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// 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.query.change;
import com.google.gerrit.common.data.LabelType;
import com.google.gerrit.common.data.LabelTypes;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.PatchSetApproval;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.index.change.ChangeField;
import com.google.gerrit.server.permissions.ChangePermission;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.project.ProjectCache;
import com.google.gerrit.server.project.ProjectState;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Provider;
public class EqualsLabelPredicate extends ChangeIndexPredicate {
protected final ProjectCache projectCache;
protected final PermissionBackend permissionBackend;
protected final IdentifiedUser.GenericFactory userFactory;
protected final Provider<ReviewDb> dbProvider;
protected final String label;
protected final int expVal;
protected final Account.Id account;
protected final AccountGroup.UUID group;
public EqualsLabelPredicate(
LabelPredicate.Args args, String label, int expVal, Account.Id account) {
super(ChangeField.LABEL, ChangeField.formatLabel(label, expVal, account));
this.permissionBackend = args.permissionBackend;
this.projectCache = args.projectCache;
this.userFactory = args.userFactory;
this.dbProvider = args.dbProvider;
this.group = args.group;
this.label = label;
this.expVal = expVal;
this.account = account;
}
@Override
public boolean match(ChangeData object) throws OrmException {
Change c = object.change();
if (c == null) {
// The change has disappeared.
//
return false;
}
ProjectState project = projectCache.get(c.getDest().getParentKey());
if (project == null) {
// The project has disappeared.
//
return false;
}
LabelType labelType = type(project.getLabelTypes(), label);
if (labelType == null) {
return false; // Label is not defined by this project.
}
boolean hasVote = false;
for (PatchSetApproval p : object.currentApprovals()) {
if (labelType.matches(p)) {
hasVote = true;
if (match(object, p.getValue(), p.getAccountId())) {
return true;
}
}
}
if (!hasVote && expVal == 0) {
return true;
}
return false;
}
protected static LabelType type(LabelTypes types, String toFind) {
if (types.byLabel(toFind) != null) {
return types.byLabel(toFind);
}
for (LabelType lt : types.getLabelTypes()) {
if (toFind.equalsIgnoreCase(lt.getName())) {
return lt;
}
}
return null;
}
protected boolean match(ChangeData cd, short value, Account.Id approver) {
if (value != expVal) {
return false;
}
if (account != null && !account.equals(approver)) {
return false;
}
IdentifiedUser reviewer = userFactory.create(approver);
if (group != null && !reviewer.getEffectiveGroups().contains(group)) {
return false;
}
// Check the user has 'READ' permission.
try {
PermissionBackend.ForChange perm =
permissionBackend.user(reviewer).database(dbProvider).change(cd);
return perm.test(ChangePermission.READ);
} catch (PermissionBackendException e) {
return false;
}
}
@Override
public int getCost() {
return 1 + (group == null ? 0 : 1);
}
}
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