1 files changed, 58 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/query/change/CommitPredicate.java b/java/com/google/gerrit/server/query/change/CommitPredicate.java
new file mode 100644
index 0000000000..d1ae529e53
--- /dev/null
+++ b/java/com/google/gerrit/server/query/change/CommitPredicate.java
@@ -0,0 +1,58 @@
+// Copyright (C) 2015 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.query.change;
+
+import static com.google.gerrit.server.index.change.ChangeField.COMMIT;
+import static com.google.gerrit.server.index.change.ChangeField.EXACT_COMMIT;
+import static org.eclipse.jgit.lib.Constants.OBJECT_ID_STRING_LENGTH;
+
+import com.google.gerrit.index.FieldDef;
+import com.google.gerrit.reviewdb.client.PatchSet;
+import com.google.gwtorm.server.OrmException;
+
+public class CommitPredicate extends ChangeIndexPredicate {
+  static FieldDef<ChangeData, ?> commitField(String id) {
+    if (id.length() == OBJECT_ID_STRING_LENGTH) {
+      return EXACT_COMMIT;
+    }
+    return COMMIT;
+  }
+
+  public CommitPredicate(String id) {
+    super(commitField(id), id);
+  }
+
+  @Override
+  public boolean match(ChangeData object) throws OrmException {
+    String id = getValue().toLowerCase();
+    for (PatchSet p : object.patchSets()) {
+      if (equals(p, id)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  protected boolean equals(PatchSet p, String id) {
+    boolean exact = getField() == EXACT_COMMIT;
+    String rev = p.getRevision() != null ? p.getRevision().get() : null;
+    return (exact && id.equals(rev)) || (!exact && rev != null && rev.startsWith(id));
+  }
+
+  @Override
+  public int getCost() {
+    return 1;
+  }
+}