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SDK for PAI-FeatureStore service
package com.aliyun.openservices.paifeaturestore.domain;
import com.aliyun.openservices.paifeaturestore.constants.FSType;
import com.aliyun.openservices.paifeaturestore.dao.DaoConfig;
import com.aliyun.openservices.paifeaturestore.dao.FeatureViewDao;
import com.aliyun.openservices.paifeaturestore.dao.FeatureViewDaoFactory;
import com.aliyun.openservices.paifeaturestore.model.FeatureView;
import com.aliyun.openservices.paifeaturestore.model.FeatureViewRequestFields;
import com.aliyun.openservices.paifeaturestore.model.FeatureViewSeqConfig;
import com.aliyun.openservices.paifeaturestore.model.SeqConfig;
import com.aliyun.tea.utils.StringUtils;
import com.google.gson.Gson;
import java.util.*;
/* This class contains configuration information about the serialized feature view.*/
public class SequenceFeatureView implements IFeatureView{
com.aliyun.openservices.paifeaturestore.model.FeatureView featureView;
private final Project project;
private final FeatureEntity featureEntity;
private final FeatureViewDao featureViewDao;
private String userIdField;
private FeatureViewSeqConfig config;
private final Map offOnlineSeqMap = new HashMap<>();
public SequenceFeatureView(com.aliyun.openservices.paifeaturestore.model.FeatureView featureView, Project project, FeatureEntity featureEntity) {
this.featureView = featureView;
this.project = project;
this.featureEntity = featureEntity;
Gson gson = new Gson();
this.config=this.jsonToSeqConfig(featureView.getConfig());
for (FeatureViewRequestFields field : this.featureView.getFields()) {
if (field.isIsPrimaryKey()) {
this.userIdField = field.getName();
break;
}
}
for (SeqConfig seqConfig: this.config.getSeqConfigs()) {
offOnlineSeqMap.put(seqConfig.getOfflineSeqName(),seqConfig.getOnlineSeqName());
}
String[] s1={"user_id","item_id","event"};
String[] s2={"user_id","item_id","event","timestamp"};
int i=0;
if (this.config.getDeduplicationMethod().length==s1.length) {
for (String methodname:this.config.getDeduplicationMethod()) {
if (!methodname.equals(s1[i])) {
throw new RuntimeException("deduplication_method invalid");
}
i++;
}
this.config.setDeduplicationMethodNum(1);
} else if (this.config.getDeduplicationMethod().length==s2.length) {
for (String methodname:this.config.getDeduplicationMethod()) {
if (!methodname.equals(s2[i])) {
throw new RuntimeException("deduplication_method invalid");
}
i++;
}
this.config.setDeduplicationMethodNum(2);
} else {
throw new RuntimeException("deduplication_method invalid");
}
DaoConfig daoConfig = new DaoConfig();
daoConfig.datasourceType = project.getProject().getOnlineDatasourceType();
daoConfig.primaryKeyField=this.userIdField;
Map fieldTypeMap2 = new HashMap<>();
for (FeatureViewRequestFields field : featureView.getFields()) {
if (field.isIsPrimaryKey()) {
fieldTypeMap2.put(field.getName(), field.getType());
} else if (field.isIsPartition()) {
continue;
} else {
fieldTypeMap2.put(field.getName(), field.getType());
}
}
daoConfig.fieldTypeMap = fieldTypeMap2;
if (null != featureView.getWriteToFeaturedb() && featureView.getWriteToFeaturedb()) {
throw new RuntimeException("sequence feature view not support featuredb yet");
}
switch (project.getProject().getOnlineDatasourceType()) {
case Datasource_Type_Hologres:
daoConfig.hologresName = project.getOnlineStore().getDatasourceName();
daoConfig.hologresSeqOfflineTableName = project.getOnlineStore().getSeqOfflineTableName(this);
daoConfig.hologresSeqOnlineTableName=project.getOnlineStore().getSeqOnlineTableName(this);
break;
case Datasource_Type_IGraph:
if (!StringUtils.isEmpty(featureView.getConfig())) {
Map map = gson.fromJson(featureView.getConfig(), Map.class);
if (map.containsKey("save_original_field")) {
if (map.get("save_original_field") instanceof Boolean) {
daoConfig.saveOriginalField = (Boolean) map.get("save_original_field");
}
}
}
daoConfig.iGraphName = project.getOnlineStore().getDatasourceName();
daoConfig.groupName = project.getProject().getProjectName();
daoConfig.igraphEdgeName=project.getOnlineStore().getSeqOnlineTableName(this);
Map fieldMap = new HashMap<>();
Map fieldTypeMap = new HashMap<>();
for (FeatureViewRequestFields field : featureView.getFields()) {
if (field.isIsPrimaryKey()) {
fieldMap.put(field.getName(), field.getName());
fieldTypeMap.put(field.getName(), field.getType());
} else if (field.isIsPartition()) {
continue;
} else {
String name;
if (daoConfig.saveOriginalField) {
name = field.getName();
} else {
name = String.format("f%d", field.getPosition());
}
fieldMap.put(name, field.getName());
fieldTypeMap.put(name, field.getType());
}
}
daoConfig.fieldMap = fieldMap;
daoConfig.fieldTypeMap = fieldTypeMap;
break;
case Datasource_Type_TableStore:
daoConfig.otsName = project.getOnlineStore().getDatasourceName();
daoConfig.otsSeqOnlineTableName=project.getOnlineStore().getSeqOnlineTableName(this);
daoConfig.otsSeqOfflineTableName=project.getOnlineStore().getSeqOfflineTableName(this);
break;
case Datasource_Type_FeatureDB:
throw new RuntimeException("sequence feature view not support featuredb yet");
default:
break;
}
featureViewDao = FeatureViewDaoFactory.getFeatureViewDao(daoConfig);
}
public FeatureViewSeqConfig jsonToSeqConfig(String config){
Gson gson = new Gson();
FeatureViewSeqConfig featureViewSeqConfig = gson.fromJson(config, FeatureViewSeqConfig.class);
return featureViewSeqConfig;
}
public Project getProject() {
return project;
}
public FeatureView getFeatureView() {
return featureView;
}
@Override
public FeatureEntity getFeatureEntity() {
return featureEntity;
}
@Override
public void writeFeatures(List> data) {
throw new RuntimeException("sequence feature view not support this function") ;
}
@Override
public void writeFlush() {
throw new RuntimeException("sequence feature view not support this function") ;
}
@Override
public FeatureResult getOnlineFeatures(String[] joinIds) throws Exception {
return this.getOnlineFeatures(joinIds, new String[]{"*"}, null);
}
@Override
public FeatureResult getOnlineFeatures(String[] joinIds, String[] features, Map aliasFields) throws Exception {
FeatureViewSeqConfig config = this.config;
List onlineseqConfigs =new ArrayList<>();
for (String f:features) {
if (f.equals("*")) {
onlineseqConfigs=Arrays.asList(config.getSeqConfigs());
break;
} else {
for (SeqConfig sc:config.getSeqConfigs()) {
if (sc.getOnlineSeqName().equals(f)) {
onlineseqConfigs.add(sc);
break;
}
}
if (f==null) {
throw new RuntimeException(String.format("sequence feature name :%s not found in feature view config",f));
}
}
}
SeqConfig[] seqConfigs = new SeqConfig[onlineseqConfigs.size()];
for (int k=0;k