75 lines
2.4 KiB
Java
75 lines
2.4 KiB
Java
/*
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* (C) Copyright 2014,2016 Hewlett Packard Enterprise Development Company LP.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package monasca.thresh.infrastructure.thresholding.deserializer;
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import monasca.common.model.event.AlarmDefinitionCreatedEvent;
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import monasca.common.model.event.AlarmDefinitionDeletedEvent;
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import monasca.common.model.event.AlarmDefinitionUpdatedEvent;
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import monasca.common.model.event.AlarmDeletedEvent;
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import monasca.common.model.event.AlarmUpdatedEvent;
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import monasca.common.util.Serialization;
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import monasca.thresh.utils.TupleDeserializer;
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import org.apache.storm.tuple.Fields;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.Serializable;
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import java.util.Collections;
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import java.util.List;
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/**
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* Deserializes events using registered serialization types.
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*
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* <ul>
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* <li>Output: Object event
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* </ul>
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*/
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public class EventDeserializer implements TupleDeserializer, Serializable {
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private static final Logger logger = LoggerFactory.getLogger(EventDeserializer.class);
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private static final long serialVersionUID = -1306620481933667305L;
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private static final Fields FIELDS = new Fields("event");
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static {
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// Register event types
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Serialization.registerTarget(AlarmDefinitionUpdatedEvent.class);
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Serialization.registerTarget(AlarmDefinitionDeletedEvent.class);
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Serialization.registerTarget(AlarmDefinitionCreatedEvent.class);
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Serialization.registerTarget(AlarmUpdatedEvent.class);
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Serialization.registerTarget(AlarmDeletedEvent.class);
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}
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@Override
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public List<List<?>> deserialize(byte[] tuple) {
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try {
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String tupleStr = new String(tuple, "UTF-8");
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return Collections.<List<?>>singletonList(Collections.singletonList(Serialization
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.fromJson(tupleStr)));
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} catch (Exception ex) {
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logger.error("Failed to parse event: " + new String(tuple), ex);
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return null;
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}
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}
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@Override
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public Fields getOutputFields() {
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return FIELDS;
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}
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}
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