spring增强抽象工厂

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/after/FormDataHandlerFactory.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.after;
+
+import org.springframework.stereotype.Component;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean.FormDataHandler;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 14:14
+ */
+@Component
+public class FormDataHandlerFactory extends StrategyFactory<String, FormDataHandler> {
+	/**
+	 * 获取策略的类型（交给子类去实现）
+	 *
+	 * @return 策略的类型
+	 */
+	@Override
+	protected Class<FormDataHandler> getStrategyType() {
+		return FormDataHandler.class;
+	}
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/after/FormItemConverterFactory.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.after;
+
+import org.springframework.stereotype.Component;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean.FormItemConverter;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean.FormItemTypeEnum;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 14:17
+ */
+@Component
+public class FormItemConverterFactory extends StrategyFactory<FormItemTypeEnum, FormItemConverter> {
+	/**
+	 * 获取策略的类型（交给子类去实现）
+	 *
+	 * @return 策略的类型
+	 */
+	@Override
+	protected Class<FormItemConverter> getStrategyType() {
+		return FormItemConverter.class;
+	}
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/after/Strategy.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.after;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:42
+ */
+public interface Strategy<T> {
+
+	/**
+	 * 获得策略的标识
+	 */
+	T getId();
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/after/StrategyFactory.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.after;
+
+import com.google.common.collect.Maps;
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+
+import java.util.Collection;
+import java.util.Map;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:42
+ */
+public abstract class StrategyFactory<T, S extends Strategy<T>> implements InitializingBean, ApplicationContextAware {
+
+	private Map<T, S> strategyMap;
+
+	private ApplicationContext appContext;
+
+	/**
+	 * 根据策略 id 获得对应的策略的 Bean
+	 *
+	 * @param id 策略 id
+	 * @return 策略的 Bean
+	 */
+	public S getStrategy(T id) {
+		return strategyMap.get(id);
+	}
+
+	/**
+	 * 获取策略的类型（交给子类去实现）
+	 *
+	 * @return 策略的类型
+	 */
+	protected abstract Class<S> getStrategyType();
+
+
+	@Override
+	public void afterPropertiesSet() throws Exception {
+		// 获取 Spring 容器中，所有 S 类型的 Bean
+		Collection<S> strategies = appContext.getBeansOfType(getStrategyType()).values();
+
+		strategyMap = Maps.newHashMapWithExpectedSize(strategies.size());
+
+		// 将所有 S 类型的 Bean 放入到 strategyMap 中
+		for (final S strategy : strategies) {
+			T id = strategy.getId();
+			strategyMap.put(id, strategy);
+		}
+	}
+
+	@Override
+	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+		appContext = applicationContext;
+	}
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/bean/CommonResponse.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 14:16
+ */
+public class CommonResponse<T> {
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/bean/FormDataHandler.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean;
+
+import top.fjy8018.designpattern.pattern.behavior.strategy.spring.FormSubmitRequest;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.after.Strategy;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:37
+ */
+public interface FormDataHandler extends Strategy<String> {
+
+	/**
+	 * 获得策略的标识
+	 */
+	@Override
+	default String getId() {
+		return getFormCode();
+	}
+
+	String getFormCode();
+
+	CommonResponse<Object> submit(FormSubmitRequest request);
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/bean/FormItemConverter.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean;
+
+import top.fjy8018.designpattern.pattern.behavior.templatemethod.spring.bean.FormItem;
+import top.fjy8018.designpattern.pattern.behavior.templatemethod.spring.bean.FormItemConfig;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.after.Strategy;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:40
+ */
+public interface FormItemConverter extends Strategy<FormItemTypeEnum> {
+
+	/**
+	 * 获得策略的标识
+	 */
+	@Override
+	default FormItemTypeEnum getId() {
+		return getType();
+	}
+
+	FormItemTypeEnum getType();
+
+	FormItem convert(FormItemConfig config);
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/bean/FormItemTypeEnum.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:39
+ */
+public enum FormItemTypeEnum {
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/before/FormDataHandlerFactory.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.before;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean.FormDataHandler;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:36
+ */
+@Component
+public class FormDataHandlerFactory {
+
+	private static final
+	Map<String, FormDataHandler> FORM_DATA_HANDLER_MAP = new HashMap<>(16);
+
+	/**
+	 * 根据表单标识，获取对应的 Handler
+	 *
+	 * @param formCode 表单标识
+	 * @return 表单对应的 Handler
+	 */
+	public FormDataHandler getHandler(String formCode) {
+		return FORM_DATA_HANDLER_MAP.get(formCode);
+	}
+
+	@Autowired
+	public void setFormDataHandlers(List<FormDataHandler> handlers) {
+		for (FormDataHandler handler : handlers) {
+			FORM_DATA_HANDLER_MAP.put(handler.getFormCode(), handler);
+		}
+	}
+}

src/main/java/top/fjy8018/designpattern/pattern/creational/factorymethod/spring/before/FormItemConverterFactory.java

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+package top.fjy8018.designpattern.pattern.creational.factorymethod.spring.before;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean.FormItemConverter;
+import top.fjy8018.designpattern.pattern.creational.factorymethod.spring.bean.FormItemTypeEnum;
+
+import java.util.EnumMap;
+import java.util.List;
+
+/**
+ * TODO:
+ *
+ * @author F嘉阳
+ * @date 2022/4/8 13:38
+ */
+@Component
+public class FormItemConverterFactory {
+
+	private static final
+	EnumMap<FormItemTypeEnum, FormItemConverter> CONVERTER_MAP = new EnumMap<>(FormItemTypeEnum.class);
+
+	/**
+	 * 根据表单项类型获得对应的转换器
+	 *
+	 * @param type 表单项类型
+	 * @return 表单项转换器
+	 */
+	public FormItemConverter getConverter(FormItemTypeEnum type) {
+		return CONVERTER_MAP.get(type);
+	}
+
+	@Autowired
+	public void setConverters(List<FormItemConverter> converters) {
+		for (final FormItemConverter converter : converters) {
+			CONVERTER_MAP.put(converter.getType(), converter);
+		}
+	}
+}