Object representations of the CloudWatch alarms

aws-lambda-java-events/README.md

@@ -16,7 +16,9 @@
 * `AppSyncLambdaAuthorizerResponse`
 * `CloudFormationCustomResourceEvent`
 * `CloudFrontEvent`
+* `CloudWatchCompositeAlarmEvent`
 * `CloudWatchLogsEvent`
+* `CloudWatchMetricAlarmEvent`
 * `CodeCommitEvent`
 * `CognitoEvent`
 * `CognitoUserPoolCreateAuthChallengeEvent`

aws-lambda-java-events/pom.xml

@@ -35,6 +35,8 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <lombok.version>1.18.22</lombok.version>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     </properties>
 
     <distributionManagement>

aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/CloudWatchCompositeAlarmEvent.java

@@ -0,0 +1,70 @@
+package com.amazonaws.services.lambda.runtime.events;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * Represents an CloudWatch Composite Alarm event. This event occurs when a composite alarm is triggered.
+ *
+ * @see <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/AlarmThatSendsEmail.html#alarms-and-actions">Using Amazon CloudWatch alarms</a>
+ */
+@Data
+@Builder(setterPrefix = "with")
+@NoArgsConstructor
+@AllArgsConstructor
+public class CloudWatchCompositeAlarmEvent {
+    private String source;
+    private String alarmArn;
+    private String accountId;
+    private String time;
+    private String region;
+    private AlarmData alarmData;
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class AlarmData {
+        private String alarmName;
+        private State state;
+        private PreviousState previousState;
+        private Configuration configuration;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class State {
+        private String value;
+        private String reason;
+        private String reasonData;
+        private String timestamp;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class PreviousState {
+        private String value;
+        private String reason;
+        private String reasonData;
+        private String timestamp;
+        private String actionsSuppressedBy;
+        private String actionsSuppressedReason;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class Configuration {
+        private String alarmRule;
+        private String actionsSuppressor;
+        private Integer actionsSuppressorWaitPeriod;
+        private Integer actionsSuppressorExtensionPeriod;
+    }
+}

aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/CloudWatchMetricAlarmEvent.java

@@ -0,0 +1,99 @@
+package com.amazonaws.services.lambda.runtime.events;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Represents an CloudWatch Metric Alarm event. This event occurs when a metric alarm is triggered.
+ *
+ * @see <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/AlarmThatSendsEmail.html#alarms-and-actions">Using Amazon CloudWatch alarms</a>
+ */
+@Data
+@Builder(setterPrefix = "with")
+@NoArgsConstructor
+@AllArgsConstructor
+public class CloudWatchMetricAlarmEvent {
+    private String source;
+    private String alarmArn;
+    private String accountId;
+    private String time;
+    private String region;
+    private AlarmData alarmData;
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class AlarmData {
+        private String alarmName;
+        private State state;
+        private PreviousState previousState;
+        private Configuration configuration;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class State {
+        private String value;
+        private String reason;
+        private String timestamp;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class PreviousState {
+        private String value;
+        private String reason;
+        private String reasonData;
+        private String timestamp;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class Configuration {
+        private String description;
+        private List<Metric> metrics;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class Metric {
+        private String id;
+        private MetricStat metricStat;
+        private Boolean returnData;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class MetricStat {
+        private MetricDetail metric;
+        private Integer period;
+        private String stat;
+        private String unit;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class MetricDetail {
+        private String namespace;
+        private String name;
+        private Map<String, String> dimensions;
+    }
+}

aws-lambda-java-tests/src/main/java/com/amazonaws/services/lambda/runtime/tests/EventLoader.java

@@ -45,10 +45,18 @@ public static CloudFrontEvent loadCloudFrontEvent(String filename) {
         return loadEvent(filename, CloudFrontEvent.class);
     }
 
+    public static CloudWatchCompositeAlarmEvent loadCloudWatchCompositeAlarmEvent(String filename) {
+        return loadEvent(filename, CloudWatchCompositeAlarmEvent.class);
+    }
+
     public static CloudWatchLogsEvent loadCloudWatchLogsEvent(String filename) {
         return loadEvent(filename, CloudWatchLogsEvent.class);
     }
 
+    public static CloudWatchMetricAlarmEvent loadCloudWatchMetricAlarmEvent(String filename) {
+        return loadEvent(filename, CloudWatchMetricAlarmEvent.class);
+    }
+
     public static CodeCommitEvent loadCodeCommitEvent(String filename) {
         return loadEvent(filename, CodeCommitEvent.class);
     }

aws-lambda-java-tests/src/test/java/com/amazonaws/services/lambda/runtime/tests/EventLoaderTest.java

@@ -1,6 +1,38 @@
 /* Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. */
 package com.amazonaws.services.lambda.runtime.tests;
 
+import com.amazonaws.services.lambda.runtime.events.APIGatewayCustomAuthorizerEvent;
+import com.amazonaws.services.lambda.runtime.events.APIGatewayProxyRequestEvent;
+import com.amazonaws.services.lambda.runtime.events.APIGatewayV2CustomAuthorizerEvent;
+import com.amazonaws.services.lambda.runtime.events.APIGatewayV2HTTPEvent;
+import com.amazonaws.services.lambda.runtime.events.ActiveMQEvent;
+import com.amazonaws.services.lambda.runtime.events.ApplicationLoadBalancerRequestEvent;
+import com.amazonaws.services.lambda.runtime.events.CloudFormationCustomResourceEvent;
+import com.amazonaws.services.lambda.runtime.events.CloudFrontEvent;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchCompositeAlarmEvent;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchCompositeAlarmEvent.AlarmData;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchCompositeAlarmEvent.Configuration;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchCompositeAlarmEvent.PreviousState;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchCompositeAlarmEvent.State;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchLogsEvent;
+import com.amazonaws.services.lambda.runtime.events.CloudWatchMetricAlarmEvent;
+import com.amazonaws.services.lambda.runtime.events.CodeCommitEvent;
+import com.amazonaws.services.lambda.runtime.events.CognitoUserPoolPreTokenGenerationEventV2;
+import com.amazonaws.services.lambda.runtime.events.ConfigEvent;
+import com.amazonaws.services.lambda.runtime.events.ConnectEvent;
+import com.amazonaws.services.lambda.runtime.events.DynamodbEvent;
+import com.amazonaws.services.lambda.runtime.events.KafkaEvent;
+import com.amazonaws.services.lambda.runtime.events.KinesisEvent;
+import com.amazonaws.services.lambda.runtime.events.KinesisFirehoseEvent;
+import com.amazonaws.services.lambda.runtime.events.LambdaDestinationEvent;
+import com.amazonaws.services.lambda.runtime.events.LexEvent;
+import com.amazonaws.services.lambda.runtime.events.MSKFirehoseEvent;
+import com.amazonaws.services.lambda.runtime.events.RabbitMQEvent;
+import com.amazonaws.services.lambda.runtime.events.S3Event;
+import com.amazonaws.services.lambda.runtime.events.SNSEvent;
+import com.amazonaws.services.lambda.runtime.events.SQSEvent;
+import com.amazonaws.services.lambda.runtime.events.ScheduledEvent;
+import com.amazonaws.services.lambda.runtime.events.SecretsManagerRotationEvent;
 import com.amazonaws.services.lambda.runtime.events.models.dynamodb.AttributeValue;
 import com.amazonaws.services.lambda.runtime.events.models.dynamodb.Record;
 import com.amazonaws.services.lambda.runtime.events.models.dynamodb.StreamRecord;
@@ -15,8 +47,6 @@
 import static java.time.Instant.ofEpochSecond;
 import static org.assertj.core.api.Assertions.*;
 
-import com.amazonaws.services.lambda.runtime.events.*;
-
 public class EventLoaderTest {
 
     @Test
@@ -389,4 +419,108 @@ public void testLoadCognitoUserPoolPreTokenGenerationEventV2() {
         String[] requestScopes = request.getScopes();
         assertThat("aws.cognito.signin.user.admin").isEqualTo(requestScopes[0]);
     }
+
+    @Test
+    public void testCloudWatchCompositeAlarmEvent() {
+        CloudWatchCompositeAlarmEvent event = EventLoader.loadCloudWatchCompositeAlarmEvent("cloudwatch_composite_alarm.json");
+        assertThat(event).isNotNull();
+        assertThat(event)
+                .returns("aws.cloudwatch", from(CloudWatchCompositeAlarmEvent::getSource))
+                .returns("arn:aws:cloudwatch:us-east-1:111122223333:alarm:SuppressionDemo.Main", from(CloudWatchCompositeAlarmEvent::getAlarmArn))
+                .returns("111122223333", from(CloudWatchCompositeAlarmEvent::getAccountId))
+                .returns("2023-08-04T12:56:46.138+0000", from(CloudWatchCompositeAlarmEvent::getTime))
+                .returns("us-east-1", from(CloudWatchCompositeAlarmEvent::getRegion));
+
+        AlarmData alarmData = event.getAlarmData();
+        assertThat(alarmData).isNotNull();
+        assertThat(alarmData)
+                .returns("CompositeDemo.Main", from(AlarmData::getAlarmName));
+
+        State state = alarmData.getState();
+        assertThat(state).isNotNull();
+        assertThat(state)
+                .returns("ALARM", from(State::getValue))
+                .returns("arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild transitioned to ALARM at Friday 04 August, 2023 12:54:46 UTC", from(State::getReason))
+                .returns("{\"triggeringAlarms\":[{\"arn\":\"arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild\",\"state\":{\"value\":\"ALARM\",\"timestamp\":\"2023-08-04T12:54:46.138+0000\"}}]}", from(State::getReasonData))
+                .returns("2023-08-04T12:56:46.138+0000", from(State::getTimestamp));
+
+        PreviousState previousState = alarmData.getPreviousState();
+        assertThat(previousState).isNotNull();
+        assertThat(previousState)
+                .returns("ALARM", from(PreviousState::getValue))
+                .returns("arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild transitioned to ALARM at Friday 04 August, 2023 12:54:46 UTC", from(PreviousState::getReason))
+                .returns("{\"triggeringAlarms\":[{\"arn\":\"arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild\",\"state\":{\"value\":\"ALARM\",\"timestamp\":\"2023-08-04T12:54:46.138+0000\"}}]}", from(PreviousState::getReasonData))
+                .returns("2023-08-04T12:54:46.138+0000", from(PreviousState::getTimestamp))
+                .returns("WaitPeriod", from(PreviousState::getActionsSuppressedBy))
+                .returns("Actions suppressed by WaitPeriod", from(PreviousState::getActionsSuppressedReason));
+
+        Configuration configuration = alarmData.getConfiguration();
+        assertThat(configuration).isNotNull();
+        assertThat(configuration)
+                .returns("ALARM(CompositeDemo.FirstChild) OR ALARM(CompositeDemo.SecondChild)", from(Configuration::getAlarmRule))
+                .returns("CompositeDemo.ActionsSuppressor", from(Configuration::getActionsSuppressor))
+                .returns(120, from(Configuration::getActionsSuppressorWaitPeriod))
+                .returns(180, from(Configuration::getActionsSuppressorExtensionPeriod));
+    }
+
+    @Test
+    public void testCloudWatchMetricAlarmEvent() {
+        CloudWatchMetricAlarmEvent event = EventLoader.loadCloudWatchMetricAlarmEvent("cloudwatch_metric_alarm.json");
+        assertThat(event).isNotNull();
+        assertThat(event)
+                .returns("aws.cloudwatch", from(CloudWatchMetricAlarmEvent::getSource))
+                .returns("arn:aws:cloudwatch:us-east-1:444455556666:alarm:lambda-demo-metric-alarm", from(CloudWatchMetricAlarmEvent::getAlarmArn))
+                .returns("444455556666", from(CloudWatchMetricAlarmEvent::getAccountId))
+                .returns("2023-08-04T12:36:15.490+0000", from(CloudWatchMetricAlarmEvent::getTime))
+                .returns("us-east-1", from(CloudWatchMetricAlarmEvent::getRegion));
+
+        CloudWatchMetricAlarmEvent.AlarmData alarmData = event.getAlarmData();
+        assertThat(alarmData).isNotNull();
+        assertThat(alarmData)
+                .returns("lambda-demo-metric-alarm", from(CloudWatchMetricAlarmEvent.AlarmData::getAlarmName));
+
+        CloudWatchMetricAlarmEvent.State state = alarmData.getState();
+        assertThat(state).isNotNull();
+        assertThat(state)
+                .returns("ALARM", from(CloudWatchMetricAlarmEvent.State::getValue))
+                .returns("test", from(CloudWatchMetricAlarmEvent.State::getReason))
+                .returns("2023-08-04T12:36:15.490+0000", from(CloudWatchMetricAlarmEvent.State::getTimestamp));
+
+        CloudWatchMetricAlarmEvent.PreviousState previousState = alarmData.getPreviousState();
+        assertThat(previousState).isNotNull();
+        assertThat(previousState)
+                .returns("INSUFFICIENT_DATA", from(CloudWatchMetricAlarmEvent.PreviousState::getValue))
+                .returns("Insufficient Data: 5 datapoints were unknown.", from(CloudWatchMetricAlarmEvent.PreviousState::getReason))
+                .returns("{\"version\":\"1.0\",\"queryDate\":\"2023-08-04T12:31:29.591+0000\",\"statistic\":\"Average\",\"period\":60,\"recentDatapoints\":[],\"threshold\":5.0,\"evaluatedDatapoints\":[{\"timestamp\":\"2023-08-04T12:30:00.000+0000\"},{\"timestamp\":\"2023-08-04T12:29:00.000+0000\"},{\"timestamp\":\"2023-08-04T12:28:00.000+0000\"},{\"timestamp\":\"2023-08-04T12:27:00.000+0000\"},{\"timestamp\":\"2023-08-04T12:26:00.000+0000\"}]}", from(CloudWatchMetricAlarmEvent.PreviousState::getReasonData))
+                .returns("2023-08-04T12:31:29.595+0000", from(CloudWatchMetricAlarmEvent.PreviousState::getTimestamp));
+
+        CloudWatchMetricAlarmEvent.Configuration configuration = alarmData.getConfiguration();
+        assertThat(configuration).isNotNull();
+        assertThat(configuration)
+                .returns("Metric Alarm to test Lambda actions", from(CloudWatchMetricAlarmEvent.Configuration::getDescription));
+
+        List<CloudWatchMetricAlarmEvent.Metric> metrics = configuration.getMetrics();
+        assertThat(metrics).hasSize(1);
+        CloudWatchMetricAlarmEvent.Metric metric = metrics.get(0);
+        assertThat(metric)
+                .returns("1234e046-06f0-a3da-9534-EXAMPLEe4c", from(CloudWatchMetricAlarmEvent.Metric::getId));
+
+        CloudWatchMetricAlarmEvent.MetricStat metricStat = metric.getMetricStat();
+        assertThat(metricStat).isNotNull();
+        assertThat(metricStat)
+                .returns(60, from(CloudWatchMetricAlarmEvent.MetricStat::getPeriod))
+                .returns("Average", from(CloudWatchMetricAlarmEvent.MetricStat::getStat))
+                .returns("Percent", from(CloudWatchMetricAlarmEvent.MetricStat::getUnit));
+
+        CloudWatchMetricAlarmEvent.MetricDetail metricDetail = metricStat.getMetric();
+        assertThat(metricDetail).isNotNull();
+        assertThat(metricDetail)
+                .returns("AWS/Logs", from(CloudWatchMetricAlarmEvent.MetricDetail::getNamespace))
+                .returns("CallCount", from(CloudWatchMetricAlarmEvent.MetricDetail::getName));
+
+        Map<String, String> dimensions = metricDetail.getDimensions();
+        assertThat(dimensions).isNotEmpty().hasSize(1);
+        assertThat(dimensions)
+                .contains(entry("InstanceId", "i-12345678"));
+    }
 }

aws-lambda-java-tests/src/test/resources/cloudwatch_composite_alarm.json

@@ -0,0 +1,30 @@
+{
+  "source": "aws.cloudwatch",
+  "alarmArn": "arn:aws:cloudwatch:us-east-1:111122223333:alarm:SuppressionDemo.Main",
+  "accountId": "111122223333",
+  "time": "2023-08-04T12:56:46.138+0000",
+  "region": "us-east-1",
+  "alarmData": {
+    "alarmName": "CompositeDemo.Main",
+    "state": {
+      "value": "ALARM",
+      "reason": "arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild transitioned to ALARM at Friday 04 August, 2023 12:54:46 UTC",
+      "reasonData": "{\"triggeringAlarms\":[{\"arn\":\"arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild\",\"state\":{\"value\":\"ALARM\",\"timestamp\":\"2023-08-04T12:54:46.138+0000\"}}]}",
+      "timestamp": "2023-08-04T12:56:46.138+0000"
+    },
+    "previousState": {
+      "value": "ALARM",
+      "reason": "arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild transitioned to ALARM at Friday 04 August, 2023 12:54:46 UTC",
+      "reasonData": "{\"triggeringAlarms\":[{\"arn\":\"arn:aws:cloudwatch:us-east-1:111122223333:alarm:CompositeDemo.FirstChild\",\"state\":{\"value\":\"ALARM\",\"timestamp\":\"2023-08-04T12:54:46.138+0000\"}}]}",
+      "timestamp": "2023-08-04T12:54:46.138+0000",
+      "actionsSuppressedBy": "WaitPeriod",
+      "actionsSuppressedReason": "Actions suppressed by WaitPeriod"
+    },
+    "configuration": {
+      "alarmRule": "ALARM(CompositeDemo.FirstChild) OR ALARM(CompositeDemo.SecondChild)",
+      "actionsSuppressor": "CompositeDemo.ActionsSuppressor",
+      "actionsSuppressorWaitPeriod": 120,
+      "actionsSuppressorExtensionPeriod": 180
+    }
+  }
+}