From feff94fdffe67ba32b92e932704d2352c7778543 Mon Sep 17 00:00:00 2001
From: Kai Reinhard <K.Reinhard@micromata.de>
Date: Mon, 10 Dec 2018 07:17:27 +0000
Subject: [PATCH] First cache migrated successfully to JSC.

---
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveStats.java      |    5 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/cache/JCSCache.java              |   27 ++++++++
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Stats.java             |    5 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoInfo.java          |    5 +
 README.adoc                                                                            |    2 
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive2.java          |    5 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Repository.java        |    5 +
 borgbutler-core/src/test/java/de/micromata/borgbutler/cache/CacheTest.java             |    6 +-
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Cache.java             |    5 +
 borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/ReposRest.java     |    8 ++
 /dev/null                                                                              |   46 ---------------
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive.java           |    5 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Encryption.java        |    5 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoList.java          |    4 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveInfo.java       |    4 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepositoryMatcher.java |    6 +
 borgbutler-core/src/main/java/de/micromata/borgbutler/cache/ButlerCache.java           |   28 ++++++--
 borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/FilesystemItem.java    |    5 +
 18 files changed, 102 insertions(+), 74 deletions(-)

diff --git a/README.adoc b/README.adoc
index c5a5f37..d1e57fc 100644
--- a/README.adoc
+++ b/README.adoc
@@ -28,7 +28,7 @@
 }
 ----
 * `cache_max_disc_size_mb` specifies the cache size BorgButler may use for caching borg results (such as repository
-information, archive information and also file list of archive content.
+information, archive information and also file list of archive content).
 * `repo-configs`: You may add a list of all your repos with the borg variables. The name is only used for displaying
 purposes.
 
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/ButlerCache.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/ButlerCache.java
index 946b81d..15a5334 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/ButlerCache.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/ButlerCache.java
@@ -1,6 +1,7 @@
 package de.micromata.borgbutler.cache;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import de.micromata.borgbutler.BorgCommands;
 import de.micromata.borgbutler.config.BorgRepoConfig;
 import de.micromata.borgbutler.config.ConfigurationHandler;
 import de.micromata.borgbutler.json.borg.Archive;
@@ -8,6 +9,7 @@
 import de.micromata.borgbutler.json.borg.RepoInfo;
 import de.micromata.borgbutler.json.borg.Repository;
 import lombok.Getter;
+import org.apache.commons.jcs.access.CacheAccess;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -21,8 +23,8 @@
     public static final String CACHE_DIR_NAME = "caches";
     private static ButlerCache instance = new ButlerCache();
 
-    @Getter
-    private RepoInfoCache repoInfoCache;
+    private JCSCache jcsCache = JCSCache.getInstance();
+    private CacheAccess<String, RepoInfo> repoInfoCacheAccess;
     @Getter
     private RepoListCache repoListCache;
     private ArchiveListCache archiveListCache;
@@ -43,21 +45,31 @@
     }
 
     public Repository getRepository(String idOrName) {
-        BorgRepoConfig repoConfig = ConfigurationHandler.getConfiguration().getRepoConfig(idOrName);
-        RepoInfo repoInfo = repoInfoCache.get(repoConfig, idOrName);
+        RepoInfo repoInfo = getRepoInfo(idOrName);
         if (repoInfo == null) {
-            log.warn("Repo with name or id '" + idOrName + "' not found.");
             return null;
         }
         return repoInfo.getRepository();
     }
 
+    public RepoInfo getRepoInfo(String idOrName) {
+        BorgRepoConfig repoConfig = ConfigurationHandler.getConfiguration().getRepoConfig(idOrName);
+        RepoInfo repoInfo = repoInfoCacheAccess.get(repoConfig.getRepo());
+        if (repoInfo == null) {
+            repoInfo = BorgCommands.info(repoConfig);
+            repoInfoCacheAccess.put(repoConfig.getRepo(), repoInfo);
+        }
+        if (repoInfo == null) {
+            log.warn("Repo with name '" + idOrName + "' not found.");
+        }
+        return repoInfo;
+    }
+
     public List<Repository> getAllRepositories() {
         List<Repository> repositories = new ArrayList<>();
         for (BorgRepoConfig repoConfig : ConfigurationHandler.getConfiguration().getRepoConfigs()) {
-            RepoInfo repoInfo = repoInfoCache.get(repoConfig, repoConfig.getName());
+            RepoInfo repoInfo = getRepoInfo(repoConfig.getName());
             if (repoInfo == null) {
-                log.warn("Repo with name '" + repoConfig.getName() + "' not found.");
                 continue;
             }
             repositories.add(repoInfo.getRepository());
@@ -106,9 +118,9 @@
             cacheDir.mkdir();
         }
         caches = new ArrayList<>();
-        caches.add(repoInfoCache = new RepoInfoCache(cacheDir));
         caches.add(repoListCache = new RepoListCache(cacheDir));
         caches.add(archiveListCache = new ArchiveListCache(cacheDir));
         archiveFileListCaches = new ArrayList<>();
+        this.repoInfoCacheAccess = jcsCache.getJCSCache();
     }
 }
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/jcs/JCSCache.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/JCSCache.java
similarity index 74%
rename from borgbutler-core/src/main/java/de/micromata/borgbutler/jcs/JCSCache.java
rename to borgbutler-core/src/main/java/de/micromata/borgbutler/cache/JCSCache.java
index f2d4599..5f4fa4d 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/jcs/JCSCache.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/JCSCache.java
@@ -1,4 +1,4 @@
-package de.micromata.borgbutler.jcs;
+package de.micromata.borgbutler.cache;
 
 import de.micromata.borgbutler.config.Configuration;
 import de.micromata.borgbutler.config.ConfigurationHandler;
@@ -18,6 +18,30 @@
     private static final String CONFIG_FILE = "jcs-basic-config.properties";
     public static final String CACHE_DIR_NAME = "cache";
 
+    public enum Region {DEFAULT, ARCHIVE_CONTENT}
+
+    public static JCSCache getInstance() {
+        return instance;
+    }
+
+    /**
+     * @param <K>
+     * @param <V>
+     * @return JCS cache for default region.
+     */
+    public <K, V> CacheAccess<K, V> getJCSCache() {
+        return JCS.getInstance("default");
+    }
+
+    public <K, V> CacheAccess<K, V> getJCSCache(Region region) {
+        switch (region) {
+            case ARCHIVE_CONTENT:
+                return JCS.getInstance("default");
+            default:
+                return getJCSCache();
+        }
+    }
+
     private JCSCache() {
         Configuration configuration = ConfigurationHandler.getConfiguration();
         File cacheDir = new File(ConfigurationHandler.getInstance().getWorkingDir(), CACHE_DIR_NAME);
@@ -32,7 +56,6 @@
         } catch (IOException ex) {
             log.error("Error while loading jcs config file '" + CONFIG_FILE + "': " + ex.getMessage(), ex);
         }
-        CacheAccess<String, String> jcs = JCS.getInstance("default");
         props.setProperty("jcs.auxiliary.DC.attributes.DiskPath", cacheDir.getAbsolutePath());
         props.setProperty("jcs.auxiliary.DC2.attributes.DiskPath", cacheDir.getAbsolutePath());
         int cacheMaxDiscSizeMB = configuration.getCacheMaxDiscSizeMB();
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/RepoInfoCache.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/RepoInfoCache.java
deleted file mode 100644
index 703e504..0000000
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/cache/RepoInfoCache.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package de.micromata.borgbutler.cache;
-
-import de.micromata.borgbutler.BorgCommands;
-import de.micromata.borgbutler.config.BorgRepoConfig;
-import de.micromata.borgbutler.json.borg.RepoInfo;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.File;
-
-public class RepoInfoCache extends AbstractElementsCache<RepoInfo> {
-    private static Logger log = LoggerFactory.getLogger(RepoInfoCache.class);
-    public static final String CACHE_REPOS_BASENAME = "repo-infos";
-
-    @Override
-    protected RepoInfo load(BorgRepoConfig repoConfig, String identifier) {
-        RepoInfo repoInfo = BorgCommands.info(repoConfig);
-        this.elements.put(getIdentifier(repoInfo), repoInfo);
-        return repoInfo;
-    }
-
-    @Override
-    protected boolean matches(RepoInfo element, String identifier) {
-        return element.matches(identifier);
-    }
-
-    @Override
-    protected String getIdentifier(RepoInfo element) {
-        return element.getRepository().getId();
-    }
-
-    @Override
-    protected void updateFrom(RepoInfo dest, RepoInfo source) {
-        dest.updateFrom(source);
-    }
-
-    /**
-     * Needed by jackson for deserialization.
-     */
-    RepoInfoCache() {
-    }
-
-    RepoInfoCache(File cacheDir) {
-        super(cacheDir, CACHE_REPOS_BASENAME);
-    }
-}
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive.java
index 6eee7de..0f76eb6 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive.java
@@ -5,10 +5,13 @@
 import lombok.Getter;
 import lombok.Setter;
 
+import java.io.Serializable;
+
 /**
  * This object is given by <tt>borg list repo</tt>.
  */
-public class Archive {
+public class Archive implements Serializable {
+    private static final long serialVersionUID = -7872260170265536732L;
     @Getter
     private String archive;
     @Getter
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive2.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive2.java
index 47831dd..2c4c81b 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive2.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Archive2.java
@@ -4,10 +4,13 @@
 import de.micromata.borgbutler.json.JsonUtils;
 import lombok.Getter;
 
+import java.io.Serializable;
+
 /**
  * This object is given by <tt>borg list archive</tt>.
  */
-public class Archive2 {
+public class Archive2 implements Serializable {
+    private static final long serialVersionUID = 4734056884088174992L;
     @Getter
     @JsonProperty("chunker_params")
     private int[] chunkerParams;
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveInfo.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveInfo.java
index 76b40bc..f8164fc 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveInfo.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveInfo.java
@@ -4,12 +4,14 @@
 import lombok.Getter;
 import lombok.Setter;
 
+import java.io.Serializable;
 import java.util.List;
 
 /**
  * Result of <tt>borg list repo</tt>.
  */
-public class ArchiveInfo extends RepositoryMatcher {
+public class ArchiveInfo extends RepositoryMatcher implements Serializable {
+    private static final long serialVersionUID = -4200553322856662346L;
     @Getter
     private List<Archive2> archives;
     @Getter
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveStats.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveStats.java
index 6d3d9ce..e6cfa28 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveStats.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/ArchiveStats.java
@@ -3,7 +3,10 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Getter;
 
-public class ArchiveStats {
+import java.io.Serializable;
+
+public class ArchiveStats implements Serializable {
+    private static final long serialVersionUID = -7603297185652222010L;
     @Getter
     @JsonProperty("compressed_size")
     private long compressedSize;
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Cache.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Cache.java
index 4f5ec81..4184750 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Cache.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Cache.java
@@ -2,7 +2,10 @@
 
 import lombok.Getter;
 
-public class Cache {
+import java.io.Serializable;
+
+public class Cache implements Serializable {
+    private static final long serialVersionUID = -1728825838475013561L;
     @Getter
     private String path;
     @Getter
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Encryption.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Encryption.java
index 8225da4..c206e48 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Encryption.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Encryption.java
@@ -2,7 +2,10 @@
 
 import lombok.Getter;
 
-public class Encryption {
+import java.io.Serializable;
+
+public class Encryption implements Serializable {
+    private static final long serialVersionUID = -4867140003118289187L;
     @Getter
     private String mode;
 }
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/FilesystemItem.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/FilesystemItem.java
index 35ea7bf..623f738 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/FilesystemItem.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/FilesystemItem.java
@@ -2,7 +2,10 @@
 
 import lombok.Getter;
 
-public class FilesystemItem {
+import java.io.Serializable;
+
+public class FilesystemItem implements Serializable {
+    private static final long serialVersionUID = -5545350851640655468L;
     /**
      * d (directory), - (file)
      */
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoInfo.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoInfo.java
index 6c9ca1b..f660f6c 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoInfo.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoInfo.java
@@ -3,7 +3,10 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Getter;
 
-public class RepoInfo extends RepositoryMatcher {
+import java.io.Serializable;
+
+public class RepoInfo extends RepositoryMatcher implements Serializable {
+    private static final long serialVersionUID = -1588038325129799400L;
     @Getter
     @JsonProperty("security_dir")
     private String securityDir;
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoList.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoList.java
index d9993da..25ba5a1 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoList.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepoList.java
@@ -2,9 +2,11 @@
 
 import lombok.Getter;
 
+import java.io.Serializable;
 import java.util.List;
 
-public class RepoList extends RepositoryMatcher {
+public class RepoList extends RepositoryMatcher implements Serializable {
+    private static final long serialVersionUID = 1006757749929526034L;
     @Getter
     private List<Archive> archives;
     @Getter
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Repository.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Repository.java
index 340c5ba..bc6895c 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Repository.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Repository.java
@@ -6,7 +6,10 @@
 import lombok.Getter;
 import lombok.Setter;
 
-public class Repository {
+import java.io.Serializable;
+
+public class Repository implements Serializable {
+    private static final long serialVersionUID = 1278802519434516280L;
     /**
      * A name describing this config. Only used for displaying purposes. This is automatically set with the name
      * of the repository configuration.
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepositoryMatcher.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepositoryMatcher.java
index 207c516..4060753 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepositoryMatcher.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/RepositoryMatcher.java
@@ -5,7 +5,11 @@
 import lombok.Getter;
 import lombok.Setter;
 
-public abstract class RepositoryMatcher {
+import java.io.Serializable;
+
+public abstract class RepositoryMatcher implements Serializable {
+    private static final long serialVersionUID = -3672403959096363628L;
+
     @Getter
     protected Repository repository;
     @Getter
diff --git a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Stats.java b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Stats.java
index e569ad6..4720aee 100644
--- a/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Stats.java
+++ b/borgbutler-core/src/main/java/de/micromata/borgbutler/json/borg/Stats.java
@@ -3,7 +3,10 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Getter;
 
-public class Stats {
+import java.io.Serializable;
+
+public class Stats implements Serializable {
+    private static final long serialVersionUID = 9141985857856734073L;
     @Getter
     @JsonProperty("total_chunks")
     private long totalChunks;
diff --git a/borgbutler-core/src/test/java/de/micromata/borgbutler/cache/CacheTest.java b/borgbutler-core/src/test/java/de/micromata/borgbutler/cache/CacheTest.java
index b8c70a2..e944dfe 100644
--- a/borgbutler-core/src/test/java/de/micromata/borgbutler/cache/CacheTest.java
+++ b/borgbutler-core/src/test/java/de/micromata/borgbutler/cache/CacheTest.java
@@ -32,15 +32,15 @@
         //butlerCache.removeAllCacheFiles();
         {
             for (BorgRepoConfig repoConfig : ConfigurationHandler.getConfiguration().getRepoConfigs()) {
-                RepoInfo repoInfo = ButlerCache.getInstance().getRepoInfoCache().get(repoConfig, repoConfig.getRepo());
+                RepoInfo repoInfo = ButlerCache.getInstance().getRepoInfo(repoConfig.getRepo());
             }
-            assertEquals(config.getRepoConfigs().size(), ButlerCache.getInstance().getRepoInfoCache().getElements().size());
+            assertEquals(config.getRepoConfigs().size(), ButlerCache.getInstance().getAllRepositories().size());
         }
         {
             for (BorgRepoConfig repoConfig : ConfigurationHandler.getConfiguration().getRepoConfigs()) {
                 RepoList repoList = ButlerCache.getInstance().getRepoListCache().get(repoConfig, repoConfig.getRepo());
             }
-            assertEquals(config.getRepoConfigs().size(), ButlerCache.getInstance().getRepoInfoCache().getElements().size());
+            assertEquals(config.getRepoConfigs().size(), ButlerCache.getInstance().getAllRepositories().size());
         }
         List<BorgRepoConfig> repoConfigs = ConfigurationHandler.getConfiguration().getRepoConfigs();
         Archive archive = null;
diff --git a/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/ReposRest.java b/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/ReposRest.java
index 23bcb52..49b9431 100644
--- a/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/ReposRest.java
+++ b/borgbutler-server/src/main/java/de/micromata/borgbutler/server/rest/ReposRest.java
@@ -4,6 +4,8 @@
 import de.micromata.borgbutler.json.JsonUtils;
 import de.micromata.borgbutler.json.borg.Repository;
 import org.apache.commons.collections4.CollectionUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import javax.ws.rs.GET;
 import javax.ws.rs.Path;
@@ -14,6 +16,8 @@
 
 @Path("/repos")
 public class ReposRest {
+    private static Logger log = LoggerFactory.getLogger(ReposRest.class);
+
     @GET
     @Path("refresh")
     @Produces(MediaType.TEXT_PLAIN)
@@ -22,8 +26,8 @@
      * @return "OK"
      */
     public String refresh() {
-        ButlerCache.getInstance().getRepoInfoCache().clearAndReset();
-        return "OK";
+        log.error("refresh not yet implemented.");
+        return "FAILED";
     }
 
     @GET

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