Package com.odiago.flumebase.exec.builtins

Source Code of com.odiago.flumebase.exec.builtins.event_timestamp

/**
* Licensed to Odiago, Inc. under one or more contributor license
* agreements.  See the NOTICE.txt file distributed with this work for
* additional information regarding copyright ownership.  Odiago, Inc.
* 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 com.odiago.flumebase.exec.builtins;

import java.util.Collections;
import java.util.List;

import com.cloudera.flume.core.Event;

import com.odiago.flumebase.exec.EventWrapper;

import com.odiago.flumebase.lang.ScalarFunc;
import com.odiago.flumebase.lang.Timestamp;
import com.odiago.flumebase.lang.Type;

/**
* Return the timestamp field of the current event as a TIMESTAMP.
*/
public class event_timestamp extends ScalarFunc {
  @Override
  public Type getReturnType() {
    return Type.getPrimitive(Type.TypeName.TIMESTAMP);
  }

  @Override
  public Object eval(EventWrapper event, Object... args) {
    Event e = event.getEvent();
    return new Timestamp(e.getTimestamp(), e.getNanos());
  }

  @Override
  public List<Type> getArgumentTypes() {
    return Collections.emptyList();
  }
}
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