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package mobvista.prd.datasource.country.interest.mapreduce;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import mobvista.dmp.util.MRUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.compress.GzipCodec;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.util.GenericOptionsParser;
import java.io.IOException;
import java.util.List;
import java.util.Set;
/**
* Created by Administrator on 2017/5/12 0012.
* desc : 每天m系统的设备加上国家
*/
public class MergeMInterestDailyMR {
public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException {
Configuration conf = new Configuration();
String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
// conf.set("mapreduce.reduce.memory.mb", "1472");
Job job = Job.getInstance(conf, "MergeMInterestDailyMR");
FileOutputFormat.setCompressOutput(job, true);
FileOutputFormat.setOutputCompressorClass(job, GzipCodec.class);
job.setNumReduceTasks(Integer.parseInt(otherArgs[3]));
job.setJarByClass(MergeMInterestDailyMR.class);
job.setMapperClass(MergeMInterestDailyMapper.class);
job.setReducerClass(MergeMInterestDailyReducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
FileInputFormat.addInputPath(job, new Path(otherArgs[0]));
FileInputFormat.addInputPath(job, new Path(otherArgs[1]));
FileOutputFormat.setOutputPath(job, new Path(otherArgs[2]));
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
public static class MergeMInterestDailyMapper extends Mapper <LongWritable, Text, Text, Text> {
Text outKey = new Text();
Text outValue = new Text();
public void map (LongWritable key, Text value, Context context) throws IOException, InterruptedException {
try {
String filePath = context.getConfiguration().get("map.input.file");
String[] arr = MRUtils.SPLITTER.split(value.toString(), -1);
if (filePath.contains("/etl_adn_sdk_request_daily/")) {
outKey.set(MRUtils.JOINER.join(arr[0], arr[1]));//device_id,device_type
outValue.set(MRUtils.JOINER.join(arr[4], "daily"));//pkg_name
context.write(outKey, outValue);
} else {
outKey.set(MRUtils.JOINER.join(arr[0], arr[1]));//device_id,device_type
outValue.set(arr[9]);//country
context.write(outKey, outValue);
}
} catch (Exception e) {
return;
}
}
}
public static class MergeMInterestDailyReducer extends Reducer <Text, Text, Text, Text> {
Text outKey = new Text();
Text outValue = new Text();
public void reduce (Text key, Iterable<Text> values, Context context)
throws IOException, InterruptedException {
String country = "";
int num =0;
Set<String> set = Sets.newHashSet();
for (Text val : values) {
if (val.toString().contains("daily")) {
num = 1;
String pkg = val.toString().split("\t",-1)[0];
set.add(pkg);
} else {
country = val.toString();
}
}
if (num == 1 && !country.equals("")) {
for (String pkg : set) {
outValue.set(MRUtils.JOINER.join(country, pkg));
context.write(key, outValue);//device_id,device_type,country,pkg
}
}
}
}
}