Java tutorial
/* * Copyright (c) 2017 Cisco and/or its affiliates. * * 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 io.fd.maintainer.plugin.util; import static io.fd.maintainer.plugin.service.ComponentReviewInfo.ComponentReviewInfoState.COMPONENT_FOUND; import static io.fd.maintainer.plugin.service.ComponentReviewInfo.ComponentReviewInfoState.COMPONENT_NOT_FOUND; import static java.lang.String.format; import static java.util.Objects.nonNull; import static java.util.stream.Collectors.toMap; import com.google.common.collect.LinkedListMultimap; import com.google.common.collect.Multimap; import com.google.gerrit.extensions.api.changes.AddReviewerInput; import com.google.gerrit.extensions.api.changes.ReviewInput; import com.google.gerrit.extensions.restapi.IdString; import com.google.gerrit.extensions.restapi.RestApiException; import com.google.gerrit.reviewdb.client.Account; import com.google.gerrit.reviewdb.client.Change; import com.google.gerrit.reviewdb.client.Patch; import com.google.gerrit.server.change.ChangeResource; import com.google.gerrit.server.change.ChangesCollection; import com.google.gerrit.server.change.PostReview; import com.google.gerrit.server.change.PostReviewers; import com.google.gerrit.server.change.RevisionResource; import com.google.gerrit.server.change.Revisions; import com.google.gerrit.server.patch.PatchListEntry; import com.google.gerrit.server.update.UpdateException; import com.google.gwtorm.server.OrmException; import io.fd.maintainer.plugin.parser.ComponentPath; import io.fd.maintainer.plugin.parser.Maintainer; import io.fd.maintainer.plugin.service.ComponentReviewInfo; import java.io.IOException; import java.util.Collection; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import java.util.stream.Collectors; import javax.annotation.Nonnull; import org.parboiled.common.Tuple2; /** * Task to build complex index that is used to detect path components,etc... */ public interface CommonTasks extends WarningGenerator, PatchListProcessing { String LINE_SEPARATOR = System.lineSeparator(); static String formatReviewerInfo(final Set<ComponentReviewInfo> reviewInfoSet) { final Multimap<String, String> componentToAffectedFileIndex = LinkedListMultimap.create(); final Set<ComponentReviewInfo> componentBoundReviewInfoSet = reviewInfoSet.stream() .filter(reviewInfo -> reviewInfo.getState() == COMPONENT_FOUND).collect(Collectors.toSet()); componentBoundReviewInfoSet.forEach(reviewInfo -> componentToAffectedFileIndex .put(reviewInfo.getComponentName(), reviewInfo.getAffectedFile())); final Map<String, Set<Maintainer>> componentToMaintainers = new HashMap<>(); componentBoundReviewInfoSet.forEach(reviewInfo -> { if (!componentToMaintainers.containsKey(reviewInfo.getComponentName())) { componentToMaintainers.put(reviewInfo.getComponentName(), reviewInfo.getComponentMaintainers()); } }); final List<ComponentReviewInfo> componentNotFoundReviewInfos = reviewInfoSet.stream() .filter(reviewInfo -> reviewInfo.getState() == COMPONENT_NOT_FOUND).collect(Collectors.toList()); final String messageComponentsFound = componentToAffectedFileIndex.keySet().stream() .map(key -> format("Component %s%s%s" + "Maintainers :%s%s%s" + "Affected files :%s%s%s", key, LINE_SEPARATOR, LINE_SEPARATOR, LINE_SEPARATOR, formatMaintainers(componentToMaintainers.get(key)), LINE_SEPARATOR, LINE_SEPARATOR, formatFiles(componentToAffectedFileIndex.get(key)), LINE_SEPARATOR)) .collect(Collectors.joining(LINE_SEPARATOR)); final String messageComponentsNotFound = format("No component found for following files%s%s", LINE_SEPARATOR, formatFilesWithNoComponent(componentNotFoundReviewInfos)); if (nonNull(messageComponentsNotFound)) { return messageComponentsFound.concat(LINE_SEPARATOR).concat(messageComponentsNotFound); } else { return messageComponentsFound; } } static String formatFilesWithNoComponent(final List<ComponentReviewInfo> componentNotFoundReviewInfos) { return componentNotFoundReviewInfos.stream().map(ComponentReviewInfo::getAffectedFile).map(" "::concat) .collect(Collectors.joining(LINE_SEPARATOR)); } static String formatMaintainers(final Set<Maintainer> maintainers) { return maintainers.stream() .map(maintainer -> format(" %s<%s>", maintainer.getName(), maintainer.getEmail())) .collect(Collectors.joining(LINE_SEPARATOR)); } static String formatFiles(final Collection<String> files) { return files.stream().map(file -> format(" Path: %s", file)).collect(Collectors.joining(LINE_SEPARATOR)); } default Map<PatchListEntry, Tuple2<Set<ComponentPath>, Set<ComponentPath>>> renamedEntriesToComponentIndex( final @Nonnull MaintainersIndex maintainersIndex, final List<PatchListEntry> patches) { return patches.stream() // only renames .filter(entry -> entry.getChangeType() == Patch.ChangeType.RENAMED) .collect(toMap(entry -> entry, maintainersIndex::getComponentPathsForEntry)); } default void sendReviewersInfo(@Nonnull final Set<ComponentReviewInfo> reviewInfoSet, @Nonnull final Change change, @Nonnull final ChangesCollection changesCollection, @Nonnull final Revisions revisions, @Nonnull final PostReview reviewApi, @Nonnull final String onBehalfOf) throws OrmException { try { ChangeResource changeResource = changesCollection.parse(change.getId()); final RevisionResource revisionResource = revisions.parse(changeResource, IdString.fromUrl("current")); ReviewInput review = ReviewInput.noScore().message(formatReviewerInfo(reviewInfoSet)); review.onBehalfOf = onBehalfOf; reviewApi.apply(revisionResource, review); } catch (IOException | RestApiException | UpdateException e) { throw new IllegalStateException( format("Unable to add reviewers info for patchset %s", change.currentPatchSetId())); } } default void addReviewers(final PostReviewers reviewersApi, final Set<Account.Id> reviewers, final ChangesCollection changes, final Change change) { try { ChangeResource changeResource = changes.parse(change.getId()); for (Account.Id accountId : reviewers) { AddReviewerInput input = new AddReviewerInput(); input.reviewer = accountId.toString(); reviewersApi.apply(changeResource, input); } } catch (Exception ex) { throw new IllegalStateException("Couldn't add reviewers to the change", ex); } } }