Added classes for manage authentication and retrieve data to/from fitbit... but the code needs some mods!

build.gradle

@@ -18,5 +18,8 @@ dependencies {
     compile "com.google.code.gson:gson:2.8.0"
   //  compile "org.xerial:sqlite-jdbc:3.15.1"
     compile 'org.apache.httpcomponents:httpclient:4.5.3'
+    compile 'com.google.api-client:google-api-client:1.23.0'
+    compile group: 'com.google.oauth-client', name: 'google-oauth-client-jetty', version: '1.11.0-beta'
+
 
 }

src/main/java/manage/AuthFITBIT.java

@@ -0,0 +1,116 @@
+package manage;
+
+import com.google.api.client.auth.oauth2.AuthorizationCodeFlow;
+import com.google.api.client.auth.oauth2.BearerToken;
+import com.google.api.client.auth.oauth2.ClientParametersAuthentication;
+import com.google.api.client.auth.oauth2.Credential;
+import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
+import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
+import com.google.api.client.http.GenericUrl;
+import com.google.api.client.http.HttpRequest;
+import com.google.api.client.http.HttpRequestFactory;
+import com.google.api.client.http.HttpRequestInitializer;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.javanet.NetHttpTransport;
+import com.google.api.client.json.JsonFactory;
+import com.google.api.client.json.JsonObjectParser;
+import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.client.util.store.DataStoreFactory;
+import com.google.api.client.util.store.FileDataStoreFactory;
+
+import java.io.IOException;
+import java.util.Arrays;
+
+public class AuthFITBIT {
+
+    /** Directory to store user credentials. */
+    private static final java.io.File DATA_STORE_DIR =
+            new java.io.File(System.getProperty("user.home"), ".store/dailymotion_sample");
+
+    /**
+     * Global instance of the {@link DataStoreFactory}. The best practice is to make it a single
+     * globally shared instance across your application.
+     */
+    private static FileDataStoreFactory DATA_STORE_FACTORY;
+
+    /** OAuth 2 scope. */
+    private static final String SCOPE = "read";
+
+    /** Global instance of the HTTP transport. */
+    private static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
+
+    /** Global instance of the JSON factory. */
+    static final JsonFactory JSON_FACTORY = new JacksonFactory();
+
+    private static final String TOKEN_SERVER_URL = " https://api.fitbit.com/oauth2/token";
+    private static final String AUTHORIZATION_SERVER_URL =
+            "https://api.fitbit.com/oauth2/authorize";
+
+    /** Authorizes the installed application to access user's protected data. */
+    private static Credential authorize() throws Exception {
+        OAuth2ClientCredentials.errorIfNotSpecified();
+        // set up authorization code flow
+        AuthorizationCodeFlow flow = new AuthorizationCodeFlow.Builder(BearerToken
+                .authorizationHeaderAccessMethod(),
+                HTTP_TRANSPORT,
+                JSON_FACTORY,
+                new GenericUrl(TOKEN_SERVER_URL),
+                new ClientParametersAuthentication(
+                        OAuth2ClientCredentials.API_KEY, OAuth2ClientCredentials.API_SECRET),
+                OAuth2ClientCredentials.API_KEY,
+                AUTHORIZATION_SERVER_URL).setScopes(Arrays.asList(SCOPE))
+                .setDataStoreFactory(DATA_STORE_FACTORY).build();
+        // authorize
+        LocalServerReceiver receiver = new LocalServerReceiver.Builder().setHost(
+                OAuth2ClientCredentials.DOMAIN).setPort(OAuth2ClientCredentials.PORT).build();
+        return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
+    }
+
+    private static void run(HttpRequestFactory requestFactory) throws IOException {
+        FITBITUrl url = new FITBITUrl("https://api.fitbit.com/1/user/-/profile.json"); //modificare con token?
+        url.setFields("activity,heartrate,location,sleep");
+
+        HttpRequest request = requestFactory.buildGetRequest(url);
+        UserData data = request.execute().parseAs(UserData.class);
+        if (data.list.isEmpty()) {
+            System.out.println("Error in retrieve user data");
+        } /*else {
+            if (data.hasMore) {
+                System.out.print("First ");
+            }*/ //i don't think is necessary
+       /*     System.out.println(data.list.size() + " favorite videos found:");
+            for (Data datas: data.list) {
+                System.out.println();
+                System.out.println("-----------------------------------------------");
+                System.out.println("ID: " + datas.id);
+                System.out.println("Title: " + datas.title);
+                System.out.println("Tags: " + datas.tags);
+                System.out.println("URL: " + datas.url);
+            }
+        }*/ //neither this
+    }
+
+    public static void main(String[] args) {
+        try {
+            DATA_STORE_FACTORY = new FileDataStoreFactory(DATA_STORE_DIR);
+            final Credential credential = authorize();
+            HttpRequestFactory requestFactory =
+                    HTTP_TRANSPORT.createRequestFactory(new HttpRequestInitializer() {
+                        @Override
+                        public void initialize(HttpRequest request) throws IOException {
+                            credential.initialize(request);
+                            request.setParser(new JsonObjectParser(JSON_FACTORY));
+                        }
+                    });
+            run(requestFactory);
+            // Success!
+            return;
+        } catch (IOException e) {
+            System.err.println(e.getMessage());
+        } catch (Throwable t) {
+            t.printStackTrace();
+        }
+        System.exit(1);
+    }
+
+}

src/main/java/manage/Data.java

@@ -0,0 +1,22 @@
+package manage;
+
+import com.google.api.client.util.Key;
+
+import java.util.List;
+
+//da modificare inserendo gli attributi del json (activity, heartrate, sleep, location)
+
+public class Data {
+
+    @Key
+    public String id;
+
+    @Key
+    public List<String> tags;
+
+    @Key
+    public String title;
+
+    @Key
+    public String url;
+}

src/main/java/manage/FITBITUrl.java

@@ -0,0 +1,28 @@
+package manage;
+
+import com.google.api.client.http.GenericUrl;
+import com.google.api.client.util.Key;
+
+public class FITBITUrl extends GenericUrl {
+
+    @Key
+    private String fields;
+
+    public FITBITUrl(String encodedUrl) {
+        super(encodedUrl);
+    }
+
+    /**
+     * @return the fields
+     */
+    public String getFields() {
+        return fields;
+    }
+
+    /**
+     * @param fields the fields to set
+     */
+    public void setFields(String fields) {
+        this.fields = fields;
+    }
+}

src/main/java/manage/OAuth2ClientCredentials.java

@@ -0,0 +1,26 @@
+package manage;
+
+public class OAuth2ClientCredentials {
+
+        /** Value of the "API Key". */
+        public static final String API_KEY = "22CSTL";
+
+        /** Value of the "API Secret". */
+        public static final String API_SECRET = "ea2452013abd35609940ce5601960a08";
+
+        /** Port in the "Callback URL". */
+        public static final int PORT = 8080;
+
+        /** Domain name in the "Callback URL". */
+        public static final String DOMAIN = "http://127.0.0.1:8080/";
+
+        public static void errorIfNotSpecified() {
+            if (API_KEY.startsWith("Enter ") || API_SECRET.startsWith("Enter ")) {
+                System.out.println(
+                        "Enter API Key and API Secret from http://www.dailymotion.com/profile/developer"
+                                + " into API_KEY and API_SECRET in " + OAuth2ClientCredentials.class);
+                System.exit(1);
+            }
+        }
+    }
+

src/main/java/manage/UserData.java

@@ -0,0 +1,17 @@
+package manage;
+
+
+import com.google.api.client.util.Key;
+import java.util.List;
+
+public class UserData {
+
+    @Key
+    public List<Data> list;
+/*
+    @Key
+    public int limit;
+
+    @Key("has more")
+    public boolean hasMore;*/ //don't think are needed
+}