eldenmoon commented on code in PR #35318: URL: https://github.com/apache/doris/pull/35318#discussion_r1620467941
########## fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/PreparedCommand.java: ########## @@ -0,0 +1,128 @@ +// 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.doris.nereids.trees.plans.commands; + +import org.apache.doris.mysql.MysqlCommand; +import org.apache.doris.nereids.trees.expressions.Placeholder; +import org.apache.doris.nereids.trees.plans.PlanType; +import org.apache.doris.nereids.trees.plans.logical.LogicalPlan; +import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor; +import org.apache.doris.qe.ConnectContext; +import org.apache.doris.qe.OriginStatement; +import org.apache.doris.qe.PreparedStatementContext; +import org.apache.doris.qe.StmtExecutor; + +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; + +import java.util.ArrayList; +import java.util.List; + +/** + * Prepared Statement + */ +public class PreparedCommand extends Command { + private static final Logger LOG = LogManager.getLogger(StmtExecutor.class); + + protected List<Placeholder> params = new ArrayList<>(); + private final LogicalPlan inner; + + private final String stmtName; + + private final OriginStatement originalStmt; + + /** + * constructor + * @param name the statement name which represents statement id for prepared statement + * @param plan the inner statement + * @param placeholders the parameters for this prepared statement + * @param originalStmt original statement from StmtExecutor + */ + public PreparedCommand(String name, LogicalPlan plan, List<Placeholder> placeholders, + OriginStatement originalStmt) { + super(PlanType.UNKNOWN); + this.inner = plan; + if (placeholders != null) { + this.params = placeholders; + } + this.stmtName = name; + this.originalStmt = originalStmt; + } + + public String getName() { + return stmtName; + } + + public List<Placeholder> params() { + return params; + } + + public int getParamLen() { + if (params == null) { + return 0; + } + return params.size(); + } + + public LogicalPlan getInnerPlan() { + return inner; + } + + public OriginStatement getOriginalStmt() { + return originalStmt; + } + + /** + * return the labels of paramters + */ + public List<String> getLabels() { + List<String> labels = new ArrayList<>(); + if (params == null) { + return labels; + } + for (Placeholder parameter : params) { + labels.add("$" + parameter.getExprId().asInt()); + } + return labels; + } + + // register prepared statement with attached statement id + @Override + public void run(ConnectContext ctx, StmtExecutor executor) throws Exception { + List<String> labels = getLabels(); + // register prepareStmt + if (LOG.isDebugEnabled()) { + LOG.debug("add prepared statement {}, isBinaryProtocol {}", + stmtName, ctx.getCommand() == MysqlCommand.COM_STMT_PREPARE); + } + ctx.addPreparedStatementContext(stmtName, + new PreparedStatementContext(this, ctx, ctx.getStatementContext(), stmtName)); + if (ctx.getCommand() == MysqlCommand.COM_STMT_PREPARE) { + executor.sendStmtPrepareOK((int) ctx.getStmtId(), labels); + } Review Comment: COM_STMT_PREPARE need to send such packet, otherwise it maybe text protocol -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
