This is an automated email from the ASF dual-hosted git repository. hui pushed a commit to branch lmh/clearCache in repository https://gitbox.apache.org/repos/asf/iotdb.git
commit 6168c6d6b5d4b41698d6eb75b1a864f4569aaaa0 Author: Minghui Liu <[email protected]> AuthorDate: Wed Jun 29 17:39:47 2022 +0800 add ClearCacheStatement & sql parser --- .../iotdb/db/mpp/plan/parser/ASTVisitor.java | 8 ++++ .../db/mpp/plan/statement/StatementVisitor.java | 5 +++ .../plan/statement/sys/ClearCacheStatement.java | 45 ++++++++++++++++++++++ 3 files changed, 58 insertions(+) diff --git a/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java b/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java index 4418d11349..631776b39a 100644 --- a/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java +++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/parser/ASTVisitor.java @@ -103,6 +103,7 @@ import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTTLStatement; import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTimeSeriesStatement; import org.apache.iotdb.db.mpp.plan.statement.metadata.UnSetTTLStatement; import org.apache.iotdb.db.mpp.plan.statement.sys.AuthorStatement; +import org.apache.iotdb.db.mpp.plan.statement.sys.ClearCacheStatement; import org.apache.iotdb.db.mpp.plan.statement.sys.ExplainStatement; import org.apache.iotdb.db.mpp.plan.statement.sys.FlushStatement; import org.apache.iotdb.db.qp.constant.SQLConstant; @@ -2272,4 +2273,11 @@ public class ASTVisitor extends IoTDBSqlParserBaseVisitor<Statement> { } return showRegionStatement; } + + // Clear Cache + + @Override + public Statement visitClearCache(IoTDBSqlParser.ClearCacheContext ctx) { + return new ClearCacheStatement(); + } } diff --git a/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java index 7f28d05552..a8c94c755a 100644 --- a/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java +++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/StatementVisitor.java @@ -56,6 +56,7 @@ import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTTLStatement; import org.apache.iotdb.db.mpp.plan.statement.metadata.ShowTimeSeriesStatement; import org.apache.iotdb.db.mpp.plan.statement.metadata.UnSetTTLStatement; import org.apache.iotdb.db.mpp.plan.statement.sys.AuthorStatement; +import org.apache.iotdb.db.mpp.plan.statement.sys.ClearCacheStatement; import org.apache.iotdb.db.mpp.plan.statement.sys.ExplainStatement; import org.apache.iotdb.db.mpp.plan.statement.sys.FlushStatement; @@ -256,4 +257,8 @@ public abstract class StatementVisitor<R, C> { public R visitShowRegion(ShowRegionStatement showRegionStatement, C context) { return visitStatement(showRegionStatement, context); } + + public R visitClearCache(ClearCacheStatement clearCacheStatement, C context) { + return visitStatement(clearCacheStatement, context); + } } diff --git a/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/sys/ClearCacheStatement.java b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/sys/ClearCacheStatement.java new file mode 100644 index 0000000000..00ed62fd76 --- /dev/null +++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/statement/sys/ClearCacheStatement.java @@ -0,0 +1,45 @@ +/* + * 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.iotdb.db.mpp.plan.statement.sys; + +import org.apache.iotdb.commons.path.PartialPath; +import org.apache.iotdb.db.mpp.plan.constant.StatementType; +import org.apache.iotdb.db.mpp.plan.statement.Statement; +import org.apache.iotdb.db.mpp.plan.statement.StatementVisitor; + +import java.util.Collections; +import java.util.List; + +public class ClearCacheStatement extends Statement { + + public ClearCacheStatement() { + setType(StatementType.CLEAR_CACHE); + } + + @Override + public List<? extends PartialPath> getPaths() { + return Collections.emptyList(); + } + + @Override + public <R, C> R accept(StatementVisitor<R, C> visitor, C context) { + return visitor.visitClearCache(this, context); + } +}
