Add reporting retry, emailing and better logging

This change:
- Adds retries to the staging action
- Emails domain-registry-eng@ upon completion of either action
- Simplifies logging to be more useful

TODO: fix up Module @Inject naming conventions and yearMonth injection

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=173294822

javatests/google/registry/reporting/ReportingEmailUtilsTest.java

@@ -0,0 +1,68 @@
+// Copyright 2017 The Nomulus 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 google.registry.reporting;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import google.registry.util.SendEmailService;
+import java.util.Properties;
+import javax.mail.Message;
+import javax.mail.Message.RecipientType;
+import javax.mail.Session;
+import javax.mail.internet.InternetAddress;
+import javax.mail.internet.MimeMessage;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Unit tests for {@link ReportingEmailUtils}. */
+@RunWith(JUnit4.class)
+public class ReportingEmailUtilsTest {
+  private Message msg;
+  private final SendEmailService emailService = mock(SendEmailService.class);
+
+  @Before
+  public void setUp() {
+    msg = new MimeMessage(Session.getDefaultInstance(new Properties(), null));
+    when(emailService.createMessage()).thenReturn(msg);
+  }
+
+  private ReportingEmailUtils createEmailUtil() {
+    ReportingEmailUtils emailUtils = new ReportingEmailUtils();
+    emailUtils.sender = "test-project.appspotmail.com";
+    emailUtils.recipient = "email@example.com";
+    emailUtils.emailService = emailService;
+    return emailUtils;
+  }
+
+  @Test
+  public void testSuccess_sendsEmail() throws Exception {
+    ReportingEmailUtils emailUtils = createEmailUtil();
+    emailUtils.emailResults("Subject", "Body");
+
+    assertThat(msg.getFrom()).hasLength(1);
+    assertThat(msg.getFrom()[0])
+      .isEqualTo(new InternetAddress("test-project.appspotmail.com"));
+    assertThat(msg.getRecipients(RecipientType.TO)).hasLength(1);
+    assertThat(msg.getRecipients(RecipientType.TO)[0])
+        .isEqualTo(new InternetAddress("email@example.com"));
+    assertThat(msg.getSubject()).isEqualTo("Subject");
+    assertThat(msg.getContentType()).isEqualTo("text/plain");
+    assertThat(msg.getContent().toString()).isEqualTo("Body");
+  }
+}