com.github.mengweijin.flyway.database.gbase8s.Gbase8sDatabase Maven / Gradle / Ivy

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package com.github.mengweijin.flyway.database.gbase8s;

import com.github.mengweijin.flyway.ISupportDatabase;
import org.flywaydb.core.api.configuration.Configuration;
import org.flywaydb.core.internal.database.base.Database;
import org.flywaydb.core.internal.database.base.Table;
import org.flywaydb.core.internal.jdbc.JdbcConnectionFactory;
import org.flywaydb.core.internal.jdbc.StatementInterceptor;

import java.sql.Connection;
import java.sql.SQLException;

/**
 * Gbase8s database.
 * @author mengweijin
 */
public class Gbase8sDatabase extends Database implements ISupportDatabase {

    public Gbase8sDatabase(Configuration configuration, JdbcConnectionFactory jdbcConnectionFactory, StatementInterceptor statementInterceptor) {
        super(configuration, jdbcConnectionFactory, statementInterceptor);
    }

    @Override
    protected Gbase8sConnection doGetConnection(Connection connection) {
        return new Gbase8sConnection(this, connection);
    }

    @Override
    public boolean supportsChangingCurrentSchema() {
        return true;
    }

    @Override
    public String doQuote(String identifier) {
        return getOpenQuote() + identifier + getCloseQuote();
    }

    @Override
    public void ensureSupported() {
        ensureDatabaseIsRecentEnough("8");
        recommendFlywayUpgradeIfNecessary("8.8");
    }

    @Override
    public void ensureSupported(Configuration configuration) {
        ensureDatabaseIsRecentEnough("8");
        recommendFlywayUpgradeIfNecessary("8.8");
    }

    @Override
    public String getRawCreateScript(Table table, boolean baseline) {
        String tablespace = configuration.getTablespace() == null
                ? ""
                : " IN \"" + configuration.getTablespace() + "\"";

        return "CREATE TABLE " + table + " (\n" +
                "    installed_rank INT NOT NULL,\n" +
                "    version VARCHAR(50),\n" +
                "    description VARCHAR(200) NOT NULL,\n" +
                "    type VARCHAR(20) NOT NULL,\n" +
                "    script LVARCHAR(1000) NOT NULL,\n" +
                "    checksum INT,\n" +
                "    installed_by VARCHAR(100) NOT NULL,\n" +
                "    installed_on DATETIME YEAR TO FRACTION(3) DEFAULT CURRENT YEAR TO FRACTION(3) NOT NULL,\n" +
                "    execution_time INT NOT NULL,\n" +
                "    success SMALLINT NOT NULL\n" +
                ")" + tablespace + ";\n" +
                (baseline ? getBaselineStatement(table) + ";\n" : "") +
                "ALTER TABLE " + table + " ADD CONSTRAINT CHECK (success in (0,1)) CONSTRAINT " + table.getName() + "_s;\n" +
                "ALTER TABLE " + table + " ADD CONSTRAINT PRIMARY KEY (installed_rank) CONSTRAINT " + table.getName() + "_pk;\n" +
                "CREATE INDEX " + table.getName() + "_s_idx ON " + table + " (success);";
    }

    @Override
    protected String doGetCurrentUser() throws SQLException {
        return getJdbcMetaData().getUserName();
    }

    @Override
    public boolean supportsDdlTransactions() {
        return true;
    }

    @Override
    public String getBooleanTrue() {
        return "1";
    }

    @Override
    public String getBooleanFalse() {
        return "0";
    }

    @Override
    public String getOpenQuote() {
        return "";
    }

    @Override
    public String getCloseQuote() {
        return "";
    }

    @Override
    public boolean catalogIsSchema() {
        return false;
    }

    @Override
    public boolean useSingleConnection() {
        return false;
    }

}