Move BandcampExtractorHelper.getJsonData(String, String) to JsonUtils

extractor/src/main/java/org/schabi/newpipe/extractor/services/bandcamp/extractors/BandcampExtractorHelper.java

@@ -28,23 +28,6 @@ public class BandcampExtractorHelper {
     public static final String BASE_URL = "https://bandcamp.com";
     public static final String BASE_API_URL = BASE_URL + "/api";
 
-    /**
-     * <p>Get an attribute of a web page as JSON
-     *
-     * <p>Originally a part of bandcampDirect.</p>
-     *
-     * @param html     The HTML where the JSON we're looking for is stored inside a
-     *                 variable inside some JavaScript block
-     * @param variable Name of the variable
-     * @return The JsonObject stored in the variable with this name
-     */
-    public static JsonObject getJsonData(final String html, final String variable)
-            throws JsonParserException, ArrayIndexOutOfBoundsException {
-        final Document document = Jsoup.parse(html);
-        final String json = document.getElementsByAttribute(variable).attr(variable);
-        return JsonParser.object().from(json);
-    }
-
     /**
      * Translate all these parameters together to the URL of the corresponding album or track
      * using the mobile API

extractor/src/main/java/org/schabi/newpipe/extractor/services/bandcamp/extractors/BandcampPlaylistExtractor.java

@@ -21,7 +21,7 @@ import javax.annotation.Nonnull;
 import java.io.IOException;
 
 import static org.schabi.newpipe.extractor.services.bandcamp.extractors.BandcampExtractorHelper.getImageUrl;
-import static org.schabi.newpipe.extractor.services.bandcamp.extractors.BandcampExtractorHelper.getJsonData;
+import static org.schabi.newpipe.extractor.utils.JsonUtils.getJsonData;
 import static org.schabi.newpipe.extractor.services.bandcamp.extractors.BandcampStreamExtractor.getAlbumInfoJson;
 
 public class BandcampPlaylistExtractor extends PlaylistExtractor {

extractor/src/main/java/org/schabi/newpipe/extractor/services/bandcamp/extractors/BandcampStreamExtractor.java

@@ -17,6 +17,7 @@ import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
 import org.schabi.newpipe.extractor.localization.DateWrapper;
 import org.schabi.newpipe.extractor.stream.*;
+import org.schabi.newpipe.extractor.utils.JsonUtils;
 import org.schabi.newpipe.extractor.utils.Utils;
 
 import javax.annotation.Nonnull;
@@ -62,7 +63,7 @@ public class BandcampStreamExtractor extends StreamExtractor {
      */
     public static JsonObject getAlbumInfoJson(final String html) throws ParsingException {
         try {
-            return BandcampExtractorHelper.getJsonData(html, "data-tralbum");
+            return JsonUtils.getJsonData(html, "data-tralbum");
         } catch (final JsonParserException e) {
             throw new ParsingException("Faulty JSON; page likely does not contain album data", e);
         } catch (final ArrayIndexOutOfBoundsException e) {

extractor/src/main/java/org/schabi/newpipe/extractor/services/bandcamp/linkHandler/BandcampChannelLinkHandlerFactory.java

@@ -9,6 +9,7 @@ import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
 import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
 import org.schabi.newpipe.extractor.services.bandcamp.extractors.BandcampExtractorHelper;
+import org.schabi.newpipe.extractor.utils.JsonUtils;
 
 import java.io.IOException;
 import java.util.List;
@@ -25,7 +26,7 @@ public class BandcampChannelLinkHandlerFactory extends ListLinkHandlerFactory {
             final String response = NewPipe.getDownloader().get(url).responseBody();
 
             // Use band data embedded in website to extract ID
-            final JsonObject bandData = BandcampExtractorHelper.getJsonData(response, "data-band");
+            final JsonObject bandData = JsonUtils.getJsonData(response, "data-band");
 
             return String.valueOf(bandData.getLong("id"));
 

extractor/src/main/java/org/schabi/newpipe/extractor/utils/JsonUtils.java

@@ -2,6 +2,10 @@ package org.schabi.newpipe.extractor.utils;
 
 import com.grack.nanojson.JsonArray;
 import com.grack.nanojson.JsonObject;
+import com.grack.nanojson.JsonParser;
+import com.grack.nanojson.JsonParserException;
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 
 import javax.annotation.Nonnull;
@@ -99,4 +103,34 @@ public class JsonUtils {
         return result;
     }
 
+    /**
+     * <p>Get an attribute of a web page as JSON
+     *
+     * <p>Originally a part of bandcampDirect.</p>
+     * <p>Example HTML:</p>
+     * <pre>
+     * {@code
+     * <p data-town="{&quot;name&quot;:&quot;Mycenae&quot;,&quot;country&quot;:&quot;Greece&quot;}">This is Sparta!</p>
+     * }
+     * </pre>
+     * <p>Calling this function to get the attribute <code>data-town</code> returns the JsonObject for</p>
+     * <pre>
+     * {@code
+     *   {
+     *     "name": "Mycenae",
+     *     "country": "Greece"
+     *   }
+     * }
+     * </pre>
+     * @param html     The HTML where the JSON we're looking for is stored inside a
+     *                 variable inside some JavaScript block
+     * @param variable Name of the variable
+     * @return The JsonObject stored in the variable with this name
+     */
+    public static JsonObject getJsonData(final String html, final String variable)
+            throws JsonParserException, ArrayIndexOutOfBoundsException {
+        final Document document = Jsoup.parse(html);
+        final String json = document.getElementsByAttribute(variable).attr(variable);
+        return JsonParser.object().from(json);
+    }
 }