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https://issues.apache.org/jira/browse/DRILL-5956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17109662#comment-17109662
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ASF GitHub Bot commented on DRILL-5956:
---------------------------------------
akkapur commented on a change in pull request #1888:
URL: https://github.com/apache/drill/pull/1888#discussion_r426306954
##########
File path:
contrib/storage-druid/src/main/java/org/apache/drill/exec/store/druid/DruidFilterBuilder.java
##########
@@ -0,0 +1,199 @@
+/*
+ * 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.druid;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import org.apache.drill.common.FunctionNames;
+import org.apache.drill.common.expression.BooleanOperator;
+import org.apache.drill.common.expression.FunctionCall;
+import org.apache.drill.common.expression.LogicalExpression;
+import org.apache.drill.common.expression.visitors.AbstractExprVisitor;
+import org.apache.drill.exec.store.druid.common.DruidFilter;
+import org.apache.drill.exec.store.druid.common.DruidUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.List;
+
+public class DruidFilterBuilder extends
+ AbstractExprVisitor<DruidScanSpec, Void, RuntimeException> {
+
+ private static final Logger logger =
LoggerFactory.getLogger(DruidFilterBuilder.class);
+
+ private final DruidGroupScan groupScan;
+ private final LogicalExpression le;
+ private final DruidScanSpecBuilder druidScanSpecBuilder;
+ private boolean allExpressionsConverted = true;
+
+ public DruidFilterBuilder(DruidGroupScan groupScan,
+ LogicalExpression conditionExp) {
+ this.groupScan = groupScan;
+ this.le = conditionExp;
+ this.druidScanSpecBuilder = new DruidScanSpecBuilder();
+ }
+
+ public DruidScanSpec parseTree() throws JsonProcessingException {
Review comment:
Fixed.
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> Add Storage Plugin for Apache Druid
> -----------------------------------
>
> Key: DRILL-5956
> URL: https://issues.apache.org/jira/browse/DRILL-5956
> Project: Apache Drill
> Issue Type: Wish
> Components: Storage - Other
> Reporter: Jiaqi Liu
> Priority: Major
> Labels: Enhancement, Storage-Plugin
> Fix For: 1.18.0
>
>
> As more and more companies are using Druid for mission-critical industrial
> products, Drill could gain much more popularity with Druid as one of its
> supported storage plugin so that uses could easily bind Druid cluster to
> running Drill instance
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