| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package backtype.storm.serialization; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| import java.math.BigInteger; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.TreeMap; |
| import java.util.logging.Logger; |
| |
| import com.esotericsoftware.kryo.Kryo; |
| import com.esotericsoftware.kryo.Serializer; |
| import com.esotericsoftware.kryo.serializers.DefaultSerializers.BigIntegerSerializer; |
| |
| import backtype.storm.Config; |
| import backtype.storm.serialization.types.ArrayListSerializer; |
| import backtype.storm.serialization.types.HashMapSerializer; |
| import backtype.storm.serialization.types.HashSetSerializer; |
| import backtype.storm.tuple.Values; |
| import backtype.storm.utils.ListDelegate; |
| import backtype.storm.utils.Utils; |
| |
| public final class SerializationFactory { |
| public static final Logger LOG = Logger.getLogger(SerializationFactory.class.getName()); |
| |
| private SerializationFactory() { |
| } |
| |
| /** |
| * Get kryo based on conf |
| * @param conf the config |
| * @return Kryo |
| */ |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| public static Kryo getKryo(Map conf) { |
| IKryoFactory kryoFactory = |
| (IKryoFactory) Utils.newInstance((String) conf.get(Config.TOPOLOGY_KRYO_FACTORY)); |
| Kryo k = kryoFactory.getKryo(conf); |
| k.register(byte[].class); |
| k.register(ListDelegate.class); |
| k.register(ArrayList.class, new ArrayListSerializer()); |
| k.register(HashMap.class, new HashMapSerializer()); |
| k.register(HashSet.class, new HashSetSerializer()); |
| k.register(BigInteger.class, new BigIntegerSerializer()); |
| // k.register(TransactionAttempt.class); |
| k.register(Values.class); |
| // k.register(backtype.storm.metric.api.IMetricsConsumer.DataPoint.class); |
| // k.register(backtype.storm.metric.api.IMetricsConsumer.TaskInfo.class); |
| /* |
| try { |
| JavaBridge.registerPrimitives(k); |
| JavaBridge.registerCollections(k); |
| } catch(Exception e) { |
| throw new RuntimeException(e); |
| } |
| */ |
| |
| Map<String, String> registrations = normalizeKryoRegister(conf); |
| |
| kryoFactory.preRegister(k, conf); |
| |
| boolean skipMissing = (Boolean) conf.get(Config.TOPOLOGY_SKIP_MISSING_KRYO_REGISTRATIONS); |
| for (String klassName : registrations.keySet()) { |
| String serializerClassName = registrations.get(klassName); |
| try { |
| Class klass = Class.forName(klassName); |
| Class serializerClass = null; |
| if (serializerClassName != null) { |
| serializerClass = Class.forName(serializerClassName); |
| } |
| LOG.info("Doing kryo.register for class " + klass); |
| if (serializerClass == null) { |
| k.register(klass); |
| } else { |
| k.register(klass, resolveSerializerInstance(k, klass, serializerClass)); |
| } |
| |
| } catch (ClassNotFoundException e) { |
| if (skipMissing) { |
| LOG.info("Could not find serialization or class for " |
| + serializerClassName + ". Skipping registration..."); |
| } else { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| kryoFactory.postRegister(k, conf); |
| |
| if (conf.get(Config.TOPOLOGY_KRYO_DECORATORS) != null) { |
| for (String klassName : (List<String>) conf.get(Config.TOPOLOGY_KRYO_DECORATORS)) { |
| try { |
| Class klass = Class.forName(klassName); |
| IKryoDecorator decorator = (IKryoDecorator) klass.newInstance(); |
| decorator.decorate(k); |
| } catch (ClassNotFoundException e) { |
| if (skipMissing) { |
| LOG.info("Could not find kryo decorator named " |
| + klassName + ". Skipping registration..."); |
| } else { |
| throw new RuntimeException(e); |
| } |
| } catch (InstantiationException e) { |
| throw new RuntimeException(e); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| kryoFactory.postDecorate(k, conf); |
| |
| return k; |
| } |
| |
| @SuppressWarnings("rawtypes") |
| private static Serializer resolveSerializerInstance( |
| Kryo k, Class superClass, Class<? extends Serializer> serializerClass) { |
| Constructor<? extends Serializer> ctor; |
| |
| try { |
| ctor = serializerClass.getConstructor(Kryo.class, Class.class); |
| return ctor.newInstance(k, superClass); |
| } catch (NoSuchMethodException | InvocationTargetException |
| | InstantiationException | IllegalAccessException ex) { |
| // do nothing |
| } |
| |
| try { |
| ctor = serializerClass.getConstructor(Kryo.class); |
| return ctor.newInstance(k); |
| } catch (NoSuchMethodException | InvocationTargetException |
| | InstantiationException | IllegalAccessException ex) { |
| // do nothing |
| } |
| |
| try { |
| ctor = serializerClass.getConstructor(Class.class); |
| return ctor.newInstance(k); |
| } catch (NoSuchMethodException | InvocationTargetException |
| | InstantiationException | IllegalAccessException ex) { |
| // do nothing |
| } |
| |
| try { |
| return serializerClass.newInstance(); |
| } catch (InstantiationException | IllegalAccessException ex) { |
| // do nothing |
| } |
| |
| throw new IllegalArgumentException( |
| String.format("Unable to create serializer \"%s\" for class: %s", |
| serializerClass.getName(), superClass.getName())); |
| } |
| |
| @SuppressWarnings({"rawtypes", "unchecked"}) |
| private static Map<String, String> normalizeKryoRegister(Map conf) { |
| // TODO: de-duplicate this logic with the code in nimbus |
| Object res = conf.get(Config.TOPOLOGY_KRYO_REGISTER); |
| if (res == null) { |
| return new TreeMap<String, String>(); |
| } |
| Map<String, String> ret = new HashMap<>(); |
| if (res instanceof Map) { |
| ret = (Map<String, String>) res; |
| } else { |
| for (Object o : (List) res) { |
| if (o instanceof Map) { |
| ret.putAll((Map) o); |
| } else { |
| ret.put((String) o, null); |
| } |
| } |
| } |
| |
| //ensure always same order for registrations with TreeMap |
| return new TreeMap<String, String>(ret); |
| } |
| } |