mv com/google/domain/registry google/registry

This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.

java/google/registry/util/UrlFetchException.java

@@ -0,0 +1,60 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// 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.google.domain.registry.util;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static java.nio.charset.StandardCharsets.UTF_8;
+
+import com.google.appengine.api.urlfetch.HTTPHeader;
+import com.google.appengine.api.urlfetch.HTTPRequest;
+import com.google.appengine.api.urlfetch.HTTPResponse;
+
+/**
+ * Exception for when App Engine HTTP requests return a bad response.
+ *
+ * <p>This class displays lots of helpful troubleshooting information.
+ */
+public class UrlFetchException extends RuntimeException {
+
+  private final HTTPRequest req;
+  private final HTTPResponse rsp;
+
+  public UrlFetchException(String message, HTTPRequest req, HTTPResponse rsp) {
+    super(message);
+    this.req = checkNotNull(req, "req");
+    this.rsp = checkNotNull(rsp, "rsp");
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder res = new StringBuilder(2048 + rsp.getContent().length).append(String.format(
+        "%s: %s (HTTP Status %d)\nX-Fetch-URL: %s\nX-Final-URL: %s\n",
+        getClass().getSimpleName(),
+        getMessage(),
+        rsp.getResponseCode(),
+        req.getURL().toString(),
+        rsp.getFinalUrl()));
+    for (HTTPHeader header : rsp.getHeadersUncombined()) {
+      res.append(header.getName());
+      res.append(": ");
+      res.append(header.getValue());
+      res.append('\n');
+    }
+    res.append(">>>\n");
+    res.append(new String(rsp.getContent(), UTF_8));
+    res.append("\n<<<");
+    return res.toString();
+  }
+}