| // Copyright (C) 2014 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.git.validators; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.Iterables; |
| import com.google.gerrit.extensions.registration.DynamicSet; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.server.IdentifiedUser; |
| import com.google.gerrit.server.events.RefReceivedEvent; |
| import com.google.gerrit.server.validators.ValidationException; |
| import com.google.inject.Inject; |
| import com.google.inject.assistedinject.Assisted; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.eclipse.jgit.lib.RefUpdate; |
| import org.eclipse.jgit.transport.ReceiveCommand; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class RefOperationValidators { |
| private static final GetErrorMessages GET_ERRORS = new GetErrorMessages(); |
| private static final Logger LOG = LoggerFactory.getLogger(RefOperationValidators.class); |
| |
| public interface Factory { |
| RefOperationValidators create(Project project, IdentifiedUser user, ReceiveCommand cmd); |
| } |
| |
| public static ReceiveCommand getCommand(RefUpdate update, ReceiveCommand.Type type) { |
| return new ReceiveCommand( |
| update.getExpectedOldObjectId(), update.getNewObjectId(), update.getName(), type); |
| } |
| |
| private final RefReceivedEvent event; |
| private final DynamicSet<RefOperationValidationListener> refOperationValidationListeners; |
| |
| @Inject |
| RefOperationValidators( |
| DynamicSet<RefOperationValidationListener> refOperationValidationListeners, |
| @Assisted Project project, |
| @Assisted IdentifiedUser user, |
| @Assisted ReceiveCommand cmd) { |
| this.refOperationValidationListeners = refOperationValidationListeners; |
| event = new RefReceivedEvent(); |
| event.command = cmd; |
| event.project = project; |
| event.user = user; |
| } |
| |
| public List<ValidationMessage> validateForRefOperation() throws RefOperationValidationException { |
| |
| List<ValidationMessage> messages = new ArrayList<>(); |
| boolean withException = false; |
| try { |
| for (RefOperationValidationListener listener : refOperationValidationListeners) { |
| messages.addAll(listener.onRefOperation(event)); |
| } |
| } catch (ValidationException e) { |
| messages.add(new ValidationMessage(e.getMessage(), true)); |
| withException = true; |
| } |
| |
| if (withException) { |
| throwException(messages, event); |
| } |
| |
| return messages; |
| } |
| |
| private void throwException(Iterable<ValidationMessage> messages, RefReceivedEvent event) |
| throws RefOperationValidationException { |
| Iterable<ValidationMessage> errors = Iterables.filter(messages, GET_ERRORS); |
| String header = |
| String.format( |
| "Ref \"%s\" %S in project %s validation failed", |
| event.command.getRefName(), event.command.getType(), event.project.getName()); |
| LOG.error(header); |
| throw new RefOperationValidationException(header, errors); |
| } |
| |
| private static class GetErrorMessages implements Predicate<ValidationMessage> { |
| @Override |
| public boolean apply(ValidationMessage input) { |
| return input.isError(); |
| } |
| } |
| } |