YAML node: What type ?

I'm trying to access a node in a YML file... but I don't know what type it is just by looking at it... So I don't know what getter to look for in API.

Here's the yaml file:

Code:

arenas:
  b2:
    locations:
      '1': Battlecraft,211.2465228678722,74.0,-940.3882217694892,-267.55667,3.6000125
      '0': Battlecraft,160.33054850156566,74.0,-942.7268442438761,-88.60673,-0.8999724
    type: BombArena
    spawns:
      '1':
        time: 1 300 0
        spawn: HARD_CLAY 1
        loc: Battlecraft,185.6336732547647,74.0,-941.8442307513332,-177.5567,2.1000018
    waitRoomLocations:
      '1': Battlecraft,187.10000444808097,74.0,-950.2985274819425,-185.65675,-1.8000057
      '0': Battlecraft,184.09688872870893,74.0,-950.5107243057915,-172.60669,-1.3500059
    params: {}
    bases:
      '1': Battlecraft,161.0,74.0,-942.0,0.0,0.0
      '2': Battlecraft,210.0,74.0,-942.0,0.0,0.0
brokenArenas: {}

Specifically, I'm trying to get and set the node: "arenas.b2.spawns.1.spawn"

which is the general node of "arenas.{name}.spawns.{index}.spawn"

Code:

spawn: HARD_CLAY 1

I've tried getString() hoping it would work without there being single quotes or double quotes.

Code:java

 private void setBombSpawn(String x) {
// PATH = "arenas.{arena}.spawns.{index}.spawn"
String value = x + " 1";
String BombBlockString = this.BombBlock.name();
this.debug.log("updating arenas.yml with " + x);
ConfigurationSection arenas = this.arenasYml.getConfigurationSection("arenas");
this.debug.log("" + arenas.getKeys(false).toString());
for (String arena : arenas.getKeys(false)) {
this.debug.log("" + arena.toString());
ConfigurationSection spawns = this.arenasYml.getConfigurationSection("arenas." + arena);
this.debug.log("" + spawns.getKeys(false).toString());
for (String n : spawns.getKeys(false)) {
String path = "arenas." + arena + ".spawns." + n + ".spawn";
String old = this.arenasYml.getItemStack(path).toString();
if (!old.startsWith(BombBlockString)) {
this.debug.log("BombArena arenas.yml has an item/mob spawn that is NOT a Bomb! " + old);
continue;
}
getLogger().info("" + path + " has been changed from " + old + " to " + value);
this.arenasYml.set(path, value);
}
}
this.arenasYml.saveConfig();
}

Here's the error (pretty obvious because I'm using the wrong getter)

NPE in server.log and debugging info (open) NPE in server.log and debugging info (close)

Code:

[BattleArena] Enabling BattleArena v3.9.6.7
[BattleArena] enabling!
[BattleArena] Essentials detected. God mode handling activated
[BattleArena] WorldEdit detected.
[BattleArena] WorldGuard detected. WorldGuard regions can now be used
[BattleArena] Warning currency was empty, using name from config.yml
[BattleArena] found economy plugin Vault. [Default]
[BattleArena] no additional Arena modules
[BattleArena] registering classes: assault, support, recon, engineer, Vector, Dragonuv, Barrett, Fal, 552, AKS-75X, UMP-45X, FAMAS-X, stg77, P90X
[BattleArena] enabled!
[INFO] [BombArena] Enabling BombArena v172140502-0104
[INFO] [BombArena] Loading config.yml
[INFO] [BombArena] updating arenas.yml with LOG
[INFO] [BombArena] [b2]
[INFO] [BombArena] b2
[INFO] [BombArena] [locations, type, spawns, waitRoomLocations, params, bases]
2014-05-02 01:09:30 [Server thread][ERROR] Error occurred while enabling BombArena v172140502-0104 (Is it up to date?)
java.lang.NullPointerException
    at mc.euro.demolition.BombPlugin.setBombSpawn(BombPlugin.java:14) ~[?:?]
    at mc.euro.demolition.BombPlugin.loadDefaultConfig(BombPlugin.java:109) ~[?:?]
    at mc.euro.demolition.BombPlugin.onEnable(BombPlugin.java:86) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:350) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:389) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:439) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:375) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.m(MinecraftServer.java:342) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.g(MinecraftServer.java:319) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.a(MinecraftServer.java:275) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:175) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit172.jar:git-Bukkit-1.7.2-R0.3-b3020jnks]
[Server thread][INFO] Server permissions file permissions.yml is empty, ignoring it
2014-05-02 01:09:31 [Server thread][INFO] Done (2.189s)! For help, type "help" or "?"

So I tried getString() first, then I tried getItemStack(). Is it a vector ? Or a custom type ?

It looks like I have two options: write my own getter() or find one in the BattleArena API:

http://ci.battleplugins.com/job/BattleArena/javadoc/

 

Europia79

What you see is a serialized class. You will have to look through the BattleCraft source to see exactly what class it is and how they unserialize it.

 

Superckl1
Thanks! You've helped a ton. since I know what type it is now, I know what to look for in the javadocs:
http://ci.battleplugins.com/job/BattleArena/javadoc/mc/alk/arena/serializers/package-summary.html
i'll comb thru that and see if I can find it !

 

https://github.com/alkarinv/BattleA.../arena/executors/ArenaEditorExecutor.java#L61

Help! This method (lines 61-80) is what originally adds the section "arenas.{arenaName}.spawns.{index}.spawn" node with the value "spawn: HARD_CLAY 1"

But I've examined all those classes, and still cannot figure out how to
1. get the node (in order to check the contents)
2. change the value of the node (if necessary)

If anyone is knowledgeable about Serializing & De-Serializing configuration nodes, I would appreciate the help! Thanks!