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https://issues.apache.org/jira/browse/DRILL-5337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16235916#comment-16235916
]
ASF GitHub Bot commented on DRILL-5337:
---------------------------------------
Github user Vlad-Storona commented on a diff in the pull request:
https://github.com/apache/drill/pull/774#discussion_r148567835
--- Diff:
contrib/storage-opentsdb/src/main/java/org/apache/drill/exec/store/openTSDB/OpenTSDBRecordReader.java
---
@@ -0,0 +1,263 @@
+/*
+ * 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.drill.exec.store.openTSDB;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
+import org.apache.drill.common.exceptions.ExecutionSetupException;
+import org.apache.drill.common.exceptions.UserException;
+import org.apache.drill.common.expression.SchemaPath;
+import org.apache.drill.common.logical.ValidationError;
+import org.apache.drill.common.types.TypeProtos;
+import org.apache.drill.common.types.TypeProtos.MajorType;
+import org.apache.drill.common.types.TypeProtos.MinorType;
+import org.apache.drill.common.types.Types;
+import org.apache.drill.exec.exception.SchemaChangeException;
+import org.apache.drill.exec.expr.TypeHelper;
+import org.apache.drill.exec.ops.OperatorContext;
+import org.apache.drill.exec.physical.impl.OutputMutator;
+import org.apache.drill.exec.record.MaterializedField;
+import org.apache.drill.exec.store.AbstractRecordReader;
+import org.apache.drill.exec.store.openTSDB.client.OpenTSDBTypes;
+import org.apache.drill.exec.store.openTSDB.client.Schema;
+import org.apache.drill.exec.store.openTSDB.client.Service;
+import org.apache.drill.exec.store.openTSDB.dto.ColumnDTO;
+import org.apache.drill.exec.store.openTSDB.dto.MetricDTO;
+import org.apache.drill.exec.vector.NullableFloat8Vector;
+import org.apache.drill.exec.vector.NullableTimeStampVector;
+import org.apache.drill.exec.vector.NullableVarCharVector;
+import org.apache.drill.exec.vector.ValueVector;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+public class OpenTSDBRecordReader extends AbstractRecordReader {
+
+ private static final Logger log =
LoggerFactory.getLogger(OpenTSDBRecordReader.class);
+
+ private static final Map<OpenTSDBTypes, MinorType> TYPES;
+
+ private Service db;
+
+ private Iterator<MetricDTO> tableIterator;
+ private OutputMutator output;
+ private ImmutableList<ProjectedColumnInfo> projectedCols;
+ private OpenTSDBSubScan.OpenTSDBSubScanSpec subScanSpec;
+
+ OpenTSDBRecordReader(Service client, OpenTSDBSubScan.OpenTSDBSubScanSpec
subScanSpec,
+ List<SchemaPath> projectedColumns) throws
IOException {
+ setColumns(projectedColumns);
+ this.db = client;
+ this.subScanSpec = subScanSpec;
+ db.setupQueryParameters(subScanSpec.getTableName());
+ log.debug("Scan spec: {}", subScanSpec);
+ }
+
+ @Override
+ public void setup(OperatorContext context, OutputMutator output) throws
ExecutionSetupException {
+ this.output = output;
+ Set<MetricDTO> tables = db.getTablesFromDB();
+ if (tables == null || tables.isEmpty()) {
+ throw new ValidationError(String.format("Table '%s' not found or
it's empty", subScanSpec.getTableName()));
+ }
+ this.tableIterator = tables.iterator();
+ }
+
+ @Override
+ public int next() {
+ try {
+ return processOpenTSDBTablesData();
+ } catch (SchemaChangeException e) {
+ log.info(e.toString());
--- End diff --
Sure, I will replace it.
> OpenTSDB storage plugin
> -----------------------
>
> Key: DRILL-5337
> URL: https://issues.apache.org/jira/browse/DRILL-5337
> Project: Apache Drill
> Issue Type: New Feature
> Components: Storage - Other
> Reporter: Dmitriy Gavrilovych
> Assignee: Dmitriy Gavrilovych
> Priority: Major
> Labels: features
> Fix For: 1.12.0
>
>
> Storage plugin for OpenTSDB
> The plugin uses REST API to work with TSDB.
> Expected queries are listed below:
> SELECT * FROM openTSDB.`warp.speed.test`;
> Return all elements from warp.speed.test table with default aggregator SUM
> SELECT * FROM openTSDB.`(metric=warp.speed.test)`;
> Return all elements from (metric=warp.speed.test) table as a previous query,
> but with alternative FROM syntax
> SELECT * FROM openTSDB.`(metric=warp.speed.test, aggregator=avg)`;
> Return all elements from warp.speed.test table, but with the custom aggregator
> SELECT `timestamp`, sum(`aggregated value`) FROM
> openTSDB.`(metric=warp.speed.test, aggregator=avg)` GROUP BY `timestamp`;
> Return aggregated and grouped value by standard drill functions from
> warp.speed.test table, but with the custom aggregator
> SELECT * FROM openTSDB.`(metric=warp.speed.test, downsample=5m-avg)`
> Return data limited by downsample
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