fix(general): clean up typos and code (aws-powertools#62)

Author: michaelbrewer

.github/ISSUE_TEMPLATE/bug_report.md

@@ -41,6 +41,6 @@ assignees: ''
 
 > [How to enable debug mode](https://awslabs.github.io/aws-lambda-powertools-java/#debug-mode)**
 
-```java
+```text
 # paste logs here
 ```

docs/content/core/tracing.mdx

@@ -138,7 +138,7 @@ public class App implements RequestHandler<APIGatewayProxyRequestEvent, APIGatew
         Entity traceEntity = AWSXRay.getTraceEntity();
 
         Thread anotherThread = new Thread(() -> withEntitySubsegment("inlineLog", traceEntity, subsegment -> {
-            // Business logic in sperate thread
+            // Business logic in separate thread
         }));
     }
 }

powertools-core/src/main/java/software/amazon/lambda/powertools/core/internal/LambdaHandlerProcessor.java

@@ -13,30 +13,34 @@
  */
 package software.amazon.lambda.powertools.core.internal;
 
-import java.io.InputStream;
-import java.io.OutputStream;
-
 import com.amazonaws.services.lambda.runtime.Context;
 import com.amazonaws.services.lambda.runtime.RequestHandler;
 import com.amazonaws.services.lambda.runtime.RequestStreamHandler;
 import org.aspectj.lang.ProceedingJoinPoint;
 
+import java.io.InputStream;
+import java.io.OutputStream;
+
 public final class LambdaHandlerProcessor {
     private static String SERVICE_NAME = null != System.getenv("POWERTOOLS_SERVICE_NAME")
             ? System.getenv("POWERTOOLS_SERVICE_NAME") : "service_undefined";
     private static Boolean IS_COLD_START = null;
 
-    public static boolean isHandlerMethod(ProceedingJoinPoint pjp) {
+    private LambdaHandlerProcessor() {
+        // Hide default constructor
+    }
+
+    public static boolean isHandlerMethod(final ProceedingJoinPoint pjp) {
         return "handleRequest".equals(pjp.getSignature().getName());
     }
 
-    public static boolean placedOnRequestHandler(ProceedingJoinPoint pjp) {
+    public static boolean placedOnRequestHandler(final ProceedingJoinPoint pjp) {
         return RequestHandler.class.isAssignableFrom(pjp.getSignature().getDeclaringType())
                 && pjp.getArgs().length == 2
                 && pjp.getArgs()[1] instanceof Context;
     }
 
-    public static boolean placedOnStreamHandler(ProceedingJoinPoint pjp) {
+    public static boolean placedOnStreamHandler(final ProceedingJoinPoint pjp) {
         return RequestStreamHandler.class.isAssignableFrom(pjp.getSignature().getDeclaringType())
                 && pjp.getArgs().length == 3
                 && pjp.getArgs()[0] instanceof InputStream

powertools-logging/src/main/java/org/apache/logging/log4j/core/layout/LambdaJsonLayout.java

@@ -13,21 +13,10 @@
  */
 package org.apache.logging.log4j.core.layout;
 
-import java.io.IOException;
-import java.io.Writer;
-import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
-import java.util.HashMap;
-import java.util.LinkedHashMap;
-import java.util.Map;
-
 import com.fasterxml.jackson.annotation.JsonAnyGetter;
 import com.fasterxml.jackson.annotation.JsonGetter;
 import com.fasterxml.jackson.annotation.JsonRootName;
 import com.fasterxml.jackson.annotation.JsonUnwrapped;
-import com.fasterxml.jackson.databind.ObjectMapper;
 import org.apache.logging.log4j.core.Layout;
 import org.apache.logging.log4j.core.LogEvent;
 import org.apache.logging.log4j.core.config.Configuration;
@@ -36,11 +25,20 @@
 import org.apache.logging.log4j.core.config.plugins.Plugin;
 import org.apache.logging.log4j.core.config.plugins.PluginBuilderAttribute;
 import org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory;
-import org.apache.logging.log4j.core.jackson.Log4jJsonObjectMapper;
 import org.apache.logging.log4j.core.jackson.XmlConstants;
 import org.apache.logging.log4j.core.util.KeyValuePair;
 import org.apache.logging.log4j.util.Strings;
 
+import java.io.IOException;
+import java.io.Writer;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
 import static java.time.Instant.ofEpochMilli;
 import static java.time.format.DateTimeFormatter.ISO_ZONED_DATE_TIME;
 
@@ -52,8 +50,6 @@ public class LambdaJsonLayout extends AbstractJacksonLayout {
 
     static final String CONTENT_TYPE = "application/json";
 
-    private final ObjectMapper objectMapper;
-
     public static class Builder<B extends Builder<B>> extends AbstractJacksonLayout.Builder<B>
             implements org.apache.logging.log4j.core.util.Builder<LambdaJsonLayout> {
 
@@ -113,7 +109,6 @@ private LambdaJsonLayout(final Configuration config, final boolean locationInfo,
                 PatternLayout.newSerializerBuilder().setConfiguration(config).setPattern(footerPattern).setDefaultPattern(DEFAULT_FOOTER).build(),
                 includeNullDelimiter,
                 additionalFields);
-        this.objectMapper = new Log4jJsonObjectMapper(encodeThreadContextAsList, includeStacktrace, stacktraceAsString, objectMessageAsJsonObject);
     }
 
     /**

powertools-logging/src/main/java/software/amazon/lambda/powertools/logging/PowertoolsLogging.java

@@ -55,7 +55,7 @@
  * <p>By default {@code PowertoolsLogging} will not log the event which has trigger the invoke of the Lambda function.
  * This can be enabled using {@code @PowertoolsLogging(logEvent = true)}.</p>
  *
- * <p>By default {@code PowertoolsLogging} all debug loggs will follow log4j2 configuration unless configured via
+ * <p>By default {@code PowertoolsLogging} all debug logs will follow log4j2 configuration unless configured via
  * POWERTOOLS_LOGGER_SAMPLE_RATE environment variable {@code @PowertoolsLogging(samplingRate = <0.0-1.0>)}.</p>
  *
  * <p>To append additional keys to each log entry you can use {@link PowertoolsLogger#appendKey(String, String)}</p>

powertools-sqs/src/test/java/software/amazon/lambda/powertools/sqs/handlers/LambdaHandlerApiGateway.java

@@ -3,7 +3,6 @@
 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 software.amazon.lambda.powertools.sqs.LargeMessageHandler;
 
 public class LambdaHandlerApiGateway implements RequestHandler<APIGatewayProxyRequestEvent, String> {

powertools-tracing/src/main/java/software/amazon/lambda/powertools/tracing/PowertoolsTracing.java

@@ -33,7 +33,7 @@
  * <p>By default {@code PowertoolsTracing} will capture responses and add them
  * to a sub segment named after the method.</p>
  *
- * <p>To disable this functionality you can specify {@code @PowertoolsTracing( captureRespones = false)}</p>
+ * <p>To disable this functionality you can specify {@code @PowertoolsTracing( captureResponse = false)}</p>
  *
  * <p>By default {@code PowertoolsTracing} will capture errors and add them
  * to a sub segment named after the method.</p>