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// Copyright (C) 2016 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.config;
import static com.google.gerrit.server.config.ConfigUtil.loadSection;
import static com.google.gerrit.server.config.ConfigUtil.skipField;
import static com.google.gerrit.server.config.ConfigUtil.storeSection;
import static com.google.gerrit.server.config.GetDiffPreferences.readFromGit;
import com.google.gerrit.common.data.GlobalCapability;
import com.google.gerrit.extensions.annotations.RequiresCapability;
import com.google.gerrit.extensions.client.DiffPreferencesInfo;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.RestModifyView;
import com.google.gerrit.server.account.VersionedAccountPreferences;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.git.MetaDataUpdate;
import com.google.gerrit.server.git.UserConfigSections;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import java.io.IOException;
import java.lang.reflect.Field;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.errors.RepositoryNotFoundException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@RequiresCapability(GlobalCapability.ADMINISTRATE_SERVER)
@Singleton
public class SetDiffPreferences implements RestModifyView<ConfigResource, DiffPreferencesInfo> {
private static final Logger log = LoggerFactory.getLogger(SetDiffPreferences.class);
private final Provider<MetaDataUpdate.User> metaDataUpdateFactory;
private final AllUsersName allUsersName;
private final GitRepositoryManager gitManager;
@Inject
SetDiffPreferences(
GitRepositoryManager gitManager,
Provider<MetaDataUpdate.User> metaDataUpdateFactory,
AllUsersName allUsersName) {
this.gitManager = gitManager;
this.metaDataUpdateFactory = metaDataUpdateFactory;
this.allUsersName = allUsersName;
}
@Override
public DiffPreferencesInfo apply(ConfigResource configResource, DiffPreferencesInfo in)
throws BadRequestException, IOException, ConfigInvalidException {
if (in == null) {
throw new BadRequestException("input must be provided");
}
if (!hasSetFields(in)) {
throw new BadRequestException("unsupported option");
}
return writeToGit(readFromGit(gitManager, allUsersName, in));
}
private DiffPreferencesInfo writeToGit(DiffPreferencesInfo in)
throws RepositoryNotFoundException, IOException, ConfigInvalidException {
DiffPreferencesInfo out = new DiffPreferencesInfo();
try (MetaDataUpdate md = metaDataUpdateFactory.get().create(allUsersName)) {
VersionedAccountPreferences prefs = VersionedAccountPreferences.forDefault();
prefs.load(md);
DiffPreferencesInfo defaults = DiffPreferencesInfo.defaults();
storeSection(prefs.getConfig(), UserConfigSections.DIFF, null, in, defaults);
prefs.commit(md);
loadSection(
prefs.getConfig(),
UserConfigSections.DIFF,
null,
out,
DiffPreferencesInfo.defaults(),
null);
}
return out;
}
private static boolean hasSetFields(DiffPreferencesInfo in) {
try {
for (Field field : in.getClass().getDeclaredFields()) {
if (skipField(field)) {
continue;
}
if (field.get(in) != null) {
return true;
}
}
} catch (IllegalAccessException e) {
log.warn("Unable to verify input", e);
}
return false;
}
}
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