org.apache.drill.exec.store.openTSDB.Util.java Source code

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Here is the source code for org.apache.drill.exec.store.openTSDB.Util.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.
 */
package org.apache.drill.exec.store.openTSDB;

import com.google.common.base.Splitter;
import org.apache.drill.common.exceptions.UserException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

public class Util {

    private static final Logger log = LoggerFactory.getLogger(Util.class);

    /**
     * Parse FROM parameters to Map representation
     *
     * @param rowData with this syntax (metric=warp.speed.test)
     * @return Map with params key: metric, value: warp.speed.test
     */
    public static Map<String, String> fromRowData(String rowData) {
        try {
            String fromRowData = rowData.replaceAll("[()]", "");
            return Splitter.on(",").trimResults().omitEmptyStrings().withKeyValueSeparator("=").split(fromRowData);
        } catch (IllegalArgumentException e) {
            throw UserException.validationError().message(String.format("Syntax error in the query %s", rowData))
                    .build(log);
        }
    }

    /**
     * @param name Metric name
     * @return Valid metric name
     */
    public static String getValidTableName(String name) {
        if (!isTableNameValid(name)) {
            name = fromRowData(name).get("metric");
        }
        return name;
    }

    /**
     * @param name Metric name
     * @return true if name is valid
     */
    public static boolean isTableNameValid(String name) {
        return !name.contains("=");
    }
}