Examples with Link com.cinchapi.concourse.Link used on opensource projects

Example 1 with Link

use of com.cinchapi.concourse.Link in project concourse by cinchapi.

the class Stores method serialSelect.

/**
 * Select the values stored for {@code key} in {@code record} at
 * {@code timestamp} from the {@code store}.
 * <p>
 * If the {@code key} is primitive, the store retrieval is usually a simple
 * {@link Store#select(long) select}. However, if the key is a navigation
 * key, this method will process it via
 * {@link Operations#traverseKeyRecordOptionalAtomic(String, long, long, AtomicOperation)}
 * if the {@code store} is an {@link AtomicOperation} or
 * {@link AtomicSupport supports} starting one.
 * </p>
 *
 * @param store
 * @param key
 * @param record
 * @param timestamp
 *
 * @return the values stored for {@code key} in {@code record} at
 *         {@code timestamp} according to the {@code store}
 */
protected static Set<TObject> serialSelect(Store store, String key, long record, long timestamp) {
    Function evalFunc;
    if (Keys.isNavigationKey(key)) {
        if (store instanceof AtomicOperation || timestamp != Time.NONE) {
            return Operations.traverseKeyRecordOptionalAtomic(key, record, timestamp, store);
        } else if (store instanceof AtomicSupport) {
            AtomicReference<Set<TObject>> value = new AtomicReference<>(ImmutableSet.of());
            AtomicOperations.executeWithRetry((AtomicSupport) store, (atomic) -> {
                value.set(Operations.traverseKeyRecordOptionalAtomic(key, record, timestamp, atomic));
            });
            return value.get();
        } else {
            throw new UnsupportedOperationException("Cannot fetch the current values of a navigation key using a Store that does not support atomic operations");
        }
    } else if ((evalFunc = Keys.tryParseFunction(key)) != null) {
        String method = Calculations.alias(evalFunc.operation()) + "KeyRecordAtomic";
        Number value = Reflection.callStatic(Operations.class, method, evalFunc.key(), record, timestamp, store);
        return value != null ? ImmutableSet.of(Convert.javaToThrift(value)) : ImmutableSet.of();
    } else if (key.equals(Constants.JSON_RESERVED_IDENTIFIER_NAME)) {
        return ImmutableSet.of(Convert.javaToThrift(record));
    } else {
        Source source;
        if (Command.isSet()) {
            Strategy strategy = new Strategy(Command.current(), store);
            source = strategy.source(key, record);
        } else {
            source = Source.FIELD;
        }
        Set<TObject> values;
        if (source == Source.RECORD) {
            // @formatter:off
            Map<String, Set<TObject>> data = timestamp == Time.NONE ? store.select(record) : store.select(record, timestamp);
            values = data.getOrDefault(key, ImmutableSet.of());
        // @formatter:on
        } else if (source == Source.FIELD) {
            // @formatter:off
            values = timestamp == Time.NONE ? store.select(key, record) : store.select(key, record, timestamp);
        // @formatter:on
        } else {
            // source == Source.INDEX
            // @formatter:off
            values = timestamp == Time.NONE ? store.gather(key, record) : store.gather(key, record, timestamp);
        // @formatter:on
        }
        return values;
    }
}

Example 2 with Link

use of com.cinchapi.concourse.Link in project concourse by cinchapi.

the class Stores method find.

/**
 * Find the records that contain values that are stored for {@code key} and
 * satisfy {@code operator} in relation to the specified {@code values} at
 * {@code timestamp}.
 * <p>
 * If the {@code key} is primitive, the store lookup is usually a simple
 * {@link Store#find(String, Operator, TObject[]) find}. However, if the key
 * is a navigation key, this method will process it by
 * {@link #browse(Store, String) browsing} the destination values and
 * checking the operator validity of each if and only if the {@code store}
 * is an {@link AtomicOperation} or {@link AtomicSupport supports} starting
 * one.
 * </p>
 *
 * @param store
 * @param timestamp
 * @param key
 * @param operator
 * @param values
 * @return the records that satisfy the query
 */
public static Set<Long> find(Store store, long timestamp, String key, Operator operator, TObject... values) {
    for (int i = 0; i < values.length; ++i) {
        TObject value = values[i];
        if (value.getType() == Type.FUNCTION) {
            Function function = (Function) Convert.thriftToJava(value);
            TemporalFunction func = (TemporalFunction) function;
            String method = Calculations.alias(function.operation());
            ArrayBuilder<Object> args = ArrayBuilder.builder();
            method += "Key";
            args.add(function.key());
            if (function instanceof KeyRecordsFunction || function instanceof KeyConditionFunction) {
                method += "Records";
                Collection<Long> records = function instanceof KeyRecordsFunction ? ((KeyRecordsFunction) function).source() : Finder.instance().visit(((KeyConditionFunction) function).source(), store);
                args.add(records);
            } else if (!(function instanceof IndexFunction)) {
                throw new IllegalStateException("Invalid function value");
            }
            method += "Atomic";
            args.add(func.timestamp());
            args.add(store);
            values[i] = Convert.javaToThrift(Reflection.callStatic(Operations.class, method, args.build()));
        }
    }
    if (Keys.isNavigationKey(key)) {
        Map<TObject, Set<Long>> index = timestamp == Time.NONE ? browse(store, key) : browse(store, key, timestamp);
        Set<Long> records = index.entrySet().stream().filter(e -> e.getKey().is(operator, values)).map(e -> e.getValue()).flatMap(Set::stream).collect(Collectors.toCollection(LinkedHashSet::new));
        return records;
    } else if (Keys.isFunctionKey(key)) {
        Set<Long> records = Sets.newLinkedHashSet();
        for (long record : store.getAllRecords()) {
            Set<TObject> aggregate = select(store, key, record, timestamp);
            for (TObject tobject : aggregate) {
                if (tobject.is(operator, values)) {
                    records.add(record);
                    break;
                }
            }
        }
        return records;
    } else {
        return timestamp == Time.NONE ? store.find(key, operator, values) : store.find(timestamp, key, operator, values);
    }
}

Example 3 with Link

use of com.cinchapi.concourse.Link in project concourse by cinchapi.

the class Operations method browseNavigationKeyOptionalAtomic.

/**
 * Perform "browse" functionality on a navigation key.
 *
 * @param key
 * @param timestamp
 * @param store
 * @return a mapping from each possible destination value for a given
 *         navigation {@code key} to the records where the navigation could
 *         begin to retrieve the value by selecting the navigation
 *         {@code key}
 */
public static Map<TObject, Set<Long>> browseNavigationKeyOptionalAtomic(String key, long timestamp, Store store) {
    String[] toks = key.split("\\.");
    if (toks.length == 1) {
        return timestamp == Time.NONE ? store.browse(key) : store.browse(key, timestamp);
    } else {
        String start = toks[0];
        StringBuilder $key = new StringBuilder();
        for (int i = 1; i < toks.length - 1; ++i) {
            $key.append(toks[i]).append('.');
        }
        $key.append(toks[toks.length - 1]);
        Map<TObject, Set<Long>> root = timestamp == Time.NONE ? store.browse(start) : store.browse(start, timestamp);
        Map<TObject, Set<Long>> index = Maps.newLinkedHashMap();
        root.entrySet().stream().filter(e -> e.getKey().getType() == Type.LINK).forEach(entry -> {
            Link link = (Link) Convert.thriftToJava(entry.getKey());
            Set<Long> nodes = entry.getValue();
            for (long node : nodes) {
                Set<TObject> values = traverseKeyRecordOptionalAtomic($key.toString(), link.longValue(), timestamp, store);
                for (TObject value : values) {
                    index.computeIfAbsent(value, ignore -> Sets.newLinkedHashSet()).add(node);
                }
            }
        });
        return index;
    }
}

Example 4 with Link

use of com.cinchapi.concourse.Link in project concourse by cinchapi.

the class ConvertTest method testConvertStringLinkToJava.

@Test
public void testConvertStringLinkToJava() {
    long record = Random.getLong();
    String strLink = "@" + record;
    Link link = (Link) Convert.stringToJava(strLink);
    Assert.assertEquals(record, link.longValue());
}

Example 5 with Link

use of com.cinchapi.concourse.Link in project concourse by cinchapi.

the class Convert method javaToThrift.

/**
 * Return the Thrift Object that represents {@code object}.
 *
 * @param object
 * @return the TObject
 */
public static TObject javaToThrift(Object object) {
    if (object == null) {
        return TObject.NULL;
    } else {
        ByteBuffer bytes;
        Type type = null;
        if (object instanceof Boolean) {
            bytes = ByteBuffer.allocate(1);
            bytes.put((boolean) object ? (byte) 1 : (byte) 0);
            type = Type.BOOLEAN;
        } else if (object instanceof Double) {
            bytes = ByteBuffer.allocate(8);
            bytes.putDouble((double) object);
            type = Type.DOUBLE;
        } else if (object instanceof Float) {
            bytes = ByteBuffer.allocate(4);
            bytes.putFloat((float) object);
            type = Type.FLOAT;
        } else if (object instanceof Link) {
            bytes = ByteBuffer.allocate(8);
            bytes.putLong(((Link) object).longValue());
            type = Type.LINK;
        } else if (object instanceof Long) {
            bytes = ByteBuffer.allocate(8);
            bytes.putLong((long) object);
            type = Type.LONG;
        } else if (object instanceof Integer) {
            bytes = ByteBuffer.allocate(4);
            bytes.putInt((int) object);
            type = Type.INTEGER;
        } else if (object instanceof BigDecimal) {
            bytes = ByteBuffer.allocate(8);
            bytes.putDouble((double) ((BigDecimal) object).doubleValue());
            type = Type.DOUBLE;
        } else if (object instanceof Tag) {
            bytes = ByteBuffer.wrap(object.toString().getBytes(StandardCharsets.UTF_8));
            type = Type.TAG;
        } else if (object instanceof Timestamp) {
            try {
                bytes = ByteBuffer.allocate(8);
                bytes.putLong(((Timestamp) object).getMicros());
                type = Type.TIMESTAMP;
            } catch (IllegalStateException e) {
                throw new UnsupportedOperationException("Cannot convert string based Timestamp to a TObject");
            }
        } else if (object instanceof Function) {
            type = Type.FUNCTION;
            Function function = (Function) object;
            byte[] nameBytes = function.operation().getBytes(StandardCharsets.UTF_8);
            byte[] keyBytes = function.key().getBytes(StandardCharsets.UTF_8);
            if (function instanceof IndexFunction) {
                /*
                     * Schema:
                     * | type (1) | timestamp(8) | nameLength (4) | name
                     * (nameLength) | key |
                     */
                bytes = ByteBuffer.allocate(1 + 8 + 4 + nameBytes.length + keyBytes.length);
                bytes.put((byte) FunctionType.INDEX.ordinal());
                bytes.putLong(((TemporalFunction) function).timestamp());
                bytes.putInt(nameBytes.length);
                bytes.put(nameBytes);
                bytes.put(keyBytes);
            } else if (function instanceof KeyRecordsFunction) {
                /*
                     * Schema:
                     * | type (1) | timestamp(8) | nameLength (4) | name
                     * (nameLength) | keyLength (4) | key (keyLength) | records
                     * (8 each) |
                     */
                KeyRecordsFunction func = (KeyRecordsFunction) function;
                bytes = ByteBuffer.allocate(1 + 8 + 4 + nameBytes.length + 4 + keyBytes.length + 8 * func.source().size());
                bytes.put((byte) FunctionType.KEY_RECORDS.ordinal());
                bytes.putLong(((TemporalFunction) function).timestamp());
                bytes.putInt(nameBytes.length);
                bytes.put(nameBytes);
                bytes.putInt(keyBytes.length);
                bytes.put(keyBytes);
                for (long record : func.source()) {
                    bytes.putLong(record);
                }
            } else if (function instanceof KeyConditionFunction) {
                /*
                     * Schema:
                     * | type (1) | timestamp(8) | nameLength (4) | name
                     * (nameLength) | keyLength (4) | key (keyLength) |
                     * condition |
                     */
                KeyConditionFunction func = (KeyConditionFunction) function;
                String condition = ConcourseCompiler.get().tokenize(func.source()).stream().map(Symbol::toString).collect(Collectors.joining(" "));
                bytes = ByteBuffer.allocate(1 + 9 + 4 + nameBytes.length + 4 + keyBytes.length + condition.length());
                bytes.put((byte) FunctionType.KEY_CONDITION.ordinal());
                bytes.putLong(((TemporalFunction) function).timestamp());
                bytes.putInt(nameBytes.length);
                bytes.put(nameBytes);
                bytes.putInt(keyBytes.length);
                bytes.put(keyBytes);
                bytes.put(condition.getBytes(StandardCharsets.UTF_8));
            } else {
                throw new UnsupportedOperationException("Cannot convert the following function to a TObject: " + function);
            }
        } else {
            bytes = ByteBuffer.wrap(object.toString().getBytes(StandardCharsets.UTF_8));
            type = Type.STRING;
        }
        bytes.rewind();
        return new TObject(bytes, type).setJavaFormat(object);
    }
}