BKCommonLib
BKCommonLib is no longer being updated on dev.bukkit.org.
If you want to use the latest version, use spigot.
Latest version: 1.57
CraftBukkit/SportBukkit/Spigot/MCPC+ build: CB 1.6.4 R1.0 / CB 1.6.4 R2.1 / Spigot 1.7
Older builds available: CB 1.5.2-R1.0 / CB 1.6.2-R1.0
Tekkit: Untested and thus unsupported, some features may not work as expected
Description
This utility library shares all the common code needs for various plugins, and having them in one library heavily reduces the amount of duplicated code. The featured utilities are varied, and whenever something is missing in Bukkit, it is added in BKCommonLib. This is one of the reasons why it has become this large: there are simply a lot of things Bukkit doesn't (want to) offer.
BKCommonLib has versioning on a per-plugin basis, so when a certain plugin needs version 2, and version 1 is installed, the server owner is automatically notified and the plugin is not enabled. This prevents the common mishaps with outdated BKCommonLib versions.
Other than utilities and services, this library offers a wide variety of reflection and user-friendly ways of accessing net.minecraft.server. If your plugin requires the use of the internals, but do not want to risk changing field and method names, you can depend on BKCommonLib to provide them for you. This allows you to remain compatible between CraftBukkit versions automatically, and reduces silent failure hazards.
Reasons for you to depend on this library
- You need to access Minecraft internals in your plugin, and Bukkit has no API for it
- You are tired of re-uploading the same version over again because of the internals changing
- You want to work with Vector/math logic, or need to use other utility classes
- The YAML of Bukkit dislikes you, and you want this to be easier
- You want to easily read and write configuration/data files
- You want easy access to data conversion utilities to convert user input
- You want to work with inventories in an advanced fashion
- You want to work with unique server events
- You want to alter entity behaviour (such as handling block collisions, custom movement, etc.)
- You want plugin messages/permissions to be configurable
- You want to work with (async)tasks without storing IDs
- You want to send and manipulate packets
Features
- General
- PluginBase for easy access to metrics, permissions, localization and more
- Permission defaults for storing the permissions a plugin uses
- Localization for making the messages of a plugin configurable
- Utilities
- General utilities for String, Logic, BlockFace and Math operations
- Block utilities for Block-related operations (states, data, etc.)
- ItemUtil for Inventory, Items and Item Transfer utilities
- RecipeUtil to work with crafting and furnace recipes
- Various Collections for auto-filtering, converting and even interpolation
- Data storage
- Configuration API with nodes, headers and other goodies
- NBT API designed after the configuration API
- (Compressed)DataReader/DataWriter to read and write data from/to file
- Entities
- CommonEntity implementations with added utilities
- EntityController for altering entity behaviour
- EntityNetworkController for altering entity network logic
- Services
- Metrics for keeping track of plugin statistics
- Conversion for conversions between all types of data
- Events and Listeners to keep track of changes on the server
- Packet services and API to keep track of packets
- Task class for easier task scheduling
- Scoreboard services to setup scoreboards without criteria
- Tab View service to alter what is shown when players press tab
Getting started
To start using BKCommonLib, you have two options (after adding BKCommonLib as dependency in the plugin.yml):
Include the jar file as a dependency
Like any dependency, keep the jar file somewhere on your computer and add it to your classpath. Nothing special here.
Make a (new) maven project and include it
Add the following repository:
<repository> <id>dj-tcraft repository</id> <url>http://ci.dj-tcraft.nl/plugin/repository/everything/</url> </repository>
And the following dependency (may need to update version):
<dependency> <groupId>com.bergerkiller.bukkit</groupId> <artifactId>BKCommonLib</artifactId> <version>1.54-SNAPSHOT</version> <scope>provided</scope> </dependency>
Dependencies BKCommonLib uses
BKCommonLib supports various other plugins and projects. Below all of these are listed:
- Vault - for permission plugin support
- ProtocolLib - to avoid packet listening conflicts
- Showcase(Standalone) - to ignore showcased items
- HyperConomy - to ignore shop items
- BleedingMobs - to ignore particles
- CGLib - for generating nms.Entity classes on-the-fly to supply Entity Controllers
- Objenesis - for generating classes without calling constructors (needed for various fixes inside class constructors)
Plugins that require BKCommonLib to be installed:
Disclaimer
This plugin utilises Hidendra's plugin metrics system, which means that the following information is collected and sent to mcstats.org:
- A unique identifier
- The server's version of Java
- Whether the server is in offline or online mode
- The plugin's version
- The server's version
- The OS version/name and architecture
- The core count for the CPU
- The number of players online
- The Metrics version Opting out of this service can be done by editing plugins/Plugin Metrics/config.yml and changing opt-out to true.
License
This library uses an open license. Feel free to use whatever code you need from it, you do not have to ask me either. If you want me to add certain features, that is fine too. Everyone is allowed to use this Library as a dependency. I do recommend extending 'PluginBase' instead of 'JavaPlugin' then, as it allows you to automatically deal with the BKCommonLib versioning checks. See also: BKCommonLib license file
This product includes software developed by the Apache Software Foundation (http://www.apache.org/)
Links:
Compatibility
BKCommonLib supports ProtocolLib when it is enabled, but if it is not, the player connection is replaced resulting in several incompatibilities. To fix these incompatibility issues, install ProtocolLib next to BKCommonLib. This can not be stressed enough. When incompatibility occurs, BKCommonLib will notify you in the console and will disable itself. The following plugins are known to be incompatible when ProtocolLib is NOT installed:
Metrics
This plugin sends server count and dependency statistics to MCStats.org. You can (globally) opt out in the PluginMetrics/config.yml file.
Banner
I use a banner in my depending plugins. This banner is automatically updated when a new version of BKCommonLib is out. It is a quick and efficient way to keep track of updates for this library. This was needed, too, because a lot of people were using outdated BKCommonLib versions, which resulted in bug reports...too many of them. And I do not want to waste your time with invalid reports. You have a plugin that uses BKCommonLib? Feel free to use the banner on your download page.
[[http://dev.bukkit.org/bukkit-plugins/bkcommonlib/|{{http://ci.dj-tcraft.nl/job/BKCommonLib/lastSuccessfulBuild/artifact/target/BKCommonLibVersion.png|Go to the BKCommonLib Dev-bukkit page}}]]







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Posted Jul 5, 2013@lenis0012
It's doing something. This is a reference to an unloaded world.
http://i.imgur.com/RkiCRRg.jpg
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Posted Jul 5, 2013I hate it. Minecraft bring 1.6 out, but i can't update my server, because a few stupids doesn't have te update ready for BKCommonLib. Why isn't it possible to launch it when bukkit launch 1.6?.. Not a kind of hard. And then, finally, there's a 1.6 version, but sure, not for TrainCarts. I need that one, and i have to wait? What a kind of service it is..
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Posted Jul 4, 2013@Stevenpcc
CommonScoreboard does nothing if you do not use it.
No events or packet listeners are connected to it
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Posted Jul 4, 2013This relates to 1.5.1-R0.2
I run a game server that loads and unloads worlds. It's been suffering from a memory leak when the worlds are loaded and unloaded. BKCommonlib is one of the plugins I use. I produced a heap dump from the server today, and I've been checking through it. In a couple of cases it would seem that BKcommonlib was responsible for the memory leak.
The CommonScoreboard class retained a reference to the CraftPlayer instance of an offline player. The CraftPlayer instance had a Location object referencing a game world, which meant it couldn't be cleared from memory.
I should note, this leak is rather difficult to reproduce in a dev setting. That's why I'm using the heap dump from a live server. I'm also at a loss as to explain why it's happening. My code did not use the CommonScoreboard at all.
I checked the logs to see if anything unusual happened with those players, but everything seemed normal.
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Posted Jul 4, 2013BKCommonLib-1.53-SNAPSHOT is out.
This doesn't work with TrainCarts yet.
All the orther plugins should work fine.
However NoLaggLighitng seems to be broken with 1.6
Any errors are welcome and will be fixed as soon a possible.
Please use pastebin links though
Edit: NoLaggChunks is not compatible wiht spigot in 1.6.1! be aware
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Posted Jul 4, 2013@lenis0012
Nice! Good work :3
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Posted Jul 4, 2013@craftik7
Waiting for bergerkiller to pus his last 1.5.2 changes.
In 1.6 i have issues wiht NoLaggLighting and the EntityStatus packet gives errors.
We should have a dev build form 1.6 tomorrow
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Posted Jul 4, 2013@lenis0012
How is it going ? :D
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Posted Jul 4, 2013@lenis0012
Excellent job!
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Posted Jul 4, 2013@lenis0012
Sweet!
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Posted Jul 4, 2013TrainCarts + Nolagg on 1.6.1
Vicotry!
http://i.imgur.com/KC3tzCD.png
I will relase the build soon.
We all got to wait until berger is done with his changes :)
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Posted Jul 4, 2013I am afraid 1.6.1 still needs work though:
http://i.imgur.com/lW3fdvZ.png
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Posted Jul 4, 2013First run without errors on 1.6.1 now:
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Posted Jul 3, 2013Allright everyone.
I have been waiting for LibiGot to update as we use it in eclpise to code BKCommonLib.
It has been updated to 1.6.1 so now we can get started on releasing 1.6 builds.
Stay tuned and check the commands now and then
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Posted Jul 3, 2013Would it be possible for a 1.6.1-compatible binary to be available via repository before any remaining bugs are fixed? A responsible server owner (especially one that uses development builds of plugins) always creates a duplicate of his server folder to test plugins before a major update. This would propagate development by allowing you to receive tickets rather than you going on a one-man bug hunt which may not be as thorough. Unfortunately, this is the only plugin that still requires updating for me and in the world of server administration, time is of the essence when updating is concerned (as many do not wait to upgrade their clients).
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Posted Jul 3, 2013@bergerkiller
I hope so. I need NoLagg :D
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Posted Jul 3, 2013@Etanolski Yep.
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Posted Jul 3, 2013Support for 1.6.1 soon? :)
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Posted Jul 3, 2013@DevChaiiin I'll try to remember to notify you when what happens, although I will most likely post it here first anyway. I don't expect updating to 1.6 to be too much of a trouble though.
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Posted Jul 2, 2013If you want to let me know when you update, in case I do not see it, I will announce the update on my Twitter @mcnotifier