Add custom HttpUploadExceptions for more information in case of IOExceptions

smack-experimental/src/main/java/org/jivesoftware/smackx/httpfileupload/AbstractHttpUploadException.java

@@ -0,0 +1,101 @@
+/**
+ *
+ * Copyright 2022 Micha Kurvers
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.jivesoftware.smackx.httpfileupload;
+
+import java.io.IOException;
+import java.net.URL;
+
+import org.jivesoftware.smackx.httpfileupload.element.Slot;
+/**
+ * An exception class to provide additional information in case of exceptions during file uploading.
+ *
+ */
+public abstract class AbstractHttpUploadException extends IOException {
+
+    private static final long serialVersionUID = 1L;
+    private final long fileSize;
+    private final Slot slot;
+
+    protected AbstractHttpUploadException(long fileSize, Slot slot, String message) {
+        this(fileSize, slot, message, null);
+    }
+
+    protected AbstractHttpUploadException(long fileSize, Slot slot, String message, Throwable wrappedThrowable) {
+        super(message, wrappedThrowable);
+        this.fileSize = fileSize;
+        this.slot = slot;
+    }
+
+    public long getFileSize() {
+        return fileSize;
+    }
+
+    public URL getPutUrl() {
+        return slot.getPutUrl();
+    }
+
+    public Slot getSlot() {
+        return slot;
+    }
+
+    /**
+     * Exception thrown when http response returned after upload is not 200.
+     */
+    public static class HttpUploadErrorException extends AbstractHttpUploadException {
+
+        private static final long serialVersionUID = 8494356028399474995L;
+        private final int httpStatus;
+        private final String responseMsg;
+
+        public HttpUploadErrorException(int httpStatus, String responseMsg, long fileSize, Slot slot) {
+            super(fileSize, slot, "Error response " + httpStatus + " from server during file upload: "
+                            + responseMsg + ", file size: " + fileSize + ", put URL: "
+                            + slot.getPutUrl());
+            this.httpStatus = httpStatus;
+            this.responseMsg = responseMsg;
+        }
+
+        public int getHttpStatus() {
+            return httpStatus;
+        }
+
+        public String getResponseMsg() {
+            return responseMsg;
+        }
+
+    }
+
+    /**
+     * Exception thrown when an unexpected exception occurred during the upload.
+     */
+    public static class HttpUploadIOException extends AbstractHttpUploadException {
+
+        private static final long serialVersionUID = 5940866318073349451L;
+        private final IOException wrappedIOException;
+
+        public HttpUploadIOException(long fileSize, Slot slot, IOException cause) {
+            super(fileSize, slot, "Unexpected error occurred during file upload, file size: " + fileSize
+                            + ", put Url: " + slot.getPutUrl(), cause);
+            this.wrappedIOException = cause;
+        }
+
+        public IOException getCausingIOException() {
+            return this.wrappedIOException;
+        }
+
+    }
+}

smack-experimental/src/main/java/org/jivesoftware/smackx/httpfileupload/HttpFileUploadManager.java

@@ -49,6 +49,8 @@ import org.jivesoftware.smack.proxy.ProxyInfo;
 
 import org.jivesoftware.smackx.disco.ServiceDiscoveryManager;
 import org.jivesoftware.smackx.disco.packet.DiscoverInfo;
+import org.jivesoftware.smackx.httpfileupload.AbstractHttpUploadException.HttpUploadErrorException;
+import org.jivesoftware.smackx.httpfileupload.AbstractHttpUploadException.HttpUploadIOException;
 import org.jivesoftware.smackx.httpfileupload.UploadService.Version;
 import org.jivesoftware.smackx.httpfileupload.element.Slot;
 import org.jivesoftware.smackx.httpfileupload.element.SlotRequest;
@@ -494,11 +496,12 @@ public final class HttpFileUploadManager extends Manager {
             case HttpURLConnection.HTTP_NO_CONTENT:
                 break;
             default:
-                throw new IOException("Error response " + status + " from server during file upload: "
+                throw new HttpUploadErrorException(status, urlConnection.getResponseMessage(), fileSize, slot);
-                                + urlConnection.getResponseMessage() + ", file size: " + fileSize + ", put URL: "
-                                + putUrl);
             }
         }
+        catch (IOException e) {
+            throw new HttpUploadIOException(fileSize, slot, e);
+        }
         finally {
             urlConnection.disconnect();
         }