chore: checkstyle formater & linter

examples/pom.xml

@@ -1,4 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2023 Amazon.com, Inc. or its affiliates.
+  ~ 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.
+  ~
+  -->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

examples/powertools-examples-cloudformation/infra/cdk/src/main/java/com/myorg/PowertoolsExamplesCloudformationCdkApp.java

@@ -7,8 +7,9 @@ public class PowertoolsExamplesCloudformationCdkApp {
     public static void main(final String[] args) {
         App app = new App();
 
-        new PowertoolsExamplesCloudformationCdkStack(app, "PowertoolsExamplesCloudformationCdkStack", StackProps.builder()
-                .build());
+        new PowertoolsExamplesCloudformationCdkStack(app, "PowertoolsExamplesCloudformationCdkStack",
+                StackProps.builder()
+                        .build());
 
         app.synth();
     }

examples/powertools-examples-cloudformation/src/main/java/helloworld/App.java

@@ -41,7 +41,8 @@ public App() {
     protected Response create(CloudFormationCustomResourceEvent cloudFormationCustomResourceEvent, Context context) {
         // Validate the CloudFormation Custom Resource event
         Objects.requireNonNull(cloudFormationCustomResourceEvent, "cloudFormationCustomResourceEvent cannot be null.");
-        Objects.requireNonNull(cloudFormationCustomResourceEvent.getResourceProperties().get("BucketName"), "BucketName cannot be null.");
+        Objects.requireNonNull(cloudFormationCustomResourceEvent.getResourceProperties().get("BucketName"),
+                "BucketName cannot be null.");
 
         log.info(cloudFormationCustomResourceEvent);
         String bucketName = (String) cloudFormationCustomResourceEvent.getResourceProperties().get("BucketName");
@@ -70,7 +71,8 @@ protected Response create(CloudFormationCustomResourceEvent cloudFormationCustom
     protected Response update(CloudFormationCustomResourceEvent cloudFormationCustomResourceEvent, Context context) {
         // Validate the CloudFormation Custom Resource event
         Objects.requireNonNull(cloudFormationCustomResourceEvent, "cloudFormationCustomResourceEvent cannot be null.");
-        Objects.requireNonNull(cloudFormationCustomResourceEvent.getResourceProperties().get("BucketName"), "BucketName cannot be null.");
+        Objects.requireNonNull(cloudFormationCustomResourceEvent.getResourceProperties().get("BucketName"),
+                "BucketName cannot be null.");
 
         log.info(cloudFormationCustomResourceEvent);
         // Get the physicalResourceId. physicalResourceId is the value returned to CloudFormation in the Create request, and passed in on subsequent requests (e.g. UPDATE or DELETE)
@@ -112,7 +114,8 @@ protected Response update(CloudFormationCustomResourceEvent cloudFormationCustom
     protected Response delete(CloudFormationCustomResourceEvent cloudFormationCustomResourceEvent, Context context) {
         // Validate the CloudFormation Custom Resource event
         Objects.requireNonNull(cloudFormationCustomResourceEvent, "cloudFormationCustomResourceEvent cannot be null.");
-        Objects.requireNonNull(cloudFormationCustomResourceEvent.getPhysicalResourceId(), "PhysicalResourceId cannot be null.");
+        Objects.requireNonNull(cloudFormationCustomResourceEvent.getPhysicalResourceId(),
+                "PhysicalResourceId cannot be null.");
 
         log.info(cloudFormationCustomResourceEvent);
         // Get the physicalResourceId. physicalResourceId is the value provided to CloudFormation in the Create request.
@@ -142,7 +145,8 @@ protected Response delete(CloudFormationCustomResourceEvent cloudFormationCustom
 
     private boolean bucketExists(String bucketName) {
         try {
-            HeadBucketResponse headBucketResponse = s3Client.headBucket(HeadBucketRequest.builder().bucket(bucketName).build());
+            HeadBucketResponse headBucketResponse =
+                    s3Client.headBucket(HeadBucketRequest.builder().bucket(bucketName).build());
             if (headBucketResponse.sdkHttpResponse().isSuccessful()) {
                 return true;
             }
@@ -157,7 +161,8 @@ private void createBucket(String bucketName) {
         S3Waiter waiter = s3Client.waiter();
         CreateBucketRequest createBucketRequest = CreateBucketRequest.builder().bucket(bucketName).build();
         s3Client.createBucket(createBucketRequest);
-        WaiterResponse<HeadBucketResponse> waiterResponse = waiter.waitUntilBucketExists(HeadBucketRequest.builder().bucket(bucketName).build());
+        WaiterResponse<HeadBucketResponse> waiterResponse =
+                waiter.waitUntilBucketExists(HeadBucketRequest.builder().bucket(bucketName).build());
         waiterResponse.matched().response().ifPresent(log::info);
         log.info("Bucket Created {}", bucketName);
     }

examples/powertools-examples-core/src/main/java/helloworld/App.java

@@ -1,34 +1,47 @@
+/*
+ * Copyright 2023 Amazon.com, Inc. or its affiliates.
+ * 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 helloworld;
 
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.net.URL;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.stream.Collectors;
+import static software.amazon.lambda.powertools.metrics.MetricsUtils.metricsLogger;
+import static software.amazon.lambda.powertools.metrics.MetricsUtils.withSingleMetric;
+import static software.amazon.lambda.powertools.tracing.TracingUtils.putMetadata;
+import static software.amazon.lambda.powertools.tracing.TracingUtils.withEntitySubsegment;
 
 import com.amazonaws.services.lambda.runtime.Context;
 import com.amazonaws.services.lambda.runtime.RequestHandler;
 import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyRequestEvent;
 import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;
 import com.amazonaws.xray.AWSXRay;
 import com.amazonaws.xray.entities.Entity;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Collectors;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import software.amazon.cloudwatchlogs.emf.model.DimensionSet;
 import software.amazon.cloudwatchlogs.emf.model.Unit;
-import software.amazon.lambda.powertools.logging.LoggingUtils;
 import software.amazon.lambda.powertools.logging.Logging;
+import software.amazon.lambda.powertools.logging.LoggingUtils;
 import software.amazon.lambda.powertools.metrics.Metrics;
 import software.amazon.lambda.powertools.tracing.CaptureMode;
-import software.amazon.lambda.powertools.tracing.TracingUtils;
 import software.amazon.lambda.powertools.tracing.Tracing;
-
-import static software.amazon.lambda.powertools.metrics.MetricsUtils.metricsLogger;
-import static software.amazon.lambda.powertools.metrics.MetricsUtils.withSingleMetric;
-import static software.amazon.lambda.powertools.tracing.TracingUtils.putMetadata;
-import static software.amazon.lambda.powertools.tracing.TracingUtils.withEntitySubsegment;
+import software.amazon.lambda.powertools.tracing.TracingUtils;
 
 /**
  * Handler for requests to Lambda function.
@@ -47,10 +60,11 @@ public APIGatewayProxyResponseEvent handleRequest(final APIGatewayProxyRequestEv
 
         metricsLogger().putMetric("CustomMetric1", 1, Unit.COUNT);
 
-        withSingleMetric("CustomMetrics2", 1, Unit.COUNT, "Another", (metric) -> {
-            metric.setDimensions(DimensionSet.of("AnotherService", "CustomService"));
-            metric.setDimensions(DimensionSet.of("AnotherService1", "CustomService1"));
-        });
+        withSingleMetric("CustomMetrics2", 1, Unit.COUNT, "Another", (metric) ->
+            {
+                metric.setDimensions(DimensionSet.of("AnotherService", "CustomService"));
+                metric.setDimensions(DimensionSet.of("AnotherService1", "CustomService1"));
+            });
 
         LoggingUtils.appendKey("test", "willBeLogged");
 
@@ -62,11 +76,12 @@ public APIGatewayProxyResponseEvent handleRequest(final APIGatewayProxyRequestEv
             TracingUtils.putAnnotation("Test", "New");
             String output = String.format("{ \"message\": \"hello world\", \"location\": \"%s\" }", pageContents);
 
-            TracingUtils.withSubsegment("loggingResponse", subsegment -> {
-                String sampled = "log something out";
-                log.info(sampled);
-                log.info(output);
-            });
+            TracingUtils.withSubsegment("loggingResponse", subsegment ->
+                {
+                    String sampled = "log something out";
+                    log.info(sampled);
+                    log.info(output);
+                });
 
             threadOption1();
 
@@ -91,10 +106,11 @@ private void threadOption1() throws InterruptedException {
 
     private void threadOption2() throws InterruptedException {
         Entity traceEntity = AWSXRay.getTraceEntity();
-        Thread anotherThread = new Thread(() -> withEntitySubsegment("inlineLog", traceEntity, subsegment -> {
-            String var = "somethingToProcess";
-            log.info("inside threaded logging inline {}", var);
-        }));
+        Thread anotherThread = new Thread(() -> withEntitySubsegment("inlineLog", traceEntity, subsegment ->
+            {
+                String var = "somethingToProcess";
+                log.info("inside threaded logging inline {}", var);
+            }));
         anotherThread.start();
         anotherThread.join();
     }

examples/powertools-examples-core/src/main/java/helloworld/AppStream.java

@@ -1,13 +1,26 @@
+/*
+ * Copyright 2023 Amazon.com, Inc. or its affiliates.
+ * 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 helloworld;
 
+import com.amazonaws.services.lambda.runtime.Context;
+import com.amazonaws.services.lambda.runtime.RequestStreamHandler;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.Map;
-
-import com.amazonaws.services.lambda.runtime.Context;
-import com.amazonaws.services.lambda.runtime.RequestStreamHandler;
-import com.fasterxml.jackson.databind.ObjectMapper;
 import software.amazon.lambda.powertools.logging.Logging;
 import software.amazon.lambda.powertools.metrics.Metrics;
 

examples/powertools-examples-core/src/test/java/helloworld/AppTest.java

@@ -1,43 +1,59 @@
+/*
+ * Copyright 2023 Amazon.com, Inc. or its affiliates.
+ * 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 helloworld;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
 import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyResponseEvent;
 import com.amazonaws.xray.AWSXRay;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-import static org.junit.Assert.*;
-
 public class AppTest {
 
-  @Before
-  public void setup() {
-    if(null == System.getenv("LAMBDA_TASK_ROOT")) {
-      AWSXRay.beginSegment("test");
+    @Before
+    public void setup() {
+        if (null == System.getenv("LAMBDA_TASK_ROOT")) {
+            AWSXRay.beginSegment("test");
+        }
     }
-  }
 
-  @After
-  public void tearDown() {
-    if (AWSXRay.getCurrentSubsegmentOptional().isPresent()) {
-      AWSXRay.endSubsegment();
+    @After
+    public void tearDown() {
+        if (AWSXRay.getCurrentSubsegmentOptional().isPresent()) {
+            AWSXRay.endSubsegment();
+        }
+
+        if (null == System.getenv("LAMBDA_TASK_ROOT")) {
+            AWSXRay.endSegment();
+        }
     }
 
-    if(null == System.getenv("LAMBDA_TASK_ROOT")) {
-      AWSXRay.endSegment();
+    @Test
+    public void successfulResponse() {
+        App app = new App();
+        APIGatewayProxyResponseEvent result = app.handleRequest(null, null);
+        assertEquals(result.getStatusCode().intValue(), 200);
+        assertEquals(result.getHeaders().get("Content-Type"), "application/json");
+        String content = result.getBody();
+        assertNotNull(content);
+        assertTrue(content.contains("\"message\""));
+        assertTrue(content.contains("\"hello world\""));
+        assertTrue(content.contains("\"location\""));
     }
-  }
-
-  @Test
-  public void successfulResponse() {
-    App app = new App();
-    APIGatewayProxyResponseEvent result = app.handleRequest(null, null);
-    assertEquals(result.getStatusCode().intValue(), 200);
-    assertEquals(result.getHeaders().get("Content-Type"), "application/json");
-    String content = result.getBody();
-    assertNotNull(content);
-    assertTrue(content.contains("\"message\""));
-    assertTrue(content.contains("\"hello world\""));
-    assertTrue(content.contains("\"location\""));
-  }
 }

examples/powertools-examples-idempotency/pom.xml

@@ -1,3 +1,17 @@
+<!--
+  ~ Copyright 2023 Amazon.com, Inc. or its affiliates.
+  ~ 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.
+  ~
+  -->
+
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.0</modelVersion>