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https://github.com/DanilaFe/abacus
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Rename load to onLoad and add onDisable to plugin.
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7d822a3e77
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@ -28,6 +28,10 @@ public abstract class Plugin {
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* not inside this package,
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*/
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private PluginManager manager;
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/**
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* Whether this plugin has been loaded.
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*/
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private boolean enabled;
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private Plugin(){ }
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@ -38,6 +42,8 @@ public abstract class Plugin {
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public Plugin(PluginManager manager) {
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this.manager = manager;
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functions = new HashMap<>();
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operators = new HashMap<>();
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enabled = false;
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}
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/**
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@ -74,6 +80,28 @@ public abstract class Plugin {
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return operators.get(operatorName);
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}
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/**
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* Enables the function, loading the necessary instances
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* of functions.
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*/
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public final void enable(){
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if(enabled) return;
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onEnable();
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enabled = true;
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}
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/**
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* Disables the plugin, clearing loaded data store by default
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* and calling its disable() method.
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*/
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public final void disable(){
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if(!enabled) return;
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onDisable();
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functions.clear();
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operators.clear();
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enabled = false;
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}
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/**
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* To be used in load(). Registers a function abstract class with the
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* plugin internally, which makes it accessible to the plugin manager.
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@ -132,6 +160,12 @@ public abstract class Plugin {
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* are supposed to register the functions they provide and do any other
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* necessary setup.
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*/
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public abstract void load();
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public abstract void onEnable();
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/**
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* Abstract method overridden by the plugin implementation, in which the plugins
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* are supposed to dispose of loaded functions, operators, and macros.
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*/
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public abstract void onDisable();
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}
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@ -26,6 +26,18 @@ public class PluginManager {
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* that is, found in a plugin and returned.
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*/
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private HashMap<String, Operator> cachedOperators;
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/**
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* List of all functions loaded by the plugins.
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*/
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private HashSet<String> allFunctions;
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/**
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* List of all operators loaded by the plugins.
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*/
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private HashSet<String> allOperators;
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/**
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* The list of plugin listeners attached to this instance.
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*/
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private HashSet<PluginListener> listeners;
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/**
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* Creates a new plugin manager.
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@ -34,6 +46,8 @@ public class PluginManager {
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plugins = new ArrayList<>();
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cachedFunctions = new HashMap<>();
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cachedOperators = new HashMap<>();
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allFunctions = new HashSet<>();
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allOperators = new HashSet<>();
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}
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/**
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@ -89,9 +103,6 @@ public class PluginManager {
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* @param plugin the plugin to add.
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*/
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public void addInstantiated(Plugin plugin){
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plugin.load();
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cachedFunctions.clear();
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cachedOperators.clear();
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plugins.add(plugin);
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}
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@ -109,4 +120,47 @@ public class PluginManager {
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}
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}
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/**
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* Loads all the plugins in the PluginManager.
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*/
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public void load(){
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for(Plugin plugin : plugins) plugin.enable();
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for(Plugin plugin : plugins){
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allFunctions.addAll(plugin.providedFunctions());
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allOperators.addAll(plugin.providedOperators());
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}
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}
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/**
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* Unloads all the plugins in the PluginManager.
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*/
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public void unload(){
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for(Plugin plugin : plugins) plugin.disable();
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allFunctions.clear();
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allOperators.clear();
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}
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/**
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* Reloads all the plugins in the PluginManager.
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*/
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public void reload(){
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unload();
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reload();
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}
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/**
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* Gets all the functions loaded by the Plugin Manager.
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* @return the set of all functions that were loaded.
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*/
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public HashSet<String> getAllFunctions() {
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return allFunctions;
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}
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/**
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* Gets all the operators loaded by the Plugin Manager.
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* @return the set of all operators that were loaded.
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*/
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public HashSet<String> getAllOperators() {
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return allOperators;
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}
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}
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@ -17,7 +17,7 @@ public class StandardPlugin extends Plugin {
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}
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@Override
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public void load() {
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public void onEnable() {
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registerFunction("+", new Function() {
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@Override
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protected boolean matchesParams(NumberInterface[] params) {
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@ -108,6 +108,11 @@ public class StandardPlugin extends Plugin {
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});
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}
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@Override
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public void onDisable() {
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}
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/**
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* Returns the nth term of the Taylor series (centered at 0) of e^x
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* @param n the term required (n >= 0).
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