#11 started implementation of bulk detection

src/main/java/io/imagineobjects/linguinai/LinguinAi.java

@@ -1,12 +1,12 @@
 package io.imagineobjects.linguinai;
 
+import java.util.List;
+
 /**
  * Linguin AI in Java.
  * @author Mihai Andronache (amihaiemil@gmail.com)
  * @version $Id$
  * @since 0.0.1
- * @todo #8:60min Continue implementing the API, with the bulk detection
- *  endpoint. Allow user to specify encoding for each text.
  */
 public interface LinguinAi {
 
@@ -26,4 +26,10 @@ public interface LinguinAi {
      */
     Languages detect(final String text);
 
+    /**
+     * Detect the possible languages for more texts.
+     * @param texts Texts to detect.
+     * @return List of Languages.
+     */
+    List<Languages> bulkDetect(final String... texts);
 }

src/main/java/io/imagineobjects/linguinai/RestLinguinAi.java

@@ -1,22 +1,22 @@
 package io.imagineobjects.linguinai;
 
-import javax.json.Json;
-import javax.json.JsonArray;
-import javax.json.JsonObject;
-import javax.json.JsonValue;
+import javax.json.*;
 import java.io.UnsupportedEncodingException;
 import java.net.HttpURLConnection;
 import java.net.URI;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 /**
  * Linguin AI REST client entry point.
  * @author Mihai Andronache (amihaiemil@gmail.com)
  * @version $Id$
  * @since 0.0.1
+ * @todo #11:60min Finish the implementation of method bulkDetect. It should
+ *  return an instance of BulkDetection (extends Iterable of Languages).
  */
 public final class RestLinguinAi implements LinguinAi {
 
@@ -131,4 +131,43 @@ public double confidence() {
             );
         }
     }
+
+    @Override
+    public List<Languages> bulkDetect(final String... texts) {
+        try {
+            final StringBuilder query = new StringBuilder();
+            for(int i=0; i < texts.length; i++) {
+                query.append("q[]=").append(
+                    URLEncoder.encode(
+                        texts[i],
+                        StandardCharsets.UTF_8.toString()
+                    )
+                );
+                if(i < texts.length -1) {
+                    query.append("&");
+                }
+            }
+            final Resource resource = this.resources.post(
+                URI.create(
+                    this.baseUri + "/bulk?" + query.toString()
+                ),
+                Json.createObjectBuilder().build()
+            );
+            if (resource.statusCode() != HttpURLConnection.HTTP_OK) {
+                throw new IllegalStateException(
+                    "Call to /bulk returned status code "
+                    + resource.statusCode() + ", instead of 200 OK"
+                );
+            }
+            System.out.println(resource.asJsonObject());
+        } catch (final UnsupportedEncodingException ex) {
+            throw new IllegalStateException(
+                "UnsupportedEncodingException when trying to detect language "
+                + "of texts " + Arrays.toString(texts) + " with Charset ["
+                + StandardCharsets.UTF_8.toString() + "].",
+                ex
+            );
+        }
+        throw new UnsupportedOperationException("Not yet finished.");
+    }
 }