我正在尝试编写一个过滤器UDF,它将输入作为元组,并返回元组,但是当我在Gruntt shell中定义函数时,我得到错误消息解析失败,我在哪里做错了这里猪错误:解析查询失败
REGISTER /home/filterUDF.jar;
DEFINE filDist 'FilterDistrictUdf/FilterDistrict'
package FilterDistrictUdf;
import java.io.IOException;
import org.apache.pig.FilterFunc;
import org.apache.pig.data.Tuple;
public class FilterDistrict extends FilterFunc{
@Override
public Boolean exec(Tuple input) throws IOException {
String line = input.toString();
String[] columns = line.split(",");
Double bplObjective = Double.parseDouble(columns[2]);
Double bplPerformance = Double.parseDouble(columns[10]);
//Double bplObjective = (Double)input.get(2);
//Double bplPerformance = (Double)input.get(10);
//BigInteger mul = new BigInteger("80");
//BigInteger div = new BigInteger("100");
if(bplPerformance >= ((bplObjective* 80)/100))
return true;
else
return false;
}
}
错误:
ERROR 1200: <line 40, column 15> Syntax error, unexpected symbol at or
near ''FilterDistrictUdf/FilterDistrict''
Failed to parse: <line 40, column 15> Syntax error, unexpected symbol at
or near ''FilterDistrictUdf/FilterDistrict''
at
org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:244)
at
org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:182)
at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1707)
at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1680)
at org.apache.pig.PigServer.registerQuery(PigServer.java:623)
at
org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1063)
at
org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:501) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:230) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:205) at org.apache。 (org.apache.pig.Main.run)(Main.java:558) at org.apache.pig.Main.main(Main.java: 170) 在sun.reflect.NativeMethodAccessorImpl.invoke0(本机方法) 在
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 在
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth odAccessorImpl.ja VA:43) 在java.lang.reflect.Method.invoke(Method.java:497) 在org.apache.hadoop.util.RunJar.main(RunJar.java:212)