1 files changed, 71 insertions, 0 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeTriplet.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeTriplet.java
new file mode 100644
index 0000000000..79c442c1eb
--- /dev/null
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeTriplet.java
@@ -0,0 +1,71 @@
+// Copyright (C) 2013 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.change;
+
+import com.google.gerrit.extensions.restapi.Url;
+import com.google.gerrit.reviewdb.client.Branch;
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.reviewdb.client.Project;
+
+import org.eclipse.jgit.lib.Constants;
+
+public class ChangeTriplet {
+
+  private final Change.Key changeKey;
+  private final Project.NameKey projectNameKey;
+  private final Branch.NameKey branchNameKey;
+
+  public ChangeTriplet(final String triplet) throws ParseException {
+    int t2 = triplet.lastIndexOf('~');
+    int t1 = triplet.lastIndexOf('~', t2 - 1);
+    if (t1 < 0 || t2 < 0) {
+      throw new ParseException();
+    }
+
+    String project = Url.decode(triplet.substring(0, t1));
+    String branch = Url.decode(triplet.substring(t1 + 1, t2));
+    String changeId = Url.decode(triplet.substring(t2 + 1));
+
+    if (!branch.startsWith(Constants.R_REFS)) {
+      branch = Constants.R_HEADS + branch;
+    }
+
+    changeKey = new Change.Key(changeId);
+    projectNameKey = new Project.NameKey(project);
+    branchNameKey = new Branch.NameKey(projectNameKey, branch);
+  }
+
+  public Change.Key getChangeKey() {
+    return changeKey;
+  }
+
+  public Branch.NameKey getBranchNameKey() {
+    return branchNameKey;
+  }
+
+  public static String format(final Change change) {
+    return change.getProject().get() + "~"
+        + change.getDest().getShortName() + "~"
+        + change.getKey().get();
+  }
+
+  public static class ParseException extends Exception {
+    private static final long serialVersionUID = 1L;
+
+    ParseException() {
+      super();
+    }
+  }
+}