| // Copyright (C) 2010 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.common.data.Permission; |
| import com.google.gerrit.reviewdb.client.Account; |
| 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.project.ChangeControl; |
| import com.google.gerrit.server.project.NoSuchChangeException; |
| import com.google.gerrit.server.project.ProjectCache; |
| import com.google.gerrit.server.project.ProjectState; |
| import com.google.gerrit.server.query.OperatorPredicate; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Provider; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| class LabelPredicate extends OperatorPredicate<ChangeData> { |
| private static enum Test { |
| EQ { |
| @Override |
| public boolean match(int psValue, int expValue) { |
| return psValue == expValue; |
| } |
| }, |
| GT_EQ { |
| @Override |
| public boolean match(int psValue, int expValue) { |
| return psValue >= expValue; |
| } |
| }, |
| LT_EQ { |
| @Override |
| public boolean match(int psValue, int expValue) { |
| return psValue <= expValue; |
| } |
| }; |
| |
| abstract boolean match(int psValue, int expValue); |
| } |
| |
| private 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; |
| } |
| } |
| |
| for (LabelType lt : types.getLabelTypes()) { |
| if (toFind.equalsIgnoreCase(lt.getAbbreviatedName())) { |
| return lt; |
| } |
| } |
| |
| return LabelType.withDefaultValues(toFind); |
| } |
| |
| private static Test op(String op) { |
| if ("=".equals(op)) { |
| return Test.EQ; |
| |
| } else if (">=".equals(op)) { |
| return Test.GT_EQ; |
| |
| } else if ("<=".equals(op)) { |
| return Test.LT_EQ; |
| |
| } else { |
| throw new IllegalArgumentException("Unsupported operation " + op); |
| } |
| } |
| |
| private static int value(String value) { |
| if (value.startsWith("+")) { |
| value = value.substring(1); |
| } |
| return Integer.parseInt(value); |
| } |
| |
| private final ProjectCache projectCache; |
| private final ChangeControl.GenericFactory ccFactory; |
| private final IdentifiedUser.GenericFactory userFactory; |
| private final Provider<ReviewDb> dbProvider; |
| private final Test test; |
| private final String type; |
| private final int expVal; |
| |
| LabelPredicate(ProjectCache projectCache, |
| ChangeControl.GenericFactory ccFactory, |
| IdentifiedUser.GenericFactory userFactory, |
| Provider<ReviewDb> dbProvider, |
| String value) { |
| super(ChangeQueryBuilder.FIELD_LABEL, value); |
| this.ccFactory = ccFactory; |
| this.projectCache = projectCache; |
| this.userFactory = userFactory; |
| this.dbProvider = dbProvider; |
| |
| Matcher m1 = Pattern.compile("(=|>=|<=)([+-]?\\d+)$").matcher(value); |
| Matcher m2 = Pattern.compile("([+-]\\d+)$").matcher(value); |
| if (m1.find()) { |
| type = value.substring(0, m1.start()); |
| test = op(m1.group(1)); |
| expVal = value(m1.group(2)); |
| |
| } else if (m2.find()) { |
| type = value.substring(0, m2.start()); |
| test = Test.EQ; |
| expVal = value(m2.group(1)); |
| |
| } else { |
| type = value; |
| test = Test.EQ; |
| expVal = 1; |
| } |
| } |
| |
| @Override |
| public boolean match(final ChangeData object) throws OrmException { |
| final Change c = object.change(dbProvider); |
| if (c == null) { |
| // The change has disappeared. |
| // |
| return false; |
| } |
| final ProjectState project = projectCache.get(c.getDest().getParentKey()); |
| if (project == null) { |
| // The project has disappeared. |
| // |
| return false; |
| } |
| final LabelType labelType = type(project.getLabelTypes(), type); |
| final Set<Account.Id> allApprovers = new HashSet<Account.Id>(); |
| final Set<Account.Id> approversThatVotedInCategory = new HashSet<Account.Id>(); |
| for (PatchSetApproval p : object.currentApprovals(dbProvider)) { |
| allApprovers.add(p.getAccountId()); |
| if (labelType.matches(p)) { |
| approversThatVotedInCategory.add(p.getAccountId()); |
| if (match(c, p.getValue(), p.getAccountId(), labelType)) { |
| return true; |
| } |
| } |
| } |
| |
| final Set<Account.Id> approversThatDidNotVoteInCategory = new HashSet<Account.Id>(allApprovers); |
| approversThatDidNotVoteInCategory.removeAll(approversThatVotedInCategory); |
| for (Account.Id a : approversThatDidNotVoteInCategory) { |
| if (match(c, 0, a, labelType)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| private boolean match(final Change change, final int value, |
| final Account.Id approver, final LabelType type) |
| throws OrmException { |
| int psVal = value; |
| if (test.match(psVal, expVal)) { |
| // Double check the value is still permitted for the user. |
| // |
| try { |
| ChangeControl cc = ccFactory.controlFor(change, // |
| userFactory.create(dbProvider, approver)); |
| if (!cc.isVisible(dbProvider.get())) { |
| // The user can't see the change anymore. |
| // |
| return false; |
| } |
| psVal = cc.getRange(Permission.forLabel(type.getName())).squash(psVal); |
| } catch (NoSuchChangeException e) { |
| // The project has disappeared. |
| // |
| return false; |
| } |
| |
| if (test.match(psVal, expVal)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public int getCost() { |
| return 2; |
| } |
| } |