Creating a multi-module application with Gradle

 1// tag::copyright[]
 2/*******************************************************************************
 3 * Copyright (c) 2025 IBM Corporation and others.
 4 * All rights reserved. This program and the accompanying materials
 5 * are made available under the terms of the Eclipse Public License 2.0
 6 * which accompanies this distribution, and is available at
 7 * http://www.eclipse.org/legal/epl-2.0/
 8 *
 9 * SPDX-License-Identifier: EPL-2.0
10 *******************************************************************************/
11// end::copyright[]
12package io.openliberty.guides.multimodules.web;
13
14public class HeightsBean implements java.io.Serializable {
15    private String heightCm = null;
16    private String heightFeet = null;
17    private String heightInches = null;
18    private int cm = 0;
19    private int feet = 0;
20    private int inches = 0;
21
22    public HeightsBean() {
23    }
24
25    // Capitalize the first letter of the name i.e. first letter after get
26    // If first letter is not capitalized, it must match the property name in
27    // index.jsp
28    public String getHeightCm() {
29        return heightCm;
30    }
31
32    public String getHeightFeet() {
33        return heightFeet;
34    }
35
36    public String getHeightInches() {
37        return heightInches;
38    }
39
40    public void setHeightCm(String heightcm) {
41        this.heightCm = heightcm;
42    }
43
44    // Need an input as placeholder, you can choose not to use the input
45    // tag::setHeightFeet[]
46    public void setHeightFeet(String heightfeet) {
47        this.cm = Integer.valueOf(heightCm);
48        // tag::getFeet[]
49        this.feet = io.openliberty.guides.multimodules.lib.Converter.getFeet(cm);
50        // end::getFeet[]
51        String result = String.valueOf(feet);
52        this.heightFeet = result;
53    }
54    // end::setHeightFeet[]
55
56    // tag::setHeightInches[]
57    public void setHeightInches(String heightinches) {
58        this.cm = Integer.valueOf(heightCm);
59        // tag::getInches[]
60        this.inches = io.openliberty.guides.multimodules.lib.Converter.getInches(cm);
61        // end::getInches[]
62        String result = String.valueOf(inches);
63        this.heightInches = result;
64    }
65    // end::setHeightInches[]
66
67}

 1// tag::copyright[]
 2/*******************************************************************************
 3 * Copyright (c) 2025 IBM Corporation and others.
 4 * All rights reserved. This program and the accompanying materials
 5 * are made available under the terms of the Eclipse Public License 2.0
 6 * which accompanies this distribution, and is available at
 7 * http://www.eclipse.org/legal/epl-2.0/
 8 *
 9 * SPDX-License-Identifier: EPL-2.0
10 *******************************************************************************/
11// end::copyright[]
12package io.openliberty.guides.multimodules.lib;
13
14public class Converter {
15
16    // tag::getFeetMethod[]
17    public static int getFeet(int cm) {
18        int feet = (int) (cm / 30.48);
19        return feet;
20    }
21    // end::getFeetMethod[]
22
23    // tag::getInchesMethod[]
24    public static int getInches(int cm) {
25        double feet = cm / 30.48;
26        int inches = (int) (cm / 2.54) - ((int) feet * 12);
27        return inches;
28    }
29    // end::getInchesMethod[]
30
31    public static int sum(int a, int b) {
32        return a + b;
33    }
34
35    public static int diff(int a, int b) {
36        return a - b;
37    }
38
39    public static int product(int a, int b) {
40        return a * b;
41    }
42
43    public static int quotient(int a, int b) {
44        return a / b;
45    }
46
47}

 1// tag::copyright[]
 2/*******************************************************************************
 3 * Copyright (c) 2025 IBM Corporation and others.
 4 * All rights reserved. This program and the accompanying materials
 5 * are made available under the terms of the Eclipse Public License 2.0
 6 * which accompanies this distribution, and is available at
 7 * http://www.eclipse.org/legal/epl-2.0/
 8 *
 9 * SPDX-License-Identifier: EPL-2.0
10 *******************************************************************************/
11// end::copyright[]
12package it.io.openliberty.guides.multimodules;
13
14import static org.junit.jupiter.api.Assertions.assertEquals;
15import static org.junit.jupiter.api.Assertions.assertTrue;
16
17import java.io.BufferedReader;
18import java.io.InputStreamReader;
19import java.net.HttpURLConnection;
20import java.net.URL;
21
22import org.junit.jupiter.api.Test;
23
24public class IT {
25    String port = System.getProperty("http.port");
26    String war = "converter";
27    String urlBase = "http://localhost:" + port + "/" + war + "/";
28
29    @Test
30    // tag::testIndexPage[]
31    public void testIndexPage() throws Exception {
32        String url = this.urlBase;
33        HttpURLConnection con = testRequestHelper(url, "GET");
34        assertEquals(200, con.getResponseCode(), "Incorrect response code from " + url);
35        assertTrue(testBufferHelper(con).contains("Enter the height in centimeter"),
36                        "Incorrect response from " + url);
37    }
38    // end::testIndexPage[]
39
40    @Test
41    // tag::testHeightsPage[]
42    public void testHeightsPage() throws Exception {
43        String url = this.urlBase + "heights.jsp?heightCm=10";
44        HttpURLConnection con = testRequestHelper(url, "POST");
45        assertTrue(testBufferHelper(con).contains("3        in"),
46                        "Incorrect response from " + url);
47    }
48    // end::testHeightsPage[]
49
50    private HttpURLConnection testRequestHelper(String url, String method)
51                    throws Exception {
52        URL obj = new URL(url);
53        HttpURLConnection con = (HttpURLConnection) obj.openConnection();
54        // optional default is GET
55        con.setRequestMethod(method);
56        return con;
57    }
58
59    private String testBufferHelper(HttpURLConnection con) throws Exception {
60        BufferedReader in = new BufferedReader(
61                        new InputStreamReader(con.getInputStream()));
62        String inputLine;
63        StringBuffer response = new StringBuffer();
64        while ((inputLine = in.readLine()) != null) {
65            response.append(inputLine);
66        }
67        in.close();
68        return response.toString();
69    }
70
71}