com.google.gerrit.server.query.approval.MagicValuePredicate Maven / Gradle / Ivy
// Copyright (C) 2021 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.approval;
import com.google.gerrit.entities.LabelId;
import com.google.gerrit.entities.LabelType;
import com.google.gerrit.entities.Project;
import com.google.gerrit.index.query.Predicate;
import com.google.gerrit.server.project.ProjectCache;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;
import java.util.Collection;
import java.util.Objects;
import java.util.Optional;
/** Predicate that matches patch set approvals we want to copy based on the value. */
public class MagicValuePredicate extends ApprovalPredicate {
enum MagicValue {
MIN,
MAX,
ANY
}
public interface Factory {
MagicValuePredicate create(MagicValue value);
}
private final MagicValue value;
private final ProjectCache projectCache;
@Inject
MagicValuePredicate(ProjectCache projectCache, @Assisted MagicValue value) {
this.projectCache = projectCache;
this.value = value;
}
@Override
public boolean match(ApprovalContext ctx) {
Optional lt =
getLabelType(ctx.changeNotes().getProjectName(), ctx.patchSetApproval().labelId());
short pValue;
switch (value) {
case ANY:
return true;
case MIN:
if (!lt.isPresent()) {
return false;
}
pValue = lt.get().getMaxNegative();
break;
case MAX:
if (!lt.isPresent()) {
return false;
}
pValue = lt.get().getMaxPositive();
break;
default:
throw new IllegalArgumentException("unrecognized label value: " + value);
}
return pValue == ctx.patchSetApproval().value();
}
private Optional getLabelType(Project.NameKey project, LabelId labelId) {
return projectCache
.get(project)
.orElseThrow(() -> new IllegalStateException(project + " absent"))
.getLabelTypes()
.byLabel(labelId);
}
@Override
public Predicate copy(
Collection> children) {
return new MagicValuePredicate(projectCache, value);
}
@Override
public int hashCode() {
return Objects.hash(value);
}
@Override
public boolean equals(Object other) {
if (!(other instanceof MagicValuePredicate)) {
return false;
}
return ((MagicValuePredicate) other).value.equals(value);
}
}