com.antsdb.saltedfish.sql.SessionParameters.java Source code

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Here is the source code for com.antsdb.saltedfish.sql.SessionParameters.java

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/*-------------------------------------------------------------------------------------------------
 _______ __   _ _______ _______ ______  ______
 |_____| | \  |    |    |______ |     \ |_____]
 |     | |  \_|    |    ______| |_____/ |_____]
    
 Copyright (c) 2016, antsdb.com and/or its affiliates. All rights reserved. *-xguo0<@
    
 This program is free software: you can redistribute it and/or modify it under the terms of the
 GNU Affero General Public License, version 3, as published by the Free Software Foundation.
    
 You should have received a copy of the GNU Affero General Public License along with this program.
 If not, see <https://www.gnu.org/licenses/agpl-3.0.txt>
-------------------------------------------------------------------------------------------------*/
package com.antsdb.saltedfish.sql;

import java.util.Collections;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.apache.commons.lang.StringUtils;

/**
 * 
 * @author *-xguo0<@
 */
public class SessionParameters {
    Map<String, Object> parameters = new ConcurrentHashMap<String, Object>();
    boolean no_auto_value_on_zero;
    // oracle default is 30 minutes
    // mysql default is 50 seconds. innodb_lock_wait_timeout
    int lock_timeout = 50 * 1000;

    public Map<String, Object> getParameters() {
        return Collections.unmodifiableMap(this.parameters);
    }

    public void setParameter(String name, Object value) {
        String key = name.toLowerCase();
        if (value != null) {
            this.parameters.put(key, value);
        } else {
            this.parameters.remove(key);
        }
        if (key.equals("sql_mode")) {
            parseSqlModes((String) value);
        } else if (key.equals("ddl_lock_timeout") || key.equals("innodb_lock_wait_timeout")) {
            if (value != null) {
                this.lock_timeout = ((Number) value).intValue() * 1000;
            } else {
                this.lock_timeout = 50 * 1000;
            }
        }
    }

    private void parseSqlModes(String value) {
        this.no_auto_value_on_zero = false;
        if (StringUtils.isEmpty(value)) {
            return;
        }
        for (String mode : StringUtils.split(value, ',')) {
            if (mode.equals("NO_AUTO_VALUE_ON_ZERO")) {
                this.no_auto_value_on_zero = true;
            } else if (mode.equals("STRICT_TRANS_TABLES")) {
            } else {
                throw new OrcaException("unknown sql mode " + mode);
            }
        }
    }

    /**
     * {@link} http://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sqlmode_no_auto_value_on_zero   
     * @return
     */
    public boolean isNoAutoValueOnZero() {
        return this.no_auto_value_on_zero;
    }

    public int getLockTimeout() {
        return this.lock_timeout;
    }

    public Object get(String name) {
        name = name.toLowerCase();
        return this.parameters.get(name);
    }
}