1 files changed, 68 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/notedb/NoteDbUtil.java b/java/com/google/gerrit/server/notedb/NoteDbUtil.java
new file mode 100644
index 0000000000..21fada8173
--- /dev/null
+++ b/java/com/google/gerrit/server/notedb/NoteDbUtil.java
@@ -0,0 +1,68 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// 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.gerrit.server.notedb;
+
+import com.google.common.base.CharMatcher;
+import com.google.common.primitives.Ints;
+import com.google.gerrit.reviewdb.client.Account;
+import java.sql.Timestamp;
+import java.util.Optional;
+import org.eclipse.jgit.lib.PersonIdent;
+import org.eclipse.jgit.util.GitDateFormatter;
+import org.eclipse.jgit.util.GitDateFormatter.Format;
+
+public class NoteDbUtil {
+
+  /**
+   * Returns an AccountId for the given email address. Returns empty if the address isn't on this
+   * server.
+   */
+  public static Optional<Account.Id> parseIdent(PersonIdent ident, String serverId) {
+    String email = ident.getEmailAddress();
+    int at = email.indexOf('@');
+    if (at >= 0) {
+      String host = email.substring(at + 1, email.length());
+      if (host.equals(serverId)) {
+        Integer id = Ints.tryParse(email.substring(0, at));
+        if (id != null) {
+          return Optional.of(new Account.Id(id));
+        }
+      }
+    }
+    return Optional.empty();
+  }
+
+  private NoteDbUtil() {}
+
+  public static String formatTime(PersonIdent ident, Timestamp t) {
+    GitDateFormatter dateFormatter = new GitDateFormatter(Format.DEFAULT);
+    // TODO(dborowitz): Use a ThreadLocal or use Joda.
+    PersonIdent newIdent = new PersonIdent(ident, t);
+    return dateFormatter.formatDate(newIdent);
+  }
+
+  private static final CharMatcher INVALID_FOOTER_CHARS = CharMatcher.anyOf("\r\n\0");
+
+  static String sanitizeFooter(String value) {
+    // Remove characters that would confuse JGit's footer parser if they were
+    // included in footer values, for example by splitting the footer block into
+    // multiple paragraphs.
+    //
+    // One painful example: RevCommit#getShorMessage() might return a message
+    // containing "\r\r", which RevCommit#getFooterLines() will treat as an
+    // empty paragraph for the purposes of footer parsing.
+    return INVALID_FOOTER_CHARS.trimAndCollapseFrom(value, ' ');
+  }
+}