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Implementing /news add and delete commands.

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Peter Miller 2014-07-10 21:10:35 -04:00
parent 82ba7bf30f
commit 2ec8371f98
3 changed files with 344 additions and 23 deletions
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144
Plugins/Mineplex.Hub/src/mineplex/hub/HubRepository.java
View File

@ -28,9 +28,11 @@ public class HubRepository
private static String CREATE_NEWS_TABLE = "CREATE TABLE IF NOT EXISTS newsList (id INT NOT NULL AUTO_INCREMENT, newsString VARCHAR(256), newsPosition INT, PRIMARY KEY (id));";
private static String RETRIEVE_NEWS_ENTRIES = "SELECT newsString, newsPosition FROM newsList;";
private static String RETRIEVE_MAX_NEWS_POSITION = "SELECT MAX(newsPosition) AS newsPosition FROM newsList;";
private static String ADD_NEWS_ENTRY = "INSERT INTO newsList (newsString, newsPosition) VALUES(?,?);";
private static String SET_NEWS_ENTRY = "UPDATE newsList SET newsString = ? WHERE newsPosition = ?;";
private static String DELETE_NEWS_ENTRY = "DELETE FROM newsList WHERE newsPosition = ?;";
private static String RECALC_NEWS_POSITIONS = "UPDATE newsList SET newsPosition = newsPosition - 1 WHERE newsPosition > ?;";
private Connection _connection = null;
@ -171,4 +173,146 @@ public class HubRepository
return result != 0;
}
public int retrieveMaxNewsPosition()
{
int result = 0;
ResultSet resultSet = null;
PreparedStatement preparedStatement = null;
try
{
synchronized (_connectionLock)
{
if (_connection.isClosed())
{
_connection = DriverManager.getConnection(_connectionString, _userName, _password);
}
preparedStatement = _connection.prepareStatement(RETRIEVE_MAX_NEWS_POSITION);
resultSet = preparedStatement.executeQuery();
while (resultSet.next())
{
result = Integer.parseInt(resultSet.getString(1));
}
}
}
catch (Exception exception)
{
exception.printStackTrace();
}
finally
{
if (preparedStatement != null)
{
try
{
preparedStatement.close();
}
catch (SQLException e)
{
e.printStackTrace();
}
}
}
return result;
}
public boolean addNewsEntry(String newsEntry)
{
int result = 0;
int maxPos = retrieveMaxNewsPosition();
PreparedStatement preparedStatement = null;
try
{
synchronized (_connectionLock)
{
if (_connection.isClosed())
{
_connection = DriverManager.getConnection(_connectionString, _userName, _password);
}
preparedStatement = _connection.prepareStatement(ADD_NEWS_ENTRY);
preparedStatement.setString(1, newsEntry);
preparedStatement.setInt(2, maxPos + 1);
result = preparedStatement.executeUpdate();
}
}
catch (Exception exception)
{
exception.printStackTrace();
}
finally
{
if (preparedStatement != null)
{
try
{
preparedStatement.close();
}
catch (SQLException e)
{
e.printStackTrace();
}
}
}
return result != 0;
}
public boolean deleteNewsEntry(int newsPosition)
{
int result = 0;
int maxPos = retrieveMaxNewsPosition();
PreparedStatement preparedStatement = null;
try
{
synchronized (_connectionLock)
{
if (_connection.isClosed())
{
_connection = DriverManager.getConnection(_connectionString, _userName, _password);
}
preparedStatement = _connection.prepareStatement(DELETE_NEWS_ENTRY);
preparedStatement.setInt(1, newsPosition);
result = preparedStatement.executeUpdate();
if (result != 0 && maxPos != newsPosition)
{
preparedStatement.close();
preparedStatement = _connection.prepareStatement(RECALC_NEWS_POSITIONS);
preparedStatement.setInt(1, newsPosition);
result = preparedStatement.executeUpdate();
}
}
}
catch (Exception exception)
{
exception.printStackTrace();
}
finally
{
if (preparedStatement != null)
{
try
{
preparedStatement.close();
}
catch (SQLException e)
{
e.printStackTrace();
}
}
}
return result != 0;
}
}

106
Plugins/Mineplex.Hub/src/mineplex/hub/commands/NewsCommand.java
View File

@ -24,7 +24,7 @@ public class NewsCommand extends CommandBase<HubManager>
@Override
public void Execute(final Player caller, final String[] args)
{
NewsManager newsMang = Plugin.GetNewsManager();
final NewsManager newsMang = Plugin.GetNewsManager();
if (args == null || args.length == 0)
{
@ -35,45 +35,110 @@ public class NewsCommand extends CommandBase<HubManager>
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cWhite + "news add <newsEntry>" + C.cGray + " - Adds specified news entry string to database at end of table."));
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cWhite + "news delete #" + C.cGray + " - Removes specified (numbered) news entry string from database."));
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cWhite + "news set # <newsEntry>" + C.cGray + " - Updates specified (numbered) news entry string in database."));
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cWhite + "*Please Note: " + C.cGray + "Updates to server news entries from the database are on a 4 minute refresh cycle!"));
return;
}
else if (args.length == 1 && args[0].equalsIgnoreCase("list"))
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGray + "Current server news messages will be listed here..."));
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGray + "Current server news messages:"));
newsMang.RetriveNewsEntries(new Callback<HashMap<String, String>>()
{
public void run(HashMap<String, String> newsEntries)
public void run(final HashMap<String, String> newsEntries)
{
// Order newsEntries set or its output by newsPosition, not hash order...
newsMang.RetrieveMaxNewsPosition(new Callback<Integer>()
{
public void run(Integer maxPosition)
{
String[] newsStrings = new String[maxPosition];
for (Iterator<String> iterator = newsEntries.keySet().iterator(); iterator.hasNext();)
{
String newsPosition = iterator.next();
String newsEntry = newsEntries.get(newsPosition);
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGold + "News " + newsPosition + C.cGray + " : " + newsEntry));
newsStrings[Integer.parseInt(newsPosition) - 1] = newsEntries.get(newsPosition);
//iterator.remove();
}
for (int i = 0; i < newsStrings.length; i++)
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGold + "News " + (i + 1) + C.cGray + " : " + newsStrings[i]));
}
}
});
}
});
return;
}
else if (args.length >= 2 && args.length <= 128)
{
if (args[0].equalsIgnoreCase("delete") && args.length == 2)
{
final int newsPosition;
try
{
newsPosition = Integer.parseInt(args[1]);
}
catch (Exception exception)
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cRed + "The specified news position is invalid!"));
return;
}
newsMang.DeleteNewsEntry(newsPosition, new Callback<Boolean>()
{
public void run(Boolean success)
{
if (success)
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGray + "The news entry at position " + C.cGold + newsPosition + C.cGray + " has been deleted!"));
}
else
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cRed + "There was an error deleting the news entry; likely the specified news position was invalid!"));
}
}
});
return;
}
else if (args.length == 2)
else if (args[0].equalsIgnoreCase("add"))
{
if (args[0].equalsIgnoreCase("add"))
String newsEntry = "";
for (int i = 1; i < args.length; i++)
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGray + "This is where future messages like, " + C.cGold + "'" + args[1] + "'" + C.cGray + " will be added to server news!"));
newsEntry += args[i] + " ";
}
newsEntry = newsEntry.substring(0, newsEntry.length() - 1);
// Check for 256 character length for MySQL!
if (newsEntry.length() > 256)
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cRed + "The specified news entry is too long [> 256 characters]!"));
return;
}
else if (args[0].equalsIgnoreCase("delete"))
newsMang.AddNewsEntry(newsEntry, new Callback<Boolean>()
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGray + "This is where future messages at positions like, " + C.cGold + "'News Position: " + C.cGold + args[1] + "'" + C.cGray + " will be removed from server news!"));
public void run(Boolean success)
{
if (success)
{
String newsEntry = "";
for (int i = 1; i < args.length; i++)
{
newsEntry += args[i] + " ";
}
newsEntry = newsEntry.substring(0, newsEntry.length() - 1);
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cGray + "The news entry: " + C.cGold + newsEntry + C.cGray + " has been added to the database!"));
}
else
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cRed + "There was an error adding the news entry to the database!"));
}
}
});
return;
}
}
else if (args.length >= 3 && args.length <= 128)
{
if (args[0].equalsIgnoreCase("set"))
else if (args[0].equalsIgnoreCase("set"))
{
final int newsPosition;
String newsEntry = "";
@ -83,7 +148,12 @@ public class NewsCommand extends CommandBase<HubManager>
}
newsEntry = newsEntry.substring(0, newsEntry.length() - 1);
// TODO: Check for 256 character length for MySQL!
// Check for 256 character length for MySQL!
if (newsEntry.length() > 256)
{
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cRed + "The specified news entry is too long [> 256 characters]!"));
return;
}
try
{
@ -117,6 +187,8 @@ public class NewsCommand extends CommandBase<HubManager>
});
return;
}
UtilPlayer.message(caller, F.main(Plugin.GetName(), C.cRed + "Your arguments are inappropriate for this command!"));
return;
}
else
{

105
Plugins/Mineplex.Hub/src/mineplex/hub/modules/NewsManager.java
View File

@ -1,6 +1,7 @@
package mineplex.hub.modules;
import java.util.HashMap;
import java.util.Iterator;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
@ -10,7 +11,9 @@ import org.bukkit.event.EventHandler;
import mineplex.core.MiniPlugin;
import mineplex.core.common.util.C;
import mineplex.core.common.util.Callback;
import mineplex.core.common.util.F;
import mineplex.core.common.util.UtilDisplay;
import mineplex.core.common.util.UtilPlayer;
import mineplex.core.common.util.UtilServer;
import mineplex.core.common.util.UtilTime;
import mineplex.core.updater.UpdateType;
@ -45,6 +48,33 @@ public class NewsManager extends MiniPlugin
"Champions: " + C.cYellow + C.Bold + "Team Deathmatch Beta",
"Survival: " + C.cGreen + C.Bold + "UHC Alpha",
};
RefreshNews();
}
private void RefreshNews()
{
RetriveNewsEntries(new Callback<HashMap<String, String>>()
{
public void run(final HashMap<String, String> newsEntries)
{
// Order newsEntries set or its output by newsPosition, not hash order...
RetrieveMaxNewsPosition(new Callback<Integer>()
{
public void run(Integer maxPosition)
{
String[] newsStrings = new String[maxPosition];
for (Iterator<String> iterator = newsEntries.keySet().iterator(); iterator.hasNext();)
{
String newsPosition = iterator.next();
newsStrings[Integer.parseInt(newsPosition) - 1] = newsEntries.get(newsPosition);
}
_news = newsStrings;
}
});
}
});
}
public void RetriveNewsEntries(final Callback<HashMap<String, String>> callback)
@ -91,6 +121,81 @@ public class NewsManager extends MiniPlugin
});
}
public void AddNewsEntry(final String newsEntry, final Callback<Boolean> callback)
{
if (callback == null)
return;
Bukkit.getScheduler().runTaskAsynchronously(GetPlugin(), new Runnable()
{
public void run()
{
final Boolean success = _repository.addNewsEntry(newsEntry);
Bukkit.getScheduler().runTask(GetPlugin(), new Runnable()
{
public void run()
{
callback.run(success);
}
});
}
});
}
public void DeleteNewsEntry(final int newsPosition, final Callback<Boolean> callback)
{
if (callback == null)
return;
Bukkit.getScheduler().runTaskAsynchronously(GetPlugin(), new Runnable()
{
public void run()
{
final Boolean success = _repository.deleteNewsEntry(newsPosition);
Bukkit.getScheduler().runTask(GetPlugin(), new Runnable()
{
public void run()
{
callback.run(success);
}
});
}
});
}
public void RetrieveMaxNewsPosition(final Callback<Integer> callback)
{
if (callback == null)
return;
Bukkit.getScheduler().runTaskAsynchronously(GetPlugin(), new Runnable()
{
public void run()
{
final Integer position = _repository.retrieveMaxNewsPosition();
Bukkit.getScheduler().runTask(GetPlugin(), new Runnable()
{
public void run()
{
callback.run(position);
}
});
}
});
}
@EventHandler
public void NewsUpdate(UpdateEvent event)
{
if (event.getType() != UpdateType.MIN_04)
return;
RefreshNews();
}
@EventHandler
public void FlightUpdate(UpdateEvent event)
{