org.apache.hive.hplsql.Conf.java Source code

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Here is the source code for org.apache.hive.hplsql.Conf.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.hive.hplsql;

import java.net.URL;
import java.util.HashMap;

import org.apache.hadoop.conf.Configuration;
import org.apache.hive.hplsql.Exec.OnError;

/**
 * HPL/SQL run-time configuration
 */
public class Conf extends Configuration {

    public static final String SITE_XML = "hplsql-site.xml";
    public static final String DOT_HPLSQLRC = ".hplsqlrc";
    public static final String HPLSQLRC = "hplsqlrc";
    public static final String HPLSQL_LOCALS_SQL = "hplsql_locals.sql";

    public static final String CONN_CONVERT = "hplsql.conn.convert.";
    public static final String CONN_DEFAULT = "hplsql.conn.default";
    public static final String DUAL_TABLE = "hplsql.dual.table";
    public static final String INSERT_VALUES = "hplsql.insert.values";
    public static final String ONERROR = "hplsql.onerror";
    public static final String TEMP_TABLES = "hplsql.temp.tables";
    public static final String TEMP_TABLES_SCHEMA = "hplsql.temp.tables.schema";
    public static final String TEMP_TABLES_LOCATION = "hplsql.temp.tables.location";

    public static final String TRUE = "true";
    public static final String FALSE = "false";
    public static final String YES = "yes";
    public static final String NO = "no";

    public enum InsertValues {
        NATIVE, SELECT
    };

    public enum TempTables {
        NATIVE, MANAGED
    };

    public String defaultConnection;

    OnError onError = OnError.EXCEPTION;
    InsertValues insertValues = InsertValues.NATIVE;
    TempTables tempTables = TempTables.NATIVE;

    String dualTable = null;

    String tempTablesSchema = "";
    String tempTablesLocation = "/tmp/hplsql";

    HashMap<String, Boolean> connConvert = new HashMap<String, Boolean>();

    /**
     * Set an option
     */
    public void setOption(String key, String value) {
        if (key.startsWith(CONN_CONVERT)) {
            setConnectionConvert(key.substring(19), value);
        } else if (key.compareToIgnoreCase(CONN_DEFAULT) == 0) {
            defaultConnection = value;
        } else if (key.compareToIgnoreCase(DUAL_TABLE) == 0) {
            dualTable = value;
        } else if (key.compareToIgnoreCase(INSERT_VALUES) == 0) {
            setInsertValues(value);
        } else if (key.compareToIgnoreCase(ONERROR) == 0) {
            setOnError(value);
        } else if (key.compareToIgnoreCase(TEMP_TABLES) == 0) {
            setTempTables(value);
        } else if (key.compareToIgnoreCase(TEMP_TABLES_SCHEMA) == 0) {
            tempTablesSchema = value;
        } else if (key.compareToIgnoreCase(TEMP_TABLES_LOCATION) == 0) {
            tempTablesLocation = value;
        }
    }

    /**
     * Set hplsql.insert.values option
     */
    private void setInsertValues(String value) {
        if (value.compareToIgnoreCase("NATIVE") == 0) {
            insertValues = InsertValues.NATIVE;
        } else if (value.compareToIgnoreCase("SELECT") == 0) {
            insertValues = InsertValues.SELECT;
        }
    }

    /**
     * Set hplsql.temp.tables option
     */
    private void setTempTables(String value) {
        if (value.compareToIgnoreCase("NATIVE") == 0) {
            tempTables = TempTables.NATIVE;
        } else if (value.compareToIgnoreCase("MANAGED") == 0) {
            tempTables = TempTables.MANAGED;
        }
    }

    /**
     * Set error handling approach
     */
    private void setOnError(String value) {
        if (value.compareToIgnoreCase("EXCEPTION") == 0) {
            onError = OnError.EXCEPTION;
        } else if (value.compareToIgnoreCase("SETERROR") == 0) {
            onError = OnError.SETERROR;
        }
        if (value.compareToIgnoreCase("STOP") == 0) {
            onError = OnError.STOP;
        }
    }

    /**
     * Set whether convert or not SQL for the specified connection profile
     */
    void setConnectionConvert(String name, String value) {
        boolean convert = false;
        if (value.compareToIgnoreCase(TRUE) == 0 || value.compareToIgnoreCase(YES) == 0) {
            convert = true;
        }
        connConvert.put(name, convert);
    }

    /**
     * Get whether convert or not SQL for the specified connection profile
     */
    boolean getConnectionConvert(String name) {
        Boolean convert = connConvert.get(name);
        if (convert != null) {
            return convert.booleanValue();
        }
        return false;
    }

    /**
     * Load parameters
     */
    public void init() {
        addResource(SITE_XML);
    }

    /**
     * Get the location of the configuration file
     */
    public String getLocation() {
        URL url = getResource(SITE_XML);
        if (url != null) {
            return url.toString();
        }
        return "";
    }
}