initial checking of just dropwizard project; it is NOT an archetype y…

…et; to be converted though :-)

README.md

@@ -1,4 +1,14 @@
 dropwizard-archetype
 ====================
 
-Maven2 Archetype for Coda Hale's Dropwizard
+Maven2 Archetype for Coda Hale's Dropwizard
+
+$ mvn package
+
+$ java -jar target/dropwizard-example-0.0.1-SNAPSHOT.jar server configs/hello-world.yml
+
+$ open http://localhost:8080/hello-world http://localhost:8080/hello-world?name=Successful+Dropwizard+User
+
+$ open http://localhost:8081/ http://localhost:8081/metrics http://localhost:8081/threads http://localhost:8081/healthcheck
+
+

configs/hello-world.yml

@@ -0,0 +1,2 @@
+template: Hello, %s!
+defaultName: Stranger

pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.alexeypro.samples</groupId>
+    <artifactId>dropwizard-example</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.yammer.dropwizard</groupId>
+            <artifactId>dropwizard-core</artifactId>
+            <version>0.4.0</version>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <!-- use UTF-8 for everything -->
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+    </properties>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>2.3.2</version>
+                <!-- compile for Java 1.6 -->
+                <configuration>
+                    <source>1.6</source>
+                    <target>1.6</target>
+                    <encoding>UTF-8</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>1.6</version>
+                <configuration>
+                    <createDependencyReducedPom>true</createDependencyReducedPom>
+                    <filters>
+                        <filter>
+                            <artifact>*:*</artifact>
+                            <excludes>
+                                <exclude>META-INF/*.SF</exclude>
+                                <exclude>META-INF/*.DSA</exclude>
+                                <exclude>META-INF/*.RSA</exclude>
+                            </excludes>
+                        </filter>
+                    </filters>
+                </configuration>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <transformers>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+                                    <mainClass>com.alexeypro.samples.services.HelloWorldService</mainClass>
+                                </transformer>
+                            </transformers>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/com/alexeypro/samples/HelloWorldConfiguration.java

@@ -0,0 +1,23 @@
+package com.alexeypro.samples;
+
+import com.yammer.dropwizard.config.Configuration;
+import org.codehaus.jackson.annotate.JsonProperty;
+import org.hibernate.validator.constraints.NotEmpty;
+
+public class HelloWorldConfiguration extends Configuration {
+    @NotEmpty
+    @JsonProperty
+    private String template;
+
+    @NotEmpty
+    @JsonProperty
+    private String defaultName = "Stranger";
+
+    public String getTemplate() {
+        return template;
+    }
+
+    public String getDefaultName() {
+        return defaultName;
+    }
+}

src/main/java/com/alexeypro/samples/Saying.java

@@ -0,0 +1,19 @@
+package com.alexeypro.samples;
+
+public class Saying {
+    private final long id;
+    private final String content;
+
+    public Saying(long id, String content) {
+        this.id = id;
+        this.content = content;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getContent() {
+        return content;
+    }
+}

src/main/java/com/alexeypro/samples/health/TemplateHealthCheck.java

@@ -0,0 +1,21 @@
+package com.alexeypro.samples.health;
+
+import com.yammer.metrics.core.HealthCheck;
+
+public class TemplateHealthCheck extends HealthCheck {
+    private final String template;
+
+    public TemplateHealthCheck(String template) {
+        super("template");
+        this.template = template;
+    }
+
+    @Override
+    protected Result check() throws Exception {
+        final String saying = String.format(template, "TEST");
+        if (!saying.contains("TEST")) {
+            return Result.unhealthy("template doesn't include a name");
+        }
+        return Result.healthy();
+    }
+}

src/main/java/com/alexeypro/samples/resources/HelloWorldResource.java

@@ -0,0 +1,33 @@
+package com.alexeypro.samples.resources;
+
+import com.alexeypro.samples.Saying;
+import com.google.common.base.Optional;
+import com.yammer.metrics.annotation.Timed;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
+import java.util.concurrent.atomic.AtomicLong;
+
+@Path("/hello-world")
+@Produces(MediaType.APPLICATION_JSON)
+public class HelloWorldResource {
+    private final String template;
+    private final String defaultName;
+    private final AtomicLong counter;
+
+    public HelloWorldResource(String template, String defaultName) {
+        this.template = template;
+        this.defaultName = defaultName;
+        this.counter = new AtomicLong();
+    }
+
+    @GET
+    @Timed
+    public Saying sayHello(@QueryParam("name") Optional<String> name) {
+        return new Saying(counter.incrementAndGet(),
+                          String.format(template, name.or(defaultName)));
+    }
+}

src/main/java/com/alexeypro/samples/services/HelloWorldService.java

@@ -0,0 +1,27 @@
+package com.alexeypro.samples.services;
+
+import com.alexeypro.samples.HelloWorldConfiguration;
+import com.alexeypro.samples.resources.HelloWorldResource;
+import com.alexeypro.samples.health.TemplateHealthCheck;
+import com.yammer.dropwizard.Service;
+import com.yammer.dropwizard.config.Environment;
+
+public class HelloWorldService extends Service<HelloWorldConfiguration> {
+    public static void main(String[] args) throws Exception {
+        new HelloWorldService().run(args);
+    }
+
+    private HelloWorldService() {
+        super("hello-world");
+    }
+
+    @Override
+    protected void initialize(HelloWorldConfiguration configuration,
+                              Environment environment) {
+        final String template = configuration.getTemplate();
+        final String defaultName = configuration.getDefaultName();
+        environment.addResource(new HelloWorldResource(template, defaultName));
+        environment.addHealthCheck(new TemplateHealthCheck(template));
+    }
+
+}