diff --git a/aws-lambda/lambda/pom.xml b/aws-lambda/lambda/pom.xml new file mode 100644 index 0000000000..2d903aabc5 --- /dev/null +++ b/aws-lambda/lambda/pom.xml @@ -0,0 +1,100 @@ + + + 4.0.0 + aws-lambda-examples + 0.1.0-SNAPSHOT + aws-lambda-examples + jar + + + com.baeldung + parent-modules + 1.0.0-SNAPSHOT + ../../ + + + + + com.amazonaws + aws-java-sdk-dynamodb + ${aws-java-sdk.version} + + + com.amazonaws + aws-java-sdk-core + ${aws-java-sdk.version} + + + com.amazonaws + aws-lambda-java-core + ${aws-lambda-java-core.version} + + + commons-logging + commons-logging + + + + + com.amazonaws + aws-lambda-java-events + ${aws-lambda-java-events.version} + + + commons-logging + commons-logging + + + + + com.google.code.gson + gson + ${gson.version} + + + commons-io + commons-io + ${commons-io.version} + + + com.googlecode.json-simple + json-simple + ${json-simple.version} + + + + + + + org.apache.maven.plugins + maven-shade-plugin + ${maven-shade-plugin.version} + + false + + + + package + + shade + + + + + + + + + 1.1.1 + 2.5 + 1.3.0 + 1.2.0 + 2.8.2 + 1.11.241 + 3.0.0 + + + diff --git a/aws-lambda/sam-templates/template-implicit.yaml b/aws-lambda/lambda/sam-templates/template-implicit.yaml similarity index 100% rename from aws-lambda/sam-templates/template-implicit.yaml rename to aws-lambda/lambda/sam-templates/template-implicit.yaml diff --git a/aws-lambda/sam-templates/template-inline-swagger.yaml b/aws-lambda/lambda/sam-templates/template-inline-swagger.yaml similarity index 100% rename from aws-lambda/sam-templates/template-inline-swagger.yaml rename to aws-lambda/lambda/sam-templates/template-inline-swagger.yaml diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/LambdaMethodHandler.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/LambdaMethodHandler.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/LambdaMethodHandler.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/LambdaMethodHandler.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/LambdaRequestHandler.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/LambdaRequestHandler.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/LambdaRequestHandler.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/LambdaRequestHandler.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/LambdaRequestStreamHandler.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/LambdaRequestStreamHandler.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/LambdaRequestStreamHandler.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/LambdaRequestStreamHandler.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/apigateway/APIDemoHandler.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/apigateway/APIDemoHandler.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/apigateway/APIDemoHandler.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/apigateway/APIDemoHandler.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/apigateway/model/Person.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/apigateway/model/Person.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/apigateway/model/Person.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/apigateway/model/Person.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/dynamodb/SavePersonHandler.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/dynamodb/SavePersonHandler.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/dynamodb/SavePersonHandler.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/dynamodb/SavePersonHandler.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonRequest.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonRequest.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonRequest.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonRequest.java diff --git a/aws-lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonResponse.java b/aws-lambda/lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonResponse.java similarity index 100% rename from aws-lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonResponse.java rename to aws-lambda/lambda/src/main/java/com/baeldung/lambda/dynamodb/bean/PersonResponse.java diff --git a/aws-lambda/src/main/resources/logback.xml b/aws-lambda/lambda/src/main/resources/logback.xml similarity index 100% rename from aws-lambda/src/main/resources/logback.xml rename to aws-lambda/lambda/src/main/resources/logback.xml diff --git a/aws-lambda/pom.xml b/aws-lambda/pom.xml index e1d2c7df27..116fc801aa 100644 --- a/aws-lambda/pom.xml +++ b/aws-lambda/pom.xml @@ -5,95 +5,19 @@ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4.0.0 aws-lambda - 0.1.0-SNAPSHOT aws-lambda - jar + pom com.baeldung parent-modules 1.0.0-SNAPSHOT + ../ - - - com.amazonaws - aws-java-sdk-dynamodb - ${aws-java-sdk.version} - - - com.amazonaws - aws-java-sdk-core - ${aws-java-sdk.version} - - - com.amazonaws - aws-lambda-java-core - ${aws-lambda-java-core.version} - - - commons-logging - commons-logging - - - - - com.amazonaws - aws-lambda-java-events - ${aws-lambda-java-events.version} - - - commons-logging - commons-logging - - - - - com.google.code.gson - gson - ${gson.version} - - - commons-io - commons-io - ${commons-io.version} - - - com.googlecode.json-simple - json-simple - ${json-simple.version} - - + + lambda + shipping-tracker/ShippingFunction + - - - - org.apache.maven.plugins - maven-shade-plugin - ${maven-shade-plugin.version} - - false - - - - package - - shade - - - - - - - - - 1.1.1 - 2.5 - 1.3.0 - 1.2.0 - 2.8.2 - 1.11.241 - 3.0.0 - - - \ No newline at end of file + diff --git a/aws-lambda/shipping-tracker/.gitignore b/aws-lambda/shipping-tracker/.gitignore new file mode 100644 index 0000000000..9984c2e554 --- /dev/null +++ b/aws-lambda/shipping-tracker/.gitignore @@ -0,0 +1 @@ +.aws-sam/ diff --git a/aws-lambda/shipping-tracker/ShippingFunction/pom.xml b/aws-lambda/shipping-tracker/ShippingFunction/pom.xml new file mode 100644 index 0000000000..ac39c9ea54 --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/pom.xml @@ -0,0 +1,73 @@ + + 4.0.0 + com.baeldung + ShippingFunction + 1.0 + jar + Shipping Tracker Lambda Function + + 1.8 + 1.8 + 5.4.21.Final + + + + + com.amazonaws + aws-lambda-java-core + 1.2.0 + + + com.amazonaws + aws-lambda-java-events + 3.1.0 + + + com.fasterxml.jackson.core + jackson-databind + 2.11.2 + + + junit + junit + 4.12 + test + + + org.hibernate + hibernate-core + ${hibernate.version} + + + org.hibernate + hibernate-hikaricp + ${hibernate.version} + + + org.postgresql + postgresql + 42.2.16 + + + + + + + org.apache.maven.plugins + maven-shade-plugin + 3.1.1 + + + + + package + + shade + + + + + + + diff --git a/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/App.java b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/App.java new file mode 100644 index 0000000000..719725598c --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/App.java @@ -0,0 +1,108 @@ +package com.baeldung.lambda.shipping; + +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.fasterxml.jackson.core.JsonProcessingException; +import com.fasterxml.jackson.databind.ObjectMapper; +import org.hibernate.SessionFactory; +import org.hibernate.boot.MetadataSources; +import org.hibernate.boot.registry.StandardServiceRegistry; +import org.hibernate.boot.registry.StandardServiceRegistryBuilder; + +import java.util.HashMap; +import java.util.Map; + +import static org.hibernate.cfg.AvailableSettings.*; +import static org.hibernate.cfg.AvailableSettings.PASS; + +/** + * Handler for requests to Lambda function. + */ +public class App implements RequestHandler { +private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper(); + + public APIGatewayProxyResponseEvent handleRequest(APIGatewayProxyRequestEvent input, Context context) { + try (SessionFactory sessionFactory = createSessionFactory()) { + ShippingService service = new ShippingService(sessionFactory, new ShippingDao()); + return routeRequest(input, service); + } + } + + private APIGatewayProxyResponseEvent routeRequest(APIGatewayProxyRequestEvent input, ShippingService service) { + Map headers = new HashMap<>(); + headers.put("Content-Type", "application/json"); + headers.put("X-Custom-Header", "application/json"); + + Object result = "OK"; + + switch (input.getResource()) { + case "/consignment": + result = service.createConsignment( + fromJson(input.getBody(), Consignment.class)); + break; + case "/consignment/{id}": + result = service.view(input.getPathParameters().get("id")); + break; + case "/consignment/{id}/item": + service.addItem(input.getPathParameters().get("id"), + fromJson(input.getBody(), Item.class)); + break; + case "/consignment/{id}/checkin": + service.checkIn(input.getPathParameters().get("id"), + fromJson(input.getBody(), Checkin.class)); + break; + } + + return new APIGatewayProxyResponseEvent() + .withHeaders(headers) + .withStatusCode(200) + .withBody(toJson(result)); + } + + private static String toJson(T object) { + try { + return OBJECT_MAPPER.writeValueAsString(object); + } catch (JsonProcessingException e) { + throw new RuntimeException(e); + } + } + + private static T fromJson(String json, Class type) { + try { + return OBJECT_MAPPER.readValue(json, type); + } catch (JsonProcessingException e) { + throw new RuntimeException(e); + } + } + + private static SessionFactory createSessionFactory() { + Map settings = new HashMap<>(); + settings.put(URL, System.getenv("DB_URL")); + settings.put(DIALECT, "org.hibernate.dialect.PostgreSQLDialect"); + settings.put(DEFAULT_SCHEMA, "shipping"); + settings.put(DRIVER, "org.postgresql.Driver"); + settings.put(USER, System.getenv("DB_USER")); + settings.put(PASS, System.getenv("DB_PASSWORD")); + settings.put("hibernate.hikari.connectionTimeout", "20000"); + settings.put("hibernate.hikari.minimumIdle", "1"); + settings.put("hibernate.hikari.maximumPoolSize", "2"); + settings.put("hibernate.hikari.idleTimeout", "30000"); + +// commented out as we only need them on first use +// settings.put(HBM2DDL_AUTO, "create-only"); +// settings.put(HBM2DDL_DATABASE_ACTION, "create"); + + StandardServiceRegistry registry = new StandardServiceRegistryBuilder() + .applySettings(settings) + .build(); + + return new MetadataSources(registry) + .addAnnotatedClass(Consignment.class) + .addAnnotatedClass(Item.class) + .addAnnotatedClass(Checkin.class) + .buildMetadata() + .buildSessionFactory(); + } +} diff --git a/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Checkin.java b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Checkin.java new file mode 100644 index 0000000000..93e6404749 --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Checkin.java @@ -0,0 +1,28 @@ +package com.baeldung.lambda.shipping; + +import javax.persistence.Column; +import javax.persistence.Embeddable; + +@Embeddable +public class Checkin { + private String timeStamp; + private String location; + + @Column(name = "timestamp") + public String getTimeStamp() { + return timeStamp; + } + + public void setTimeStamp(String timeStamp) { + this.timeStamp = timeStamp; + } + + @Column(name = "location") + public String getLocation() { + return location; + } + + public void setLocation(String location) { + this.location = location; + } +} diff --git a/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Consignment.java b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Consignment.java new file mode 100644 index 0000000000..1a2371b37f --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Consignment.java @@ -0,0 +1,77 @@ +package com.baeldung.lambda.shipping; + +import javax.persistence.*; +import java.util.ArrayList; +import java.util.List; + +import static javax.persistence.FetchType.EAGER; + +@Entity(name = "consignment") +@Table(name = "consignment") +public class Consignment { + private String id; + private String source; + private String destination; + private boolean isDelivered; + private List items = new ArrayList<>(); + private List checkins = new ArrayList<>(); + + @Id + @Column(name = "consignment_id") + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + @Column(name = "source") + public String getSource() { + return source; + } + + public void setSource(String source) { + this.source = source; + } + + @Column(name = "destination") + public String getDestination() { + return destination; + } + + public void setDestination(String destination) { + this.destination = destination; + } + + @Column(name = "delivered", columnDefinition = "boolean") + public boolean isDelivered() { + return isDelivered; + } + + public void setDelivered(boolean delivered) { + isDelivered = delivered; + } + + @ElementCollection(fetch = EAGER) + @CollectionTable(name = "consignment_item", joinColumns = @JoinColumn(name = "consignment_id")) + @OrderColumn(name = "item_index") + public List getItems() { + return items; + } + + public void setItems(List items) { + this.items = items; + } + + @ElementCollection(fetch = EAGER) + @CollectionTable(name = "consignment_checkin", joinColumns = @JoinColumn(name = "consignment_id")) + @OrderColumn(name = "checkin_index") + public List getCheckins() { + return checkins; + } + + public void setCheckins(List checkins) { + this.checkins = checkins; + } +} diff --git a/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Item.java b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Item.java new file mode 100644 index 0000000000..de6194e180 --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/Item.java @@ -0,0 +1,38 @@ +package com.baeldung.lambda.shipping; + +import javax.persistence.Column; +import javax.persistence.Embeddable; + +@Embeddable +public class Item { + private String location; + private String description; + private String timeStamp; + + @Column(name = "location") + public String getLocation() { + return location; + } + + public void setLocation(String location) { + this.location = location; + } + + @Column(name = "description") + public String getDescription() { + return description; + } + + public void setDescription(String description) { + this.description = description; + } + + @Column(name = "timestamp") + public String getTimeStamp() { + return timeStamp; + } + + public void setTimeStamp(String timeStamp) { + this.timeStamp = timeStamp; + } +} diff --git a/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/ShippingDao.java b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/ShippingDao.java new file mode 100644 index 0000000000..369dc33935 --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/ShippingDao.java @@ -0,0 +1,25 @@ +package com.baeldung.lambda.shipping; + +import org.hibernate.Session; +import org.hibernate.Transaction; + +import java.util.Optional; + +public class ShippingDao { + /** + * Save a consignment to the database + * @param consignment the consignment to save + */ + public void save(Session session, Consignment consignment) { + Transaction transaction = session.beginTransaction(); + session.save(consignment); + transaction.commit(); + } + + /** + * Find a consignment in the database by id + */ + public Optional find(Session session, String id) { + return Optional.ofNullable(session.get(Consignment.class, id)); + } +} diff --git a/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/ShippingService.java b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/ShippingService.java new file mode 100644 index 0000000000..4c951068ea --- /dev/null +++ b/aws-lambda/shipping-tracker/ShippingFunction/src/main/java/com/baeldung/lambda/shipping/ShippingService.java @@ -0,0 +1,62 @@ +package com.baeldung.lambda.shipping; + +import org.hibernate.Session; +import org.hibernate.SessionFactory; + +import java.util.Comparator; +import java.util.UUID; + +public class ShippingService { + private SessionFactory sessionFactory; + private ShippingDao shippingDao; + + public ShippingService(SessionFactory sessionFactory, ShippingDao shippingDao) { + this.sessionFactory = sessionFactory; + this.shippingDao = shippingDao; + } + + public String createConsignment(Consignment consignment) { + try (Session session = sessionFactory.openSession()) { + consignment.setDelivered(false); + consignment.setId(UUID.randomUUID().toString()); + shippingDao.save(session, consignment); + return consignment.getId(); + } + } + + public void addItem(String consignmentId, Item item) { + try (Session session = sessionFactory.openSession()) { + shippingDao.find(session, consignmentId) + .ifPresent(consignment -> addItem(session, consignment, item)); + } + } + + private void addItem(Session session, Consignment consignment, Item item) { + consignment.getItems() + .add(item); + shippingDao.save(session, consignment); + } + + public void checkIn(String consignmentId, Checkin checkin) { + try (Session session = sessionFactory.openSession()) { + shippingDao.find(session, consignmentId) + .ifPresent(consignment -> checkIn(session, consignment, checkin)); + } + } + + private void checkIn(Session session, Consignment consignment, Checkin checkin) { + consignment.getCheckins().add(checkin); + consignment.getCheckins().sort(Comparator.comparing(Checkin::getTimeStamp)); + if (checkin.getLocation().equals(consignment.getDestination())) { + consignment.setDelivered(true); + } + shippingDao.save(session, consignment); + } + + public Consignment view(String consignmentId) { + try (Session session = sessionFactory.openSession()) { + return shippingDao.find(session, consignmentId) + .orElseGet(Consignment::new); + } + } +} diff --git a/aws-lambda/shipping-tracker/template.yaml b/aws-lambda/shipping-tracker/template.yaml new file mode 100644 index 0000000000..ec75c51ba1 --- /dev/null +++ b/aws-lambda/shipping-tracker/template.yaml @@ -0,0 +1,47 @@ +AWSTemplateFormatVersion: '2010-09-09' +Transform: AWS::Serverless-2016-10-31 +Description: > + shipping-tracker + + Sample SAM Template for shipping-tracker + +# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst +Globals: + Function: + Timeout: 20 + +Resources: + ShippingFunction: + Type: AWS::Serverless::Function + Properties: + CodeUri: ShippingFunction + Handler: com.baeldung.lambda.shipping.App::handleRequest + Runtime: java8 + MemorySize: 512 + Environment: + Variables: + DB_URL: jdbc:postgresql://postgres/postgres + DB_USER: postgres + DB_PASSWORD: password + Events: + CreateConsignment: + Type: Api + Properties: + Path: /consignment + Method: post + AddItem: + Type: Api + Properties: + Path: /consignment/{id}/item + Method: post + CheckIn: + Type: Api + Properties: + Path: /consignment/{id}/checkin + Method: post + ViewConsignment: + Type: Api + Properties: + Path: /consignment/{id} + Method: get +