mirror of
https://github.com/DanilaFe/abacus
synced 2024-09-05 23:37:09 -07:00
Rewrite Abacus to be the central class of the application.
This commit is contained in:
parent
a63a3b6bae
commit
a16e85dfcd
|
@ -1,46 +1,148 @@
|
|||
package org.nwapw.abacus;
|
||||
|
||||
import org.nwapw.abacus.plugin.PluginManager;
|
||||
//import org.nwapw.abacus.plugin.StandardPlugin;
|
||||
import org.nwapw.abacus.plugin.StandardPlugin;
|
||||
import org.nwapw.abacus.window.Window;
|
||||
import org.nwapw.abacus.function.Operator;
|
||||
import org.nwapw.abacus.number.NumberInterface;
|
||||
import org.nwapw.abacus.plugin.ClassFinder;
|
||||
import org.nwapw.abacus.plugin.PluginListener;
|
||||
import org.nwapw.abacus.plugin.PluginManager;
|
||||
import org.nwapw.abacus.plugin.StandardPlugin;
|
||||
import org.nwapw.abacus.tree.NumberReducer;
|
||||
import org.nwapw.abacus.tree.TreeBuilder;
|
||||
import org.nwapw.abacus.tree.TreeNode;
|
||||
import org.nwapw.abacus.window.Window;
|
||||
|
||||
import javax.swing.*;
|
||||
import java.io.IOException;
|
||||
import java.util.ArrayList;
|
||||
|
||||
public class Abacus {
|
||||
/**
|
||||
* The main calculator class. This is responsible
|
||||
* for piecing together all of the components, allowing
|
||||
* their interaction with each other.
|
||||
*/
|
||||
public class Abacus implements PluginListener {
|
||||
|
||||
/**
|
||||
* The main Abacus UI.
|
||||
*/
|
||||
private Window mainUi;
|
||||
private PluginManager manager;
|
||||
/**
|
||||
* The plugin manager responsible for
|
||||
* loading and unloading plugins,
|
||||
* and getting functions from them.
|
||||
*/
|
||||
private PluginManager pluginManager;
|
||||
/**
|
||||
* Tree builder built from plugin manager,
|
||||
* used to construct parse trees.
|
||||
*/
|
||||
private TreeBuilder treeBuilder;
|
||||
/**
|
||||
* The reducer used to evaluate the tree.
|
||||
*/
|
||||
private NumberReducer numberReducer;
|
||||
|
||||
/**
|
||||
* Creates a new instance of the Abacus calculator.
|
||||
*/
|
||||
public Abacus(){
|
||||
init();
|
||||
pluginManager = new PluginManager(this);
|
||||
mainUi = new Window(this);
|
||||
numberReducer = new NumberReducer(this);
|
||||
|
||||
pluginManager.addListener(this);
|
||||
pluginManager.addInstantiated(new StandardPlugin(pluginManager));
|
||||
try {
|
||||
ClassFinder.loadJars("plugins")
|
||||
.forEach(plugin -> pluginManager.addClass(plugin));
|
||||
} catch (IOException | ClassNotFoundException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
pluginManager.load();
|
||||
|
||||
mainUi.setVisible(true);
|
||||
}
|
||||
|
||||
private void init() {
|
||||
/**
|
||||
* Gets the current tree builder.
|
||||
* @return the main tree builder in this abacus instance.
|
||||
*/
|
||||
public TreeBuilder getTreeBuilder() {
|
||||
return treeBuilder;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the current plugin manager,
|
||||
* @return the plugin manager in this abacus instance.
|
||||
*/
|
||||
public PluginManager getPluginManager() {
|
||||
return pluginManager;
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the current UI.
|
||||
* @return the UI window in this abacus instance.
|
||||
*/
|
||||
public Window getMainUi() {
|
||||
return mainUi;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the reducer that is responsible for transforming
|
||||
* an expression into a number.
|
||||
* @return the number reducer in this abacus instance.
|
||||
*/
|
||||
public NumberReducer getNumberReducer() {
|
||||
return numberReducer;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parses a string into a tree structure using the main
|
||||
* tree builder.
|
||||
* @param input the input string to parse
|
||||
* @return the resulting tree, null if the tree builder or the produced tree are null.
|
||||
*/
|
||||
public TreeNode parseString(String input){
|
||||
if(treeBuilder == null) return null;
|
||||
return treeBuilder.fromString(input);
|
||||
}
|
||||
|
||||
/**
|
||||
* Evaluates the given tree using the main
|
||||
* number reducer.
|
||||
* @param tree the tree to reduce, must not be null.
|
||||
* @return the resulting number, or null of the reduction failed.
|
||||
*/
|
||||
public NumberInterface evaluateTree(TreeNode tree){
|
||||
return tree.reduce(numberReducer);
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onLoad(PluginManager manager) {
|
||||
treeBuilder = new TreeBuilder();
|
||||
for(String function : manager.getAllFunctions()){
|
||||
treeBuilder.registerFunction(function);
|
||||
}
|
||||
for(String operator : manager.getAllOperators()){
|
||||
Operator operatorObject = manager.operatorFor(operator);
|
||||
treeBuilder.registerOperator(operator,
|
||||
operatorObject.getAssociativity(),
|
||||
operatorObject.getType(),
|
||||
operatorObject.getPrecedence());
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onUnload(PluginManager manager) {
|
||||
treeBuilder = null;
|
||||
}
|
||||
|
||||
public static void main(String[] args){
|
||||
try {
|
||||
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
|
||||
} catch (ClassNotFoundException | InstantiationException | UnsupportedLookAndFeelException | IllegalAccessException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
manager = new PluginManager();
|
||||
manager.addInstantiated(new StandardPlugin(manager));
|
||||
try {
|
||||
ClassFinder.loadJars("plugins")
|
||||
.forEach(plugin -> manager.addClass(plugin));
|
||||
} catch (IOException | ClassNotFoundException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
mainUi = new Window(manager);
|
||||
mainUi.setVisible(true);
|
||||
manager.load();
|
||||
|
||||
}
|
||||
|
||||
public static void main(String[] args){
|
||||
new Abacus();
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
@ -1,5 +1,6 @@
|
|||
package org.nwapw.abacus.plugin;
|
||||
|
||||
import org.nwapw.abacus.Abacus;
|
||||
import org.nwapw.abacus.function.Function;
|
||||
import org.nwapw.abacus.function.Operator;
|
||||
|
||||
|
@ -42,11 +43,17 @@ public class PluginManager {
|
|||
* The list of plugin listeners attached to this instance.
|
||||
*/
|
||||
private Set<PluginListener> listeners;
|
||||
/**
|
||||
* The instance of Abacus that is used to interact with its other
|
||||
* components.
|
||||
*/
|
||||
private Abacus abacus;
|
||||
|
||||
/**
|
||||
* Creates a new plugin manager.
|
||||
*/
|
||||
public PluginManager(){
|
||||
public PluginManager(Abacus abacus){
|
||||
this.abacus = abacus;
|
||||
loadedPluginClasses = new HashSet<>();
|
||||
plugins = new HashSet<>();
|
||||
cachedFunctions = new HashMap<>();
|
||||
|
|
|
@ -1,8 +1,8 @@
|
|||
package org.nwapw.abacus.tree;
|
||||
|
||||
import org.nwapw.abacus.Abacus;
|
||||
import org.nwapw.abacus.function.Function;
|
||||
import org.nwapw.abacus.number.NumberInterface;
|
||||
import org.nwapw.abacus.plugin.PluginManager;
|
||||
|
||||
/**
|
||||
* A reducer implementation that turns a tree into a single number.
|
||||
|
@ -13,14 +13,14 @@ public class NumberReducer implements Reducer<NumberInterface> {
|
|||
/**
|
||||
* The plugin manager from which to draw the functions.
|
||||
*/
|
||||
private PluginManager manager;
|
||||
private Abacus abacus;
|
||||
|
||||
/**
|
||||
* Creates a new number reducer with the given plugin manager.
|
||||
* @param manager the plugin manager.
|
||||
* Creates a new number reducer.
|
||||
* @param abacus the calculator instance.
|
||||
*/
|
||||
public NumberReducer(PluginManager manager){
|
||||
this.manager = manager;
|
||||
public NumberReducer(Abacus abacus){
|
||||
this.abacus = abacus;
|
||||
}
|
||||
|
||||
@Override
|
||||
|
@ -30,12 +30,12 @@ public class NumberReducer implements Reducer<NumberInterface> {
|
|||
} else if(node instanceof BinaryInfixNode){
|
||||
NumberInterface left = (NumberInterface) children[0];
|
||||
NumberInterface right = (NumberInterface) children[1];
|
||||
Function function = manager.operatorFor(((BinaryInfixNode) node).getOperation()).getFunction();
|
||||
Function function = abacus.getPluginManager().operatorFor(((BinaryInfixNode) node).getOperation()).getFunction();
|
||||
if(function == null) return null;
|
||||
return function.apply(left, right);
|
||||
} else if(node instanceof UnaryPrefixNode) {
|
||||
NumberInterface child = (NumberInterface) children[0];
|
||||
Function functionn = manager.operatorFor(((UnaryPrefixNode) node).getOperation()).getFunction();
|
||||
Function functionn = abacus.getPluginManager().operatorFor(((UnaryPrefixNode) node).getOperation()).getFunction();
|
||||
if(functionn == null) return null;
|
||||
return functionn.apply(child);
|
||||
} else if(node instanceof FunctionNode){
|
||||
|
@ -43,7 +43,7 @@ public class NumberReducer implements Reducer<NumberInterface> {
|
|||
for(int i = 0; i < convertedChildren.length; i++){
|
||||
convertedChildren[i] = (NumberInterface) children[i];
|
||||
}
|
||||
Function function = manager.functionFor(((FunctionNode) node).getFunction());
|
||||
Function function = abacus.getPluginManager().functionFor(((FunctionNode) node).getFunction());
|
||||
if(function == null) return null;
|
||||
return function.apply(convertedChildren);
|
||||
}
|
||||
|
|
|
@ -1,11 +1,7 @@
|
|||
package org.nwapw.abacus.window;
|
||||
|
||||
import org.nwapw.abacus.function.Operator;
|
||||
import org.nwapw.abacus.Abacus;
|
||||
import org.nwapw.abacus.number.NumberInterface;
|
||||
import org.nwapw.abacus.plugin.PluginListener;
|
||||
import org.nwapw.abacus.plugin.PluginManager;
|
||||
import org.nwapw.abacus.tree.NumberReducer;
|
||||
import org.nwapw.abacus.tree.TreeBuilder;
|
||||
import org.nwapw.abacus.tree.TreeNode;
|
||||
|
||||
import javax.swing.*;
|
||||
|
@ -18,7 +14,7 @@ import java.awt.event.MouseEvent;
|
|||
/**
|
||||
* The main UI window for the calculator.
|
||||
*/
|
||||
public class Window extends JFrame implements PluginListener {
|
||||
public class Window extends JFrame {
|
||||
|
||||
private static final String CALC_STRING = "Calculate";
|
||||
private static final String SYNTAX_ERR_STRING = "Syntax Error";
|
||||
|
@ -47,18 +43,10 @@ public class Window extends JFrame implements PluginListener {
|
|||
};
|
||||
|
||||
/**
|
||||
* The plugin manager used to retrieve functions.
|
||||
* The instance of the Abacus class, used
|
||||
* for interaction with plugins and configuration.
|
||||
*/
|
||||
private PluginManager manager;
|
||||
/**
|
||||
* The builder used to construct the parse trees.
|
||||
*/
|
||||
private TreeBuilder builder;
|
||||
/**
|
||||
* The reducer used to evaluate the tree.
|
||||
*/
|
||||
private NumberReducer reducer;
|
||||
|
||||
private Abacus abacus;
|
||||
/**
|
||||
* The last output by the calculator.
|
||||
*/
|
||||
|
@ -130,15 +118,14 @@ public class Window extends JFrame implements PluginListener {
|
|||
* Action listener that causes the input to be evaluated.
|
||||
*/
|
||||
private ActionListener evaluateListener = (event) -> {
|
||||
if(builder == null) return;
|
||||
TreeNode parsedExpression = builder.fromString(inputField.getText());
|
||||
TreeNode parsedExpression = abacus.parseString(inputField.getText());
|
||||
if(parsedExpression == null){
|
||||
lastOutputArea.setText(SYNTAX_ERR_STRING);
|
||||
return;
|
||||
}
|
||||
NumberInterface numberInterface = parsedExpression.reduce(reducer);
|
||||
if(numberInterface == null){
|
||||
lastOutputArea.setText(EVAL_ERR_STRING);;
|
||||
NumberInterface numberInterface = abacus.evaluateTree(parsedExpression);
|
||||
if(numberInterface == null) {
|
||||
lastOutputArea.setText(EVAL_ERR_STRING);
|
||||
return;
|
||||
}
|
||||
lastOutput = numberInterface.toString();
|
||||
|
@ -159,13 +146,11 @@ public class Window extends JFrame implements PluginListener {
|
|||
|
||||
/**
|
||||
* Creates a new window with the given manager.
|
||||
* @param manager the manager to use.
|
||||
* @param abacus the calculator instance to interact with other components.
|
||||
*/
|
||||
public Window(PluginManager manager){
|
||||
public Window(Abacus abacus){
|
||||
this();
|
||||
this.manager = manager;
|
||||
manager.addListener(this);
|
||||
reducer = new NumberReducer(manager);
|
||||
this.abacus = abacus;
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -261,23 +246,4 @@ public class Window extends JFrame implements PluginListener {
|
|||
});
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onLoad(PluginManager manager) {
|
||||
builder = new TreeBuilder();
|
||||
for(String function : manager.getAllFunctions()){
|
||||
builder.registerFunction(function);
|
||||
}
|
||||
for(String operator : manager.getAllOperators()){
|
||||
Operator operatorObject = manager.operatorFor(operator);
|
||||
builder.registerOperator(operator,
|
||||
operatorObject.getAssociativity(),
|
||||
operatorObject.getType(),
|
||||
operatorObject.getPrecedence());
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onUnload(PluginManager manager) {
|
||||
builder = null;
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue
Block a user