Examples with ByteRange org.apache.rya.api.query.strategy.ByteRange used on opensource projects

Example 11 with ByteRange

use of org.apache.rya.api.query.strategy.ByteRange in project incubator-rya by apache.

the class HashedPoWholeRowTriplePatternStrategyTest method testPoRange.

public void testPoRange() throws Exception {
    Map<RdfCloudTripleStoreConstants.TABLE_LAYOUT, TripleRow> serialize = ryaTripleContext.serializeTriple(new RyaStatement(uri, uri, uri, null));
    TripleRow tripleRow = serialize.get(RdfCloudTripleStoreConstants.TABLE_LAYOUT.PO);
    Map.Entry<RdfCloudTripleStoreConstants.TABLE_LAYOUT, ByteRange> entry = strategy.defineRange(null, uri, rangeURI, null, null);
    assertContains(entry.getValue(), tripleRow.getRow());
    entry = strategy.defineRange(null, uri, rangeURI2, null, null);
    assertContainsFalse(entry.getValue(), tripleRow.getRow());
}

Example 12 with ByteRange

use of org.apache.rya.api.query.strategy.ByteRange in project incubator-rya by apache.

the class HashedPoWholeRowTriplePatternStrategyTest method testPosRange.

public void testPosRange() throws Exception {
    Map<RdfCloudTripleStoreConstants.TABLE_LAYOUT, TripleRow> serialize = ryaTripleContext.serializeTriple(new RyaStatement(uri, uri, uri, null));
    TripleRow tripleRow = serialize.get(RdfCloudTripleStoreConstants.TABLE_LAYOUT.PO);
    Map.Entry<RdfCloudTripleStoreConstants.TABLE_LAYOUT, ByteRange> entry = strategy.defineRange(rangeURI, uri, uri, null, null);
    assertContains(entry.getValue(), tripleRow.getRow());
    entry = strategy.defineRange(rangeURI2, uri, uri, null, null);
    assertContainsFalse(entry.getValue(), tripleRow.getRow());
}

Example 13 with ByteRange

use of org.apache.rya.api.query.strategy.ByteRange in project incubator-rya by apache.

the class HashedPoWholeRowTriplePatternStrategyTest method testPoRangeCustomType.

public void testPoRangeCustomType() throws Exception {
    Map<RdfCloudTripleStoreConstants.TABLE_LAYOUT, TripleRow> serialize = ryaTripleContext.serializeTriple(new RyaStatement(uri, uri, customType1, null));
    TripleRow tripleRow = serialize.get(RdfCloudTripleStoreConstants.TABLE_LAYOUT.PO);
    Map.Entry<RdfCloudTripleStoreConstants.TABLE_LAYOUT, ByteRange> entry = strategy.defineRange(null, uri, customTypeRange1, null, null);
    assertContains(entry.getValue(), tripleRow.getRow());
    entry = strategy.defineRange(null, uri, customTypeRange2, null, null);
    assertContainsFalse(entry.getValue(), tripleRow.getRow());
}

Example 14 with ByteRange

use of org.apache.rya.api.query.strategy.ByteRange in project incubator-rya by apache.

the class HashedPoWholeRowTriplePatternStrategy method defineRange.

@Override
public Map.Entry<RdfCloudTripleStoreConstants.TABLE_LAYOUT, ByteRange> defineRange(final RyaURI subject, final RyaURI predicate, final RyaType object, final RyaURI context, final RdfCloudTripleStoreConfiguration conf) throws IOException {
    try {
        // r(p)(ng)
        if (!handles(subject, predicate, object, context)) {
            return null;
        }
        final RyaContext ryaContext = RyaContext.getInstance();
        final MessageDigest md = MessageDigest.getInstance("MD5");
        final RdfCloudTripleStoreConstants.TABLE_LAYOUT table_layout = RdfCloudTripleStoreConstants.TABLE_LAYOUT.PO;
        byte[] start, stop;
        if (object != null) {
            if (object instanceof RyaRange) {
                // p_r(o)
                RyaRange rv = (RyaRange) object;
                rv = ryaContext.transformRange(rv);
                final byte[] objStartBytes = ryaContext.serializeType(rv.getStart())[0];
                final byte[] objEndBytes = ryaContext.serializeType(rv.getStop())[0];
                final byte[] predBytes = predicate.getData().getBytes(StandardCharsets.UTF_8);
                final byte[] predHash = Hex.encodeHexString(md.digest(predBytes)).getBytes(StandardCharsets.UTF_8);
                start = Bytes.concat(predHash, DELIM_BYTES, predBytes, DELIM_BYTES, objStartBytes);
                stop = Bytes.concat(predHash, DELIM_BYTES, predBytes, DELIM_BYTES, objEndBytes, DELIM_BYTES, LAST_BYTES);
            } else {
                if (subject != null && subject instanceof RyaRange) {
                    // po_r(s)
                    RyaRange ru = (RyaRange) subject;
                    ru = ryaContext.transformRange(ru);
                    final byte[] subjStartBytes = ru.getStart().getData().getBytes(StandardCharsets.UTF_8);
                    final byte[] subjStopBytes = ru.getStop().getData().getBytes(StandardCharsets.UTF_8);
                    final byte[] predBytes = predicate.getData().getBytes(StandardCharsets.UTF_8);
                    final byte[] predHash = Hex.encodeHexString(md.digest(predBytes)).getBytes(StandardCharsets.UTF_8);
                    final byte[] objBytes = ryaContext.serializeType(object)[0];
                    start = Bytes.concat(predHash, DELIM_BYTES, predBytes, DELIM_BYTES, objBytes, DELIM_BYTES, subjStartBytes);
                    stop = Bytes.concat(predHash, DELIM_BYTES, predBytes, DELIM_BYTES, objBytes, DELIM_BYTES, subjStopBytes, TYPE_DELIM_BYTES, LAST_BYTES);
                } else {
                    // po
                    // TODO: There must be a better way than creating multiple byte[]
                    final byte[] predBytes = predicate.getData().getBytes(StandardCharsets.UTF_8);
                    final byte[] predHash = Hex.encodeHexString(md.digest(predBytes)).getBytes(StandardCharsets.UTF_8);
                    final byte[] objBytes = ryaContext.serializeType(object)[0];
                    start = Bytes.concat(predHash, DELIM_BYTES, predBytes, DELIM_BYTES, objBytes, DELIM_BYTES);
                    stop = Bytes.concat(start, LAST_BYTES);
                }
            }
        } else {
            // p
            final byte[] predBytes = predicate.getData().getBytes(StandardCharsets.UTF_8);
            final byte[] predHash = Hex.encodeHexString(md.digest(predBytes)).getBytes(StandardCharsets.UTF_8);
            start = Bytes.concat(predHash, DELIM_BYTES, predBytes, DELIM_BYTES);
            stop = Bytes.concat(start, LAST_BYTES);
        }
        return new RdfCloudTripleStoreUtils.CustomEntry<RdfCloudTripleStoreConstants.TABLE_LAYOUT, ByteRange>(table_layout, new ByteRange(start, stop));
    } catch (final RyaTypeResolverException e) {
        throw new IOException(e);
    } catch (final NoSuchAlgorithmException e) {
        throw new IOException(e);
    }
}

Example 15 with ByteRange

use of org.apache.rya.api.query.strategy.ByteRange in project incubator-rya by apache.

the class NullRowTriplePatternStrategy method defineRange.

@Override
public Map.Entry<TABLE_LAYOUT, ByteRange> defineRange(RyaURI subject, RyaURI predicate, RyaType object, RyaURI context, RdfCloudTripleStoreConfiguration conf) throws IOException {
    // Scan from the beginning of the Accumulo Table
    byte[] start = new byte[] {/* empty array */
    };
    // Scan to the end, up through things beginning with 0xff.
    byte[] stop = LAST_BYTES;
    return new RdfCloudTripleStoreUtils.CustomEntry<>(TABLE_LAYOUT.SPO, new ByteRange(start, stop));
}