feat(mq-starter-core): 自动装配 + spring.factories

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

mq-starter-core/src/main/java/com/njcn/mq/autoconfig/MqCoreAutoConfiguration.java

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+package com.njcn.mq.autoconfig;
+import com.njcn.mq.container.MqListenerAnnotationBeanPostProcessor;
+import com.njcn.mq.container.MqListenerRegistry;
+import com.njcn.mq.core.DefaultMqTemplate;
+import com.njcn.mq.core.MqTemplate;
+import com.njcn.mq.spi.MqDriver;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class MqCoreAutoConfiguration {
+
+    @Bean
+    public static MqListenerAnnotationBeanPostProcessor mqListenerAnnotationBeanPostProcessor() {
+        return new MqListenerAnnotationBeanPostProcessor();
+    }
+
+    @Bean
+    @ConditionalOnBean(MqDriver.class)
+    @ConditionalOnMissingBean
+    public MqTemplate mqTemplate(MqDriver driver) {
+        return new DefaultMqTemplate(driver);
+    }
+
+    @Bean
+    @ConditionalOnBean(MqDriver.class)
+    @ConditionalOnMissingBean
+    public MqListenerRegistry mqListenerRegistry(MqDriver driver, MqListenerAnnotationBeanPostProcessor bpp) {
+        return new MqListenerRegistry(driver, bpp.getEndpoints());
+    }
+}

mq-starter-core/src/main/resources/META-INF/spring.factories

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+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+com.njcn.mq.autoconfig.MqCoreAutoConfiguration

mq-starter-core/src/test/java/com/njcn/mq/autoconfig/MqCoreAutoConfigurationTest.java

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+package com.njcn.mq.autoconfig;
+import com.njcn.mq.core.MqMessage;
+import com.njcn.mq.core.MqTemplate;
+import com.njcn.mq.container.MqListenerRegistry;
+import com.njcn.mq.spi.MqDriver;
+import com.njcn.mq.spi.MqSubscription;
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.test.context.runner.ApplicationContextRunner;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import static org.assertj.core.api.Assertions.assertThat;
+
+class MqCoreAutoConfigurationTest {
+    @Configuration static class StubDriverConfig {
+        @Bean MqDriver driver() { return new MqDriver() {
+            public void send(String t, MqMessage m) {} public void subscribe(MqSubscription s) {} public void stop() {} }; }
+    }
+    @Test
+    void wiresTemplateAndRegistry_whenDriverPresent() {
+        new ApplicationContextRunner()
+            .withConfiguration(AutoConfigurations.of(MqCoreAutoConfiguration.class))
+            .withUserConfiguration(StubDriverConfig.class)
+            .run(ctx -> {
+                assertThat(ctx).hasSingleBean(MqTemplate.class);
+                assertThat(ctx).hasSingleBean(MqListenerRegistry.class);
+            });
+    }
+    @Test
+    void noTemplate_whenNoDriver() {
+        new ApplicationContextRunner()
+            .withConfiguration(AutoConfigurations.of(MqCoreAutoConfiguration.class))
+            .run(ctx -> assertThat(ctx).doesNotHaveBean(MqTemplate.class));
+    }
+}