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[![Contributors][contributors-shield]][contributors-url]
[![Forks][forks-shield]][forks-url]
[![Stargazers][stars-shield]][stars-url]
[![Issues][issues-shield]][issues-url]
[![MIT License][license-shield]][license-url]
<br />
<p align="center">
<a href="https://github.com/germannewsmaker/sqltoolkit">
<img src="https://i.imgur.com/BAvJgQN.png" alt="Logo" width="80" height="80">
</a>
</p>
<h3 align="center">MySQL Toolkit</h3>
## About The Project
This is a small project for quickly managing a MySQL database in Java. It makes everyday life with a database much easier.
### Installation
1. Clone the repo
```sh
git clone https://github.com/germannewsmaker/sqltoolkit.git
```
2. Move the project into a package of your project (in most cases "sql")
3. Ready! Have fun
#### Maven comming soon
### Usage Examples
1. Create a connection
- Example of a constructor without optional specifications
```java
MySQLConnection connection = new MySQLConnection(hostname, username, password, database).connect();
```
- Example of a constructor with setting the logging level
```java
MySQLConnection connection = new MySQLConnection(hostname, username, password, database, LogLevelType.ALL).connect();
```
- Example of a constructor with optional login parameters
```java
MySQLConnection connection = new MySQLConnection(hostname, username, password, database, LoginParam.AUTO_RECONNECT, LoginParam.NO_SSL).connect();
```
#### Logging Levels
- NONE - Sends nothing
- LOW - Sends Warnings & Errors
- ALL - Sends Infos, Warnings & Errors
#### Login Parameters
- DEFAULT *(useSSL=false&autoReconnect=true&useUnicode=yes&characterEncoding=UTF-8&useTimezone=true&serverTimezone=UTC)*
- NO_SSL *(useSSL=false)*
- USE_SSL *(useSSL=true)*
- AUTO_RECONNECT *(autoReconnect=true)*
- UTF8_ENCODING *(characterEncoding=UTF-8)*
- USE_UNICODE *(useUnicode=yes)*
- USE_TIMEZONE *(useTimezone=true)*
- TIMEZONE_UTC *(serverTimezone=UTC)*
2. Perform a standard SQL query
- Get a ResultSet
```java
connection.getResultSet("default query", "parameters");
```
- Perform an update
```java
connection.update("query", "parameters");
```
3. Get something from a table with managers
1. Getting a Result (For one result)
```java
String value = connection.getResult("query", "parameters")
.getString("column");
```
2. Getting Results (For more than one)
```java
ArrayList<String> list = connection.getResult("query", "parameters")
.getList("column");
```
3. Choosing Results
```java
connection
.selectFrom("table")
.where("column", "value")
.limit(10)
.getResult();
```
4. Choosing Results + Print the current statement
```java
connection.select()
.from("table")
.where("column", "value")
.add("LIMIT 2,5")
.printStatement();
```
4. Perform an update using managers
1. Update a Table
```java
connection
.update()
.toTable("table")
.where("column", "value")
.set("column", "newValue")
.update();
```
2. Generate a Table
```java
connection
.update()
.generateTable("table")
.useID()
.addField(new SQLField(SQLType.STRING, "column", 999))
.addField(new SQLField(SQLType.STRING, "column2", 25))
.create();
```
## License
Distributed under the MIT License. See `LICENSE` for more information.
## End
Currently there are not many features yet, so feel free to write me some suggestions!
[contributors-shield]: https://img.shields.io/github/contributors/germannewsmaker/sqltoolkit.svg?style=for-the-badge
[contributors-url]: https://github.com/germannewsmaker/sqltoolkit/graphs/contributors
[forks-shield]: https://img.shields.io/github/forks/germannewsmaker/sqltoolkit.svg?style=for-the-badge
[forks-url]: https://github.com/germannewsmaker/sqltoolkit/network/members
[stars-shield]: https://img.shields.io/github/stars/germannewsmaker/sqltoolkit.svg?style=for-the-badge
[stars-url]: https://github.com/germannewsmaker/sqltoolkit/stargazers
[issues-shield]: https://img.shields.io/github/issues/germannewsmaker/sqltoolkit.svg?style=for-the-badge
[issues-url]: https://github.com/germannewsmaker/sqltoolkit/issues
[license-shield]: https://img.shields.io/github/license/germannewsmaker/sqltoolkit.svg?style=for-the-badge
[license-url]: https://github.com/germannewsmaker/sqltoolkit/blob/master/LICENSE.txt

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package drivers;
import manager.ResultManager;
import manager.DataBaseSelection;
import manager.UpdateManager;
import types.LogLevelType;
import types.LoginParam;
import java.sql.*;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class MySQLConnection {
private final String hostname;
private final String username;
private final String password;
private final String database;
private String tablePrefix = "";
private String tablePrefixVariable = "";
private String connectString = "";
public static Connection con;
private final SqlLogManager sqlLogManager;
/**
* Update the Connection String
* @param loginParams New login parameters
* @return this class
*/
public MySQLConnection updateConnectString(LoginParam... loginParams) {
this.connectString = getConnectionString(loginParams);
return this;
}
/**
* Set the Connection String
* @param tablePrefixVariable New table prefix variable
* @return this class
*/
public MySQLConnection setTablePrefixVariable(String tablePrefixVariable) {
this.tablePrefixVariable = tablePrefixVariable;
return this;
}
/**
* Set the current table Prefix
* @param tablePrefix New table prefix
* @return this class
*/
public MySQLConnection setTablePrefix(String tablePrefix) {
this.tablePrefix = tablePrefix;
return this;
}
/**
* Get the current table Prefix
* @return the prefix
*/
public String getTablePrefix() {
return tablePrefix;
}
/**
* Get the current jdbc connection string for mysql
* @param loginParams login parameters
* @return the string
*/
private String getConnectionString(LoginParam[] loginParams) {
boolean used = false;StringBuilder currentString = new StringBuilder();
for (LoginParam param : loginParams) {
String currentChar = (used) ? "&" : "?";used = true;
currentString.append(currentChar).append(param.getValue());
}
return currentString.toString();
}
/**
* Check if you are connected
* @return status of the connection
*/
public boolean isConnected() {
return (con != null);
}
/**
* Get the SQL Log Manager and adjust it how you like it
* @return the SQL Log Manager
*/
public SqlLogManager getLogManager() {
return sqlLogManager;
}
/**
* Basic constructor for the Connection
* @param hostname MySQL server hostname
* @param username MySQL server username
* @param password MySQL server password
* @param database MySQL server database
* @param logLevel Logging level
* @param loginParams Login parameters
*/
public MySQLConnection(String hostname, String username, String password, String database, LogLevelType logLevel, LoginParam... loginParams) {
this.hostname = hostname;
this.username = username;
this.password = password;
this.database = database;
this.sqlLogManager = new SqlLogManager();
updateConnectString(loginParams);
setLogLevelType(logLevel);
}
/**
* Basic constructor for the Connection
* @param hostname MySQL server hostname
* @param username MySQL server username
* @param password MySQL server password
* @param database MySQL server database
* @param loginParams Login parameters
*/
public MySQLConnection(String hostname, String username, String password, String database, LoginParam... loginParams) {
this.hostname = hostname;
this.username = username;
this.password = password;
this.database = database;
this.sqlLogManager = new SqlLogManager();
updateConnectString(loginParams);
setLogLevelType(LogLevelType.NONE);
}
/**
* Set a new logging level
* @param logLevelType New logging level
* @return this class
*/
public MySQLConnection setLogLevelType(LogLevelType logLevelType) {
this.sqlLogManager.setLogLevelType(logLevelType);
return this;
}
/**
* Get a result from your server
* @param query Search query
* @param params Optional parameters
* @return ResultSet
*/
public ResultSet getResultSet(String query, Object... params) {
query = (tablePrefix.isEmpty()) ? "" : query.replace((tablePrefixVariable.isEmpty()) ? "$tp" : tablePrefixVariable, tablePrefix);
try { int start = 1;
PreparedStatement ps = con.prepareStatement(query);
for (Object current : params) { ps.setObject(start, current);start++; }
return ps.executeQuery();
} catch (Exception err) {
sqlLogManager.sendError(err.getMessage());
}
return null;
}
/**
* Get a result from your server (get the Manager)
* @param query Search query
* @param params Optional parameters
* @return ResultManager
*/
public ResultManager getResult(String query, Object... params) {
return new ResultManager(getResultSet(query, params), sqlLogManager);
}
/**
* Update something on your server by query
* @param query Update query
* @param params Optional parameters
* @return this class
*/
public MySQLConnection update(String query, Object... params) {
query = (tablePrefix.isEmpty()) ? "" : query.replace((tablePrefixVariable.isEmpty()) ? "$tp" : tablePrefixVariable, tablePrefix);
try { int start = 1;
PreparedStatement ps = con.prepareStatement(query);
for (Object current : params) { ps.setObject(start, current);start++; }
ps.executeUpdate();
} catch (Exception err) { err.printStackTrace(); }
return this;
}
/**
* Get the update manager for easier updating
* @return Update manager
*/
public UpdateManager update() {
return new UpdateManager(this);
}
/**
* Get the update manager for easier updating (pre filled table)
* @param tableName The name of the table
* @return Update manager
*/
public UpdateManager updateTable(String tableName) {
return new UpdateManager(this, tableName);
}
/**
* Get the Database Selection for easier selection of tables (pre filled table)
* @param tableName The name of the table
* @return DatabaseSelection
*/
public DataBaseSelection selectFrom(String tableName) {
return new DataBaseSelection(this, tableName);
}
/**
* Get the Database Selection for easier selection of tables
* @return DatabaseSelection
*/
public DataBaseSelection select() {
return new DataBaseSelection(this);
}
/**
* Connect with your MySQL server
* @return this class
*/
public MySQLConnection connect() {
if (!isConnected()) { try {
sqlLogManager.sendInfo("Connecting to " + hostname + " with user " + username + " to database " + database);
Class.forName("com.mysql.cj.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://" + hostname + "/" + database + connectString, username, password);
sqlLogManager.sendInfo("Connection established");
} catch (Exception exception) {
if (exception.getMessage().equals("jdbc.Driver"))
sqlLogManager.sendError("MySQL driver not found! Check your dependencies or install the JDBC Mysql Driver from https://dev.mysql.com/downloads/file/?id=498587");
else if (exception.getMessage().contains("has not received any packets")) sqlLogManager.sendError("No packets received from the server.");
else if (exception.getMessage().contains("denied for user")) sqlLogManager.sendError("Wrong username/password");
else sqlLogManager.sendError(exception.getMessage());
}
} else sqlLogManager.sendWarning("Already connected");
return this;
}
/**
* Disconnect from your MySQL Server
* @return this class
*/
public MySQLConnection disconnect() {
if (isConnected()) { try { con.close();con = null;sqlLogManager.sendInfo("Connection closed");
} catch (Exception err) { sqlLogManager.sendError(err.getMessage()); }
} else sqlLogManager.sendWarning("Not connected. Please connect first");
return this;
}
}

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package drivers;
import types.LogLevelType;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class SqlLogManager {
private LogLevelType logLevelType;
private String logFormat = "[%date » MySQL %type] %msg";
/**
* Sets the Log Level
* @param logLevelType Logging Level
*/
public void setLogLevelType(LogLevelType logLevelType) {
this.logLevelType = logLevelType;
}
/**
* Format for the Message
* @param logFormat The Formatted String
*/
public void setLogFormat(String logFormat) {
this.logFormat = logFormat;
}
/**
* Getting the Logging Level
* @return LogLevelType
*/
public LogLevelType getLogLevelType() {
return logLevelType;
}
/**
* Send an information
* @param msg The provided message
*/
public void sendInfo(String msg) {
if (logLevelType == LogLevelType.ALL)
sendLog("Info", msg);
}
/**
* Send an Warning
* @param msg The provided message
*/
public void sendWarning(String msg) {
if (logLevelType == LogLevelType.ALL || logLevelType == LogLevelType.LOW)
sendLog("Warning", msg);
}
/**
* Send an Error
* @param msg The provided message
*/
public void sendError(String msg) {
if (logLevelType == LogLevelType.ALL || logLevelType == LogLevelType.LOW) {
StackTraceElement[] st = Thread.currentThread().getStackTrace();
StackTraceElement stack = st[st.length-1];
sendLog("Error", "<"+stack.getFileName()+":"+stack.getLineNumber()+"> "+msg);
}
}
/**
* Intern Logging Feature
* @param prefix Logging Prefix
* @param msg The provided message
*/
private void sendLog(String prefix, String msg) {
String formatted = logFormat.replace("%type", prefix).replace("%date", getDate()).replace("%msg", msg);
System.out.println(formatted);
}
/**
* Getting the date
* @return Datetime
*/
private String getDate() {
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("H:m:s");
LocalDateTime dt = LocalDateTime.now();
return dtf.format(dt);
}
}

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package fields;
import types.SQLType;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class SQLField {
private String name = "";
private String defaultValue = "";
private String optionalParameter = "";
private Integer length = 0;
private SQLType sqlType;
/**
* Basic constructor for the SQL field
* @param sqlType Type of the SQL field
* @param name Name of the SQL field
* @param length Length of the SQL field
*/
public SQLField(SQLType sqlType, String name, Integer length) {
this.name = name;
this.sqlType = sqlType;
this.length = length;
}
/**
* Set the default value for the SQL field
* @param defaultValue New default value
* @return this class
*/
public SQLField setDefaultValue(String defaultValue) {
this.defaultValue = defaultValue;
return this;
}
/**
* Set optional parameter for the SQL field
* @param optionalParameter New optional parameter
* @return this class
*/
public SQLField setOptionalParameter(String optionalParameter) {
this.optionalParameter = optionalParameter;
return this;
}
/**
* Set the length of the SQL field
* @param length New length
* @return this class
*/
public SQLField setLength(Integer length) {
this.length = length;
return this;
}
/**
* Set the name of the SQL field
* @param name New name
* @return this class
*/
public SQLField setName(String name) {
this.name = name;
return this;
}
/**
* Get the length of the SQL Field
* @return length
*/
public Integer getLength() {
return length;
}
/**
* Get the default value of the SQL Field
* @return default value
*/
public String getDefaultValue() {
return defaultValue;
}
/**
* Get the optional parameters of the SQL Field
* @return this class
*/
public String getOptionalParameter() {
return optionalParameter;
}
/**
* Get the name of the SQL Field
* @return name
*/
public String getName() {
return name;
}
/**
* Get the SQL Type of the SQL Field
* @return SQL Type
*/
public SQLType getSqlType() {
return sqlType;
}
}

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package generator;
import drivers.MySQLConnection;
import fields.SQLField;
import manager.UpdateManager;
import java.util.ArrayList;
import java.util.concurrent.atomic.AtomicBoolean;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class TableGenerator {
private UpdateManager updateManager;
private ArrayList<String> fields;
private boolean useID;
private String tableName;
MySQLConnection connection;
/**
* Basic constructor for the TableGenerator
* @param updateManager Existing update manager
* @param tableName Name of the table
*/
public TableGenerator(UpdateManager updateManager, String tableName) {
this.updateManager = updateManager;
this.tableName = tableName;
this.fields = new ArrayList<>();
connection = updateManager.getConnection();
}
/**
* Add an 'id' field to the Table
* @return this class
*/
public TableGenerator useID() {
this.useID = true;
return this;
}
/**
* Add a field to the Table
* @param field String of the field
* @return this class
*/
public TableGenerator addField(String field) {
fields.add(field);
return this;
}
/**
* Add a field to the Table
* @param field Existing SQL Field
* @return this class
*/
public TableGenerator addField(SQLField field) {
String temp = "";
temp += "`" + field.getName() + "` " + field.getSqlType().getValue() + "(" + field.getLength() + ")";
temp += !field.getDefaultValue().isEmpty() ? " DEFAULT '" + field.getDefaultValue() + "'" : "";
temp += !field.getOptionalParameter().isEmpty() ? " " + field.getOptionalParameter() : "";
fields.add(temp);
return this;
}
/**
* Create the table you wanted
* @return this class
*/
public TableGenerator create() {
StringBuilder sb = new StringBuilder();
sb.append("CREATE TABLE IF NOT EXISTS " + tableName + " ( ");
AtomicBoolean used = new AtomicBoolean(false);
if (useID) sb.append(used.get() ? ", " : "").append("`id` INT(255) NOT NULL AUTO_INCREMENT");used.set(true);
fields.forEach(string -> { sb.append(used.get() ? ", " : "").append(string);used.set(true); });
if (useID) sb.append(used.get() ? ", " : "").append("PRIMARY KEY (`id`)");used.set(true);
sb.append(" ) ENGINE = InnoDB;");
connection.update(sb.toString());
return this;
}
}

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package manager;
import drivers.MySQLConnection;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.concurrent.atomic.AtomicBoolean;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class DataBaseSelection {
private final MySQLConnection connection;
private final HashMap<String, Object> whereList;
private final ArrayList<Object> databaseParameters;
public ArrayList<String> optionalQuery;
private int limit;
private String tableName;
/**
* Basic constructor for selection
* @param connection The current Connection
* @param tableName The table name
*/
public DataBaseSelection(MySQLConnection connection, String tableName) {
this.whereList = new HashMap<>();
this.databaseParameters = new ArrayList<>();
this.optionalQuery = new ArrayList<>();
this.connection = connection;
from(tableName);
}
/**
* Basic constructor for selection
* @param connection The current Connection
*/
public DataBaseSelection(MySQLConnection connection) {
this.whereList = new HashMap<>();
this.databaseParameters = new ArrayList<>();
this.optionalQuery = new ArrayList<>();
this.connection = connection;
}
/**
* Get the temp-generated parameters
* @return ArrayList of parameters
*/
private ArrayList<Object> getTempParams() {
ArrayList<Object> tempParameters = new ArrayList<>();
whereList.forEach((k, v) -> tempParameters.add(v));
tempParameters.addAll(databaseParameters);
return tempParameters;
}
/**
* Sets the table name
* @param tableName The table name
* @return this class
*/
public DataBaseSelection from(String tableName) {
this.tableName = connection.getTablePrefix().isEmpty() ? tableName : connection.getTablePrefix() + tableName;
return this;
}
/**
* Adding another 'where'-statement
* @param column Table column name
* @param value Table value name
* @return this class
*/
public DataBaseSelection where(String column, Object value) {
whereList.put(column, value);
return this;
}
/**
* Sets the limit of the rows
* @param limit The new limit
* @return this class
*/
public DataBaseSelection limit(int limit) {
this.limit = limit;
return this;
}
/**
* Sets the limit of the rows
* @param limit The new limit
* @return this class
*/
public DataBaseSelection limit(String limit) {
this.limit = Integer.parseInt(limit);
return this;
}
/**
* Get the ResultManager
* @return ResultManager
*/
public ResultManager getResult() {
return connection.getResult(processStatement(), getTempParams().toArray());
}
/**
* Get the ResultSet
* @return ResultSet
*/
public ResultSet getResultSet() {
return connection.getResultSet(processStatement(), getTempParams().toArray());
}
/**
* Debug the current Statement
* @return this class
*/
public DataBaseSelection printStatement() {
StringBuilder messageBuilder = new StringBuilder();
messageBuilder.append(processStatement());
messageBuilder.append(" | params» ");
AtomicBoolean added = new AtomicBoolean(false);
getTempParams().forEach(v -> { messageBuilder.append((added.get()) ? ", " : "").append(v);added.set(true); });
StackTraceElement[] st = Thread.currentThread().getStackTrace();
StackTraceElement stack = st[st.length-1];
connection.getLogManager()
.sendInfo("DEBUG <" + stack.getFileName()+":"+stack.getLineNumber() + "> Statement: " + messageBuilder.toString());
return this;
}
/**
* Adding another factors
* @param query MySQL Query
* @param params Optional parameters for the Query
* @return this class
*/
public DataBaseSelection add(String query, Object... params) {
optionalQuery.add(query);
this.databaseParameters.addAll(Arrays.asList(params));
return this;
}
/**
* Get the current statement query
* @return the current statement query
*/
private String processStatement() {
StringBuilder sb = new StringBuilder();
sb.append("SELECT * FROM ").append(tableName).append(" ");
AtomicBoolean used = new AtomicBoolean(false);
whereList.forEach((k, v) -> { if (!used.get()) sb.append("WHERE ");else sb.append("AND ");used.set(true);sb.append(k).append(" = ? "); });
if (limit != 0) sb.append("LIMIT ").append(limit);
optionalQuery.forEach(v -> sb.append(" ").append(v).append(" "));
return sb.toString();
}
}

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package manager;
import drivers.SqlLogManager;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.HashMap;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class ResultManager {
private ResultSet resultSet;
private SqlLogManager logManager;
/**
* Basic constructor for the ResultManager
* @param resultSet Existing ResultSet
* @param logManager Existing LogManager
*/
public ResultManager(ResultSet resultSet, SqlLogManager logManager) {
this.resultSet = resultSet;
this.logManager = logManager;
}
/**
* Getting the ResultSet
* @return ResultSet
*/
public ResultSet getResultSet() {
return resultSet;
}
/**
* Get the Object of an Result
* @param column Table column
* @return Object
*/
public Object getObject(String column) {
try { while (resultSet.next()) { return resultSet.getObject(column); }
} catch (Exception err) { logManager.sendError(err.getMessage()); }
return null;
}
/**
* Get the String of an Result
* @param column Table column
* @return String
*/
public String getString(String column) {
try { while (resultSet.next()) { return resultSet.getString(column); }
} catch (Exception err) { logManager.sendError(err.getMessage()); }
return "";
}
/**
* Get the Integer of an Result
* @param column Table column
* @return Integer
*/
public Integer getInteger(String column) {
try { while (resultSet.next()) { return resultSet.getInt(column); }
} catch (Exception err) { logManager.sendError(err.getMessage()); }
return 0;
}
/**
* Get the Boolean of an Result
* @param column Table column
* @return Boolean
*/
public Boolean getBoolean(String column) {
try { while (resultSet.next()) { return resultSet.getBoolean(column); }
} catch (Exception err) { logManager.sendError(err.getMessage()); }
return false;
}
/**
* Get the count of the Result
* @return Integer (Count)
*/
public Integer getRowCount() {
int count=0;
try { while (resultSet.next()) { count++; } } catch (Exception err) { logManager.sendError(err.getMessage()); }
return count;
}
/**
* Get a List of all Results
* @param column Table column
* @return ArrayList of Result
*/
public ArrayList<String> getList(String column) {
ArrayList<String> results = new ArrayList<>();
try { while (resultSet.next()) { results.add(resultSet.getString(column)); }
} catch (Exception err) { logManager.sendError(err.getMessage()); }
return results;
}
/**
* Get a List of all Results for 2 columns
* @param column Table column #1
* @param column2 Table column #2
* @return HashMap of Result
*/
public HashMap<String, String> getMultipleList(String column, String column2) {
HashMap<String, String> results = new HashMap<>();
try { while (resultSet.next()) {
results.put(resultSet.getString(column), resultSet.getString(column2)); }
} catch (Exception err) { logManager.sendError(err.getMessage()); }
return results;
}
}

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package manager;
import drivers.MySQLConnection;
import generator.TableGenerator;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.concurrent.atomic.AtomicBoolean;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public class UpdateManager {
private MySQLConnection connection;
private String tableName;
private HashMap<String, Object> whereList;
private HashMap<String, Object> setList;
/**
* Basic constructor for the UpdateManager
* @param connection Existing MySQL connection
*/
public UpdateManager(MySQLConnection connection) {
this.connection = connection;
this.whereList = new HashMap<>();
this.setList = new HashMap<>();
}
/**
* Basic constructor for the UpdateManager
* @param connection Existing MySQL connection
* @param tableName Table name
*/
public UpdateManager(MySQLConnection connection, String tableName){
this.connection = connection;
toTable(tableName);
this.whereList = new HashMap<>();
this.setList = new HashMap<>();
}
/**
* Get the parameters for the SQL statement
* @return the parameters
*/
private ArrayList<Object> getTempParams() {
ArrayList<Object> tempParams = new ArrayList<>();
setList.forEach((str, obj) -> tempParams.add(obj));
whereList.forEach((str, obj) -> tempParams.add(obj));
return tempParams;
}
/**
* Get the current connection
* @return MySQL connection
*/
public MySQLConnection getConnection() {
return connection;
}
/**
* Print the deletion statement
* @return this class
*/
public UpdateManager printDeleteStatement() {
StringBuilder messageBuilder = new StringBuilder();
messageBuilder.append(processDeleteStatement());
messageBuilder.append(" | params» ");
AtomicBoolean added = new AtomicBoolean(false);
whereList.values().forEach(v -> { messageBuilder.append((added.get()) ? ", " : "").append(v);added.set(true); });
StackTraceElement[] st = Thread.currentThread().getStackTrace();
StackTraceElement stack = st[st.length-1];
connection.getLogManager()
.sendInfo("DEBUG <" + stack.getFileName()+":"+stack.getLineNumber() + "> Statement: " + messageBuilder.toString());
return this;
}
/**
* Print the update statement
* @return this class
*/
public UpdateManager printUpdateStatement() {
StringBuilder messageBuilder = new StringBuilder();
messageBuilder.append(processUpdateStatement());
messageBuilder.append(" | params» ");
AtomicBoolean added = new AtomicBoolean(false);
getTempParams().forEach(v -> { messageBuilder.append((added.get()) ? ", " : "").append(v);added.set(true); });
StackTraceElement[] st = Thread.currentThread().getStackTrace();
StackTraceElement stack = st[st.length-1];
connection.getLogManager()
.sendInfo("DEBUG <" + stack.getFileName()+":"+stack.getLineNumber() + "> Statement: " + messageBuilder.toString());
return this;
}
/**
* Change the tableName
* @param tableName New tableName
* @return this class
*/
public UpdateManager toTable(String tableName) {
this.tableName = connection.getTablePrefix().isEmpty() ? tableName : connection.getTablePrefix() + tableName;
return this;
}
/**
* Add a 'where'-clause
* @param column Table column
* @param value Value of the column
* @return this class
*/
public UpdateManager where(String column, Object value) {
whereList.put(column, value);
return this;
}
/**
* Add a 'set'-clause
* @param column Table column
* @param value Value of the column
* @return this class
*/
public UpdateManager set(String column, Object value) {
setList.put(column, value);
return this;
}
/**
* Delete the entries with your current conditions
* @return this class
*/
public UpdateManager delete() {
connection.update(processDeleteStatement(), whereList.values().toArray());
return this;
}
/**
* Update the entries with your current conditions
* @return this class
*/
public UpdateManager update() {
connection.update(processUpdateStatement(), getTempParams().toArray());
return this;
}
/**
* Get the Query of the 'update'-Statement
* @return the Statement
*/
private String processUpdateStatement() {
StringBuilder sb = new StringBuilder();
sb.append("UPDATE ").append(tableName);
if (!setList.isEmpty()) sb.append(" SET ");
AtomicBoolean used = new AtomicBoolean(false);
setList.forEach((str, obj) -> {
if (used.get()) sb.append(", ");
sb.append(str).append(" = ?");
used.set(true);
});
if (!whereList.isEmpty()) sb.append(" WHERE ");
AtomicBoolean used2 = new AtomicBoolean(false);
whereList.forEach((str, obj) -> {
if (used2.get()) sb.append(" AND ");
sb.append(str).append(" = ?");
used2.set(true);
});
return sb.toString();
}
/**
* Get the Query of the 'delete'-Statement
* @return
*/
private String processDeleteStatement() {
StringBuilder sb = new StringBuilder();
sb.append("DELETE FROM ").append(tableName);
if (!whereList.isEmpty()) sb.append(" WHERE ");
AtomicBoolean used = new AtomicBoolean(false);
whereList.forEach((str, obj) -> {
if (used.get()) sb.append(" AND ");
sb.append(str).append(" = ?");
used.set(true);
});
return sb.toString();
}
/**
* Generate a new Table (with prefilled tableName)
* @param tableName Name of the new table
* @return the generator
*/
public TableGenerator generateTable(String tableName) {
return new TableGenerator(this, tableName);
}
/**
* Generate a new Table
* @return the generator
*/
public TableGenerator generateTable() {
return (tableName.isEmpty()) ? null : new TableGenerator(this, tableName);
}
}

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package types;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public enum LogLevelType {
NONE("Sends nothing"),
LOW("Sends Warnings & Errors"),
ALL("Sends Infos, Warnings & Errors");
/**
* Basic constructor for the LogLevelType enum
* @param info Info for documentation
*/
LogLevelType(String info) { }
}

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package types;
/********************************
* @author Mathias Wagner
* Created 23.12.2020
********************************/
public enum LoginParam {
DEFAULT("useSSL=false&autoReconnect=true&useUnicode=yes&characterEncoding=UTF-8&useTimezone=true&serverTimezone=UTC"),
NO_SSL("useSSL=false"),
USE_SSL("useSSL=true"),
AUTO_RECONNECT("autoReconnect=true"),
UTF8_ENCODING("characterEncoding=UTF-8"),
USE_UNICODE("useUnicode=yes"),
USE_TIMEZONE("useTimezone=true"),
TIMEZONE_UTC("serverTimezone=UTC");
private String value;
/**
* Basic constructor for the LoginParam enum
* @param value JDBC parameter
*/
LoginParam(String value) {
this.value = value;
}
/**
* Get the JDBC value
* @return the value
*/
public String getValue() {
return this.value;
}
}

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package types;
public enum SQLType {
STRING("VARCHAR"),
INTEGER("INT"),
DATE("DATE"),
DATETIME("DATETIME");
private String value = "";
/**
* Basic constructor for the SQLType enum
* @param value MySQL data type
*/
SQLType(String value) {
this.value = value;
}
/**
* Get the value of the chosen enum
* @return
*/
public String getValue() {
return value;
}
}