/*
* Copyright [2012-2014] PayPal Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ml.shifu.shifu.udf;
import ml.shifu.shifu.container.obj.EvalConfig;
import ml.shifu.shifu.container.obj.RawSourceData.SourceType;
import ml.shifu.shifu.core.Reasoner;
import ml.shifu.shifu.fs.PathFinder;
import ml.shifu.shifu.util.CommonUtils;
import org.apache.pig.data.Tuple;
import org.apache.pig.data.TupleFactory;
import org.apache.pig.impl.logicalLayer.schema.Schema;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* CalculateReasonCodeUDF class is to calculate the reason code for each evaluation data
*/
public class CalculateReasonCodeUDF extends AbstractTrainerUDF<Tuple> {
private Map<String, String> reasonCodeMap;
private String[] headers;
public CalculateReasonCodeUDF(String source, String pathModelConfig, String pathColumnConfig, String evalSetName)
throws Exception {
super(source, pathModelConfig, pathColumnConfig);
EvalConfig evalConfig = modelConfig.getEvalConfigByName(evalSetName);
SourceType sourceType = evalConfig.getDataSet().getSource();
// CommonUtils.determineSource(modelConfig.getRunConf().getRunMode(),
// evalConfig.getDataSet().getSource());
PathFinder pathFinder = new PathFinder(modelConfig);
reasonCodeMap = CommonUtils
.loadAndFlattenReasonCodeMap(pathFinder.getReasonCodeMapPath(sourceType), sourceType);
headers = CommonUtils.getFinalHeaders(evalConfig);
log.debug("The length of header is: " + headers.length);
}
public Tuple exec(Tuple input) throws IOException {
Tuple result = TupleFactory.getInstance().newTuple();
if(input == null || input.size() == 0 || headers.length == 0 || input.size() != headers.length) {
return null;
}
Map<String, String> rawDataMap = new HashMap<String, String>();
try {
for(int i = 0; i < headers.length; i++) {
Object t = input.get(i);
if(t == null) {
continue;
}
rawDataMap.put(headers[i], t.toString());
// log.info(headers[i] + ", " + t.toString());
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
// result.append(rawDataMap.toString());
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Reasoner reasoner = new Reasoner(this.reasonCodeMap);
result.append(rawDataMap.get("UnauthScore"));
result.append(rawDataMap.get("TxnSnrId"));
result.append(rawDataMap.get("TxnCpId"));
result.append(sdf.format(new Date(1000 * Long.parseLong(rawDataMap.get("TxnCreatedTs")))));
result.append(rawDataMap.get("TxnAmtUsd"));
result.append(rawDataMap.get("ActivityID"));
reasoner.calculateReasonCodes(columnConfigList, rawDataMap);
List<String> reasons = reasoner.getReasonCodes();
try {
if(reasons != null) {
for(String reason: reasons) {
result.append(reason);
}
} else {
result.append("Error: No Reason Code Returned.");
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
return result;
}
public Schema outputSchema(Schema input) {
// Utils.getSchemaFromString(schemaString)
return null;
}
}