Refactor extractor

- Refactor info classes and extractors
- Reformat and fix indentation
- Organize packages and classes
- Rename variables/methods and fix regex
- Change the capitalization
- Add methods to playlist extractor

NewPipe.java

@@ -1,9 +1,8 @@
 package org.schabi.newpipe.extractor;
 
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
-import org.schabi.newpipe.extractor.services.youtube.YoutubeService;
 
-/**
+/*
  * Created by Christian Schabesberger on 23.08.15.
  *
  * Copyright (C) Christian Schabesberger 2015 <chris.schabesberger@mailbox.org>
@@ -23,34 +22,37 @@ import org.schabi.newpipe.extractor.services.youtube.YoutubeService;
  * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-/**Provides access to the video streaming services supported by NewPipe.
- * Currently only Youtube until the API becomes more stable.*/
+/**
+ * Provides access to the video streaming services supported by NewPipe.
+ * Currently only Youtube until the API becomes more stable.
+ */
 
 @SuppressWarnings("ALL")
 public class NewPipe {
+    private static final String TAG = NewPipe.class.toString();
 
     private NewPipe() {
     }
 
-    private static final String TAG = NewPipe.class.toString();
-
-
     private static Downloader downloader = null;
 
     public static StreamingService[] getServices() {
         return ServiceList.serviceList;
     }
-    public static StreamingService getService(int serviceId)throws ExtractionException {
-        for(StreamingService s : ServiceList.serviceList) {
-            if(s.getServiceId() == serviceId) {
+
+    public static StreamingService getService(int serviceId) throws ExtractionException {
+        for (StreamingService s : ServiceList.serviceList) {
+            if (s.getServiceId() == serviceId) {
                 return s;
             }
         }
         return null;
     }
+
     public static StreamingService getService(String serviceName) throws ExtractionException {
         return ServiceList.serviceList[getIdOfService(serviceName)];
     }
+
     public static String getNameOfService(int id) {
         try {
             return getService(id).getServiceInfo().name;
@@ -60,9 +62,10 @@ public class NewPipe {
             return "";
         }
     }
+
     public static int getIdOfService(String serviceName) {
-        for(int i = 0; i < ServiceList.serviceList.length; i++) {
-            if(ServiceList.serviceList[i].getServiceInfo().name.equals(serviceName)) {
+        for (int i = 0; i < ServiceList.serviceList.length; i++) {
+            if (ServiceList.serviceList[i].getServiceInfo().name.equals(serviceName)) {
                 return i;
             }
         }
@@ -78,8 +81,8 @@ public class NewPipe {
     }
 
     public static StreamingService getServiceByUrl(String url) {
-        for(StreamingService s : ServiceList.serviceList) {
-            if(s.getLinkTypeByUrl(url) != StreamingService.LinkType.NONE) {
+        for (StreamingService s : ServiceList.serviceList) {
+            if (s.getLinkTypeByUrl(url) != StreamingService.LinkType.NONE) {
                 return s;
             }
         }