Path p2 = PathParser.parse(x, prologue);
    assertEquals(p, p2);
    String sse = WriterPath.asString(p, prologue);
    Item item = SSE.parseItem(sse, pmap);
    p2 = BuilderPath.buildPath(item);
    assertEquals(p, p2);
}