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BAEL-2982 NanoHTTPD guide (#7148)

This commit is contained in:
Laurentiu Delcea 2019-06-20 22:53:47 +03:00 committed by maibin
parent efe62f6dc4
commit b748c86ce3
5 changed files with 148 additions and 0 deletions
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14
libraries-server/pom.xml
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@ -96,6 +96,19 @@
<artifactId>smack-java7</artifactId>
<version>${smack.version}</version>
</dependency>
<!-- NanoHTTPD -->
<dependency>
<groupId>org.nanohttpd</groupId>
<artifactId>nanohttpd</artifactId>
<version>${nanohttpd.version}</version>
</dependency>
<dependency>
<groupId>org.nanohttpd</groupId>
<artifactId>nanohttpd-nanolets</artifactId>
<version>${nanohttpd.version}</version>
</dependency>
</dependencies>
<properties>
@ -108,6 +121,7 @@
<tomcat.version>8.5.24</tomcat.version>
<smack.version>4.3.1</smack.version>
<eclipse.paho.client.mqttv3.version>1.2.0</eclipse.paho.client.mqttv3.version>
<nanohttpd.version>2.3.1</nanohttpd.version>
</properties>
</project>

38
libraries-server/src/main/java/com/baeldung/nanohttpd/ApplicationController.java Normal file
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@ -0,0 +1,38 @@
package com.baeldung.nanohttpd;
import fi.iki.elonen.NanoHTTPD;
import fi.iki.elonen.router.RouterNanoHTTPD;
import java.io.IOException;
public class ApplicationController extends RouterNanoHTTPD {
ApplicationController() throws IOException {
super(8072);
addMappings();
start(NanoHTTPD.SOCKET_READ_TIMEOUT, false);
}
@Override
public void addMappings() {
addRoute("/", IndexHandler.class);
addRoute("/users", UserHandler.class);
}
public static class UserHandler extends DefaultHandler {
@Override
public String getText() {
return "UserA, UserB, UserC";
}
@Override
public String getMimeType() {
return MIME_PLAINTEXT;
}
@Override
public Response.IStatus getStatus() {
return Response.Status.OK;
}
}
}

22
libraries-server/src/main/java/com/baeldung/nanohttpd/ItemGetController.java Normal file
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@ -0,0 +1,22 @@
package com.baeldung.nanohttpd;
import fi.iki.elonen.NanoHTTPD;
import java.io.IOException;
public class ItemGetController extends NanoHTTPD {
ItemGetController() throws IOException {
super(8071);
start(NanoHTTPD.SOCKET_READ_TIMEOUT, false);
}
@Override
public Response serve(IHTTPSession session) {
if (session.getMethod() == Method.GET) {
String itemIdRequestParam = session.getParameters().get("itemId").get(0);
return newFixedLengthResponse("Requested itemId = " + itemIdRequestParam);
}
return newFixedLengthResponse(Response.Status.NOT_FOUND, MIME_PLAINTEXT, "The requested resource does not exist");
}
}

37
libraries-server/src/test/java/com/baeldung/nanohttpd/ApplicationControllerUnitTest.java Normal file
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@ -0,0 +1,37 @@
package com.baeldung.nanohttpd;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.*;
public class ApplicationControllerUnitTest {
private static final String BASE_URL = "http://localhost:8072/";
private static final HttpClient CLIENT = HttpClientBuilder.create().build();
@BeforeClass
public static void setUp() throws IOException {
new ApplicationController();
}
@Test
public void givenServer_whenRootRouteRequested_thenHelloWorldReturned() throws IOException {
HttpResponse response = CLIENT.execute(new HttpGet(BASE_URL));
assertTrue(IOUtils.toString(response.getEntity().getContent()).contains("Hello world!"));
assertEquals(200, response.getStatusLine().getStatusCode());
}
@Test
public void givenServer_whenUsersRequested_thenThenAllUsersReturned() throws IOException {
HttpResponse response = CLIENT.execute(new HttpGet(BASE_URL + "users"));
assertEquals("UserA, UserB, UserC", IOUtils.toString(response.getEntity().getContent()));
}
}

37
libraries-server/src/test/java/com/baeldung/nanohttpd/ItemGetControllerUnitTest.java Normal file
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@ -0,0 +1,37 @@
package com.baeldung.nanohttpd;
import static org.junit.Assert.*;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.IOException;
public class ItemGetControllerUnitTest {
private static final String URL = "http://localhost:8071";
private static final HttpClient CLIENT = HttpClientBuilder.create().build();
@BeforeClass
public static void setUp() throws IOException {
new ItemGetController();
}
@Test
public void givenServer_whenDoingGet_thenParamIsReadCorrectly() throws IOException {
HttpResponse response = CLIENT.execute(new HttpGet(URL + "?itemId=1234"));
assertEquals("Requested itemId = 1234", IOUtils.toString(response.getEntity().getContent()));
}
@Test
public void givenServer_whenDoingPost_then404IsReturned() throws IOException {
HttpResponse response = CLIENT.execute(new HttpPost(URL));
assertEquals(404, response.getStatusLine().getStatusCode());
}
}