Add integrity checker for emails

restclient/src/main/java/com/box/l10n/mojito/rest/entity/IntegrityCheckerType.java

@@ -21,5 +21,6 @@ public enum IntegrityCheckerType {
   BACKQUOTE,
   EMPTY_TARGET_NOT_EMPTY_SOURCE,
   MARKDOWN_LINKS,
-  PYTHON_FPRINT;
+  PYTHON_FPRINT,
+  EMAIL;
 }

webapp/src/main/java/com/box/l10n/mojito/service/assetintegritychecker/integritychecker/EmailIntegrityChecker.java

@@ -0,0 +1,24 @@
+package com.box.l10n.mojito.service.assetintegritychecker.integritychecker;
+
+import java.util.LinkedHashSet;
+import java.util.Set;
+import java.util.regex.Matcher;
+
+public class EmailIntegrityChecker extends RegexIntegrityChecker {
+
+  final static String EMAIL_REGEX = "[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}";
+
+  @Override
+  public String getRegex() {
+    return EMAIL_REGEX;
+  }
+
+  @Override
+  public void check(String content, String target) {
+    try {
+      super.check(content, target);
+    } catch (RegexCheckerException ex) {
+      throw new EmailIntegrityCheckerException("Emails are changed.");
+    }
+  }
+}

webapp/src/main/java/com/box/l10n/mojito/service/assetintegritychecker/integritychecker/EmailIntegrityCheckerException.java

@@ -0,0 +1,7 @@
+package com.box.l10n.mojito.service.assetintegritychecker.integritychecker;
+
+public class EmailIntegrityCheckerException extends IntegrityCheckException {
+  public EmailIntegrityCheckerException(String message) {
+    super(message);
+  }
+}

webapp/src/test/java/com/box/l10n/mojito/service/assetintegritychecker/integritychecker/EmailIntegrityCheckerTest.java

@@ -0,0 +1,39 @@
+package com.box.l10n.mojito.service.assetintegritychecker.integritychecker;
+
+import org.junit.Ignore;
+import org.junit.Test;
+
+public class EmailIntegrityCheckerTest {
+
+    EmailIntegrityChecker checker = new EmailIntegrityChecker();
+
+    @Test
+    public void testNoEmail() {
+        String source = "There is no email";
+        String target = "Il n'y a pas d'email";
+        checker.check(source, target);
+    }
+
+    @Test(expected = EmailIntegrityCheckerException.class)
+    public void testMissingInTarget() {
+        String source = "There is an [email protected]";
+        String target = "Il n'y a pas d'email";
+        checker.check(source, target);
+    }
+
+    @Test(expected = EmailIntegrityCheckerException.class)
+    public void testAddedInTarget() {
+        String source = "There is no email";
+        String target = "Il n'y a un email [email protected]";
+        checker.check(source, target);
+    }
+
+    @Ignore // not supported yet
+    @Test(expected = EmailIntegrityCheckerException.class)
+    public void testDuplicates() {
+        String source = "There is an [email protected]";
+        String target = "Il n'y a un email [email protected] [email protected]";
+        checker.check(source, target);
+    }
+
+}