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// Copyright (C) 2018 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.rules;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.ImmutableList.toImmutableList;
import com.google.gerrit.entities.LabelFunction;
import com.google.gerrit.entities.LabelType;
import com.google.gerrit.entities.PatchSetApproval;
import com.google.gerrit.entities.SubmitRecord;
import com.google.gerrit.extensions.annotations.Exports;
import com.google.gerrit.extensions.config.FactoryModule;
import com.google.gerrit.server.query.change.ChangeData;
import com.google.inject.Singleton;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Optional;
/**
* Java implementation of Gerrit's default pre-submit rules behavior: check if the labels have the
* correct values, according to the {@link LabelFunction} they are attached to.
*
* <p>As this behavior is also implemented by the Prolog rules system, we skip it if at least one
* project in the hierarchy has a {@code rules.pl} file.
*/
@Singleton
public final class DefaultSubmitRule implements SubmitRule {
public static final String RULE_NAME = "gerrit~DefaultSubmitRule";
public static class DefaultSubmitRuleModule extends FactoryModule {
@Override
public void configure() {
bind(SubmitRule.class)
.annotatedWith(Exports.named("DefaultRules"))
.to(DefaultSubmitRule.class);
}
}
@Override
public Optional<SubmitRecord> evaluate(ChangeData cd) {
SubmitRecord submitRecord = new SubmitRecord();
submitRecord.status = SubmitRecord.Status.OK;
List<LabelType> labelTypes = cd.getLabelTypes().getLabelTypes();
List<PatchSetApproval> approvals = cd.currentApprovals();
submitRecord.labels = new ArrayList<>(labelTypes.size());
for (LabelType t : labelTypes) {
LabelFunction labelFunction = t.getFunction();
checkState(
labelFunction != null,
"Unable to find the LabelFunction for label %s, change %s",
t.getName(),
cd.getId());
Collection<PatchSetApproval> approvalsForLabel = getApprovalsForLabel(approvals, t);
SubmitRecord.Label label = labelFunction.check(t, approvalsForLabel);
submitRecord.labels.add(label);
switch (label.status) {
case OK:
case MAY:
break;
case NEED:
case REJECT:
case IMPOSSIBLE:
submitRecord.status = SubmitRecord.Status.NOT_READY;
break;
}
}
return Optional.of(submitRecord);
}
private static List<PatchSetApproval> getApprovalsForLabel(
List<PatchSetApproval> approvals, LabelType t) {
return approvals.stream()
.filter(input -> input.label().equals(t.getLabelId().get()))
.collect(toImmutableList());
}
}
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