Add a FailureAnalyzer for ConfigDataNotFound

Add a `FailureAnalyzer` to deal with `ConfigDataNotFoundException`.

See gh-23633

Author: Miehau

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/context/config/ConfigDataLocationNotFoundExceptionFailureAnalyzer.java

@@ -0,0 +1,21 @@
+package org.springframework.boot.context.config;
+
+import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
+import org.springframework.boot.diagnostics.FailureAnalysis;
+
+/**
+ *
+ * An implementation of {@link AbstractFailureAnalyzer} to analyze failures caused by
+ * {@link ConfigDataLocationNotFoundException}.
+ *
+ * @author Michal Mlak
+ */
+public class ConfigDataLocationNotFoundExceptionFailureAnalyzer
+		extends AbstractFailureAnalyzer<ConfigDataLocationNotFoundException> {
+
+	@Override
+	protected FailureAnalysis analyze(Throwable rootFailure, ConfigDataLocationNotFoundException cause) {
+		return new FailureAnalysis(cause.getMessage(), null, cause);
+	}
+
+}

spring-boot-project/spring-boot/src/main/resources/META-INF/spring.factories

@@ -74,7 +74,8 @@ org.springframework.boot.diagnostics.analyzer.ValidationExceptionFailureAnalyzer
 org.springframework.boot.diagnostics.analyzer.InvalidConfigurationPropertyNameFailureAnalyzer,\
 org.springframework.boot.diagnostics.analyzer.InvalidConfigurationPropertyValueFailureAnalyzer,\
 org.springframework.boot.diagnostics.analyzer.PatternParseFailureAnalyzer,\
-org.springframework.boot.liquibase.LiquibaseChangelogMissingFailureAnalyzer
+org.springframework.boot.liquibase.LiquibaseChangelogMissingFailureAnalyzer,\
+org.springframework.boot.context.config.ConfigDataLocationNotFoundExceptionFailureAnalyzer
 
 # Failure Analysis Reporters
 org.springframework.boot.diagnostics.FailureAnalysisReporter=\

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/config/ConfigDataLocationNotFoundExceptionFailureAnalyzerTests.java

@@ -0,0 +1,30 @@
+package org.springframework.boot.context.config;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.diagnostics.FailureAnalysis;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+/**
+ *
+ * Tests for {@link ConfigDataLocationNotFoundExceptionFailureAnalyzer}
+ *
+ * @author Michal Mlak
+ */
+class ConfigDataLocationNotFoundExceptionFailureAnalyzerTests {
+
+	private final ConfigDataLocationNotFoundExceptionFailureAnalyzer analyzer = new ConfigDataLocationNotFoundExceptionFailureAnalyzer();
+
+	@Test
+	void failureAnalysisForConfigDataLocationNotFound() {
+		ConfigDataLocation location = mock(ConfigDataLocation.class);
+		ConfigDataLocationNotFoundException exception = new ConfigDataLocationNotFoundException(location);
+
+		FailureAnalysis result = analyzer.analyze(exception);
+
+		assertThat(result.getDescription()).isEqualTo("Config data location '" + location + "' does not exist");
+		assertThat(result.getAction()).isNull();
+	}
+
+}