X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.maintenance%2Fsrc%2Forg%2Fargeo%2Fmaintenance%2Fbackup%2FLogicalBackup.java;h=60e8f8e5d89d13ec5cbceb728aa8a6f33a16e0f6;hb=54440e81b1446dc13897f4add75ea6607f30a8de;hp=4f7a2cfea561e7806a867a69268b9dcd2921b86f;hpb=2606b4b145577c4767c37c464e3f517e49a98100;p=lgpl%2Fargeo-commons.git diff --git a/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalBackup.java b/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalBackup.java index 4f7a2cfea..60e8f8e5d 100644 --- a/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalBackup.java +++ b/org.argeo.maintenance/src/org/argeo/maintenance/backup/LogicalBackup.java @@ -18,6 +18,7 @@ import java.util.Enumeration; 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; @@ -42,6 +43,8 @@ import javax.jcr.Session; 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; @@ -50,7 +53,6 @@ import org.argeo.jcr.JcrException; 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 @@ -64,6 +66,10 @@ public class LogicalBackup implements Runnable { 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; @@ -73,13 +79,19 @@ public class LogicalBackup implements Runnable { private ExecutorService executorService; + private boolean performSoftwareBackup = false; + + private Map 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 @@ -95,9 +107,12 @@ public class LogicalBackup implements Runnable { } 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 @@ -117,18 +132,37 @@ public class LogicalBackup implements Runnable { 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> contentPathsFuture = executorService @@ -140,33 +174,51 @@ public class LogicalBackup implements Runnable { } } + 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> contentPathsFuture = executorService + .submit(() -> performNodeBackup(defaultWorkspace, nodePath)); + executorService.submit(() -> performFilesBackup(defaultWorkspace, contentPathsFuture)); + } + } finally { + Jcr.logout(session); + } + + } + protected Set 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 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); } @@ -177,7 +229,8 @@ public class LogicalBackup implements Runnable { 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; @@ -185,23 +238,55 @@ public class LogicalBackup implements Runnable { 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); } @@ -221,6 +306,21 @@ public class LogicalBackup implements Runnable { } } + 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(); @@ -335,4 +435,15 @@ public class LogicalBackup implements Runnable { } + 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; + } }