Examples with Tree io.datatree.Tree used on opensource projects

Example 1 with Tree

use of io.datatree.Tree in project moleculer-java by moleculer-java.

the class Transporter method createRequestPacket.

// --- REQUEST PACKET ---
public Tree createRequestPacket(Context ctx) {
    FastBuildTree msg = new FastBuildTree(7);
    // Add basic properties
    msg.putUnsafe("ver", ServiceBroker.PROTOCOL_VERSION);
    msg.putUnsafe("sender", nodeID);
    msg.putUnsafe("id", ctx.id);
    msg.putUnsafe("action", ctx.name);
    // Add params and meta
    if (ctx.params != null) {
        msg.putUnsafe("params", ctx.params.asObject());
        Tree meta = ctx.params.getMeta(false);
        if (meta != null) {
            msg.putUnsafe("meta", meta.asObject());
        }
    }
    // Add opts
    if (ctx.opts != null) {
        msg.putUnsafe("timeout", ctx.opts.timeout);
    }
    // Return message
    return msg;
}

Example 2 with Tree

use of io.datatree.Tree in project moleculer-java by moleculer-java.

the class JCacheCacher method get.

// --- CACHE METHODS ---
@Override
public Promise get(String key) {
    try {
        int pos = partitionPosition(key, true);
        // Prefix is the name of the partition / region (eg.
        // "user" from the "user.name" cache key)
        String prefix = key.substring(0, pos);
        javax.cache.Cache<String, byte[]> partition;
        readLock.lock();
        try {
            partition = partitions.get(prefix);
        } finally {
            readLock.unlock();
        }
        if (partition != null) {
            byte[] bytes = partition.get(key.substring(pos + 1));
            if (bytes != null) {
                Tree root = serializer.read(bytes);
                Tree content = root.get(CONTENT);
                if (content != null) {
                    return Promise.resolve(content);
                }
                return Promise.resolve(root);
            }
        }
    } catch (Throwable cause) {
        logger.warn("Unable to get data from JCache!", cause);
    }
    return Promise.resolve();
}

Example 3 with Tree

use of io.datatree.Tree in project moleculer-java by moleculer-java.

the class OHCacher method valueToBytes.

protected byte[] valueToBytes(Tree tree) throws Exception {
    // Compress content
    Tree root = new CheckedTree(Collections.singletonMap(CONTENT, tree.asObject()));
    byte[] bytes = serializer.write(root);
    boolean compressed;
    if (compressAbove > 0 && bytes.length > compressAbove) {
        bytes = compress(bytes, compressionLevel);
        compressed = true;
    } else {
        compressed = false;
    }
    byte[] copy = new byte[bytes.length + 1];
    System.arraycopy(bytes, 0, copy, 1, bytes.length);
    if (compressed) {
        // Compressed -> first byte = 1
        copy[0] = (byte) 1;
    }
    return copy;
}

Example 4 with Tree

use of io.datatree.Tree in project moleculer-java by moleculer-java.

the class OHCacher method bytesToValue.

protected Tree bytesToValue(byte[] bytes) throws Exception {
    // Decompress content
    byte[] copy = new byte[bytes.length - 1];
    System.arraycopy(bytes, 1, copy, 0, bytes.length - 1);
    if (bytes[0] == 1) {
        // First byte == 1 -> compressed
        copy = decompress(copy);
    }
    Tree root = serializer.read(copy);
    Tree content = root.get(CONTENT);
    if (content != null) {
        return content;
    }
    return root;
}

Example 5 with Tree

use of io.datatree.Tree in project moleculer-java by moleculer-java.

the class DefaultEventbus method receiveEvent.

// --- RECEIVE EVENT FROM REMOTE SERVICE ---
@Override
public void receiveEvent(Tree message) {
    // Verify protocol version
    if (checkVersion) {
        String ver = message.get("ver", "unknown");
        if (!ServiceBroker.PROTOCOL_VERSION.equals(ver)) {
            logger.warn("Invalid protocol version (" + ver + ")!");
            return;
        }
    }
    // Get event property
    String name = message.get("event", (String) null);
    if (name == null || name.isEmpty()) {
        logger.warn("Missing \"event\" property!");
        return;
    }
    // Get data
    Tree payload = message.get("data");
    // Process events in Moleculer V2 style
    Tree groupArray = message.get("groups");
    Groups groups = null;
    if (groupArray != null) {
        int size = groupArray.size();
        if (size > 0) {
            String[] array = new String[groupArray.size()];
            int i = 0;
            for (Tree group : groupArray) {
                array[i++] = group.asString();
            }
            groups = Groups.of(array);
        }
    }
    // Emit or broadcast?
    if (message.get("broadcast", true)) {
        // Broadcast
        broadcast(name, payload, groups, true);
    } else {
        // Emit
        emit(name, payload, groups, true);
    }
}