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JDBC Type 4 driver for MySQL
/*
* Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 2.0, as published by the
* Free Software Foundation.
*
* This program is also distributed with certain software (including but not
* limited to OpenSSL) that is licensed under separate terms, as designated in a
* particular file or component or in included license documentation. The
* authors of MySQL hereby grant you an additional permission to link the
* program and your derivative works with the separately licensed software that
* they have included with MySQL.
*
* Without limiting anything contained in the foregoing, this file, which is
* part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* 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 General Public License, version 2.0,
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.cj.x.io;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import com.mysql.cj.api.result.Row;
import com.mysql.cj.api.result.RowList;
import com.mysql.cj.api.x.core.ResultCtor;
import com.mysql.cj.api.x.io.ResultListener;
import com.mysql.cj.core.result.BufferedRowList;
import com.mysql.cj.core.result.Field;
import com.mysql.cj.x.core.StatementExecuteOk;
import com.mysql.cj.x.core.XDevAPIError;
/**
* Create an entire (buffered) result from the data fed to this result listener.
*
* @param
* The type of result that will be created (and posted to the future)
*/
public class ResultCreatingResultListener implements ResultListener {
private ArrayList metadata;
private List rows = new ArrayList<>();
private ResultCtor resultCtor;
private CompletableFuture future;
public ResultCreatingResultListener(ResultCtor resultCtor, CompletableFuture future) {
this.resultCtor = resultCtor;
this.future = future;
}
public void onMetadata(ArrayList metadataFields) {
this.metadata = metadataFields;
}
public void onRow(XProtocolRow r) {
this.rows.add(r);
}
public void onComplete(StatementExecuteOk ok) {
RowList rowList = new BufferedRowList(this.rows);
RES_T result = this.resultCtor.apply(this.metadata).apply(rowList, () -> ok);
this.future.complete(result);
}
public void onError(XDevAPIError error) {
this.future.completeExceptionally(error);
}
public void onException(Throwable t) {
this.future.completeExceptionally(t);
}
}