io.questdb.cutlass.http.processors.TextQueryProcessorState Maven / Gradle / Ivy
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*
* Copyright (c) 2014-2019 Appsicle
* Copyright (c) 2019-2024 QuestDB
*
* 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.
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package io.questdb.cutlass.http.processors;
import io.questdb.cairo.sql.Record;
import io.questdb.cairo.sql.RecordCursor;
import io.questdb.cairo.sql.RecordCursorFactory;
import io.questdb.cairo.sql.RecordMetadata;
import io.questdb.cutlass.http.HttpConnectionContext;
import io.questdb.std.Misc;
import io.questdb.std.Mutable;
import io.questdb.std.Rnd;
import io.questdb.std.str.StringSink;
import java.io.Closeable;
public class TextQueryProcessorState implements Mutable, Closeable {
final StringSink query = new StringSink();
private final HttpConnectionContext httpConnectionContext;
boolean hasNext;
int columnIndex;
long count;
boolean countRows = false;
RecordCursor cursor;
char delimiter = ',';
String fileName;
RecordMetadata metadata;
boolean noMeta = false;
boolean pausedQuery = false;
int queryState;
Record record;
RecordCursorFactory recordCursorFactory;
Rnd rnd;
long skip;
long stop;
private boolean queryCacheable = false;
public TextQueryProcessorState(HttpConnectionContext httpConnectionContext) {
this.httpConnectionContext = httpConnectionContext;
clear();
}
@Override
public void clear() {
delimiter = ',';
fileName = null;
metadata = null;
rnd = null;
record = null;
cursor = Misc.free(cursor);
if (null != recordCursorFactory) {
if (queryCacheable) {
httpConnectionContext.getSelectCache().put(query, recordCursorFactory);
} else {
recordCursorFactory.close();
}
recordCursorFactory = null;
}
queryCacheable = false;
query.clear();
queryState = JsonQueryProcessorState.QUERY_SETUP_FIRST_RECORD;
columnIndex = 0;
skip = 0;
stop = 0;
count = 0;
noMeta = false;
countRows = false;
pausedQuery = false;
}
@Override
public void close() {
cursor = Misc.free(cursor);
recordCursorFactory = Misc.free(recordCursorFactory);
}
public long getFd() {
return httpConnectionContext.getFd();
}
void setQueryCacheable(boolean queryCacheable) {
this.queryCacheable = queryCacheable;
}
}