1 files changed, 127 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/change/AbandonUtil.java b/java/com/google/gerrit/server/change/AbandonUtil.java
new file mode 100644
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+++ b/java/com/google/gerrit/server/change/AbandonUtil.java
@@ -0,0 +1,127 @@
+// 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.change;
+
+import com.google.common.collect.ImmutableListMultimap;
+import com.google.common.collect.ListMultimap;
+import com.google.common.flogger.FluentLogger;
+import com.google.gerrit.index.query.QueryParseException;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.InternalUser;
+import com.google.gerrit.server.config.ChangeCleanupConfig;
+import com.google.gerrit.server.query.change.ChangeData;
+import com.google.gerrit.server.query.change.ChangeQueryBuilder;
+import com.google.gerrit.server.query.change.ChangeQueryProcessor;
+import com.google.gerrit.server.update.BatchUpdate;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+@Singleton
+public class AbandonUtil {
+  private static final FluentLogger logger = FluentLogger.forEnclosingClass();
+
+  private final ChangeCleanupConfig cfg;
+  private final Provider<ChangeQueryProcessor> queryProvider;
+  private final ChangeQueryBuilder queryBuilder;
+  private final BatchAbandon batchAbandon;
+  private final InternalUser internalUser;
+
+  @Inject
+  AbandonUtil(
+      ChangeCleanupConfig cfg,
+      InternalUser.Factory internalUserFactory,
+      Provider<ChangeQueryProcessor> queryProvider,
+      ChangeQueryBuilder queryBuilder,
+      BatchAbandon batchAbandon) {
+    this.cfg = cfg;
+    this.queryProvider = queryProvider;
+    this.queryBuilder = queryBuilder;
+    this.batchAbandon = batchAbandon;
+    internalUser = internalUserFactory.create();
+  }
+
+  public void abandonInactiveOpenChanges(BatchUpdate.Factory updateFactory) {
+    if (cfg.getAbandonAfter() <= 0) {
+      return;
+    }
+
+    try {
+      String query =
+          "status:new age:" + TimeUnit.MILLISECONDS.toMinutes(cfg.getAbandonAfter()) + "m";
+      if (!cfg.getAbandonIfMergeable()) {
+        query += " -is:mergeable";
+      }
+
+      List<ChangeData> changesToAbandon =
+          queryProvider.get().enforceVisibility(false).query(queryBuilder.parse(query)).entities();
+      ImmutableListMultimap.Builder<Project.NameKey, ChangeData> builder =
+          ImmutableListMultimap.builder();
+      for (ChangeData cd : changesToAbandon) {
+        builder.put(cd.project(), cd);
+      }
+
+      int count = 0;
+      ListMultimap<Project.NameKey, ChangeData> abandons = builder.build();
+      String message = cfg.getAbandonMessage();
+      for (Project.NameKey project : abandons.keySet()) {
+        Collection<ChangeData> changes = getValidChanges(abandons.get(project), query);
+        try {
+          batchAbandon.batchAbandon(updateFactory, project, internalUser, changes, message);
+          count += changes.size();
+        } catch (Throwable e) {
+          StringBuilder msg = new StringBuilder("Failed to auto-abandon inactive change(s):");
+          for (ChangeData change : changes) {
+            msg.append(" ").append(change.getId().get());
+          }
+          msg.append(".");
+          logger.atSevere().withCause(e).log(msg.toString());
+        }
+      }
+      logger.atInfo().log("Auto-Abandoned %d of %d changes.", count, changesToAbandon.size());
+    } catch (QueryParseException | OrmException e) {
+      logger.atSevere().withCause(e).log(
+          "Failed to query inactive open changes for auto-abandoning.");
+    }
+  }
+
+  private Collection<ChangeData> getValidChanges(Collection<ChangeData> changes, String query)
+      throws OrmException, QueryParseException {
+    Collection<ChangeData> validChanges = new ArrayList<>();
+    for (ChangeData cd : changes) {
+      String newQuery = query + " change:" + cd.getId();
+      List<ChangeData> changesToAbandon =
+          queryProvider
+              .get()
+              .enforceVisibility(false)
+              .query(queryBuilder.parse(newQuery))
+              .entities();
+      if (!changesToAbandon.isEmpty()) {
+        validChanges.add(cd);
+      } else {
+        logger.atFine().log(
+            "Change data with id \"%s\" does not satisfy the query \"%s\""
+                + " any more, hence skipping it in clean up",
+            cd.getId(), query);
+      }
+    }
+    return validChanges;
+  }
+}