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/SendEmailUtils.java

@@ -0,0 +1,98 @@
+// 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.collect.Iterables.toArray;
+
+import com.google.common.base.Function;
+import com.google.common.base.Joiner;
+import com.google.common.base.Predicates;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.ImmutableList;
+import com.google.domain.registry.config.RegistryConfig;
+import com.google.domain.registry.config.RegistryEnvironment;
+
+import java.util.List;
+
+import javax.mail.Message;
+import javax.mail.internet.AddressException;
+import javax.mail.internet.InternetAddress;
+
+/**
+ * Utility class for sending emails from the app.
+ */
+public class SendEmailUtils {
+
+  private static final RegistryConfig CONFIG = RegistryEnvironment.get().config();
+  private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
+
+  @NonFinalForTesting
+  private static SendEmailService emailService = new SendEmailService();
+
+  /**
+   * Sends an email from Domain Registry to the specified recipient. Returns true iff sending was
+   * successful.
+   */
+  public static boolean sendEmail(String address, String subject, String body) {
+    return sendEmail(ImmutableList.of(address), subject, body);
+  }
+
+  /**
+   * Sends an email from Domain Registry to the specified recipients. Returns true iff sending was
+   * successful.
+   */
+  public static boolean sendEmail(Iterable<String> addresses, final String subject, String body) {
+    try {
+      Message msg = emailService.createMessage();
+      msg.setFrom(new InternetAddress(
+          CONFIG.getGoogleAppsSendFromEmailAddress(),
+          CONFIG.getGoogleAppsAdminEmailDisplayName()));
+      List<InternetAddress> emails = FluentIterable
+          .from(addresses)
+          .transform(new Function<String, InternetAddress>() {
+            @Override
+            public InternetAddress apply(String emailAddress) {
+              try {
+                return new InternetAddress(emailAddress);
+              } catch (AddressException e) {
+                logger.severefmt(
+                    e,
+                    "Could not send email to %s with subject '%s'.",
+                    emailAddress,
+                    subject);
+                // Returning null excludes this address from the list of recipients on the email.
+                return null;
+              }
+            }})
+          .filter(Predicates.notNull())
+          .toList();
+      if (emails.isEmpty()) {
+        return false;
+      }
+      msg.addRecipients(Message.RecipientType.TO, toArray(emails, InternetAddress.class));
+      msg.setSubject(subject);
+      msg.setText(body);
+      emailService.sendMessage(msg);
+    } catch (Throwable t) {
+      logger.severefmt(
+          t,
+          "Could not email to addresses %s with subject '%s'.",
+          Joiner.on(", ").join(addresses),
+          subject);
+      return false;
+    }
+    return true;
+  }
+}