CorrelationID setting by 4financeIT

Below you can find people who helped to create this solution

Tomasz Nurkiewicz <tomasz.nurkiewicz@4finance.com>
Marcin Zajaczkowski <marcin.zajaczkowski@4finance.com>
Kamil Szymanski <kamil.szymanski@4finance.com>
Michal Chmielarz <michal.chmielarz@4finance.com>
Marcin Grzejszczak <marcin.grzejszczak@4finance.com>
Jakub Nabdralik <jakub.nabrdalik@4finance.com>
Urszula Choromanska <urszula.choromanska@4finance.com>
Tomasz Dziurko <tomasz.dziurko@4finance.com>
Tomasz Szymanski <tomasz.szymanski@4finance.com>
Adam Chudzik <adam.chudzik@4finance.com>

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/resttemplate/DefaultRestTemplateConfigurer.java

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+/*
+ * Copyright 2012-2015 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.sleuth.resttemplate;
+
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.List;
+
+/**
+ * Default configure of {@code RestTemplate} that adds a list {@code ClientHttpRequestInterceptor}
+ * to {@code RestTemplate}
+ *
+ * @see ClientHttpRequestInterceptor
+ * @see RestTemplate
+ *
+ * @author Marcin Grzejszczak, 4financeIT
+ */
+public class DefaultRestTemplateConfigurer implements RestTemplateConfigurer {
+
+	private final List<ClientHttpRequestInterceptor> clientHttpRequestInterceptors;
+
+	public DefaultRestTemplateConfigurer(List<ClientHttpRequestInterceptor> clientHttpRequestInterceptors) {
+		this.clientHttpRequestInterceptors = clientHttpRequestInterceptors;
+	}
+
+	@Override
+	public void modifyRestTemplate(RestTemplate restTemplate) {
+		for (ClientHttpRequestInterceptor clientHttpRequestInterceptor : clientHttpRequestInterceptors) {
+			restTemplate.getInterceptors().add(clientHttpRequestInterceptor);
+		}
+	}
+}

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/resttemplate/RestTemplateConfigurer.java

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+/*
+ * Copyright 2012-2015 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.sleuth.resttemplate;
+
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * Interface that allows to modify the {@code RestTemplate} parameters
+ *
+ * @see RestTemplate
+ *
+ * @author Marcin Grzejszczak, 4financeIT
+ */
+public interface RestTemplateConfigurer {
+
+	void modifyRestTemplate(RestTemplate restTemplate);
+}

spring-cloud-sleuth-core/src/main/java/org/springframework/cloud/sleuth/resttemplate/SleuthRestTemplateAutoConfiguration.java

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+/*
+ * Copyright 2012-2015 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.sleuth.resttemplate;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ *
+ * Autoconfiguration that sets up a {@code RestTemplate} as a bean if one is not present
+ * and performs its additional modification via a {@code RestTemplateConfigurer}.
+ *
+ * @author Marcin Grzejszczak, 4financeIT
+ */
+@Configuration
+@ConditionalOnWebApplication
+@ConditionalOnProperty(value = "spring.cloud.sleuth.resttemplate.enabled", matchIfMissing = true)
+public class SleuthRestTemplateAutoConfiguration {
+
+	@Configuration
+	protected static class RestTemplateConfig {
+
+		@Autowired
+		private List<ClientHttpRequestInterceptor> clientHttpRequestInterceptors = new ArrayList<>();
+
+		@Bean
+		@ConditionalOnMissingBean
+		public RestTemplate restTemplate() {
+			return new RestTemplate();
+		}
+
+		@Bean
+		@ConditionalOnMissingBean
+		public RestTemplateConfigurer restTemplateConfigurer(RestTemplate restTemplate) {
+			DefaultRestTemplateConfigurer configurer = new DefaultRestTemplateConfigurer(clientHttpRequestInterceptors);
+			configurer.modifyRestTemplate(restTemplate);
+			return configurer;
+		}
+	}
+
+}

spring-cloud-sleuth-core/src/main/resources/META-INF/spring.factories

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+# Auto Configuration
+org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
+org.springframework.cloud.sleuth.resttemplate.SleuthRestTemplateAutoConfiguration