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[Enhancement] (nereids)implement showProcCommand in nereids (#43146)
Issue Number: close #42750
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106 changes: 106 additions & 0 deletions
106
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/ShowProcCommand.java
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| // 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. | ||
|
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| package org.apache.doris.nereids.trees.plans.commands; | ||
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| import org.apache.doris.analysis.RedirectStatus; | ||
| import org.apache.doris.catalog.Column; | ||
| import org.apache.doris.catalog.Env; | ||
| import org.apache.doris.catalog.ScalarType; | ||
| import org.apache.doris.common.AnalysisException; | ||
| import org.apache.doris.common.ErrorCode; | ||
| import org.apache.doris.common.ErrorReport; | ||
| import org.apache.doris.common.proc.ProcNodeInterface; | ||
| import org.apache.doris.common.proc.ProcResult; | ||
| import org.apache.doris.common.proc.ProcService; | ||
| import org.apache.doris.mysql.privilege.PrivPredicate; | ||
| import org.apache.doris.nereids.trees.plans.PlanType; | ||
| import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor; | ||
| import org.apache.doris.qe.ConnectContext; | ||
| import org.apache.doris.qe.ShowResultSet; | ||
| import org.apache.doris.qe.ShowResultSetMetaData; | ||
| import org.apache.doris.qe.StmtExecutor; | ||
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| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
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| import java.util.List; | ||
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| /** | ||
| * show proc command | ||
| */ | ||
| public class ShowProcCommand extends ShowCommand { | ||
| public static final Logger LOG = LogManager.getLogger(ShowProcCommand.class); | ||
| private final String path; | ||
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| /** | ||
| * constructor | ||
| */ | ||
| public ShowProcCommand(String path) { | ||
| super(PlanType.SHOW_PROC_COMMAND); | ||
| this.path = path; | ||
| } | ||
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| /** | ||
| * get meta for show proc | ||
| */ | ||
| public ShowResultSetMetaData getMetaData(ProcNodeInterface procNode) { | ||
| ShowResultSetMetaData.Builder builder = ShowResultSetMetaData.builder(); | ||
| ProcResult result = null; | ||
| try { | ||
| result = procNode.fetchResult(); | ||
| } catch (AnalysisException e) { | ||
| return builder.build(); | ||
| } | ||
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| for (String col : result.getColumnNames()) { | ||
| builder.addColumn(new Column(col, ScalarType.createVarchar(30))); | ||
| } | ||
| return builder.build(); | ||
| } | ||
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| private ShowResultSet handleShowProc(ConnectContext ctx, StmtExecutor executor) throws Exception { | ||
| if (!Env.getCurrentEnv().getAccessManager() | ||
| .checkGlobalPriv(ctx, PrivPredicate.ADMIN_OR_NODE)) { | ||
| ErrorReport.reportAnalysisException(ErrorCode.ERR_SPECIFIC_ACCESS_DENIED_ERROR, "ADMIN"); | ||
| } | ||
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| ProcNodeInterface procNode = ProcService.getInstance().open(path); | ||
| List<List<String>> finalRows = procNode.fetchResult().getRows(); | ||
| ShowResultSet resultSet = new ShowResultSet(getMetaData(procNode), finalRows); | ||
| return resultSet; | ||
| } | ||
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| @Override | ||
| public ShowResultSet doRun(ConnectContext ctx, StmtExecutor executor) throws Exception { | ||
| return handleShowProc(ctx, executor); | ||
| } | ||
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| @Override | ||
| public <R, C> R accept(PlanVisitor<R, C> visitor, C context) { | ||
| return visitor.visitShowProcCommand(this, context); | ||
| } | ||
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| @Override | ||
| public RedirectStatus toRedirectStatus() { | ||
| if (ConnectContext.get().getSessionVariable().getForwardToMaster()) { | ||
| return RedirectStatus.FORWARD_NO_SYNC; | ||
| } else { | ||
| return RedirectStatus.NO_FORWARD; | ||
| } | ||
| } | ||
| } |
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22 changes: 22 additions & 0 deletions
22
regression-test/suites/nereids_p0/ddl/show/show_proc_nereids.groovy
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| @@ -0,0 +1,22 @@ | ||
| // 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. | ||
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| suite("show_proc_nereids") { | ||
| // can not use qt command since the output change based on cluster and backend ip | ||
| checkNereidsExecute("""show proc '/diagnose/cluster_balance';""") | ||
| checkNereidsExecute("""show proc '/backends';""") | ||
| } |