From f5457fb38f109f21d77916da44927b1a72effece Mon Sep 17 00:00:00 2001
From: Ove Gram Nipen <ove@nipen.no>
Date: Fri, 6 Jan 2017 20:49:35 +0100
Subject: [PATCH] add rest client

---
 parking-rest-client/pom.xml                   | 46 +++++++++++++++++
 .../java/no/bouvet/parking/CarParkStatus.java | 27 ++++++++++
 .../java/no/bouvet/parking/ParkingClient.java | 49 +++++++++++++++++++
 .../no/bouvet/parking/ParkingClientTest.java  | 18 +++++++
 pom.xml                                       |  1 +
 5 files changed, 141 insertions(+)
 create mode 100644 parking-rest-client/pom.xml
 create mode 100644 parking-rest-client/src/main/java/no/bouvet/parking/CarParkStatus.java
 create mode 100644 parking-rest-client/src/main/java/no/bouvet/parking/ParkingClient.java
 create mode 100644 parking-rest-client/src/test/java/no/bouvet/parking/ParkingClientTest.java

diff --git a/parking-rest-client/pom.xml b/parking-rest-client/pom.xml
new file mode 100644
index 0000000..4cd93f4
--- /dev/null
+++ b/parking-rest-client/pom.xml
@@ -0,0 +1,46 @@
+<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>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>
diff --git a/parking-rest-client/src/main/java/no/bouvet/parking/CarParkStatus.java b/parking-rest-client/src/main/java/no/bouvet/parking/CarParkStatus.java
new file mode 100644
index 0000000..4562bb1
--- /dev/null
+++ b/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;
+    }
+}
diff --git a/parking-rest-client/src/main/java/no/bouvet/parking/ParkingClient.java b/parking-rest-client/src/main/java/no/bouvet/parking/ParkingClient.java
new file mode 100644
index 0000000..589be7e
--- /dev/null
+++ b/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;
+    }
+}
diff --git a/parking-rest-client/src/test/java/no/bouvet/parking/ParkingClientTest.java b/parking-rest-client/src/test/java/no/bouvet/parking/ParkingClientTest.java
new file mode 100644
index 0000000..63156db
--- /dev/null
+++ b/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() + "]");
+        }
+    }
+}
diff --git a/pom.xml b/pom.xml
index ff62179..3706b4e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,6 +11,7 @@
     <modules>
         <module>autoconfig-example</module>
         <module>webapp</module>
+        <module>parking-rest-client</module>
     </modules>
 
     <properties>