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@ -1,29 +1,63 @@
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package ru.simsonic.rscPermissions.Engine.Backends; |
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import java.util.HashMap; |
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import java.util.HashSet; |
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import java.util.LinkedList; |
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import java.util.List; |
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import java.util.Map; |
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import ru.simsonic.rscMinecraftLibrary.Bukkit.CommandAnswerException; |
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import ru.simsonic.rscMinecraftLibrary.Bukkit.GenericChatCodes; |
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import ru.simsonic.rscPermissions.API.RowEntity; |
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import ru.simsonic.rscPermissions.API.RowInheritance; |
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import ru.simsonic.rscPermissions.API.RowPermission; |
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import ru.simsonic.rscPermissions.BukkitPluginMain; |
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public class DatabaseTransaction |
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public class DatabaseEditor |
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{ |
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private final BukkitPluginMain rscp; |
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private final List<DatabaseAction> actions = new LinkedList<>(); |
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public DatabaseTransaction(BukkitPluginMain rscp) |
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private final BukkitPluginMain plugin; |
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private final Map<String, RowEntity> entities = new HashMap<>(); |
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private final Map<String, RowPermission> permissions = new HashMap<>(); |
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private final Map<String, RowInheritance> inheritance = new HashMap<>(); |
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public DatabaseEditor(BukkitPluginMain rscp) |
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{ |
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this.rscp = rscp; |
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this.plugin = rscp; |
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} |
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public void fill(DatabaseContents contents) |
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{ |
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clear(); |
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for(RowEntity row : contents.entities) |
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entities.put(row.splittedId, row); |
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for(RowPermission row : contents.permissions) |
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permissions.put(row.splittedId, row); |
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for(RowInheritance row : contents.inheritance) |
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inheritance.put(row.splittedId, row); |
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} |
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private void clear() |
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{ |
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entities.clear(); |
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permissions.clear(); |
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inheritance.clear(); |
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} |
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public void removeEntity(String splittedId) |
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{ |
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// Do I know something about such row?
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final RowEntity row = entities.get(splittedId); |
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if(row == null) |
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return; |
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// Find if it is part of a multidata row
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final List<RowEntity> fromSameRow = new LinkedList<>(); |
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for(RowEntity test : entities.values()) |
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if(test != row && test.id == row.id) |
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fromSameRow.add(test); |
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// TO DO : REMOVE ENTITY ROW HERE
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// Restore all data that contained in that row
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if(!fromSameRow.isEmpty()) |
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{ |
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// DO RESTORE
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} |
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} |
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/* |
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What can happen? |
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<user> add permission [destination] [lifetime] |
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<user> remove permission [destination] |
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<user> add group [destination] [lifitime] |
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<user> remove group [destination] |
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*/ |
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public void apply() throws CommandAnswerException |
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{ |
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final DatabaseContents contents = prepareChanges(); |
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@ -61,22 +95,22 @@ public class DatabaseTransaction
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private DatabaseContents prepareChanges() |
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{ |
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// START TRANSACTION AND LOCK TABLE
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rscp.connection.lockTableEntities(); |
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rscp.connection.lockTablePermissions(); |
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rscp.connection.lockTableInheritance(); |
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rscp.connection.transactionStart(); |
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plugin.connection.lockTableEntities(); |
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plugin.connection.lockTablePermissions(); |
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plugin.connection.lockTableInheritance(); |
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plugin.connection.transactionStart(); |
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// SELECT FROM DATABASE INTO LOCAL CACHE TO MAKE IT ACTUAL
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return rscp.commandHelper.threadFetchDatabaseContents.remoteToLocal(); |
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return plugin.commandHelper.threadFetchDatabaseContents.remoteToLocal(); |
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} |
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private void finishChanges(boolean commit) |
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{ |
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// COMMIT OR ROLLBACK ACTIONS
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if(commit) |
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rscp.connection.transactionCommit(); |
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plugin.connection.transactionCommit(); |
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else |
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rscp.connection.transactionCommit(); |
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plugin.connection.transactionCommit(); |
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// CALL PLUGIN TO APPLY ALL THIS CHANGES
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rscp.commandHelper.threadFetchDatabaseContents.run(); |
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plugin.commandHelper.threadFetchDatabaseContents.run(); |
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} |
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private RowPermission restorePermissionsAfterDelete(DatabaseContents contents, RowPermission remove) |
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{ |
Stanislav Usenkov
9 years ago