package org.conan.myhadoop.mr.kpi;
import java.io.IOException;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.FileInputFormat;
import org.apache.hadoop.mapred.FileOutputFormat;
import org.apache.hadoop.mapred.JobClient;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.MapReduceBase;
import org.apache.hadoop.mapred.Mapper;
import org.apache.hadoop.mapred.OutputCollector;
import org.apache.hadoop.mapred.Reducer;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.mapred.TextInputFormat;
import org.apache.hadoop.mapred.TextOutputFormat;
public class KPIIP {
public static class KPIIPMapper extends MapReduceBase implements Mapper<Object, Text, Text, Text> {
private Text word = new Text();
private Text ips = new Text();
@Override
public void map(Object key, Text value, OutputCollector<Text, Text> output, Reporter reporter) throws IOException {
KPI kpi = KPI.filterIPs(value.toString());
if (kpi.isValid()) {
word.set(kpi.getRequest());
ips.set(kpi.getRemote_addr());
output.collect(word, ips);
}
}
}
public static class KPIIPReducer extends MapReduceBase implements Reducer<Text, Text, Text, Text> {
private Text result = new Text();
private Set<String> count = new HashSet<String>();
@Override
public void reduce(Text key, Iterator<Text> values, OutputCollector<Text, Text> output, Reporter reporter) throws IOException {
while (values.hasNext()) {
count.add(values.next().toString());
}
result.set(String.valueOf(count.size()));
output.collect(key, result);
}
}
public static void main(String[] args) throws Exception {
String input = "hdfs://192.168.1.210:9000/user/hdfs/log_kpi/";
String output = "hdfs://192.168.1.210:9000/user/hdfs/log_kpi/ip";
JobConf conf = new JobConf(KPIIP.class);
conf.setJobName("KPIIP");
conf.addResource("classpath:/hadoop/core-site.xml");
conf.addResource("classpath:/hadoop/hdfs-site.xml");
conf.addResource("classpath:/hadoop/mapred-site.xml");
conf.setMapOutputKeyClass(Text.class);
conf.setMapOutputValueClass(Text.class);
conf.setOutputKeyClass(Text.class);
conf.setOutputValueClass(Text.class);
conf.setMapperClass(KPIIPMapper.class);
conf.setCombinerClass(KPIIPReducer.class);
conf.setReducerClass(KPIIPReducer.class);
conf.setInputFormat(TextInputFormat.class);
conf.setOutputFormat(TextOutputFormat.class);
FileInputFormat.setInputPaths(conf, new Path(input));
FileOutputFormat.setOutputPath(conf, new Path(output));
JobClient.runJob(conf);
System.exit(0);
}
}