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This contains a set of API's that ease the database programming with Java, in both: JDBC and JPA Persisitnce).
/*
* Copyright 2002-2022 Dr. Jalal Kiswani.
* Email: [email protected]
* Check out https://smart-api.com for more details
*
* All the opensource projects of Dr. Jalal Kiswani are free for personal and academic use only,
* for commercial usage and support, please contact the author.
*
* 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 com.jk.data.backup;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import com.jk.core.logging.JKLogger;
import com.jk.core.logging.JKLoggerFactory;
import com.jk.core.util.JK;
// TODO: Auto-generated Javadoc
/**
* The Class MySqlUtil.
*/
public class MySqlUtil {
/** The logger. */
static JKLogger logger = JKLoggerFactory.getLogger(MySqlUtil.class);
/** The Constant EXPORT_UTIL_FILE_NAME. */
private static final Object EXPORT_UTIL_FILE_NAME = "mysqldump.exe";
/** The Constant IMPORT_UTIL_FILE_NAME. */
private static final String IMPORT_UTIL_FILE_NAME = "mysql.exe";
/**
* Execute.
*
* @param buffer the buffer
*/
private static void execute(final StringBuffer buffer) {
final String command = buffer.toString();
final String cmd[] = { "cmd", "/c", command };
Process process = null;
try {
process = Runtime.getRuntime().exec(cmd);
final BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
String line;
while ((line = reader.readLine()) != null) {
logger.debug(line);
}
if (process.exitValue() != 0) {
final BufferedReader buf = new BufferedReader(new InputStreamReader(process.getErrorStream()));
String errorValue = "";
while (errorValue != null) {
errorValue = buf.readLine();
logger.debug(errorValue);
}
buf.close();
logger.error("MySql Export failed with the following error code : ", process.exitValue());
throw new IOException(errorValue);
}
} catch (Exception e) {
JK.throww(e);
} finally {
if (process != null) {
process.destroy();
}
}
}
/**
* Export.
*
* @param info the info
*/
public static void export(final DatabaseInfo info) {
final StringBuffer buffer = new StringBuffer();
buffer.append(EXPORT_UTIL_FILE_NAME);
buffer.append(" --skip-opt ");
buffer.append("--add-drop-table ");
buffer.append("--create-options ");
buffer.append("--hex-blob");
buffer.append(" -h ");
buffer.append(info.getDatabaseHost());
buffer.append(" -p");
buffer.append(info.getDatabasePort());
buffer.append(" -u ");
buffer.append(info.getDatabaseUser());
buffer.append(" -p");
buffer.append(info.getDatabasePassword() + " ");
// String[] igonoredTbls={"reg_students","reg_student_eq_courses"};
// should read from cofig file
// for (String tblName: igonoredTbls) {
// buffer.append(" --ignore-table=");
// buffer.append(info.getDatabaseName()+"."+tblName);
// }
buffer.append(" " + info.getDatabaseName());
buffer.append(" >");
buffer.append("\"" + info.getFileName() + "\"");
logger.debug(buffer);
execute(buffer);
logger.debug("Done dump sql file : " + info.getFileName());
}
/**
* Import db.
*
* @param info the info
* @throws IOException Signals that an I/O exception has occurred.
*/
public static void importDb(final DatabaseInfo info) throws IOException {
final StringBuffer buffer = new StringBuffer();
buffer.append(IMPORT_UTIL_FILE_NAME);
buffer.append(" --user=");
buffer.append(info.getDatabaseUser());
buffer.append(" --password=");
buffer.append(info.getDatabasePassword());
buffer.append(" --host=");
buffer.append(info.getDatabaseHost());
buffer.append(" " + info.getDatabaseName());
buffer.append("<");
buffer.append("\"" + info.getFileName() + "\"");
logger.debug(buffer);
execute(buffer);
logger.debug("Done Import sql file : " + info.getFileName());
}
/**
* The main method.
*
* @param args the arguments
*/
public static void main(final String[] args) {
final DatabaseInfo info = new DatabaseInfo();
info.setDatabaseHost("server");
info.setDatabaseName("test-base-jo");
info.setDatabasePassword("jk-dev");
info.setDatabasePort(3306);
info.setDatabaseUser("root");
final String fileName = "c:\\app1-base-jo.sql";
info.setFileName(fileName);
export(info);
System.out.println("Export Done");
// CompressionUtil.compress(fileName, "c:/test-z.rar");
System.out.println("Compression done");
}
}