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package mobvista.dmp.datasource.adn.mapreduce;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import mobvista.dmp.common.CommonMapReduce;
import mobvista.dmp.common.CommonMapper;
import mobvista.dmp.common.Constants;
import mobvista.dmp.util.MRUtils;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
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.Reducer;
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.codehaus.jackson.JsonNode;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.type.JavaType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* author: houying
* date : 16-10-19
* desc :
*/
public class AdnSdkInterestTotalMRv2 extends CommonMapReduce {
private static final Logger logger = LoggerFactory.getLogger(AdnSdkInterestTotalMRv2.class);
public static void main(String[] args) throws Exception {
start(new AdnSdkInterestTotalMRv2(args[4], AdnSdkMapper.class, null), args);
}
public AdnSdkInterestTotalMRv2(String name, Class<? extends Mapper> mapperClass, Class<? extends Reducer> reducerClass) {
super(name, mapperClass, reducerClass);
}
public static class AdnSdkMapper extends CommonMapper {
private ObjectMapper objectMapper;
private JavaType javaType;
private Map<String, String> tagMap;
@Override
protected void setup(Context context) throws IOException, InterruptedException {
objectMapper = new ObjectMapper();
javaType = objectMapper.getTypeFactory().constructMapType(HashMap.class, String.class, Object.class);
try {
// 将broadcast反序列化成map对象
Configuration conf = context.getConfiguration();
String tag = conf.get(Constants.MR_BROADCAST_STR);
tagMap = buildBroadcast(tag, conf, 0, 3);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
@Override
protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
String[] array = MRUtils.SPLITTER.split(value.toString(), -1);
if (array.length != 4) { //dm_install_tag
return;
}
JsonNode appList = objectMapper.readTree(array[3]);
List<Map<String, Object>> list = Lists.newArrayListWithExpectedSize(appList.size());
for (JsonNode node: appList) {
Map<String, Object> map = objectMapper.readValue(node, javaType);
String pkgName = (String) map.get("package_name");
Object tag = tagMap.get(pkgName);
if (tag == null) {
continue;
}
map.remove("date");
map.put("tag", tag);
list.add(map);
}
if (list.size() == 0) {
return;
}
outKey.set(MRUtils.JOINER.join(
array[0], array[1], array[2]
));
outValue.set(objectMapper.writeValueAsString(list));
context.write(outKey, outValue);
}
}
@Override
protected void otherSetting(Job job, String[] args) throws Exception {
job.getConfiguration().set(Constants.MR_BROADCAST_STR, args[1]);
}
@Override
protected void setOutputPath(Job job, String[] args) throws IOException {
FileOutputFormat.setOutputPath(job, new Path(args[2]));
FileOutputFormat.setCompressOutput(job, true);
FileOutputFormat.setOutputCompressorClass(job, GzipCodec.class);
}
@Override
protected void setInputPath(Job job, String[] args) throws IOException {
FileInputFormat.addInputPath(job, new Path(args[0]));
job.setInputFormatClass(TextInputFormat.class);
}
}