/**
* Copyright 2013 Cloudera Inc.
*
* Licensed 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.kitesdk.examples.logging;
import org.apache.avro.Schema;
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.generic.GenericRecordBuilder;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.log4j.Logger;
/**
* A simple application to log events to a dataset.
*/
public class App extends Configured implements Tool {
@Override
public int run(String[] args) throws Exception {
// Get a log4j logger
Logger logger = Logger.getLogger(App.class);
// Load the schema from our classpath
Schema schema = new Schema.Parser().parse(
getClass().getResourceAsStream("/event.avsc"));
// Build some events using the generic Avro API and log them using log4j
GenericRecordBuilder builder = new GenericRecordBuilder(schema);
for (long i = 0; i < 10; i++) {
GenericRecord event = builder.set("id", i)
.set("message", "Hello " + i).build();
System.out.println("Sending to log4j: " + event);
logger.info(event);
}
return 0;
}
public static void main(String... args) throws Exception {
int rc = ToolRunner.run(new App(), args);
System.exit(rc);
}
}