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Improve widgets' attributes parsing engine

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Bartłomiej Przemysław Pluta
2022-08-25 18:23:25 +02:00
parent 43c36a30ec
commit 7d8848c6e5
6 changed files with 164 additions and 30 deletions
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109
engine/src/main/java/com/bartlomiejpluta/base/engine/gui/xml/inflater/DefaultInflater.java
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@@ -14,16 +14,14 @@ import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.File;
import java.io.InputStream;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Stream;
@org.springframework.stereotype.Component
public class DefaultInflater implements Inflater {
private static final String[] IMPORTS = Stream.of(GUI.class, SizeMode.class, WindowPosition.class)
.map(Class::getCanonicalName)
.toArray(String[]::new);
private final DocumentBuilder builder;
private final ClassLoader loader;
@@ -91,11 +89,11 @@ public class DefaultInflater implements Inflater {
}
var canonicalName = name
.replaceAll("\\*", "")
.replaceAll("\\.+", ".")
.replaceAll("-+", "\\$");
.replaceAll("\\*", "")
.replaceAll("\\.+", ".")
.replaceAll("-+", "\\$");
var windowClass = loader.loadClass(canonicalName);
var windowClass = loader.<Window>loadClass(canonicalName);
var window = (Window) windowClass.getConstructor(Context.class, GUI.class, Map.class).newInstance(context, gui, refs);
var attributes = root.getAttributes();
@@ -109,10 +107,7 @@ public class DefaultInflater implements Inflater {
continue;
}
var setterName = createSetterMethodName(attribute.getLocalName());
var value = parseValue(attribute.getNodeValue());
var setter = windowClass.getMethod(setterName, value.getClass());
setter.invoke(window, value);
setAttribute(windowClass, window, attribute);
}
// Parse window content
@@ -143,6 +138,22 @@ public class DefaultInflater implements Inflater {
return window;
}
private void setAttribute(Class<? extends Widget> clazz, Widget widget, Node attribute) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
for (var setter : clazz.getMethods()) {
if (setter.isAnnotationPresent(Attribute.class) && setter.getAnnotation(Attribute.class).value().equals(attribute.getLocalName()) && setter.getParameterCount() == 1) {
var value = parseSimpleValue(setter, attribute.getNodeValue());
setter.invoke(widget, value);
return;
}
}
var setterName = createSetterMethodName(attribute.getLocalName());
var value = parseValue(attribute.getNodeValue());
var setter = clazz.getMethod(setterName, value.getClass());
setter.invoke(widget, value);
}
private void invokeInflatableHook(Widget widget) {
if (widget instanceof Inflatable) {
((Inflatable) widget).onInflate();
@@ -187,11 +198,11 @@ public class DefaultInflater implements Inflater {
}
var canonicalName = name
.replaceAll("\\*", "")
.replaceAll("\\.+", ".")
.replaceAll("-+", "\\$");
.replaceAll("\\*", "")
.replaceAll("\\.+", ".")
.replaceAll("-+", "\\$");
var componentClass = loader.loadClass(canonicalName);
var componentClass = loader.<Component>loadClass(canonicalName);
var component = createComponent(componentClass, node.getAttributes(), refs, context, gui);
var children = node.getChildNodes();
@@ -221,7 +232,7 @@ public class DefaultInflater implements Inflater {
}
@SneakyThrows
private Component createComponent(Class<?> componentClass, NamedNodeMap attributes, Map<String, Component> refs, Context context, GUI gui) {
private Component createComponent(Class<? extends Widget> componentClass, NamedNodeMap attributes, Map<String, Component> refs, Context context, GUI gui) {
var component = (Component) componentClass.getConstructor(Context.class, GUI.class).newInstance(context, gui);
// Set attributes via setter methods
@@ -239,10 +250,7 @@ public class DefaultInflater implements Inflater {
continue;
}
var setterName = createSetterMethodName(attribute.getLocalName());
var value = parseValue(attribute.getNodeValue());
var setter = componentClass.getMethod(setterName, value.getClass());
setter.invoke(component, value);
setAttribute(componentClass, component, attribute);
}
return component;
@@ -252,10 +260,63 @@ public class DefaultInflater implements Inflater {
return "set" + name.substring(0, 1).toUpperCase() + name.substring(1);
}
private static Object parseSimpleValue(Method method, String value) {
var type = method.getParameterTypes()[0];
if (type.isArray()) {
var arrayType = type.getComponentType();
var items = value.split("\\|");
var values = Array.newInstance(arrayType, items.length);
for (int i = 0; i < items.length; ++i) {
Array.set(values, i, parseSimpleValue(arrayType, items[i].trim()));
}
return values;
}
return parseSimpleValue(type, value);
}
@SuppressWarnings("unchecked")
private static Object parseSimpleValue(Class<?> type, String value) {
if (type == String.class) {
return value;
}
if (type == Short.TYPE || type == Short.class) {
return Short.valueOf(value);
}
if (type == Integer.TYPE || type == Integer.class) {
return Integer.valueOf(value);
}
if (type == Long.TYPE || type == Long.class) {
return Long.valueOf(value);
}
if (type == Boolean.TYPE || type == Boolean.class) {
return Boolean.valueOf(value);
}
if (type == Float.TYPE || type == Float.class) {
return Float.valueOf(value);
}
if (type == Double.TYPE || type == Double.class) {
return Double.valueOf(value);
}
if (type.isEnum()) {
return Enum.valueOf((Class<? extends Enum>) type, value.toUpperCase());
}
throw new AppException("Attribute of type [" + type.getCanonicalName() + "] is not supported");
}
@SneakyThrows
private Object parseValue(String value) {
private static Object parseValue(String value) {
var evaluator = new ExpressionEvaluator();
evaluator.setDefaultImports(IMPORTS);
evaluator.cook(value);
return evaluator.evaluate();
}