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VoltDB client interface libraries
/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with VoltDB. If not, see .
*/
package org.voltdb.utils;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicLong;
import org.voltdb.client.ClientImpl;
import org.voltdb.client.ClientResponse;
import org.voltdb.client.VoltBulkLoader.BulkLoaderFailureCallBack;
import org.voltdb.client.VoltBulkLoader.VoltBulkLoader;
/**
* A CSVDataLoader implementation that uses the bulk loader to insert batched rows.
*/
public class CSVBulkDataLoader implements CSVDataLoader {
private final VoltBulkLoader m_loader;
private final BulkLoaderErrorHandler m_errHandler;
private final AtomicLong m_failedInsertCount = new AtomicLong(0);
public CSVBulkDataLoader(ClientImpl client, String tableName, int batchSize, boolean upsertMode,
BulkLoaderErrorHandler errHandler) throws Exception {
m_loader = client.getNewBulkLoader(tableName, batchSize, upsertMode, new CsvFailureCallback());
m_errHandler = errHandler;
}
public CSVBulkDataLoader(ClientImpl client, String tableName, int batchSize,
BulkLoaderErrorHandler errHandler) throws Exception {
this(client, tableName, batchSize, false, errHandler);
}
@Override
public void setFlushInterval(int delay, int seconds) {
m_loader.setFlushInterval(delay, seconds);
}
@Override
public void flush() throws ExecutionException, InterruptedException {
m_loader.flush();
}
public class CsvFailureCallback implements BulkLoaderFailureCallBack {
@Override
public void failureCallback(Object rowHandle, Object[] fieldList, ClientResponse response) {
m_failedInsertCount.incrementAndGet();
m_errHandler.handleError((RowWithMetaData) rowHandle, response, response.getStatusString());
}
}
@Override
public org.voltdb.VoltType[] getColumnTypes()
{
return m_loader.getColumnTypes();
}
@Override
public void insertRow(RowWithMetaData metaData, Object[] values) throws InterruptedException {
m_loader.insertRow(metaData, values);
}
@Override
public void close() throws Exception {
m_loader.close();
}
@Override
public long getProcessedRows()
{
return m_loader.getCompletedRowCount();
}
@Override
public long getFailedRows()
{
return m_failedInsertCount.get();
}
@Override
public Map getColumnNames()
{
return m_loader.getColumnNames();
}
}