MIR-1343 Added class MIRMigrationStaticContent

mir-module/src/main/java/org/mycore/mir/migration/MIRMigrationStaticContent.java

@@ -0,0 +1,73 @@
+package org.mycore.mir.migration;
+
+import jakarta.servlet.ServletContext;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.jdom2.Document;
+import org.jdom2.input.SAXBuilder;
+import org.mycore.common.config.MCRConfiguration2;
+import org.mycore.common.events.MCRStartupHandler.AutoExecutable;
+import org.mycore.datamodel.metadata.MCRMetadataManager;
+import org.mycore.datamodel.metadata.MCRObjectID;
+import org.mycore.services.queuedjob.staticcontent.MCRJobStaticContentGenerator;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+
+/**
+ * Class converts automatically all static history content on start up.
+ *
+ * @author shermann (Silvio Hermann)
+ * */
+public class MIRMigrationStaticContent implements AutoExecutable {
+
+    protected static final Path MIR_STATIC_HISTORY_PATH = Path.of(
+        MCRConfiguration2.getString("MCR.Object.Static.Content.Default.Path").get() + File.separator + "mir-history");
+
+    private static Logger LOGGER = LogManager.getLogger(MIRMigrationStaticContent.class);
+
+    @Override
+    public String getName() {
+
+        return MIRMigrationStaticContent.class.getName();
+    }
+
+    @Override
+    public int getPriority() {
+        return 0;
+    }
+
+    @Override
+    public void startUp(ServletContext servletContext) {
+        try {
+            SAXBuilder builder = new SAXBuilder();
+            Files.walkFileTree(MIR_STATIC_HISTORY_PATH, new SimpleFileVisitor<Path>() {
+                @Override
+                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+                    try (InputStream is = Files.newInputStream(file)) {
+                        Document history = builder.build(is);
+                        if ("table".equals(history.getRootElement().getName())) {
+                            String filename = file.getFileName().toString();
+                            String id = filename.substring(0, filename.lastIndexOf('.'));
+                            LOGGER.info("Migrating static history for object {}", id);
+
+                            MCRJobStaticContentGenerator generator = new MCRJobStaticContentGenerator("mir-history");
+                            generator.generate(MCRMetadataManager.retrieveMCRObject(MCRObjectID.getInstance(id)));
+                        }
+                    } catch (Exception e) {
+                        LOGGER.error("Could not migrate static mcr-history for file {}", file.getFileName(), e);
+                    }
+                    return FileVisitResult.CONTINUE;
+                }
+            });
+        } catch (IOException e) {
+            LOGGER.error("Error occured during migration of static history content", e);
+        }
+    }
+}

mir-module/src/main/resources/config/mir/mycore.properties

@@ -780,3 +780,5 @@ MIR.Response.Facet.mods.genre.ClassId=mir_genres
 
 MCR.ContentTransformer.svg-download.Class      = org.mycore.common.content.transformer.MCRXSLTransformer
 MCR.ContentTransformer.svg-download.Stylesheet = xslt/generate-svg-by-type.xsl
+
+MCR.Startup.Class = %MCR.Startup.Class%,org.mycore.mir.migration.MIRMigrationStaticContent