64 lines
1.9 KiB
Java
64 lines
1.9 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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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 com.hpcloud.mon.infrastructure.thresholding.deserializer;
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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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import backtype.storm.tuple.Fields;
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import com.hpcloud.mon.common.event.AlarmCreatedEvent;
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import com.hpcloud.mon.common.event.AlarmDeletedEvent;
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import com.hpcloud.mon.common.event.AlarmUpdatedEvent;
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import com.hpcloud.streaming.storm.TupleDeserializer;
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import com.hpcloud.util.Serialization;
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/**
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* Deserializes MaaS 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 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(AlarmCreatedEvent.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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return Collections.<List<?>>singletonList(Collections.singletonList(Serialization.fromJson(tuple)));
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} catch (Exception ignore) {
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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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