Pass internal errors back as the cause of a ProxerException

Author: rubengees

library/src/main/java/me/proxer/library/api/ProxerCall.java

@@ -133,13 +133,13 @@ private T processResponse(@NotNull final Response<ProxerResponse<T>> response) t
 
     private ProxerException processNonProxerError(@NotNull final Throwable error) {
         if (error instanceof SocketTimeoutException) {
-            return new ProxerException(ProxerException.ErrorType.TIMEOUT);
+            return new ProxerException(ProxerException.ErrorType.TIMEOUT, error);
         } else if (error instanceof IOException) {
-            return new ProxerException(ProxerException.ErrorType.IO);
+            return new ProxerException(ProxerException.ErrorType.IO, error);
         } else if (error instanceof JsonDataException) {
-            return new ProxerException(ProxerException.ErrorType.PARSING);
+            return new ProxerException(ProxerException.ErrorType.PARSING, error);
         } else {
-            return new ProxerException(ProxerException.ErrorType.UNKNOWN);
+            return new ProxerException(ProxerException.ErrorType.UNKNOWN, error);
         }
     }
 }

library/src/main/java/me/proxer/library/api/ProxerException.java

@@ -34,6 +34,18 @@ public final class ProxerException extends Exception {
     @Getter(onMethod = @__({@Override, @Nullable}))
     private final String message;
 
+    /**
+     * Constructs an instance from the passed {@code error}, {@code serverError}, {@code message} and {@code cause}.
+     */
+    public ProxerException(@NotNull final ErrorType errorType, @Nullable final ServerErrorType serverErrorType,
+                           @Nullable final String message, @Nullable Throwable cause) {
+        super(cause);
+
+        this.errorType = errorType;
+        this.serverErrorType = serverErrorType;
+        this.message = message;
+    }
+
     /**
      * Constructs an instance from the passed {@code error}, {@code serverError} and {@code message}.
      */
@@ -56,6 +68,19 @@ public ProxerException(@NotNull final ErrorType errorType, @Nullable final Integ
         this.message = message;
     }
 
+    /**
+     * Constructs an instance from the passed {@code error} and {@code cause}.
+     * <p>
+     * {@link #getServerErrorType()} and {@link #getMessage()} will return null.
+     */
+    public ProxerException(@NotNull final ErrorType errorType, @Nullable Throwable cause) {
+        super(cause);
+
+        this.errorType = errorType;
+        this.serverErrorType = null;
+        this.message = null;
+    }
+
     /**
      * Constructs an instance from the passed {@code error}.
      * <p>