Work on logical backups.

[lgpl/argeo-commons.git] / org.argeo.maintenance / src / org / argeo / maintenance / backup / LogicalRestore.java

diff --git a/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalRestore.java b/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalRestore.java
new file mode 100644 (file)
index 0000000..b430af6
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+++ b/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalRestore.java
@@ -0,0 +1,52 @@
+package org.argeo.maintenance.backup;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.DirectoryStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import javax.jcr.ImportUUIDBehavior;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.apache.commons.io.FilenameUtils;
+import org.argeo.jcr.JcrException;
+import org.argeo.jcr.JcrUtils;
+import org.osgi.framework.BundleContext;
+
+/** Restores a backup in the format defined by {@link LogicalBackup}. */
+public class LogicalRestore implements Runnable {
+       private final Repository repository;
+       private final BundleContext bundleContext;
+       private final Path basePath;
+
+       public LogicalRestore(BundleContext bundleContext, Repository repository, Path basePath) {
+               this.repository = repository;
+               this.basePath = basePath;
+               this.bundleContext = bundleContext;
+       }
+
+       @Override
+       public void run() {
+               Path workspaces = basePath.resolve(LogicalBackup.WORKSPACES_BASE);
+               try (DirectoryStream<Path> xmls = Files.newDirectoryStream(workspaces, "*.xml")) {
+                       for (Path workspacePath : xmls) {
+                               String workspaceName = FilenameUtils.getBaseName(workspacePath.getFileName().toString());
+                               Session session = JcrUtils.loginOrCreateWorkspace(repository, workspaceName);
+                               try (InputStream in = Files.newInputStream(workspacePath)) {
+                                       session.getWorkspace().importXML("/", in,
+                                                       ImportUUIDBehavior.IMPORT_UUID_COLLISION_REPLACE_EXISTING);
+                               } finally {
+                                       JcrUtils.logoutQuietly(session);
+                               }
+                       }
+               } catch (IOException e) {
+                       throw new RuntimeException("Cannot restore backup from " + basePath, e);
+               } catch (RepositoryException e) {
+                       throw new JcrException("Cannot restore backup from " + basePath, e);
+               }
+       }
+
+}