package de.micromata.borgbutler.cache;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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import de.micromata.borgbutler.config.BorgRepoConfig;
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import de.micromata.borgbutler.config.ConfigurationHandler;
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import de.micromata.borgbutler.json.borg.Archive;
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import de.micromata.borgbutler.json.borg.FilesystemItem;
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import lombok.Getter;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.List;
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public class ButlerCache {
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private static Logger log = LoggerFactory.getLogger(ButlerCache.class);
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public static final String CACHE_DIR_NAME = "caches";
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private static ButlerCache instance = new ButlerCache();
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@Getter
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private RepoInfoCache repoInfoCache;
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@Getter
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private RepoListCache repoListCache;
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private ArchiveListCache archiveListCache;
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private List<AbstractElementsCache> caches;
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private List<ArchiveFileListCache> archiveFileListCaches;
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@JsonIgnore
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private File cacheDir;
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public static ButlerCache getInstance() {
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return instance;
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}
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public void save() {
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for (AbstractElementsCache cache : caches) {
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cache.save();
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}
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}
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public List<FilesystemItem> getArchiveContent(BorgRepoConfig repoConfig, Archive archive) {
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if (archive == null || StringUtils.isBlank(archive.getArchive())) {
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return null;
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}
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ArchiveFileListCache cache = null;
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for (ArchiveFileListCache existingCache : archiveFileListCaches) {
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if (archive.equals(existingCache.getArchive())) {
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// Cache is already known:
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cache = existingCache;
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break;
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}
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}
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if (cache == null) {
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cache = new ArchiveFileListCache(cacheDir, repoConfig, archive);
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}
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return cache.getContent(repoConfig);
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}
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/**
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* Removes all cache files and clears all caches.
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*/
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public void removeAllCacheFiles() {
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File[] files = cacheDir.listFiles();
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for (File file : files) {
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if (AbstractElementsCache.isCacheFile(file)) {
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log.info("Deleting cache file: " + file.getAbsolutePath());
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file.delete();
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}
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}
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for (AbstractElementsCache cache : caches) {
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cache.clear();
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}
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}
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private ButlerCache() {
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cacheDir = new File(ConfigurationHandler.getInstance().getWorkingDir(), CACHE_DIR_NAME);
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if (!cacheDir.exists()) {
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log.info("Creating cache dir: " + cacheDir.getAbsolutePath());
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cacheDir.mkdir();
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}
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caches = new ArrayList<>();
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caches.add(repoInfoCache = new RepoInfoCache(cacheDir));
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caches.add(repoListCache = new RepoListCache(cacheDir));
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caches.add(archiveListCache = new ArchiveListCache(cacheDir));
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archiveFileListCaches = new ArrayList<>();
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}
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}
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