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package mobvista.dmp.datasource.age.mapreduce;
import com.google.common.collect.Maps;
import mobvista.dmp.util.MRUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
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.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.LazyOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.apache.hadoop.util.GenericOptionsParser;
import org.codehaus.jackson.map.ObjectMapper;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigDecimal;
import java.net.URI;
import java.util.Map;
/**
* Created by liushuai on 2017/2/17 0017.
*/
public class CalcDeviceAgeMR {
public static void main(String[] args) throws InterruptedException, IOException, ClassNotFoundException {
Configuration conf = new Configuration();
conf.set("mapreduce.map.speculative", "true");
conf.set("mapreduce.reduce.speculative", "true");
conf.set("mapreduce.task.io.sort.mb", "500");
conf.set("mapreduce.reduce.java.opts", "-Xmx1536m");
conf.set("mapreduce.reduce.memory.mb", "2048");
conf.set("mapreduce.reduce.shuffle.parallelcopies", "50");
String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
conf.set("file", otherArgs[2]);
conf.set("mapreduce.map.memory.mb", "1331");
Job job = Job.getInstance(conf, "CalcDeviceAgeMR");
job.setNumReduceTasks(0);
job.setJarByClass(CalcDeviceAgeMR.class);
FileOutputFormat.setCompressOutput(job, true);
FileOutputFormat.setOutputCompressorClass(job, GzipCodec.class);
job.setMapperClass(CalcDeviceYearMapper.class);
// 取消part-r-00000新式文件输出
LazyOutputFormat.setOutputFormatClass(job, TextOutputFormat.class);
job.setMapOutputKeyClass(Text.class);
job.setMapOutputValueClass(Text.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(Text.class);
job.setInputFormatClass(TextInputFormat.class);
FileInputFormat.addInputPath(job, new Path(otherArgs[0]));
FileOutputFormat.setOutputPath(job, new Path(otherArgs[1]));
// job.setOutputFormatClass(TextMultipleOutputFormat.class);
// MultipleOutputs.addNamedOutput(job, "age", TextOutputFormat.class,
// Text.class, Text.class);
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
public static class CalcDeviceYearMapper extends Mapper<LongWritable, Text, Text, Text> {
Map<String, String> packageMap = Maps.newHashMapWithExpectedSize(10000);
Text outKey = new Text();
// Text outKey_v2 = new Text();
Text outValue = new Text();
ObjectMapper objectMapper = new ObjectMapper(); //转换器
// private String outPath;
// private String outPath_v2;
public void setup(Context context) throws IOException, InterruptedException {
Configuration conf = context.getConfiguration();
// outPath = conf.get("outPath");
// outPath_v2 = conf.get("outPath_v2");
//读取CalcPackageDictMR的结果，放入Map中
String path = conf.get("file");
FileSystem fileSystem = FileSystem.get(URI.create(path), context.getConfiguration());
BufferedReader reader = new BufferedReader(new InputStreamReader(fileSystem.open(new Path(path))));
String readLine = "";
while ((readLine = reader.readLine()) != null) {
String[] arr = MRUtils.SPLITTER.split(readLine, -1);
String age = arr[1].substring(1);
packageMap.put(arr[0], age + "\t" + arr[2]);
}
reader.close();
}
public void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
String line = value.toString();
String[] fields = MRUtils.SPLITTER.split(line, -1);
if (fields.length != 4) {
return;
}
String[] arr = Util.wellSplit.split(fields[1], -1);
String score = "-1.0";
int num = 0;
String tag = "unknown";
Map<Integer, Double> stage = Maps.newHashMap();
Map<Integer, Integer> stageNum = Maps.newHashMap();
Map<Integer, Double> st = Maps.newHashMap();
for (String packageName : arr) {
String ageRatioSource = packageMap.get(packageName);
if (ageRatioSource == null) {
continue;
}
String[] dictValue = MRUtils.SPLITTER.split(ageRatioSource);
if (dictValue[1].equals("confirm")) {
score = dictValue[0];
tag = dictValue[1];
num = 1;
break;
} else if (dictValue[1].equals("unbelievable")) {
if (tag.equals("unknown")) {
score = "-1.0";
tag = dictValue[1];
}
} else {
num += 1;
String[] item = Util.verticalLine.split(dictValue[0], -1);
for (String ageRatios : item) {
if (ageRatios == null) {
continue;
}
int generation = Integer.parseInt(Util.colonSplit.split(ageRatios, -1)[0]);//年龄段
double ageRatio = Double.parseDouble(Util.colonSplit.split(ageRatios, -1)[1]);//权重
Double stageAgeRatio = stage.get(generation);
if (stageAgeRatio == null) {
stage.put(generation, ageRatio);
stageNum.put(generation, 1);
} else {
double val = stageAgeRatio + ageRatio;
stage.put(generation, val);
stageNum.put(generation, stageNum.get(generation) + 1);
}
}
score = "";
tag = dictValue[1];
}
}
if (num == 1 && tag.equals("confirm")) {
score = "|" + score;
}
if (num == 1 && tag.equals("calc")) {
for (Map.Entry<Integer, Double> entry : stage.entrySet()) {
score = score + '|' + entry.getKey() + ":" + entry.getValue();
}
}
if (num > 1) {
for (Map.Entry<Integer, Double> entry : stage.entrySet()) {
Integer gen = entry.getKey();
double rat = entry.getValue() / stageNum.get(gen);
st.put(gen, rat);
}
for (Map.Entry<Integer, Double> entry : st.entrySet()) {
score = score + '|' + entry.getKey() + ":" + entry.getValue();
}
}
Map<String, Double> outMap = Maps.newHashMap();
outMap.put("0-17", 0.0);
outMap.put("18-24", 0.0);
outMap.put("25-44", 0.0);
outMap.put("45-59", 0.0);
outMap.put("60+", 0.0);
String[] scoreArr = score.split("\\|", -1);
BigDecimal ageRatioDouble = null; //小数转换
for (String ageRatio : scoreArr) {
if (!ageRatio.equals("") && !ageRatio.equals("-1.0")) {
String[] tmpRatio = Util.colonSplit.split(ageRatio, -1);
String generation = Util.getAge(Integer.parseInt(tmpRatio[0]));
if (generation != null && !generation.equals("")) {
ageRatioDouble = new BigDecimal(Double.parseDouble(tmpRatio[1]))
.setScale(6, BigDecimal.ROUND_HALF_UP);
outMap.put(generation, ageRatioDouble.doubleValue());
}
} else if (ageRatio.equals("-1.0")) {
outMap = Maps.newHashMap();
outMap.put("unbelievable", -1.0);
}
}
Map<String, String> ageMap = Maps.newHashMap();
if (!fields[2].equals("null")) {
String[] ageTags = fields[2].split("\\$", -1);
for (String ageTag : ageTags) {
if (ageTag == null || ageTag.equals("")) {
return;
}
String[] ageForm = Util.wellSplit.split(ageTag, -1);
String generation = Util.getAge(Integer.parseInt(ageForm[0]));
if (!generation.equals("")) {
ageMap.put(generation, ageForm[1]);
}
}
} else {
ageMap.put("null", "null");
}
Map<String, Map> lastMap = Maps.newLinkedHashMap();
lastMap.put("age_and_source", ageMap);
lastMap.put("age_and_proportion", outMap);
String packageName = fields[1].replace("#", ",");//包名之间以逗号分隔
String[] ss = Util.wellSplit.split(fields[3], -1);
outValue.set(MRUtils.JOINER.join(objectMapper.writeValueAsString(lastMap), tag));
outKey.set(MRUtils.JOINER.join(fields[0], //device_id
ss[0], // device_type
packageName // 包名
));
context.write(outKey, outValue);
/*
outKey_v2.set(outPath_v2 + "," + MRUtils.JOINER.join(fields[0], //device_id
ss[0], // device_type
packageName, // 包名
ss[1] // update_date
));
context.write(outKey_v2, outValue);
*/
// context.write(outKey, outValue
}
}
}