日期:2014-05-16 浏览次数:20570 次
import java.io.IOException; import java.lang.reflect.Type; import java.util.Iterator; /*import java.util.ArrayList; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern;*/ import org.apache.hadoop.io.LongWritable; import org.apache.hadoop.io.Text; import org.apache.hadoop.mapreduce.Mapper; import com.google.gson.Gson; import com.google.gson.reflect.TypeToken; public class ParseLogMapper extends Mapper<LongWritable, Text, Text, Text> { @Override public void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException { try{ String json; String line = value.toString(); String[] data = line.split("\\t"); LogColumns logColumns = new LogColumns(); logColumns.reqTime = data[0]; logColumns.reqIp = data[1]; json = data[2]; Type type = new TypeToken<LogJson>() { }.getType(); Gson gson = new Gson(); LogJson logJson = gson.fromJson(json, type); logColumns.devMac = logJson.getMac(); logColumns.devType = logJson.getDevice(); logColumns.devVersion = logJson.getVersion(); logColumns.report = "download"; //System.out.println(b.getRows()); //System.out.println(logJson.getAppList().size()); Iterator<AppInfo> i=logJson.getAppList().iterator(); while(i.hasNext()){ AppInfo appInfo = i.next(); logColumns.appName = appInfo.getkTitle(); logColumns.appid = appInfo.getkAppID(); logColumns.actionTime = appInfo.getkDownloadDate(); context.write(new Text(logColumns.toString()), new Text()); } }catch(Exception e){ } } }