| // Copyright (C) 2013 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.solr; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.gerrit.extensions.events.LifecycleListener; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.gerrit.server.index.ChangeSchemas; |
| import com.google.inject.Inject; |
| import com.google.inject.ProvisionException; |
| |
| import org.eclipse.jgit.errors.ConfigInvalidException; |
| import org.eclipse.jgit.storage.file.FileBasedConfig; |
| import org.eclipse.jgit.util.FS; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Map; |
| |
| class IndexVersionCheck implements LifecycleListener { |
| public static final Map<String, Integer> SCHEMA_VERSIONS = ImmutableMap.of( |
| SolrChangeIndex.CHANGES_OPEN, ChangeSchemas.getLatest().getVersion(), |
| SolrChangeIndex.CHANGES_CLOSED, ChangeSchemas.getLatest().getVersion()); |
| |
| public static File solrIndexConfig(SitePaths sitePaths) { |
| return new File(sitePaths.index_dir, "gerrit_index.config"); |
| } |
| |
| private final SitePaths sitePaths; |
| |
| @Inject |
| IndexVersionCheck(SitePaths sitePaths) { |
| this.sitePaths = sitePaths; |
| } |
| |
| @Override |
| public void start() { |
| // TODO Query schema version from a special meta-document |
| File file = solrIndexConfig(sitePaths); |
| try { |
| FileBasedConfig cfg = new FileBasedConfig(file, FS.detect()); |
| cfg.load(); |
| for (Map.Entry<String, Integer> e : SCHEMA_VERSIONS.entrySet()) { |
| int schemaVersion = cfg.getInt("index", e.getKey(), "schemaVersion", 0); |
| if (schemaVersion != e.getValue()) { |
| throw new ProvisionException(String.format( |
| "wrong index schema version for \"%s\": expected %d, found %d%s", |
| e.getKey(), e.getValue(), schemaVersion, upgrade())); |
| } |
| } |
| } catch (IOException e) { |
| throw new ProvisionException("unable to read " + file); |
| } catch (ConfigInvalidException e) { |
| throw new ProvisionException("invalid config file " + file); |
| } |
| } |
| |
| @Override |
| public void stop() { |
| // Do nothing. |
| } |
| |
| private final String upgrade() { |
| return "\nRun reindex to rebuild the index:\n" |
| + "$ java -jar gerrit.war reindex -d " |
| + sitePaths.site_path.getAbsolutePath(); |
| } |
| } |