Add Spring Integration. (#539)

buildSrc/src/main/java/Config.kt

@@ -48,6 +48,9 @@ object Config {
         val log4j2Core = "org.apache.logging.log4j:log4j-core:$log4j2Version"
 
         val springBootStarter = "org.springframework.boot:spring-boot-starter:$springBootVersion"
+        val springBootStarterTest = "org.springframework.boot:spring-boot-starter-test:$springBootVersion"
+        val springBootStarterWeb = "org.springframework.boot:spring-boot-starter-web:$springBootVersion"
+        val springBootStarterSecurity = "org.springframework.boot:spring-boot-starter-security:$springBootVersion"
 
         val springWeb = "org.springframework:spring-webmvc"
         val servletApi = "javax.servlet:javax.servlet-api"
@@ -68,17 +71,13 @@ object Config {
         val robolectric = "org.robolectric:robolectric:4.3.1"
         val mockitoKotlin = "com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0"
         val awaitility = "org.awaitility:awaitility-kotlin:4.0.3"
-        val springBootStarterTest = "org.springframework.boot:spring-boot-starter-test:$springBootVersion"
-        val springBootStarterWeb = "org.springframework.boot:spring-boot-starter-web:$springBootVersion"
-        val springBootStarterSecurity = "org.springframework.boot:spring-boot-starter-security:$springBootVersion"
     }
 
     object QualityPlugins {
         object Jacoco {
             val version = "0.8.5"
             val minimumCoverage = BigDecimal.valueOf(0.6)
         }
-        val jacocoVersion = "0.8.5"
         val spotless = "com.diffplug.spotless"
         val spotlessVersion = "5.1.0"
         val errorProne = "net.ltgt.errorprone"
@@ -95,6 +94,7 @@ object Config {
         val SENTRY_ANDROID_SDK_NAME = "$SENTRY_JAVA_SDK_NAME.android"
         val SENTRY_LOGBACK_SDK_NAME = "$SENTRY_JAVA_SDK_NAME.logback"
         val SENTRY_LOG4J2_SDK_NAME = "$SENTRY_JAVA_SDK_NAME.log4j2"
+        val SENTRY_SPRING_SDK_NAME = "$SENTRY_JAVA_SDK_NAME.spring"
         val SENTRY_SPRING_BOOT_SDK_NAME = "$SENTRY_JAVA_SDK_NAME.spring-boot"
         val group = "io.sentry"
         val description = "SDK for sentry.io"

sentry-core/src/main/java/io/sentry/core/Breadcrumb.java

@@ -43,6 +43,22 @@ public final class Breadcrumb implements Cloneable, IUnknownPropertiesConsumer {
     this.timestamp = timestamp;
   }
 
+  /**
+   * Creates HTTP breadcrumb.
+   *
+   * @param url - the request URL
+   * @param method - the request method
+   * @return the breadcrumb
+   */
+  public static @NotNull Breadcrumb http(final @NotNull String url, final @NotNull String method) {
+    final Breadcrumb breadcrumb = new Breadcrumb();
+    breadcrumb.setType("http");
+    breadcrumb.setCategory("http");
+    breadcrumb.setData("url", url);
+    breadcrumb.setData("method", method.toUpperCase(Locale.getDefault()));
+    return breadcrumb;
+  }
+
   /** Breadcrumb ctor */
   public Breadcrumb() {
     this(DateUtils.getCurrentDateTimeOrNull());

sentry-core/src/main/java/io/sentry/core/DuplicateEventDetectionEventProcessor.java

@@ -0,0 +1,75 @@
+package io.sentry.core;
+
+import io.sentry.core.exception.ExceptionMechanismException;
+import io.sentry.core.util.Objects;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/** Deduplicates events containing throwable that has been already processed. */
+public final class DuplicateEventDetectionEventProcessor implements EventProcessor {
+  private final WeakHashMap<Throwable, Object> capturedObjects = new WeakHashMap<>();
+  private final SentryOptions options;
+
+  public DuplicateEventDetectionEventProcessor(final @NotNull SentryOptions options) {
+    this.options = Objects.requireNonNull(options, "options are required");
+  }
+
+  @Override
+  public SentryEvent process(final @NotNull SentryEvent event, final @Nullable Object hint) {
+    final Throwable throwable = event.getThrowable();
+    if (throwable != null) {
+      if (throwable instanceof ExceptionMechanismException) {
+        final ExceptionMechanismException ex = (ExceptionMechanismException) throwable;
+        if (capturedObjects.containsKey(ex.getThrowable())) {
+          options
+              .getLogger()
+              .log(
+                  SentryLevel.DEBUG,
+                  "Duplicate Exception detected. Event %s will be discarded.",
+                  event.getEventId());
+          return null;
+        } else {
+          capturedObjects.put(ex.getThrowable(), null);
+        }
+      } else {
+        if (capturedObjects.containsKey(throwable)
+            || containsAnyKey(capturedObjects, allCauses(throwable))) {
+          options
+              .getLogger()
+              .log(
+                  SentryLevel.DEBUG,
+                  "Duplicate Exception detected. Event %s will be discarded.",
+                  event.getEventId());
+          return null;
+        } else {
+          capturedObjects.put(throwable, null);
+        }
+      }
+    }
+    return event;
+  }
+
+  private static <T> boolean containsAnyKey(
+      final @NotNull Map<T, Object> map, final @NotNull List<T> list) {
+    for (T entry : list) {
+      if (map.containsKey(entry)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  private static @NotNull List<Throwable> allCauses(final @NotNull Throwable throwable) {
+    final List<Throwable> causes = new ArrayList<>();
+    Throwable ex = throwable;
+    while (ex.getCause() != null) {
+      causes.add(ex.getCause());
+      ex = ex.getCause();
+    }
+    return causes;
+  }
+}

sentry-core/src/main/java/io/sentry/core/SentryOptions.java

@@ -1047,6 +1047,7 @@ public SentryOptions() {
     integrations.add(new ShutdownHookIntegration());
 
     eventProcessors.add(new MainEventProcessor(this));
+    eventProcessors.add(new DuplicateEventDetectionEventProcessor(this));
 
     setSentryClientName(BuildConfig.SENTRY_JAVA_SDK_NAME + "/" + BuildConfig.VERSION_NAME);
     setSdkVersion(createSdkVersion());

sentry-core/src/test/java/io/sentry/core/BreadcrumbTest.kt

@@ -98,4 +98,13 @@ class BreadcrumbTest {
         val breadcrumb = Breadcrumb("this is a test")
         assertEquals("this is a test", breadcrumb.message)
     }
+
+    @Test
+    fun `creates HTTP breadcrumb`() {
+        val breadcrumb = Breadcrumb.http("http://example.com", "POST")
+        assertEquals("http://example.com", breadcrumb.data["url"])
+        assertEquals("POST", breadcrumb.data["method"])
+        assertEquals("http", breadcrumb.type)
+        assertEquals("http", breadcrumb.category)
+    }
 }

sentry-core/src/test/java/io/sentry/core/DuplicateEventDetectionEventProcessorTest.kt

@@ -0,0 +1,70 @@
+package io.sentry.core
+
+import io.sentry.core.exception.ExceptionMechanismException
+import io.sentry.core.protocol.Mechanism
+import java.lang.RuntimeException
+import kotlin.test.Test
+import kotlin.test.assertNotNull
+import kotlin.test.assertNull
+
+class DuplicateEventDetectionEventProcessorTest {
+
+    val processor = DuplicateEventDetectionEventProcessor(SentryOptions())
+
+    @Test
+    fun `does not drop event if no previous event with same exception was processed`() {
+        processor.process(SentryEvent(), null)
+
+        val result = processor.process(SentryEvent(RuntimeException()), null)
+
+        assertNotNull(result)
+    }
+
+    @Test
+    fun `drops event with the same exception`() {
+        val event = SentryEvent(RuntimeException())
+        processor.process(event, null)
+
+        val result = processor.process(event, null)
+        assertNull(result)
+    }
+
+    @Test
+    fun `drops event with mechanism exception having an exception that has already been processed`() {
+        val event = SentryEvent(RuntimeException())
+        processor.process(event, null)
+
+        val result = processor.process(SentryEvent(ExceptionMechanismException(Mechanism(), event.throwable, null)), null)
+        assertNull(result)
+    }
+
+    @Test
+    fun `drops event with exception that has already been processed with event with mechanism exception`() {
+        val sentryEvent = SentryEvent(ExceptionMechanismException(Mechanism(), RuntimeException(), null))
+        processor.process(sentryEvent, null)
+
+        val result = processor.process(SentryEvent((sentryEvent.throwable as ExceptionMechanismException).throwable), null)
+
+        assertNull(result)
+    }
+
+    @Test
+    fun `drops event with the cause equal to exception in already processed event`() {
+        val event = SentryEvent(RuntimeException())
+        processor.process(event, null)
+
+        val result = processor.process(SentryEvent(RuntimeException(event.throwable)), null)
+
+        assertNull(result)
+    }
+
+    @Test
+    fun `drops event with any of the causes has been already processed`() {
+        val event = SentryEvent(RuntimeException())
+        processor.process(event, null)
+
+        val result = processor.process(SentryEvent(RuntimeException(RuntimeException(event.throwable))), null)
+
+        assertNull(result)
+    }
+}

sentry-samples/sentry-samples-spring-boot/build.gradle.kts

@@ -1,3 +1,4 @@
+import org.jetbrains.kotlin.config.KotlinCompilerVersion
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
@@ -16,14 +17,14 @@ repositories {
 }
 
 dependencies {
-    implementation("org.springframework.boot:spring-boot-starter-security")
-    implementation("org.springframework.boot:spring-boot-starter-web")
-    implementation("org.springframework.boot:spring-boot-starter")
+    implementation(Config.Libs.springBootStarterSecurity)
+    implementation(Config.Libs.springBootStarterWeb)
+    implementation(Config.Libs.springBootStarter)
     implementation("org.jetbrains.kotlin:kotlin-reflect")
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+    implementation(kotlin(Config.kotlinStdLib, KotlinCompilerVersion.VERSION))
     implementation(project(":sentry-spring-boot-starter"))
     implementation(project(":sentry-logback"))
-    testImplementation("org.springframework.boot:spring-boot-starter-test") {
+    testImplementation(Config.Libs.springBootStarterTest) {
         exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
     }
 }

sentry-samples/sentry-samples-spring-boot/src/main/java/io/sentry/samples/spring/boot/CustomEventProcessor.java

@@ -0,0 +1,35 @@
+package io.sentry.samples.spring.boot;
+
+import io.sentry.core.EventProcessor;
+import io.sentry.core.SentryEvent;
+import io.sentry.core.protocol.SentryRuntime;
+import org.jetbrains.annotations.Nullable;
+import org.springframework.stereotype.Component;
+
+/**
+ * Custom {@link EventProcessor} implementation lets modifying {@link SentryEvent}s before they are
+ * sent to Sentry.
+ */
+@Component
+public class CustomEventProcessor implements EventProcessor {
+  private final String javaVersion;
+  private final String javaVendor;
+
+  public CustomEventProcessor(String javaVersion, String javaVendor) {
+    this.javaVersion = javaVersion;
+    this.javaVendor = javaVendor;
+  }
+
+  public CustomEventProcessor() {
+    this(System.getProperty("java.version"), System.getProperty("java.vendor"));
+  }
+
+  @Override
+  public SentryEvent process(SentryEvent event, @Nullable Object hint) {
+    final SentryRuntime runtime = new SentryRuntime();
+    runtime.setVersion(javaVersion);
+    runtime.setName(javaVendor);
+    event.getContexts().setRuntime(runtime);
+    return event;
+  }
+}

sentry-samples/sentry-samples-spring-boot/src/main/java/io/sentry/samples/spring/boot/Person.java

@@ -0,0 +1,24 @@
+package io.sentry.samples.spring.boot;
+
+public class Person {
+  private final String firstName;
+  private final String lastName;
+
+  public Person(String firstName, String lastName) {
+    this.firstName = firstName;
+    this.lastName = lastName;
+  }
+
+  public String getFirstName() {
+    return firstName;
+  }
+
+  public String getLastName() {
+    return lastName;
+  }
+
+  @Override
+  public String toString() {
+    return "Person{" + "firstName='" + firstName + '\'' + ", lastName='" + lastName + '\'' + '}';
+  }
+}

sentry-samples/sentry-samples-spring-boot/src/main/java/io/sentry/samples/spring/boot/PersonController.java

@@ -0,0 +1,28 @@
+package io.sentry.samples.spring.boot;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/person/")
+public class PersonController {
+  private static final Logger LOGGER = LoggerFactory.getLogger(PersonController.class);
+
+  @GetMapping("{id}")
+  Person person(@PathVariable Long id) {
+    LOGGER.info("Loading person with id={}", id);
+    throw new IllegalArgumentException("Something went wrong [id=" + id + "]");
+  }
+
+  @PostMapping
+  Person create(@RequestBody Person person) {
+    LOGGER.warn("Creating person: {}", person);
+    return person;
+  }
+}