Examples with TextColumn org.apache.rya.accumulo.documentIndex.TextColumn used on opensource projects

Example 1 with TextColumn

use of org.apache.rya.accumulo.documentIndex.TextColumn in project incubator-rya by apache.

the class StarQuery method nodeToTextColumn.

// assumes nodes forms valid star query with only one common variable
// assumes nodes and commonVar has been set
private TextColumn nodeToTextColumn(final StatementPattern node, final int i) throws RyaTypeResolverException {
    final RyaContext rc = RyaContext.getInstance();
    final Var subjVar = node.getSubjectVar();
    final Var predVar = node.getPredicateVar();
    final Var objVar = node.getObjectVar();
    final RyaURI predURI = (RyaURI) RdfToRyaConversions.convertValue(node.getPredicateVar().getValue());
    // assumes StatementPattern contains at least on variable
    if (subjVar.isConstant()) {
        if (commonVarConstant()) {
            varPos.put(objVar.getName(), i);
            return new TextColumn(new Text(predURI.getData()), new Text("object"));
        } else {
            return new TextColumn(new Text(predURI.getData()), new Text("subject" + "\u0000" + subjVar.getValue().stringValue()));
        }
    } else if (objVar.isConstant()) {
        if (commonVarConstant()) {
            varPos.put(subjVar.getName(), i);
            return new TextColumn(new Text(predURI.getData()), new Text("subject"));
        } else {
            isCommonVarURI = true;
            final RyaType objType = RdfToRyaConversions.convertValue(objVar.getValue());
            final byte[][] b1 = rc.serializeType(objType);
            final byte[] b2 = Bytes.concat("object".getBytes(StandardCharsets.UTF_8), "\u0000".getBytes(StandardCharsets.UTF_8), b1[0], b1[1]);
            return new TextColumn(new Text(predURI.getData()), new Text(b2));
        }
    } else {
        if (subjVar.getName().equals(commonVarName)) {
            isCommonVarURI = true;
            varPos.put(objVar.getName(), i);
            final TextColumn tc = new TextColumn(new Text(predURI.getData()), new Text("object"));
            tc.setIsPrefix(true);
            return tc;
        } else {
            varPos.put(subjVar.getName(), i);
            final TextColumn tc = new TextColumn(new Text(predURI.getData()), new Text("subject"));
            tc.setIsPrefix(true);
            return tc;
        }
    }
}

Example 2 with TextColumn

use of org.apache.rya.accumulo.documentIndex.TextColumn in project incubator-rya by apache.

the class StarQuery method toString.

// private static Set<String> getSpVariables(StatementPattern sp) {
// 
// Set<String> variables = Sets.newHashSet();
// List<Var> varList = sp.getVarList();
// 
// for(Var v: varList) {
// if(!v.isConstant()) {
// variables.add(v.getName());
// }
// }
// 
// return variables;
// 
// }
// 
@Override
public String toString() {
    String s = "Term conditions: " + "\n";
    for (final TextColumn element : this.nodeColumnCond) {
        s = s + element.toString() + "\n";
    }
    s = s + "Common Var: " + this.commonVar.toString() + "\n";
    s = s + "Context: " + this.contextURI;
    return s;
}

Example 3 with TextColumn

use of org.apache.rya.accumulo.documentIndex.TextColumn in project incubator-rya by apache.

the class StarQueryTest method testGetContrainedQuery.

@Test
public void testGetContrainedQuery() throws RyaTypeResolverException, MalformedQueryException {
    String q1 = // 
    "" + // 
    "SELECT ?X ?Y1 ?Y2 " + // 
    "{" + // 
    "GRAPH <http://joe> { " + // 
    "?X <uri:cf1> ?Y1 ." + // 
    "?X <uri:cf2> ?Y2 ." + // 
    "?X <uri:cf3> ?Y3 ." + // 
    "}" + "}";
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq1 = null;
    pq1 = parser.parseQuery(q1, null);
    TupleExpr te1 = pq1.getTupleExpr();
    System.out.println(te1);
    List<StatementPattern> spList1 = StatementPatternCollector.process(te1);
    StarQuery sq1 = new StarQuery(spList1);
    QueryBindingSet bs1 = new QueryBindingSet();
    QueryBindingSet bs2 = new QueryBindingSet();
    Value v1 = vf.createURI("uri:hank");
    Value v2 = vf.createURI("uri:bob");
    bs1.addBinding("X", v1);
    bs2.addBinding("X", v1);
    bs2.addBinding("Y3", v2);
    StarQuery sq2 = StarQuery.getConstrainedStarQuery(sq1, bs1);
    StarQuery sq3 = StarQuery.getConstrainedStarQuery(sq1, bs2);
    Assert.assertTrue(sq2.commonVarHasValue());
    Assert.assertEquals(sq2.getCommonVarValue(), "uri:hank");
    Assert.assertTrue(sq3.commonVarHasValue());
    Assert.assertEquals(sq3.getCommonVarValue(), "uri:hank");
    TextColumn[] tc1 = sq1.getColumnCond();
    TextColumn[] tc2 = sq2.getColumnCond();
    TextColumn[] tc3 = sq3.getColumnCond();
    for (int i = 0; i < tc1.length; i++) {
        Assert.assertTrue(tc1[i].equals(tc2[i]));
        if (i != 2) {
            Assert.assertTrue(tc1[i].equals(tc3[i]));
        } else {
            Assert.assertEquals(tc3[i].getColumnFamily(), new Text("uri:cf3"));
            RyaType objType = RdfToRyaConversions.convertValue(v2);
            byte[][] b1 = null;
            b1 = RyaContext.getInstance().serializeType(objType);
            byte[] b2 = Bytes.concat("object".getBytes(), "\u0000".getBytes(), b1[0], b1[1]);
            Assert.assertEquals(tc3[i].getColumnQualifier(), new Text(b2));
            Assert.assertTrue(!tc3[i].isPrefix());
        }
    }
}

Example 4 with TextColumn

use of org.apache.rya.accumulo.documentIndex.TextColumn in project incubator-rya by apache.

the class StarQueryTest method testBasicFunctionality.

@Test
public void testBasicFunctionality() throws MalformedQueryException {
    String q1 = // 
    "" + // 
    "SELECT ?X ?Y1 ?Y2 " + // 
    "{" + // 
    "GRAPH <http://joe> { " + // 
    "?X <uri:cf1> ?Y1 ." + // 
    "?X <uri:cf2> ?Y2 ." + // 
    "?X <uri:cf3> ?Y3 ." + // 
    "}" + "}";
    SPARQLParser parser = new SPARQLParser();
    ParsedQuery pq1 = null;
    pq1 = parser.parseQuery(q1, null);
    TupleExpr te1 = pq1.getTupleExpr();
    System.out.println(te1);
    List<StatementPattern> spList1 = StatementPatternCollector.process(te1);
    Assert.assertTrue(StarQuery.isValidStarQuery(spList1));
    StarQuery sq1 = new StarQuery(spList1);
    Var v = sq1.getCommonVar();
    Assert.assertEquals("X", v.getName());
    Assert.assertEquals(null, v.getValue());
    Assert.assertEquals(v.getValue(), sq1.getCommonVarValue());
    Assert.assertTrue(!sq1.commonVarHasValue());
    Assert.assertEquals("X", sq1.getCommonVarName());
    Assert.assertTrue(sq1.isCommonVarURI());
    Assert.assertTrue(sq1.hasContext());
    Assert.assertEquals("http://joe", sq1.getContextURI());
    TextColumn[] cond = sq1.getColumnCond();
    for (int i = 0; i < cond.length; i++) {
        Assert.assertEquals(cond[i].getColumnFamily().toString(), "uri:cf" + (i + 1));
        Assert.assertEquals(cond[i].getColumnQualifier().toString(), "object");
    }
    Set<String> unCommonVars = Sets.newHashSet();
    unCommonVars.add("Y1");
    unCommonVars.add("Y2");
    unCommonVars.add("Y3");
    Assert.assertEquals(unCommonVars, sq1.getUnCommonVars());
    Map<String, Integer> varPos = sq1.getVarPos();
    Assert.assertEquals(0, varPos.get("Y1").intValue());
    Assert.assertEquals(1, varPos.get("Y2").intValue());
    Assert.assertEquals(2, varPos.get("Y3").intValue());
    QueryBindingSet bs1 = new QueryBindingSet();
    QueryBindingSet bs2 = new QueryBindingSet();
    Value v1 = vf.createURI("uri:hank");
    Value v2 = vf.createURI("uri:bob");
    bs1.addBinding("X", v1);
    bs2.addBinding("X", v1);
    bs2.addBinding("Y3", v2);
    Set<String> s1 = StarQuery.getCommonVars(sq1, bs1);
    Set<String> s2 = StarQuery.getCommonVars(sq1, bs2);
    Set<String> s3 = Sets.newHashSet();
    Set<String> s4 = Sets.newHashSet();
    s3.add("X");
    s4.add("X");
    s4.add("Y3");
    Assert.assertEquals(s1, s3);
    Assert.assertEquals(s2, s4);
}