Examples with ModelStorageModelReader org.apache.ignite.ml.inference.reader.ModelStorageModelReader used on opensource projects

Example 1 with ModelStorageModelReader

use of org.apache.ignite.ml.inference.reader.ModelStorageModelReader in project ignite by apache.

the class IgniteModelStorageUtil method saveModelDescriptor.

/**
 * Saves model descriptor into descriptor storage if a model with given name is not saved yet, otherwise throws
 * exception. To save model with the same name remove old model first.
 *
 * @param ignite Ignite instance.
 * @param name Model name.
 * @param mdlId Model identifier used to find model in model storage (only with {@link ModelStorageModelReader}).
 * @throws IllegalArgumentException If model with given name was already saved.
 */
private static void saveModelDescriptor(Ignite ignite, String name, UUID mdlId) {
    ModelDescriptorStorage descStorage = new ModelDescriptorStorageFactory().getModelDescriptorStorage(ignite);
    boolean saved = descStorage.putIfAbsent(name, new ModelDescriptor(mdlId.toString(), null, new ModelSignature(null, null, null), new ModelStorageModelReader(IGNITE_MDL_FOLDER + "/" + mdlId), new IgniteModelParser<>()));
    if (!saved)
        throw new IllegalArgumentException("Model descriptor with given name already exists [name=" + name + "]");
}

Example 2 with ModelStorageModelReader

use of org.apache.ignite.ml.inference.reader.ModelStorageModelReader in project ignite by apache.

the class ModelStorageExample method main.

/**
 * Run example.
 */
public static void main(String... args) throws IOException, ClassNotFoundException {
    try (Ignite ignite = Ignition.start("examples/config/example-ignite-ml.xml")) {
        System.out.println(">>> Ignite grid started.");
        ModelStorage storage = new ModelStorageFactory().getModelStorage(ignite);
        ModelDescriptorStorage descStorage = new ModelDescriptorStorageFactory().getModelDescriptorStorage(ignite);
        System.out.println("Saving model into model storage...");
        byte[] mdl = serialize((IgniteModel<byte[], byte[]>) i -> i);
        storage.mkdirs("/");
        storage.putFile("/my_model", mdl);
        System.out.println("Saving model descriptor into model descriptor storage...");
        ModelDescriptor desc = new ModelDescriptor("MyModel", "My Cool Model", new ModelSignature("", "", ""), new ModelStorageModelReader("/my_model"), new IgniteModelParser<>());
        descStorage.put("my_model", desc);
        System.out.println("List saved models...");
        for (IgniteBiTuple<String, ModelDescriptor> model : descStorage) System.out.println("-> {'" + model.getKey() + "' : " + model.getValue() + "}");
        System.out.println("Load saved model descriptor...");
        desc = descStorage.get("my_model");
        System.out.println("Build inference model...");
        SingleModelBuilder mdlBuilder = new SingleModelBuilder();
        try (Model<byte[], byte[]> infMdl = mdlBuilder.build(desc.getReader(), desc.getParser())) {
            System.out.println("Make inference...");
            for (int i = 0; i < 10; i++) {
                Integer res = deserialize(infMdl.predict(serialize(i)));
                System.out.println(i + " -> " + res);
            }
        }
    } finally {
        System.out.flush();
    }
}