Add SupplierExporter (HTTP POST of Suppliers on startup)

Add throwable handling to azure base class

spring-cloud-function-web/src/test/java/org/springframework/cloud/function/web/source/SourceAutoConfigurationIntegrationTests.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.function.web.source;
+
+import java.util.function.Supplier;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.cloud.function.web.RestApplication;
+import org.springframework.cloud.function.web.source.SourceAutoConfigurationIntegrationTests.ApplicationConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = WebEnvironment.NONE)
+@ContextConfiguration(classes = { RestApplication.class, ApplicationConfiguration.class })
+public class SourceAutoConfigurationIntegrationTests {
+
+	@Autowired
+	private SupplierExporter forwarder;
+
+	@Test
+	public void fails() throws Exception {
+		int count = 0;
+		while(forwarder.isRunning() && count++<100) {
+			Thread.sleep(20);
+		}
+		// It completed
+		assertThat(forwarder.isRunning()).isFalse();
+		// But failed
+		assertThat(forwarder.isOk()).isFalse();
+	}
+
+	@EnableAutoConfiguration
+	@TestConfiguration
+	public static class ApplicationConfiguration {
+		@Bean
+		public Supplier<String> word() {
+			return () -> "foo";
+		}
+	}
+}

spring-cloud-function-web/src/test/java/org/springframework/cloud/function/web/source/WebAppIntegrationTests.java

@@ -0,0 +1,97 @@
+/*
+ * Copyright 2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.function.web.source;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+import java.util.function.Supplier;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.context.TestConfiguration;
+import org.springframework.cloud.function.web.RestApplication;
+import org.springframework.cloud.function.web.source.WebAppIntegrationTests.ApplicationConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, properties = {
+		"spring.main.web-application-type=reactive",
+		"spring.cloud.function.web.supplier.templateUrl=http://localhost:${local.server.port}/values",
+		// in a webapp we have to explicitly enable the export
+		"spring.cloud.function.web.supplier.enabled=true",
+		// manually so we know the webapp is listening when we start
+		"spring.cloud.function.web.supplier.autoStartup=false"})
+@ContextConfiguration(classes = { RestApplication.class, ApplicationConfiguration.class })
+public class WebAppIntegrationTests {
+	
+	private static Log logger = LogFactory.getLog(WebAppIntegrationTests.class);
+	
+	@Autowired
+	private SupplierExporter forwarder;
+
+	@Autowired
+	private ApplicationConfiguration app;
+
+	@Test
+	public void posts() throws Exception {
+		forwarder.start();
+		app.latch.await(10, TimeUnit.SECONDS);
+		assertThat(app.values).hasSize(1);
+	}
+
+	@EnableAutoConfiguration
+	@TestConfiguration
+	@RestController
+	public static class ApplicationConfiguration {
+		private List<String> values = new ArrayList<>();
+		private CountDownLatch latch = new CountDownLatch(1);
+
+		@Bean
+		public Supplier<String> word() {
+			return () -> "foo";
+		}
+
+		// An endpoint to catch the values being exported
+		@PostMapping("/values")
+		public String value(@RequestBody String body) {
+			logger.info("Body: " + body);
+			values.add(body);
+			latch.countDown();
+			return "ok";
+		}
+	}
+}