import java.util.HashMap;
import java.util.Map;
import java.util.Set;
+import java.util.TreeMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
+import org.apache.jackrabbit.api.JackrabbitSession;
+import org.apache.jackrabbit.api.JackrabbitValue;
import org.argeo.api.NodeConstants;
import org.argeo.api.NodeUtils;
import org.argeo.jackrabbit.client.ClientDavexRepositoryFactory;
import org.argeo.jcr.JcrUtils;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
-import org.xml.sax.SAXException;
/**
* Performs a backup of the data based only on programmatic interfaces. Useful
public final static String WORKSPACES_BASE = "workspaces/";
public final static String FILES_BASE = "files/";
public final static String OSGI_BASE = "share/osgi/";
+
+ public final static String JCR_SYSTEM = "jcr:system";
+ public final static String JCR_VERSION_STORAGE_PATH = "/jcr:system/jcr:versionStorage";
+
private final Repository repository;
private String defaultWorkspace;
private final BundleContext bundleContext;
private ExecutorService executorService;
+ private boolean performSoftwareBackup = false;
+
+ private Map<String, String> checksums = new TreeMap<>();
+
+ private int threadCount = 5;
+
+ private boolean backupFailed = false;
+
public LogicalBackup(BundleContext bundleContext, Repository repository, Path basePath) {
this.repository = repository;
this.zout = null;
this.basePath = basePath;
this.bundleContext = bundleContext;
-
- executorService = Executors.newFixedThreadPool(3);
}
@Override
}
public void perform() throws RepositoryException, IOException {
+ if (executorService != null && !executorService.isTerminated())
+ throw new IllegalStateException("Another backup is running");
+ executorService = Executors.newFixedThreadPool(threadCount);
long begin = System.currentTimeMillis();
// software backup
- if (bundleContext != null)
+ if (bundleContext != null && performSoftwareBackup)
executorService.submit(() -> performSoftwareBackup(bundleContext));
// data backup
executorService.awaitTermination(24, TimeUnit.HOURS);
} catch (InterruptedException e) {
// silent
+ throw new IllegalStateException("Backup was interrupted before completion", e);
+ }
+ }
+ // versions
+ executorService = Executors.newFixedThreadPool(threadCount);
+ try {
+ performVersionsBackup();
+ } finally {
+ executorService.shutdown();
+ try {
+ executorService.awaitTermination(24, TimeUnit.HOURS);
+ } catch (InterruptedException e) {
+ // silent
+ throw new IllegalStateException("Backup was interrupted before completion", e);
}
}
long duration = System.currentTimeMillis() - begin;
- log.info("System logical backup completed in " + (duration / 60000) + "min " + (duration / 1000) + "s");
+ if (isBackupFailed())
+ log.info("System logical backup failed after " + (duration / 60000) + "min " + (duration / 1000) + "s");
+ else
+ log.info("System logical backup completed in " + (duration / 60000) + "min " + (duration / 1000) + "s");
}
protected void performDataBackup(String workspaceName) throws RepositoryException, IOException {
Session session = login(workspaceName);
try {
nodes: for (NodeIterator nit = session.getRootNode().getNodes(); nit.hasNext();) {
+ if (isBackupFailed())
+ return;
Node nodeToExport = nit.nextNode();
- if ("jcr:system".equals(nodeToExport.getName()) && !workspaceName.equals(defaultWorkspace))
+ if (JCR_SYSTEM.equals(nodeToExport.getName()))
continue nodes;
String nodePath = nodeToExport.getPath();
Future<Set<String>> contentPathsFuture = executorService
}
}
+ protected void performVersionsBackup() throws RepositoryException, IOException {
+ Session session = login(defaultWorkspace);
+ Node versionStorageNode = session.getNode(JCR_VERSION_STORAGE_PATH);
+ try {
+ for (NodeIterator nit = versionStorageNode.getNodes(); nit.hasNext();) {
+ Node nodeToExport = nit.nextNode();
+ String nodePath = nodeToExport.getPath();
+ if (isBackupFailed())
+ return;
+ Future<Set<String>> contentPathsFuture = executorService
+ .submit(() -> performNodeBackup(defaultWorkspace, nodePath));
+ executorService.submit(() -> performFilesBackup(defaultWorkspace, contentPathsFuture));
+ }
+ } finally {
+ Jcr.logout(session);
+ }
+
+ }
+
protected Set<String> performNodeBackup(String workspaceName, String nodePath) {
Session session = login(workspaceName);
try {
Node nodeToExport = session.getNode(nodePath);
- String nodeName = nodeToExport.getName();
+// String nodeName = nodeToExport.getName();
// if (nodeName.startsWith("jcr:") || nodeName.startsWith("rep:"))
// continue nodes;
// // TODO make it more robust / configurable
// if (nodeName.equals("user"))
// continue nodes;
- String relativePath = WORKSPACES_BASE + workspaceName + "/" + nodeName + ".xml";
+ String relativePath = WORKSPACES_BASE + workspaceName + nodePath + ".xml";
OutputStream xmlOut = openOutputStream(relativePath);
BackupContentHandler contentHandler;
try (Writer writer = new BufferedWriter(new OutputStreamWriter(xmlOut, StandardCharsets.UTF_8))) {
- contentHandler = new BackupContentHandler(writer, session);
+ contentHandler = new BackupContentHandler(writer, nodeToExport);
session.exportSystemView(nodeToExport.getPath(), contentHandler, true, false);
if (log.isDebugEnabled())
- log.debug(workspaceName + ":/" + nodeName + " metadata exported to " + relativePath);
+ log.debug(workspaceName + ":" + nodePath + " metadata exported to " + relativePath);
}
// Files
Set<String> contentPaths = contentHandler.getContentPaths();
return contentPaths;
- } catch (IOException | SAXException e) {
- throw new RuntimeException("Cannot backup node " + workspaceName + ":" + nodePath, e);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot backup node " + workspaceName + ":" + nodePath, e);
+ } catch (Exception e) {
+ markBackupFailed("Cannot backup node " + workspaceName + ":" + nodePath, e);
+ throw new ThreadDeath();
} finally {
Jcr.logout(session);
}
try {
contentPaths = contentPathsFuture.get(24, TimeUnit.HOURS);
} catch (InterruptedException | ExecutionException | TimeoutException e1) {
- throw new RuntimeException("Cannot retrieve content paths for workspace " + workspaceName);
+ markBackupFailed("Cannot retrieve content paths for workspace " + workspaceName, e1);
+ return;
}
if (contentPaths == null || contentPaths.size() == 0)
return;
try {
String workspacesFilesBasePath = FILES_BASE + workspaceName;
for (String path : contentPaths) {
+ if (isBackupFailed())
+ return;
Node contentNode = session.getNode(path);
- Binary binary = contentNode.getProperty(Property.JCR_DATA).getBinary();
- String fileRelativePath = workspacesFilesBasePath + contentNode.getParent().getPath();
- try (InputStream in = binary.getStream(); OutputStream out = openOutputStream(fileRelativePath)) {
- IOUtils.copy(in, out);
- if (log.isTraceEnabled())
- log.trace("Workspace " + workspaceName + ": file content exported to " + fileRelativePath);
+ Binary binary = null;
+ try {
+ binary = contentNode.getProperty(Property.JCR_DATA).getBinary();
+ String fileRelativePath = workspacesFilesBasePath + contentNode.getParent().getPath();
+
+ // checksum
+ boolean skip = false;
+ String checksum = null;
+ if (session instanceof JackrabbitSession) {
+ JackrabbitValue value = (JackrabbitValue) contentNode.getProperty(Property.JCR_DATA).getValue();
+// ReferenceBinary referenceBinary = (ReferenceBinary) binary;
+ checksum = value.getContentIdentity();
+ }
+ if (checksum != null) {
+ if (!checksums.containsKey(checksum)) {
+ checksums.put(checksum, fileRelativePath);
+ } else {
+ skip = true;
+ String sourcePath = checksums.get(checksum);
+ if (log.isTraceEnabled())
+ log.trace(fileRelativePath + " : already " + sourcePath + " with checksum " + checksum);
+ createLink(sourcePath, fileRelativePath);
+ try (Writer writerSum = new OutputStreamWriter(
+ openOutputStream(fileRelativePath + ".sha256"), StandardCharsets.UTF_8)) {
+ writerSum.write(checksum);
+ }
+ }
+ }
+
+ // copy file
+ if (!skip)
+ try (InputStream in = binary.getStream();
+ OutputStream out = openOutputStream(fileRelativePath)) {
+ IOUtils.copy(in, out);
+ if (log.isTraceEnabled())
+ log.trace("Workspace " + workspaceName + ": file content exported to "
+ + fileRelativePath);
+ }
} finally {
JcrUtils.closeQuietly(binary);
}
}
if (log.isDebugEnabled())
log.debug(workspaceName + ":" + contentPaths.size() + " files exported to " + workspacesFilesBasePath);
- } catch (RepositoryException e) {
- throw new JcrException("Cannot backup files from " + workspaceName + ":", e);
- } catch (IOException e) {
- throw new RuntimeException("Cannot backup files from " + workspaceName + ":", e);
+ } catch (Exception e) {
+ markBackupFailed("Cannot backup files from " + workspaceName + ":", e);
} finally {
Jcr.logout(session);
}
}
}
+ protected void createLink(String source, String target) throws IOException {
+ if (zout != null) {
+ // TODO implement for zip
+ throw new UnsupportedOperationException();
+ } else if (basePath != null) {
+ Path sourcePath = basePath.resolve(Paths.get(source));
+ Path targetPath = basePath.resolve(Paths.get(target));
+ Path relativeSource = targetPath.getParent().relativize(sourcePath);
+ Files.createDirectories(targetPath.getParent());
+ Files.createSymbolicLink(targetPath, relativeSource);
+ } else {
+ throw new UnsupportedOperationException();
+ }
+ }
+
protected void closeOutputStream(String relativePath, OutputStream out) throws IOException {
if (zout != null) {
zout.closeEntry();
}
+ protected synchronized void markBackupFailed(Object message, Exception e) {
+ log.error(message, e);
+ backupFailed = true;
+ notifyAll();
+ if (executorService != null)
+ executorService.shutdownNow();
+ }
+
+ protected boolean isBackupFailed() {
+ return backupFailed;
+ }
}
projects / lgpl / argeo-commons.git / blobdiff