eagle-core/eagle-app/eagle-app-base/src/main/java/org/apache/eagle/app/messaging/StreamEventMapper.java

/*
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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 org.apache.eagle.app.messaging;

import org.apache.eagle.alert.engine.model.StreamEvent;
import backtype.storm.tuple.Tuple;

import java.io.Serializable;
import java.util.List;

@FunctionalInterface
public interface StreamEventMapper extends Serializable {
    /**
     * Map from storm tuple to Stream Event.
     *
     * @param tuple
     * @return
     * @throws Exception
     */
    List<StreamEvent> map(Tuple tuple) throws Exception;
}