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/*
* 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 org.apache.flume.sink.elasticsearch;
import com.google.common.collect.Maps;
import org.apache.commons.lang.StringUtils;
import org.apache.flume.Event;
import org.apache.flume.event.SimpleEvent;
import org.joda.time.DateTimeUtils;
import java.util.Map;
/**
* {@link org.apache.flume.Event} implementation that has a timestamp.
* The timestamp is taken from (in order of precedence):
* - The "timestamp" header of the base event, if present
* - The "@timestamp" header of the base event, if present
* - The current time in millis, otherwise
*
*/
final class TimestampedEvent extends SimpleEvent {
private final long timestamp;
TimestampedEvent(Event base) {
setBody(base.getBody());
Map headers = Maps.newHashMap(base.getHeaders());
String timestampString = headers.get("timestamp");
if (StringUtils.isBlank(timestampString)) {
timestampString = headers.get("@timestamp");
}
if (StringUtils.isBlank(timestampString)) {
this.timestamp = DateTimeUtils.currentTimeMillis();
headers.put("timestamp", String.valueOf(timestamp ));
} else {
this.timestamp = Long.valueOf(timestampString);
}
setHeaders(headers);
}
long getTimestamp() {
return timestamp;
}
}
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