Update

app/src/main/java/com/hippo/util/ExceptionUtils.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016 Hippo Seven
+ *
+ * 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 com.hippo.util;
+
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+
+import com.hippo.ehviewer.R;
+import com.hippo.ehviewer.client.exception.EhException;
+import com.hippo.network.StatusCodeException;
+
+import org.apache.http.conn.ConnectTimeoutException;
+
+import java.net.ProtocolException;
+import java.net.SocketException;
+import java.net.SocketTimeoutException;
+import java.net.UnknownHostException;
+
+public final class ExceptionUtils {
+
+    private static final String TAG = ExceptionUtils.class.getSimpleName();
+
+    @NonNull
+    public static String getReadableString(@NonNull Context context, @NonNull Exception e) {
+        if (e instanceof ConnectTimeoutException ||
+                e instanceof SocketTimeoutException) {
+            return context.getString(R.string.error_timeout);
+        } else if (e instanceof UnknownHostException) {
+            return context.getString(R.string.error_unknown_host);
+        } else if (e instanceof StatusCodeException) {
+            StatusCodeException sce = (StatusCodeException) e;
+            StringBuilder sb = new StringBuilder();
+            sb.append(context.getString(R.string.error_bad_status_code, sce.getResponseCode()));
+            if (sce.isIdentifiedResponseCode()) {
+                sb.append(", ").append(sce.getMessage());
+            }
+            return sb.toString();
+        } else if (e instanceof ProtocolException && e.getMessage().startsWith("Too many follow-up requests:")) {
+            return context.getString(R.string.error_redirection);
+        } else if (e instanceof ProtocolException || e instanceof SocketException) {
+            return context.getString(R.string.error_socket);
+        } else if (e instanceof EhException) {
+            return e.getMessage();
+        } else {
+            return context.getString(R.string.error_unknown);
+        }
+    }
+}