Examples with SDBException org.apache.jena.sdb.SDBException used on opensource projects

Example 21 with SDBException

use of org.apache.jena.sdb.SDBException in project jena by apache.

the class LoaderTuplesNodes method updateOneTuple.

// Queue up a triple, committing if we have enough chunks
private void updateOneTuple(TupleChange tuple) {
    if (currentLoader == null || !currentLoader.getTableDesc().getTableName().equals(tuple.table.getTableName())) {
        // mode is changing, so commit
        commitTuples();
        currentLoader = tupleLoaders.get(tuple.table.getTableName());
        if (currentLoader == null) {
            // make a new loader
            try {
                currentLoader = tupleLoaderClass.getConstructor(SDBConnection.class, TableDesc.class, Integer.TYPE).newInstance(connection(), tuple.table, chunkSize);
            } catch (Exception e) {
                throw new SDBException("Problem making new tupleloader", e);
            }
            currentLoader.start();
            tupleLoaders.put(tuple.table.getTableName(), currentLoader);
        }
    }
    if (tuple.toAdd)
        currentLoader.load(tuple.tuple);
    else
        currentLoader.unload(tuple.tuple);
}

Example 22 with SDBException

use of org.apache.jena.sdb.SDBException in project jena by apache.

the class NodeLayout2 method hash.

public static long hash(Node n) {
    // Get the bits and pieces for a value
    String lexForm = null;
    if (n.isURI())
        lexForm = n.getURI();
    else if (n.isLiteral())
        lexForm = n.getLiteralLexicalForm();
    else if (n.isBlank())
        lexForm = n.getBlankNodeLabel();
    else
        throw new SDBException("Attempt to hash a variable");
    String datatypeStr = "";
    if (n.isLiteral()) {
        datatypeStr = n.getLiteralDatatypeURI();
        if (NodeUtils.isSimpleString(n) || NodeUtils.isLangString(n))
            datatypeStr = null;
    }
    String langStr = "";
    if (n.isLiteral())
        langStr = n.getLiteralLanguage();
    ValueType vType = ValueType.lookup(n);
    return hash(lexForm, langStr, datatypeStr, vType.getTypeId());
}

Example 23 with SDBException

use of org.apache.jena.sdb.SDBException in project jena by apache.

the class QueryEngineSDB method init.

//    @Override
//    protected Op modifyOp(Op op)
//    { 
//        return op ;
//    }
private void init(DatasetGraphSDB dsg, Query query, Binding initialBinding, Context context) {
    if (context == null)
        context = ARQ.getContext().copy();
    // See "DynamicDatasets" -- this could be enabled.
    if (query != null) {
        if (query.hasDatasetDescription())
            throw new SDBException("Queries with dataset descriptions (FROM/FROM NAMED) not supported");
    }
    if (context.isDefined(ARQConstants.sysDatasetDescription))
        throw new SDBException("Queries with dataset descriptions set in the context not supported");
    this.store = dsg.getStore();
    this.request = new SDBRequest(store, query, context);
    this.originalOp = getOp();
    // Enable transformations : use own choice of transformations.
    // e.g. don't place filters
    // Op op = Algebra.optimize(originalOp, context) ;
    Op op = originalOp;
    // Do property functions.
    op = Transformer.transform(new TransformPropertyFunction(context), op);
    op = Transformer.transform(new TransformFilterEquality(), op);
    // Quad it now so it can be passed to Compile.compile
    op = Algebra.toQuadForm(op);
    // Compile to SQL / extract parts to execute as SQL.
    op = SDBCompile.compile(store, op, initialBinding, context, request);
    setOp(op);
}

Example 24 with SDBException

use of org.apache.jena.sdb.SDBException in project jena by apache.

the class FormatterSimpleSQLServer method reformatPrefixesWorker.

private void reformatPrefixesWorker(boolean loadPrefixes) {
    try {
        dropTable("Prefixes");
        connection().exec(sqlStr("CREATE TABLE Prefixes (", "    prefix NVARCHAR(" + UriWidth + ") NOT NULL ,", "    uri    NVARCHAR(" + UriWidth + ") NOT NULL ,", "  PRIMARY KEY(prefix)", ")"));
        if (loadPrefixes) {
            connection().execUpdate("INSERT INTO Prefixes VALUES ('x',       'http://example/')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('ex',      'http://example.org/')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('rdf',     'http://www.w3.org/1999/02/22-rdf-syntax-ns#')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('rdfs',    'http://www.w3.org/2000/01/rdf-schema#')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('xsd',     'http://www.w3.org/2001/XMLSchema#')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('owl' ,    'http://www.w3.org/2002/07/owl#')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('foaf',    'http://xmlns.com/foaf/0.1/')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('dc',      'http://purl.org/dc/elements/1.1/')");
            connection().execUpdate("INSERT INTO Prefixes VALUES ('dcterms', 'http://purl.org/dc/terms/')");
        }
    } catch (SQLException ex) {
        log.warn("Exception resetting table 'Prefixes'");
        throw new SDBException("SQLException resetting table 'Prefixes'", ex);
    }
}

Example 25 with SDBException

use of org.apache.jena.sdb.SDBException in project jena by apache.

the class FormatterSimpleSQLServer method addIndexes.

@Override
public void addIndexes() {
    try {
        connection().exec("CREATE INDEX PredObj ON " + TableDescSPO.name() + " (p,o)");
        connection().exec("CREATE INDEX ObjSubj ON " + TableDescSPO.name() + " (o,s)");
    } catch (SQLException ex) {
        throw new SDBException("SQLException indexing table 'Triples'", ex);
    }
}