org.frameworkset.tran.plugin.milvus.input.MilvusResultSet Maven / Gradle / Ivy
Show all versions of bboss-datatran-milvus Show documentation
package org.frameworkset.tran.plugin.milvus.input;
/**
* Copyright 2008 biaoping.yin
*
* 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.
*/
import io.milvus.orm.iterator.QueryIterator;
import io.milvus.response.QueryResultsWrapper;
import org.frameworkset.tran.*;
import org.frameworkset.tran.context.ImportContext;
import org.frameworkset.tran.record.NextAssert;
import org.frameworkset.tran.record.TranMetaDataLazeLoad;
import java.util.Date;
import java.util.List;
/**
*
Description:
*
* Copyright (c) 2018
* @Date 2019/8/3 12:27
* @author biaoping.yin
* @version 1.0
*/
public class MilvusResultSet extends LastValue implements TranResultSet {
private QueryIterator queryIterator;
private List res;
private MilvusRecord milvusRecord;
private int pos;
public MilvusResultSet(ImportContext importContext, QueryIterator queryIterator) {
this.importContext = importContext;
this.queryIterator = queryIterator;
}
@Override
public Object getValue(int i, String colName, int sqlType) throws DataImportException {
return getValue( colName);
}
@Override
public Object getValue(String colName, int sqlType) throws DataImportException {
return getValue( colName);
}
@Override
public Date getDateTimeValue(String colName) throws DataImportException {
return record.getDateTimeValue(colName);
}
@Override
public NextAssert next() throws DataImportException {
NextAssert nextAssert = new NextAssert();
if(isStop() || importContext.getInputPlugin().isStopCollectData()) {
queryIterator.close();
return nextAssert;
}
boolean hasNext = false;
pos ++;
if(res != null && pos < res.size()){
hasNext = true;
}
else{
pos = 0;
res = queryIterator.next();
hasNext = !res.isEmpty();
}
if( hasNext){
milvusRecord = new MilvusRecord(res.get(pos),getTaskContext(),importContext);
milvusRecord.setTranMeta(this.getMetaData());
record = milvusRecord;
}
else{
queryIterator.close();
}
nextAssert.setHasNext(hasNext);
return nextAssert;
}
@Override
public TranMeta getMetaData() {
return new DefaultTranMetaData(new TranMetaDataLazeLoad() {
@Override
public String[] lazeLoad() {
return DefaultTranMetaData.convert(milvusRecord.getKeys());
}
});
}
public Object getKeys(){
return record.getKeys();
}
@Override
public Object getRecord() {
return record.getData();
}
// @Override
// public void stop() {
// stoped = true;
// }
@Override
public Object getMetaValue(String fieldName) {
return getValue(fieldName);
}
}