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Add operator map to Plugin class, and use it in PluginManager.

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This commit is contained in:
Danila Fedorin
2017-07-27 10:38:18 -07:00
parent 189f8c6e15
commit 79e85832ce
2 changed files with 88 additions and 20 deletions
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47
src/org/nwapw/abacus/plugin/PluginManager.java
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@@ -1,10 +1,10 @@
package org.nwapw.abacus.plugin;
import org.nwapw.abacus.function.Function;
import org.nwapw.abacus.function.Operator;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.*;
/**
* A class that controls instances of plugins, allowing for them
@@ -21,6 +21,11 @@ public class PluginManager {
* that is, found in a plugin and returned.
*/
private HashMap<String, Function> cachedFunctions;
/**
* List of operators tha have been cached,
* that is, found in a plugin and returned.
*/
private HashMap<String, Operator> cachedOperators;
/**
* Creates a new plugin manager.
@@ -30,25 +35,39 @@ public class PluginManager {
cachedFunctions = new HashMap<>();
}
private static <T> T searchCached(Collection<Plugin> plugins, Map<String, T> cache,
java.util.function.Function<Plugin, Set<String>> setFunction,
java.util.function.BiFunction<Plugin, String, T> getFunction,
String name){
if(cache.containsKey(name)) return cache.get(name);
T loadedValue = null;
for(Plugin plugin : plugins){
if(setFunction.apply(plugin).contains(name)){
loadedValue = getFunction.apply(plugin, name);
break;
}
}
cache.put(name, loadedValue);
return loadedValue;
}
/**
* Gets a function under the given name.
* @param name the name of the function
* @return the function under the given name.
*/
public Function functionFor(String name){
if(cachedFunctions.containsKey(name)) {
return cachedFunctions.get(name);
}
return searchCached(plugins, cachedFunctions, Plugin::providedFunctions, Plugin::getFunction, name);
}
Function loadedFunction = null;
for(Plugin plugin : plugins){
if(plugin.hasFunction(name)){
loadedFunction = plugin.getFunction(name);
break;
}
}
cachedFunctions.put(name, loadedFunction);
return loadedFunction;
/**
* Gets an operator under the given name.
* @param name the name of the operator.
* @return the operator under the given name.
*/
public Operator operatorFor(String name){
return searchCached(plugins, cachedOperators, Plugin::providedOperators, Plugin::getOperator, name);
}
/**