/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.ignite.internal.visor.query;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collection;
import java.util.List;
import java.util.UUID;
import org.apache.ignite.internal.util.typedef.internal.S;
import org.apache.ignite.internal.util.typedef.internal.U;
import org.apache.ignite.internal.visor.VisorDataTransferObject;
/**
* Result for cache query tasks.
*/
public class VisorQueryResult extends VisorDataTransferObject {
/** */
private static final long serialVersionUID = 0L;
/** Node where query executed. */
private UUID resNodeId;
/** Query ID to store in node local. */
private String qryId;
/** Query columns descriptors. */
private List<VisorQueryField> cols;
/** Rows fetched from query. */
private List<Object[]> rows;
/** Whether query has more rows to fetch. */
private boolean hasMore;
/** Query duration */
private long duration;
/**
* Default constructor.
*/
public VisorQueryResult() {
// No-op.
}
/**
* @param resNodeId Node where query executed.
* @param qryId Query ID for future extraction in nextPage() access.
* @param cols Columns descriptors.
* @param rows Rows fetched from query.
* @param hasMore Whether query has more rows to fetch.
* @param duration Query duration.
*/
public VisorQueryResult(
UUID resNodeId,
String qryId,
List<VisorQueryField> cols,
List<Object[]> rows,
boolean hasMore,
long duration
) {
this.resNodeId = resNodeId;
this.qryId = qryId;
this.cols = cols;
this.rows = rows;
this.hasMore = hasMore;
this.duration = duration;
}
/**
* @return Response node id.
*/
public UUID getResponseNodeId() {
return resNodeId;
}
/**
* @return Query id.
*/
public String getQueryId() {
return qryId;
}
/**
* @return Columns.
*/
public Collection<VisorQueryField> getColumns() {
return cols;
}
/**
* @return Rows fetched from query.
*/
public List<Object[]> getRows() {
return rows;
}
/**
* @return Whether query has more rows to fetch.
*/
public boolean isHasMore() {
return hasMore;
}
/**
* @return Duration of next page fetching.
*/
public long getDuration() {
return duration;
}
/** {@inheritDoc} */
@Override protected void writeExternalData(ObjectOutput out) throws IOException {
U.writeUuid(out, resNodeId);
U.writeString(out, qryId);
U.writeCollection(out, cols);
U.writeCollection(out, rows);
out.writeBoolean(hasMore);
out.writeLong(duration);
}
/** {@inheritDoc} */
@Override protected void readExternalData(byte protoVer, ObjectInput in) throws IOException, ClassNotFoundException {
resNodeId = U.readUuid(in);
qryId = U.readString(in);
cols = U.readList(in);
rows = U.readList(in);
hasMore = in.readBoolean();
duration = in.readLong();
}
/** {@inheritDoc} */
@Override public String toString() {
return S.toString(VisorQueryResult.class, this);
}
}