add rest client

parking-rest-client/pom.xml

@@ -0,0 +1,46 @@
+<project xmlns="http:https://maven.apache.org/POM/4.0.0" xmlns:xsi="http:https://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http:https://maven.apache.org/POM/4.0.0 http:https://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>no.bouvet</groupId>
+ <artifactId>parking-rest-client</artifactId>
+ <version>1.0-SNAPSHOT</version>
+ <packaging>jar</packaging>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.httpcomponents</groupId>
+ <artifactId>httpclient</artifactId>
+ <version>4.5.2</version>
+ </dependency>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>4.12</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>com.google.code.gson</groupId>
+ <artifactId>gson</artifactId>
+ <version>2.7</version>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>3.5.1</version>
+ <configuration>
+ <source>1.8</source>
+ <target>1.8</target>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+</project>

parking-rest-client/src/main/java/no/bouvet/parking/CarParkStatus.java

@@ -0,0 +1,27 @@
+package no.bouvet.parking;
+
+import java.util.Date;
+
+public class CarParkStatus {
+ private final String name;
+ private final int vacantSpaces;
+ private final Date timestamp;
+
+ public CarParkStatus(String name, int vacantSpaces, Date timestamp) {
+ this.name = name;
+ this.vacantSpaces = vacantSpaces;
+ this.timestamp = timestamp;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public int getVacantSpaces() {
+ return vacantSpaces;
+ }
+
+ public Date getTimestamp() {
+ return timestamp;
+ }
+}

parking-rest-client/src/main/java/no/bouvet/parking/ParkingClient.java

@@ -0,0 +1,49 @@
+package no.bouvet.parking;
+
+import com.google.gson.Gson;
+import org.apache.http.HttpEntity;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.URI;
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+
+public class ParkingClient {
+
+ private URI endpoint;
+ private Gson gson = new Gson();
+ private final static DateFormat df = new SimpleDateFormat("HH:mm");
+
+ public CarParkStatus[] getData() throws IOException {
+ HttpGet get = new HttpGet(endpoint);
+ try (
+ CloseableHttpClient httpClient = HttpClients.createDefault();
+ CloseableHttpResponse response = httpClient.execute(get);
+ ) {
+ HttpEntity entity = response.getEntity();
+ Parkeringshusstatus[] deserialized = gson.fromJson(new InputStreamReader(entity.getContent()), Parkeringshusstatus[].class);
+ CarParkStatus[] result = new CarParkStatus[deserialized.length];
+ for (int i = 0; i < deserialized.length; i++) {
+ result[i] = new CarParkStatus(deserialized[i].navn, deserialized[i].ledigePlasser, df.parse(deserialized[i].oppdatert));
+ }
+ return result;
+ } catch (ParseException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public void setEndpoint(URI endpoint) {
+ this.endpoint = endpoint;
+ }
+
+ static class Parkeringshusstatus {
+ public String navn, oppdatert;
+ public int ledigePlasser;
+ }
+}

parking-rest-client/src/test/java/no/bouvet/parking/ParkingClientTest.java

@@ -0,0 +1,18 @@
+package no.bouvet.parking;
+
+import org.junit.Test;
+
+import java.net.URI;
+
+public class ParkingClientTest {
+
+ @Test
+ public void name() throws Exception {
+ ParkingClient client = new ParkingClient();
+ client.setEndpoint(URI.create("https://www.bergen.kommune.no/wsproxy/parkering.json"));
+ CarParkStatus[] result = client.getData();
+ for (CarParkStatus status : result) {
+ System.out.println(status.getName() + ": " + status.getVacantSpaces() + " [" + status.getTimestamp() + "]");
+ }
+ }
+}

pom.xml

@@ -11,6 +11,7 @@
  <modules>
  <module>autoconfig-example</module>
  <module>webapp</module>
+ <module>parking-rest-client</module>
  </modules>
 
  <properties>