1 files changed, 161 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/change/ReviewerJson.java b/java/com/google/gerrit/server/change/ReviewerJson.java
new file mode 100644
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+++ b/java/com/google/gerrit/server/change/ReviewerJson.java
@@ -0,0 +1,161 @@
+// Copyright (C) 2012 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 static com.google.gerrit.common.data.LabelValue.formatValue;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import com.google.gerrit.common.data.LabelType;
+import com.google.gerrit.common.data.LabelTypes;
+import com.google.gerrit.common.data.SubmitRecord;
+import com.google.gerrit.extensions.api.changes.ReviewerInfo;
+import com.google.gerrit.extensions.restapi.AuthException;
+import com.google.gerrit.mail.Address;
+import com.google.gerrit.reviewdb.client.Account;
+import com.google.gerrit.reviewdb.client.PatchSet;
+import com.google.gerrit.reviewdb.client.PatchSetApproval;
+import com.google.gerrit.reviewdb.server.ReviewDb;
+import com.google.gerrit.server.ApprovalsUtil;
+import com.google.gerrit.server.account.AccountLoader;
+import com.google.gerrit.server.permissions.LabelPermission;
+import com.google.gerrit.server.permissions.PermissionBackend;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gerrit.server.project.SubmitRuleEvaluator;
+import com.google.gerrit.server.project.SubmitRuleOptions;
+import com.google.gerrit.server.query.change.ChangeData;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import java.util.Collection;
+import java.util.List;
+import java.util.TreeMap;
+
+@Singleton
+public class ReviewerJson {
+  private final Provider<ReviewDb> db;
+  private final PermissionBackend permissionBackend;
+  private final ChangeData.Factory changeDataFactory;
+  private final ApprovalsUtil approvalsUtil;
+  private final AccountLoader.Factory accountLoaderFactory;
+  private final SubmitRuleEvaluator submitRuleEvaluator;
+
+  @Inject
+  ReviewerJson(
+      Provider<ReviewDb> db,
+      PermissionBackend permissionBackend,
+      ChangeData.Factory changeDataFactory,
+      ApprovalsUtil approvalsUtil,
+      AccountLoader.Factory accountLoaderFactory,
+      SubmitRuleEvaluator.Factory submitRuleEvaluatorFactory) {
+    this.db = db;
+    this.permissionBackend = permissionBackend;
+    this.changeDataFactory = changeDataFactory;
+    this.approvalsUtil = approvalsUtil;
+    this.accountLoaderFactory = accountLoaderFactory;
+    submitRuleEvaluator = submitRuleEvaluatorFactory.create(SubmitRuleOptions.defaults());
+  }
+
+  public List<ReviewerInfo> format(Collection<ReviewerResource> rsrcs)
+      throws OrmException, PermissionBackendException {
+    List<ReviewerInfo> infos = Lists.newArrayListWithCapacity(rsrcs.size());
+    AccountLoader loader = accountLoaderFactory.create(true);
+    ChangeData cd = null;
+    for (ReviewerResource rsrc : rsrcs) {
+      if (cd == null || !cd.getId().equals(rsrc.getChangeId())) {
+        cd = changeDataFactory.create(db.get(), rsrc.getChangeResource().getNotes());
+      }
+      ReviewerInfo info;
+      if (rsrc.isByEmail()) {
+        Address address = rsrc.getReviewerByEmail();
+        info = ReviewerInfo.byEmail(address.getName(), address.getEmail());
+      } else {
+        Account.Id reviewerAccountId = rsrc.getReviewerUser().getAccountId();
+        info = format(new ReviewerInfo(reviewerAccountId.get()), reviewerAccountId, cd);
+        loader.put(info);
+      }
+      infos.add(info);
+    }
+    loader.fill();
+    return infos;
+  }
+
+  public List<ReviewerInfo> format(ReviewerResource rsrc)
+      throws OrmException, PermissionBackendException {
+    return format(ImmutableList.<ReviewerResource>of(rsrc));
+  }
+
+  public ReviewerInfo format(ReviewerInfo out, Account.Id reviewerAccountId, ChangeData cd)
+      throws OrmException, PermissionBackendException {
+    PatchSet.Id psId = cd.change().currentPatchSetId();
+    return format(
+        out,
+        reviewerAccountId,
+        cd,
+        approvalsUtil.byPatchSetUser(db.get(), cd.notes(), psId, reviewerAccountId, null, null));
+  }
+
+  public ReviewerInfo format(
+      ReviewerInfo out,
+      Account.Id reviewerAccountId,
+      ChangeData cd,
+      Iterable<PatchSetApproval> approvals)
+      throws OrmException, PermissionBackendException {
+    LabelTypes labelTypes = cd.getLabelTypes();
+
+    out.approvals = new TreeMap<>(labelTypes.nameComparator());
+    for (PatchSetApproval ca : approvals) {
+      LabelType at = labelTypes.byLabel(ca.getLabelId());
+      if (at != null) {
+        out.approvals.put(at.getName(), formatValue(ca.getValue()));
+      }
+    }
+
+    // Add dummy approvals for all permitted labels for the user even if they
+    // do not exist in the DB.
+    PatchSet ps = cd.currentPatchSet();
+    if (ps != null) {
+      PermissionBackend.ForChange perm =
+          permissionBackend.absentUser(reviewerAccountId).database(db).change(cd);
+
+      for (SubmitRecord rec : submitRuleEvaluator.evaluate(cd)) {
+        if (rec.labels == null) {
+          continue;
+        }
+        for (SubmitRecord.Label label : rec.labels) {
+          String name = label.label;
+          LabelType type = labelTypes.byLabel(name);
+          if (out.approvals.containsKey(name) || type == null) {
+            continue;
+          }
+
+          try {
+            perm.check(new LabelPermission(type));
+            out.approvals.put(name, formatValue((short) 0));
+          } catch (AuthException e) {
+            // Do nothing.
+          }
+        }
+      }
+    }
+
+    if (out.approvals.isEmpty()) {
+      out.approvals = null;
+    }
+
+    return out;
+  }
+}