ColocateGroupName.java

// 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
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// 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.info;

import org.apache.doris.catalog.ColocateTableIndex;
import org.apache.doris.common.AnalysisException;
import org.apache.doris.common.ErrorCode;
import org.apache.doris.common.ErrorReport;
import org.apache.doris.qe.ConnectContext;

import com.google.common.base.Strings;

/**
 * ColocateGroupName
 */
public class ColocateGroupName {
    private String db;
    private String group;

    public ColocateGroupName(String db, String group) {
        this.db = db;
        this.group = group;
    }

    public String getDb() {
        return db;
    }

    public String getGroup() {
        return group;
    }

    /**
     * validate
     */
    public void validate(ConnectContext ctx) throws AnalysisException {
        if (ColocateTableIndex.GroupId.isGlobalGroupName(group)) {
            if (!Strings.isNullOrEmpty(db)) {
                throw new AnalysisException("group that name starts with `"
                    + ColocateTableIndex.GroupId.GLOBAL_COLOCATE_PREFIX + "`"
                    + " is a global group, it doesn't belong to any specific database");
            }
        } else {
            if (Strings.isNullOrEmpty(db)) {
                if (Strings.isNullOrEmpty(ctx.getDatabase())) {
                    ErrorReport.reportAnalysisException(ErrorCode.ERR_NO_DB_ERROR);
                }
                db = ctx.getDatabase();
            }
        }
    }

    /**
     * toSql
     */
    public String toSql() {
        StringBuilder sb = new StringBuilder();
        if (!Strings.isNullOrEmpty(db)) {
            sb.append("`").append(db).append("`.");
        }
        sb.append("`").append(group).append("`");
        return sb.toString();
    }
}