Java Code Examples for com.esotericsoftware.kryo.Kryo#DefaultInstantiatorStrategy

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);

		KryoUtils.applyRegistrations(this.kryo, kryoRegistrations.values());
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);

		KryoUtils.applyRegistrations(this.kryo, kryoRegistrations.values());
	}
}
 

/**
 * Returns the Chill Kryo Serializer which is implicitly added to the classpath via flink-runtime.
 * Falls back to the default Kryo serializer if it can't be found.
 * @return The Kryo serializer instance.
 */
private Kryo getKryoInstance() {

	try {
		// check if ScalaKryoInstantiator is in class path (coming from Twitter's Chill library).
		// This will be true if Flink's Scala API is used.
		Class<?> chillInstantiatorClazz =
				Class.forName("org.apache.flink.runtime.types.FlinkScalaKryoInstantiator");
		Object chillInstantiator = chillInstantiatorClazz.newInstance();

		// obtain a Kryo instance through Twitter Chill
		Method m = chillInstantiatorClazz.getMethod("newKryo");

		return (Kryo) m.invoke(chillInstantiator);
	} catch (ClassNotFoundException | InstantiationException | NoSuchMethodException |
		IllegalAccessException | InvocationTargetException e) {

		LOG.warn("Falling back to default Kryo serializer because Chill serializer couldn't be found.", e);

		Kryo.DefaultInstantiatorStrategy initStrategy = new Kryo.DefaultInstantiatorStrategy();
		initStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());

		Kryo kryo = new Kryo();
		kryo.setInstantiatorStrategy(initStrategy);

		return kryo;
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(type);
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(typeClass);
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(type);
	}
}
 

public Kryo createKryo() {
    Kryo.DefaultInstantiatorStrategy initStrategy = new Kryo.DefaultInstantiatorStrategy();

    // use Objenesis to create classes without calling the constructor (Flink's technique)
    //initStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());

    Kryo kryo = new Kryo();
    kryo.setInstantiatorStrategy(initStrategy);
    return kryo;
}
 

@Test
public void treeNode() {
    final Result<DecisionTreeRuleSet> result = (new CommisionRuleSetSupplier()).get();
    EhSupport.ensure(result.isSuccess(), "Could not create decision tree");
    final DecisionTreeRuleSet ruleSet = result.getData();

    final TreeNode node = DecisionTreeFactory.constructDecisionTree(ruleSet, DecisionTreeType.SINGLE);

    final Kryo kryo = new Kryo();
    // no default no-arg constructors
    kryo.setInstantiatorStrategy(new StdInstantiatorStrategy());

    final InstantiatorStrategy defaultInstantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
    kryo.getRegistration(ArrayList.class)
            .setInstantiator(defaultInstantiatorStrategy.newInstantiatorOf(ArrayList.class));
    kryo.getRegistration(HashSet.class)
            .setInstantiator(defaultInstantiatorStrategy.newInstantiatorOf(HashSet.class));
    UnmodifiableCollectionsSerializer.registerSerializers(kryo);

    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    final Output output = new Output(out);
    kryo.writeObject(output, node);
    output.flush();
    output.close();

    final ByteArrayInputStream inputStream = new ByteArrayInputStream(out.toByteArray());
    final Input kryoInput = new Input(inputStream);
    final TreeNode tree = kryo.readObject(kryoInput, BaseTreeNode.class);

    final SingleDecisionTreeFactoryTest test = new SingleDecisionTreeFactoryTest();
    test.checkTreeNode(tree, ruleSet);

    assertEquals(node, tree);
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(type);
	}
}
 

/**
 * Returns the Chill Kryo Serializer which is implicitly added to the classpath via flink-runtime.
 * Falls back to the default Kryo serializer if it can't be found.
 * @return The Kryo serializer instance.
 */
private Kryo getKryoInstance() {

	try {
		// check if ScalaKryoInstantiator is in class path (coming from Twitter's Chill library).
		// This will be true if Flink's Scala API is used.
		Class<?> chillInstantiatorClazz =
				Class.forName("org.apache.flink.runtime.types.FlinkScalaKryoInstantiator");
		Object chillInstantiator = chillInstantiatorClazz.newInstance();

		// obtain a Kryo instance through Twitter Chill
		Method m = chillInstantiatorClazz.getMethod("newKryo");

		return (Kryo) m.invoke(chillInstantiator);
	} catch (ClassNotFoundException | InstantiationException | NoSuchMethodException |
		IllegalAccessException | InvocationTargetException e) {

		LOG.warn("Falling back to default Kryo serializer because Chill serializer couldn't be found.", e);

		Kryo.DefaultInstantiatorStrategy initStrategy = new Kryo.DefaultInstantiatorStrategy();
		initStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());

		Kryo kryo = new Kryo();
		kryo.setInstantiatorStrategy(initStrategy);

		return kryo;
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(type);
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(typeClass);
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(type);
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);

		KryoUtils.applyRegistrations(this.kryo, kryoRegistrations.values());
	}
}
 

/**
 * Returns the Chill Kryo Serializer which is implicitly added to the classpath via flink-runtime.
 * Falls back to the default Kryo serializer if it can't be found.
 * @return The Kryo serializer instance.
 */
private Kryo getKryoInstance() {

	try {
		// check if ScalaKryoInstantiator is in class path (coming from Twitter's Chill library).
		// This will be true if Flink's Scala API is used.
		Class<?> chillInstantiatorClazz =
				Class.forName("org.apache.flink.runtime.types.FlinkScalaKryoInstantiator");
		Object chillInstantiator = chillInstantiatorClazz.newInstance();

		// obtain a Kryo instance through Twitter Chill
		Method m = chillInstantiatorClazz.getMethod("newKryo");

		return (Kryo) m.invoke(chillInstantiator);
	} catch (ClassNotFoundException | InstantiationException | NoSuchMethodException |
		IllegalAccessException | InvocationTargetException e) {

		LOG.warn("Falling back to default Kryo serializer because Chill serializer couldn't be found.", e);

		Kryo.DefaultInstantiatorStrategy initStrategy = new Kryo.DefaultInstantiatorStrategy();
		initStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());

		Kryo kryo = new Kryo();
		kryo.setInstantiatorStrategy(initStrategy);

		return kryo;
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(type);
	}
}
 

private void checkKryoInitialized() {
	if (this.kryo == null) {
		this.kryo = new Kryo();

		Kryo.DefaultInstantiatorStrategy instantiatorStrategy = new Kryo.DefaultInstantiatorStrategy();
		instantiatorStrategy.setFallbackInstantiatorStrategy(new StdInstantiatorStrategy());
		kryo.setInstantiatorStrategy(instantiatorStrategy);

		this.kryo.setAsmEnabled(true);
		this.kryo.register(typeClass);
	}
}
 

public OperationInstantiator() {
	fallback = new Kryo.DefaultInstantiatorStrategy();
}