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You can now: set the title of the chest inventory, send a message to …
…players at an interval showing their earnings.
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181 changes: 181 additions & 0 deletions
181
src/main/java/codes/biscuit/sellchest/utils/ReflectionUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| package codes.biscuit.sellchest.utils; | ||
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| import org.bukkit.Bukkit; | ||
| import org.bukkit.entity.Player; | ||
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| import java.lang.reflect.Constructor; | ||
| import java.lang.reflect.Field; | ||
| import java.lang.reflect.Method; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| public class ReflectionUtils { | ||
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| /* | ||
| * The server version string to location NMS & OBC classes | ||
| */ | ||
| private static String versionString; | ||
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| /* | ||
| * Cache of NMS classes that we've searched for | ||
| */ | ||
| private static Map<String, Class<?>> loadedNMSClasses = new HashMap<>(); | ||
|
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| /* | ||
| * Cache of OBS classes that we've searched for | ||
| */ | ||
| private static Map<String, Class<?>> loadedOBCClasses = new HashMap<>(); | ||
|
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| /* | ||
| * Cache of methods that we've found in particular classes | ||
| */ | ||
| private static Map<Class<?>, Map<String, Method>> loadedMethods = new HashMap<>(); | ||
|
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| /* | ||
| * Cache of fields that we've found in particular classes | ||
| */ | ||
| private static Map<Class<?>, Map<String, Field>> loadedFields = new HashMap<>(); | ||
|
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| /** | ||
| * Gets the version string for NMS & OBC class paths | ||
| * | ||
| * @return The version string of OBC and NMS packages | ||
| */ | ||
| public static String getVersion() { | ||
| if (versionString == null) { | ||
| String name = Bukkit.getServer().getClass().getPackage().getName(); | ||
| versionString = name.substring(name.lastIndexOf('.') + 1) + "."; | ||
| } | ||
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| return versionString; | ||
| } | ||
|
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| /** | ||
| * Get an NMS Class | ||
| * | ||
| * @param nmsClassName The name of the class | ||
| * @return The class | ||
| */ | ||
| public static Class<?> getNMSClass(String nmsClassName) { | ||
| if (loadedNMSClasses.containsKey(nmsClassName)) { | ||
| return loadedNMSClasses.get(nmsClassName); | ||
| } | ||
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| String clazzName = "net.minecraft.server." + getVersion() + nmsClassName; | ||
| Class<?> clazz; | ||
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| try { | ||
| clazz = Class.forName(clazzName); | ||
| } catch (Throwable t) { | ||
| t.printStackTrace(); | ||
| return loadedNMSClasses.put(nmsClassName, null); | ||
| } | ||
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| loadedNMSClasses.put(nmsClassName, clazz); | ||
| return clazz; | ||
| } | ||
|
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| /** | ||
| * Get a class from the org.bukkit.craftbukkit package | ||
| * | ||
| * @param obcClassName the path to the class | ||
| * @return the found class at the specified path | ||
| */ | ||
| public synchronized static Class<?> getOBCClass(String obcClassName) { | ||
| if (loadedOBCClasses.containsKey(obcClassName)) { | ||
| return loadedOBCClasses.get(obcClassName); | ||
| } | ||
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| String clazzName = "org.bukkit.craftbukkit." + getVersion() + obcClassName; | ||
| Class<?> clazz; | ||
|
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| try { | ||
| clazz = Class.forName(clazzName); | ||
| } catch (Throwable t) { | ||
| t.printStackTrace(); | ||
| loadedOBCClasses.put(obcClassName, null); | ||
| return null; | ||
| } | ||
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| loadedOBCClasses.put(obcClassName, clazz); | ||
| return clazz; | ||
| } | ||
|
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| /** | ||
| * Get a classes constructor | ||
| * | ||
| * @param clazz The constructor class | ||
| * @param params The parameters in the constructor | ||
| * @return The constructor object | ||
| */ | ||
| public static Constructor<?> getConstructor(Class<?> clazz, Class<?>... params) { | ||
| try { | ||
| return clazz.getDeclaredConstructor(params); | ||
| } catch (NoSuchMethodException e) { | ||
| return null; | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Get a method from a class that has the specific paramaters | ||
| * | ||
| * @param clazz The class we are searching | ||
| * @param methodName The name of the method | ||
| * @param params Any parameters that the method has | ||
| * @return The method with appropriate paramaters | ||
| */ | ||
| public static Method getMethod(Class<?> clazz, String methodName, Class<?>... params) { | ||
| if (!loadedMethods.containsKey(clazz)) { | ||
| loadedMethods.put(clazz, new HashMap<>()); | ||
| } | ||
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| Map<String, Method> methods = loadedMethods.get(clazz); | ||
|
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| if (methods.containsKey(methodName)) { | ||
| return methods.get(methodName); | ||
| } | ||
|
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| try { | ||
| Method method = clazz.getDeclaredMethod(methodName, params); | ||
| methods.put(methodName, method); | ||
| loadedMethods.put(clazz, methods); | ||
| return method; | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| methods.put(methodName, null); | ||
| loadedMethods.put(clazz, methods); | ||
| return null; | ||
| } | ||
| } | ||
|
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| /** | ||
| * Get a field with a particular name from a class | ||
| * | ||
| * @param clazz The class | ||
| * @param fieldName The name of the field | ||
| * @return The field object | ||
| */ | ||
| public static Field getField(Class<?> clazz, String fieldName) { | ||
| if (!loadedFields.containsKey(clazz)) { | ||
| loadedFields.put(clazz, new HashMap<>()); | ||
| } | ||
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| Map<String, Field> fields = loadedFields.get(clazz); | ||
|
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| if (fields.containsKey(fieldName)) { | ||
| return fields.get(fieldName); | ||
| } | ||
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| try { | ||
| Field field = clazz.getDeclaredField(fieldName); | ||
| fields.put(fieldName, field); | ||
| loadedFields.put(clazz, fields); | ||
| return field; | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| fields.put(fieldName, null); | ||
| loadedFields.put(clazz, fields); | ||
| return null; | ||
| } | ||
| } | ||
| } |
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