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* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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package org.apache.flume.serialization;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import org.apache.avro.file.DataFileReader;
import org.apache.avro.generic.GenericData;
import org.apache.avro.generic.GenericDatumReader;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.io.DatumReader;
import org.apache.commons.io.FileUtils;
import org.apache.flume.Context;
import org.apache.flume.Event;
import org.apache.flume.event.EventBuilder;
import org.apache.flume.source.SyslogUtils;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Test;
import com.google.common.base.Charsets;
import com.google.common.collect.Lists;
public class TestSyslogAvroEventSerializer {
File testFile = new File("src/test/resources/SyslogEvents.avro");
File schemaFile = new File("src/test/resources/syslog_event.avsc");
private static List<Event> generateSyslogEvents() {
List<Event> list = Lists.newArrayList();
Event e;
// generate one that we supposedly parsed with SyslogTcpSource
e = EventBuilder.withBody("Apr 7 01:00:00 host Msg 01", Charsets.UTF_8);
e.getHeaders().put(SyslogUtils.SYSLOG_FACILITY, "1");
e.getHeaders().put(SyslogUtils.SYSLOG_SEVERITY, "2");
list.add(e);
// generate another supposedly parsed with SyslogTcpSource with 2-digit date
e = EventBuilder.withBody("Apr 22 01:00:00 host Msg 02", Charsets.UTF_8);
e.getHeaders().put(SyslogUtils.SYSLOG_FACILITY, "1");
e.getHeaders().put(SyslogUtils.SYSLOG_SEVERITY, "3");
list.add(e);
// generate a "raw" syslog event
e = EventBuilder.withBody("<8>Apr 22 01:00:00 host Msg 03", Charsets.UTF_8);
list.add(e);
return list;
}
@Test
public void test() throws FileNotFoundException, IOException {
// Snappy currently broken on Mac in OpenJDK 7 per FLUME-2012
Assume.assumeTrue(!"Mac OS X".equals(System.getProperty("os.name")) ||
!System.getProperty("java.version").startsWith("1.7."));
//Schema schema = new Schema.Parser().parse(schemaFile);
// create the file, write some data
OutputStream out = new FileOutputStream(testFile);
String builderName = SyslogAvroEventSerializer.Builder.class.getName();
Context ctx = new Context();
ctx.put("syncInterval", "4096");
ctx.put("compressionCodec", "snappy");
EventSerializer serializer =
EventSerializerFactory.getInstance(builderName, ctx, out);
serializer.afterCreate(); // must call this when a file is newly created
List<Event> events = generateSyslogEvents();
for (Event e : events) {
serializer.write(e);
}
serializer.flush();
serializer.beforeClose();
out.flush();
out.close();
// now try to read the file back
DatumReader<GenericRecord> reader = new GenericDatumReader<GenericRecord>();
DataFileReader<GenericRecord> fileReader =
new DataFileReader<GenericRecord>(testFile, reader);
GenericRecord record = new GenericData.Record(fileReader.getSchema());
int numEvents = 0;
while (fileReader.hasNext()) {
fileReader.next(record);
int facility = (Integer) record.get("facility");
int severity = (Integer) record.get("severity");
long timestamp = (Long) record.get("timestamp");
String hostname = record.get("hostname").toString();
String message = record.get("message").toString();
Assert.assertEquals("Facility should be 1", 1, facility);
System.out.println(timestamp + ": " + message);
numEvents++;
}
fileReader.close();
Assert.assertEquals("Should have found a total of 3 events", 3, numEvents);
FileUtils.forceDelete(testFile);
}
}