Merge "Enable aliases for change query operators"

java/com/google/gerrit/server/config/OperatorAliasConfig.java

@@ -0,0 +1,46 @@
+// Copyright (C) 2019 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.config;
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import java.util.HashMap;
+import java.util.Map;
+import org.eclipse.jgit.lib.Config;
+
+@Singleton
+public class OperatorAliasConfig {
+  private static final String SECTION = "operator-alias";
+  private static final String SUBSECTION_CHANGE = "change";
+  private final Config cfg;
+  private final Map<String, String> changeQueryOperatorAliases;
+
+  @Inject
+  OperatorAliasConfig(@GerritServerConfig Config cfg) {
+    this.cfg = cfg;
+    changeQueryOperatorAliases = new HashMap<>();
+    loadChangeOperatorAliases();
+  }
+
+  public Map<String, String> getChangeQueryOperatorAliases() {
+    return changeQueryOperatorAliases;
+  }
+
+  private void loadChangeOperatorAliases() {
+    for (String name : cfg.getNames(SECTION, SUBSECTION_CHANGE)) {
+      changeQueryOperatorAliases.put(name, cfg.getString(SECTION, SUBSECTION_CHANGE, name));
+    }
+  }
+}