Examples with RyaContext org.apache.rya.api.resolver.RyaContext used on opensource projects

Example 1 with RyaContext

use of org.apache.rya.api.resolver.RyaContext 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 RyaContext

use of org.apache.rya.api.resolver.RyaContext in project incubator-rya by apache.

the class HashedSpoWholeRowTriplePatternStrategy method defineRange.

@Override
public Map.Entry<TABLE_LAYOUT, ByteRange> defineRange(final RyaURI subject, final RyaURI predicate, final RyaType object, final RyaURI context, final RdfCloudTripleStoreConfiguration conf) throws IOException {
    try {
        // s_r(p)(ng)
        if (!handles(subject, predicate, object, context)) {
            return null;
        }
        final MessageDigest md = MessageDigest.getInstance("MD5");
        final RyaContext ryaContext = RyaContext.getInstance();
        final TABLE_LAYOUT table_layout = TABLE_LAYOUT.SPO;
        byte[] start;
        byte[] stop;
        if (predicate != null) {
            if (object != null) {
                if (object instanceof RyaRange) {
                    // sp_r(o)
                    // range = sp_r(o.s)->sp_r(o.e) (remove last byte to remove type info)
                    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[] subjBytes = subject.getData().getBytes(StandardCharsets.UTF_8);
                    final byte[] hashSubj = Hex.encodeHexString(md.digest(subjBytes)).getBytes(StandardCharsets.UTF_8);
                    final byte[] predBytes = predicate.getData().getBytes(StandardCharsets.UTF_8);
                    start = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES, predBytes, DELIM_BYTES, objStartBytes);
                    stop = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES, predBytes, DELIM_BYTES, objEndBytes, DELIM_BYTES, LAST_BYTES);
                } else {
                    // spo
                    // range = spo->spo (remove last byte to remove type info)
                    // TODO: There must be a better way than creating multiple byte[]
                    final byte[] subjBytes = subject.getData().getBytes(StandardCharsets.UTF_8);
                    final byte[] hashSubj = Hex.encodeHexString(md.digest(subjBytes)).getBytes(StandardCharsets.UTF_8);
                    final byte[] objBytes = ryaContext.serializeType(object)[0];
                    start = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES, predicate.getData().getBytes(StandardCharsets.UTF_8), DELIM_BYTES, objBytes, TYPE_DELIM_BYTES);
                    stop = Bytes.concat(start, LAST_BYTES);
                }
            } else if (predicate instanceof RyaRange) {
                // s_r(p)
                // range = s_r(p.s)->s_r(p.e)
                RyaRange rv = (RyaRange) predicate;
                rv = ryaContext.transformRange(rv);
                final byte[] subjBytes = subject.getData().getBytes(StandardCharsets.UTF_8);
                final byte[] hashSubj = Hex.encodeHexString(md.digest(subjBytes)).getBytes(StandardCharsets.UTF_8);
                final byte[] predStartBytes = rv.getStart().getData().getBytes(StandardCharsets.UTF_8);
                final byte[] predStopBytes = rv.getStop().getData().getBytes(StandardCharsets.UTF_8);
                start = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES, predStartBytes);
                stop = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES, predStopBytes, DELIM_BYTES, LAST_BYTES);
            } else {
                // sp
                // range = sp
                final byte[] subjBytes = subject.getData().getBytes(StandardCharsets.UTF_8);
                final byte[] hashSubj = Hex.encodeHexString(md.digest(subjBytes)).getBytes(StandardCharsets.UTF_8);
                start = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES, predicate.getData().getBytes(StandardCharsets.UTF_8), DELIM_BYTES);
                stop = Bytes.concat(start, LAST_BYTES);
            }
        } else {
            // s
            // range = s
            final byte[] subjBytes = subject.getData().getBytes(StandardCharsets.UTF_8);
            final byte[] hashSubj = Hex.encodeHexString(md.digest(subjBytes)).getBytes(StandardCharsets.UTF_8);
            start = Bytes.concat(hashSubj, DELIM_BYTES, subjBytes, DELIM_BYTES);
            stop = Bytes.concat(start, LAST_BYTES);
        }
        return new RdfCloudTripleStoreUtils.CustomEntry<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 3 with RyaContext

use of org.apache.rya.api.resolver.RyaContext in project incubator-rya by apache.

the class OspWholeRowTriplePatternStrategy method defineRange.

@Override
public Map.Entry<TABLE_LAYOUT, ByteRange> defineRange(final RyaURI subject, final RyaURI predicate, final RyaType object, final RyaURI context, final RdfCloudTripleStoreConfiguration conf) throws IOException {
    try {
        // r(o)
        if (!handles(subject, predicate, object, context)) {
            return null;
        }
        final RyaContext ryaContext = RyaContext.getInstance();
        final TABLE_LAYOUT table_layout = TABLE_LAYOUT.OSP;
        byte[] start, stop;
        if (subject != null) {
            if (subject instanceof RyaRange) {
                // o_r(s)
                RyaRange ru = (RyaRange) subject;
                ru = ryaContext.transformRange(ru);
                final byte[] subjStartBytes = ru.getStart().getData().getBytes(StandardCharsets.UTF_8);
                final byte[] subjEndBytes = ru.getStop().getData().getBytes(StandardCharsets.UTF_8);
                final byte[] objBytes = ryaContext.serializeType(object)[0];
                start = Bytes.concat(objBytes, DELIM_BYTES, subjStartBytes);
                stop = Bytes.concat(objBytes, DELIM_BYTES, subjEndBytes, DELIM_BYTES, LAST_BYTES);
            } else {
                // os
                final byte[] objBytes = ryaContext.serializeType(object)[0];
                start = Bytes.concat(objBytes, DELIM_BYTES, subject.getData().getBytes(StandardCharsets.UTF_8), DELIM_BYTES);
                stop = Bytes.concat(start, LAST_BYTES);
            }
        } else {
            if (object instanceof RyaRange) {
                // r(o)
                RyaRange rv = (RyaRange) object;
                rv = ryaContext.transformRange(rv);
                start = ryaContext.serializeType(rv.getStart())[0];
                stop = Bytes.concat(ryaContext.serializeType(rv.getStop())[0], DELIM_BYTES, LAST_BYTES);
            } else {
                // o
                start = Bytes.concat(ryaContext.serializeType(object)[0], DELIM_BYTES);
                stop = Bytes.concat(start, LAST_BYTES);
            }
        }
        return new RdfCloudTripleStoreUtils.CustomEntry<TABLE_LAYOUT, ByteRange>(table_layout, new ByteRange(start, stop));
    } catch (final RyaTypeResolverException e) {
        throw new IOException(e);
    }
}

Example 4 with RyaContext

use of org.apache.rya.api.resolver.RyaContext 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 5 with RyaContext

use of org.apache.rya.api.resolver.RyaContext in project incubator-rya by apache.

the class PoWholeRowTriplePatternStrategy 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 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);
                start = Bytes.concat(predBytes, DELIM_BYTES, objStartBytes);
                stop = Bytes.concat(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[] objBytes = ryaContext.serializeType(object)[0];
                    start = Bytes.concat(predBytes, DELIM_BYTES, objBytes, DELIM_BYTES, subjStartBytes);
                    stop = Bytes.concat(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[] objBytes = ryaContext.serializeType(object)[0];
                    start = Bytes.concat(predicate.getData().getBytes(StandardCharsets.UTF_8), DELIM_BYTES, objBytes, DELIM_BYTES);
                    stop = Bytes.concat(start, LAST_BYTES);
                }
            }
        } else if (predicate instanceof RyaRange) {
            // r(p)
            RyaRange rv = (RyaRange) predicate;
            rv = ryaContext.transformRange(rv);
            start = rv.getStart().getData().getBytes(StandardCharsets.UTF_8);
            stop = Bytes.concat(rv.getStop().getData().getBytes(StandardCharsets.UTF_8), DELIM_BYTES, LAST_BYTES);
        } else {
            // p
            start = Bytes.concat(predicate.getData().getBytes(StandardCharsets.UTF_8), 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);
    }
}