Move radio URL check into a function

Author: TobiGr

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

@@ -148,6 +148,15 @@ public static boolean isSupportedDomain(final String url) throws ParsingExceptio
         }
     }
 
+    /**
+     * Whether the URL points to a radio kiosk.
+     * @param url the URL to check
+     * @return true if the URL is <code>https://bandcamp.com/?show=SHOW_ID</code>
+     */
+    public static boolean isRadioUrl(final String url) {
+        return url.toLowerCase().matches("https?://bandcamp\\.com/\\?show=\\d+");
+    }
+
     static DateWrapper parseDate(final String textDate) throws ParsingException {
         try {
             final ZonedDateTime zonedDateTime = ZonedDateTime.parse(

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

@@ -3,6 +3,7 @@
 package org.schabi.newpipe.extractor.services.bandcamp.linkHandler;
 
 import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
+import org.schabi.newpipe.extractor.services.bandcamp.extractors.BandcampExtractorHelper;
 import org.schabi.newpipe.extractor.utils.Utils;
 
 import java.util.List;
@@ -28,7 +29,7 @@ public String getUrl(final String id, final List<String> contentFilter, final St
     @Override
     public String getId(String url) {
         url = Utils.replaceHttpWithHttps(url);
-        if (url.matches("https://bandcamp\\.com/\\?show=\\d+") || url.equals(RADIO_API_URL)) {
+        if (BandcampExtractorHelper.isRadioUrl(url) || url.equals(RADIO_API_URL)) {
             return KIOSK_RADIO;
         } else if (url.equals(FEATURED_API_URL)) {
             return KIOSK_FEATURED;
@@ -40,7 +41,6 @@ public String getId(String url) {
     @Override
     public boolean onAcceptUrl(String url) {
         url = Utils.replaceHttpWithHttps(url);
-        return url.equals(FEATURED_API_URL) || (url.equals(RADIO_API_URL)
-                || url.matches("https://bandcamp\\.com/\\?show=\\d+"));
+        return url.equals(FEATURED_API_URL) || (url.equals(RADIO_API_URL) || BandcampExtractorHelper.isRadioUrl(url));
     }
 }

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

@@ -20,7 +20,7 @@ public class BandcampStreamLinkHandlerFactory extends LinkHandlerFactory {
      */
     @Override
     public String getId(final String url) throws ParsingException {
-        if (url.matches("https?://bandcamp\\.com/\\?show=\\d+")) {
+        if (BandcampExtractorHelper.isRadioUrl(url)) {
             return url.split("bandcamp.com/\\?show=")[1];
         } else {
             return getUrl(url);
@@ -48,7 +48,7 @@ public String getUrl(final String input) {
     public boolean onAcceptUrl(final String url) throws ParsingException {
 
         // Accept Bandcamp radio
-        if (url.toLowerCase().matches("https?://bandcamp\\.com/\\?show=\\d+")) return true;
+        if (BandcampExtractorHelper.isRadioUrl(url)) return true;
 
         // Don't accept URLs that don't point to a track
         if (!url.toLowerCase().matches("https?://.+\\..+/track/.+")) return false;