Catch connection issues

Fixes #28

src/main/java/com/omertron/themoviedbapi/methods/TmdbEpisodes.java

@@ -64,7 +64,8 @@ public class TmdbEpisodes extends AbstractMethod {
     }
 
     /**
-     * Get the primary information about a TV episode by combination of a season and episode number.
+     * Get the primary information about a TV episode by combination of a season
+     * and episode number.
      *
      * @param tvID
      * @param seasonNumber
@@ -106,7 +107,8 @@ public class TmdbEpisodes extends AbstractMethod {
     }
 
     /**
-     * This method lets users get the status of whether or not the TV episode has been rated.
+     * This method lets users get the status of whether or not the TV episode
+     * has been rated.
      *
      * A valid session id is required.
      *
@@ -159,7 +161,8 @@ public class TmdbEpisodes extends AbstractMethod {
     }
 
     /**
-     * Get the external ids for a TV episode by comabination of a season and episode number.
+     * Get the external ids for a TV episode by comabination of a season and
+     * episode number.
      *
      * @param tvID
      * @param seasonNumber
@@ -186,7 +189,8 @@ public class TmdbEpisodes extends AbstractMethod {
     }
 
     /**
-     * Get the images (episode stills) for a TV episode by combination of a season and episode number.
+     * Get the images (episode stills) for a TV episode by combination of a
+     * season and episode number.
      *
      * @param tvID
      * @param seasonNumber
@@ -214,7 +218,8 @@ public class TmdbEpisodes extends AbstractMethod {
     }
 
     /**
-     * This method lets users rate a TV episode. A valid session id or guest session id is required.
+     * This method lets users rate a TV episode. A valid session id or guest
+     * session id is required.
      *
      * @param tvID
      * @param seasonNumber
@@ -251,7 +256,8 @@ public class TmdbEpisodes extends AbstractMethod {
     }
 
     /**
-     * Get the videos that have been added to a TV episode (teasers, clips, etc...)
+     * Get the videos that have been added to a TV episode (teasers, clips,
+     * etc...)
      *
      * @param tvID
      * @param seasonNumber

src/main/java/com/omertron/themoviedbapi/tools/HttpTools.java

@@ -128,7 +128,9 @@ public class HttpTools {
      * @throws MovieDbException
      */
     private String validateResponse(final DigestedResponse response, final URL url) throws MovieDbException {
-        if (response.getStatusCode() >= HttpStatus.SC_INTERNAL_SERVER_ERROR) {
+        if (response.getStatusCode() == 0) {
+            throw new MovieDbException(ApiExceptionType.CONNECTION_ERROR, response.getContent(), response.getStatusCode(), url, null);
+        } else if (response.getStatusCode() >= HttpStatus.SC_INTERNAL_SERVER_ERROR) {
             throw new MovieDbException(ApiExceptionType.HTTP_503_ERROR, response.getContent(), response.getStatusCode(), url, null);
         } else if (response.getStatusCode() >= HttpStatus.SC_MULTIPLE_CHOICES) {
             throw new MovieDbException(ApiExceptionType.HTTP_404_ERROR, response.getContent(), response.getStatusCode(), url, null);