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Fix error with empty workflow svg and error when saving empty workflow #6408

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Fix error with empty workflow svg and error when saving empty workflow #6408

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67aaf88
Fix error with empty workflows
BartChris Feb 7, 2025
3bcfa7b
Further adjustments
BartChris Feb 7, 2025
f8dd94e
Ensure we always save an SVG file
BartChris Feb 10, 2025
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135 changes: 101 additions & 34 deletions Kitodo/src/main/java/org/kitodo/production/forms/WorkflowForm.java
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Original file line number Diff line number Diff line change
Expand Up @@ -28,10 +28,12 @@
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;

import javax.enterprise.context.SessionScoped;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import javax.faces.view.ViewScoped;
import javax.inject.Named;

import org.apache.commons.io.IOUtils;
Expand Down Expand Up @@ -59,7 +61,7 @@
import org.kitodo.production.workflow.model.Reader;

@Named("WorkflowForm")
@SessionScoped
@ViewScoped
public class WorkflowForm extends BaseForm {

private static final Logger logger = LogManager.getLogger(WorkflowForm.class);
Expand All @@ -75,6 +77,8 @@ public class WorkflowForm extends BaseForm {
private static final String SVG_EXTENSION = ".svg";
private static final String SVG_DIAGRAM_URI = "svgDiagramURI";
private static final String XML_DIAGRAM_URI = "xmlDiagramURI";
private Map<String, URI> activeDiagramsUris = new HashMap<>();
private String activeWorkflowTitle;
private final String workflowEditPath = MessageFormat.format(REDIRECT_PATH, "workflowEdit");
private Integer roleId;
private boolean migration;
Expand Down Expand Up @@ -120,19 +124,19 @@ public void setWorkflowStatus(WorkflowStatus workflowStatus) {
public void readXMLDiagram() {
URI xmlDiagramURI = new File(
ConfigCore.getKitodoDiagramDirectory() + encodeXMLDiagramName(this.workflow.getTitle())).toURI();
xmlDiagram = readFileContent(xmlDiagramURI);
}

try (InputStream inputStream = fileService.read(xmlDiagramURI);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream))) {
StringBuilder sb = new StringBuilder();
String line = bufferedReader.readLine();
while (Objects.nonNull(line)) {
sb.append(line).append("\n");
line = bufferedReader.readLine();
private String readFileContent(URI fileUri) {
if (fileService.fileExist(fileUri)) {
try (InputStream inputStream = fileService.read(fileUri);
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
return reader.lines().collect(Collectors.joining("\n"));
} catch (IOException e) {
Helper.setErrorMessage(e.getLocalizedMessage(), logger, e);
}
xmlDiagram = sb.toString();
} catch (IOException e) {
Helper.setErrorMessage(e.getLocalizedMessage(), logger, e);
}
return "";
}

/**
Expand All @@ -152,6 +156,11 @@ public String saveAndRedirect() {
if (!this.workflow.getTemplates().isEmpty()) {
updateTemplateTasks();
}
if (Objects.nonNull(activeWorkflowTitle)
&& !activeWorkflowTitle.equals(this.workflow.getTitle())) {
deleteOldWorkflowFiles(activeWorkflowTitle);
activeWorkflowTitle = this.workflow.getTitle();
}
if (migration) {
migration = false;
return MIGRATION_FORM_PATH + "&workflowId=" + workflow.getId();
Expand Down Expand Up @@ -245,20 +254,33 @@ public void delete() {
} else {
try {
ServiceManager.getWorkflowService().remove(this.workflow);
deleteOldWorkflowFiles(this.workflow.getTitle());

String diagramDirectory = ConfigCore.getKitodoDiagramDirectory();
URI svgDiagramURI = new File(
diagramDirectory + decodeXMLDiagramName(this.workflow.getTitle()) + SVG_EXTENSION).toURI();
URI xmlDiagramURI = new File(diagramDirectory + encodeXMLDiagramName(this.workflow.getTitle()))
.toURI();
} catch (DataException e) {
Helper.setErrorMessage(ERROR_DELETING, new Object[] {ObjectType.WORKFLOW.getTranslationSingular() },
logger, e);
}
}
}

private void deleteOldWorkflowFiles(String oldDiagramTitle) {
try {
String diagramDirectory = ConfigCore.getKitodoDiagramDirectory();
URI svgDiagramURI = new File(
diagramDirectory + decodeXMLDiagramName(oldDiagramTitle) + SVG_EXTENSION).toURI();
URI xmlDiagramURI = new File(diagramDirectory + encodeXMLDiagramName(oldDiagramTitle))
.toURI();
if (fileService.fileExist(svgDiagramURI)) {
fileService.delete(svgDiagramURI);
}
if (fileService.fileExist(xmlDiagramURI)) {
fileService.delete(xmlDiagramURI);
} catch (DataException | IOException e) {
Helper.setErrorMessage(ERROR_DELETING, new Object[] {ObjectType.WORKFLOW.getTranslationSingular() },
logger, e);
}
} catch (IOException e) {
Helper.setErrorMessage(ERROR_DELETING, new Object[] {ObjectType.WORKFLOW.getTranslationSingular() },
logger, e);
}

}

/**
Expand All @@ -277,19 +299,39 @@ private boolean saveFiles() throws IOException, WorkflowException {

xmlDiagram = requestParameterMap.get("editForm:workflowTabView:xmlDiagram");
if (Objects.nonNull(xmlDiagram)) {
svgDiagram = StringUtils.substringAfter(xmlDiagram, "kitodo-diagram-separator");
xmlDiagram = StringUtils.substringBefore(xmlDiagram, "kitodo-diagram-separator");
if (xmlDiagram.contains("kitodo-diagram-separator")) {
svgDiagram = StringUtils.substringAfter(xmlDiagram, "kitodo-diagram-separator");
xmlDiagram = StringUtils.substringBefore(xmlDiagram, "kitodo-diagram-separator");
}
if (xmlDiagram.isEmpty()) {
Helper.setErrorMessage("emptyWorkflow");
return false;
}
activeDiagramsUris.put(XML_DIAGRAM_URI, xmlDiagramURI);


Reader reader = new Reader(new ByteArrayInputStream(xmlDiagram.getBytes(StandardCharsets.UTF_8)));
reader.validateWorkflowTasks();

Converter converter = new Converter(new ByteArrayInputStream(xmlDiagram.getBytes(StandardCharsets.UTF_8)));
converter.validateWorkflowTaskList();

saveFile(svgDiagramURI, svgDiagram);
if (Objects.nonNull(svgDiagram)) {
saveFile(svgDiagramURI, svgDiagram);
activeDiagramsUris.put(SVG_DIAGRAM_URI, svgDiagramURI);
} else {
if (fileService.fileExist(activeDiagramsUris.get(SVG_DIAGRAM_URI))) {
try (InputStream svgInputStream = ServiceManager.getFileService().read(activeDiagramsUris.get(SVG_DIAGRAM_URI))) {
svgDiagram = IOUtils.toString(svgInputStream, StandardCharsets.UTF_8);
saveFile(svgDiagramURI, svgDiagram);
}
} else {
saveFile(svgDiagramURI, "");
}
activeDiagramsUris.put(SVG_DIAGRAM_URI, svgDiagramURI);
}
saveFile(xmlDiagramURI, xmlDiagram);
}

return fileService.fileExist(xmlDiagramURI) && fileService.fileExist(svgDiagramURI);
}

Expand Down Expand Up @@ -364,22 +406,29 @@ public String duplicate(Integer itemId) {
Map<String, URI> diagramsUris = getDiagramUris(baseWorkflow.getTitle());

URI xmlDiagramURI = diagramsUris.get(XML_DIAGRAM_URI);
URI svgDiagramURI = diagramsUris.get(SVG_DIAGRAM_URI);

this.workflow = ServiceManager.getWorkflowService().duplicateWorkflow(baseWorkflow);
setWorkflowStatus(WorkflowStatus.DRAFT);
Map<String, URI> diagramsCopyUris = getDiagramUris();

URI xmlDiagramCopyURI = diagramsCopyUris.get(XML_DIAGRAM_URI);

// Read XML diagram
try (InputStream xmlInputStream = ServiceManager.getFileService().read(xmlDiagramURI)) {
this.xmlDiagram = IOUtils.toString(xmlInputStream, StandardCharsets.UTF_8);
saveFile(xmlDiagramCopyURI, this.xmlDiagram);
} catch (IOException e) {
Helper.setErrorMessage("unableToDuplicateWorkflow", logger, e);
return this.stayOnCurrentPage;
}
return workflowEditPath;
} catch (DAOException e) {
// Read SVG diagram (use a separate input stream)
try (InputStream svgInputStream = ServiceManager.getFileService().read(svgDiagramURI)) {
this.svgDiagram = IOUtils.toString(svgInputStream, StandardCharsets.UTF_8);
}
// Store duplicated workflow in Flash scope
ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
externalContext.getFlash().put("duplicatedWorkflow", this.workflow);
externalContext.getFlash().put("xmlDiagram", this.xmlDiagram);
externalContext.getFlash().put("svgDiagram", this.svgDiagram);

return workflowEditPath + "&id=0";


} catch (IOException | DAOException e) {
Helper.setErrorMessage(ERROR_DUPLICATE, new Object[] {ObjectType.WORKFLOW.getTranslationSingular() },
logger, e);
return this.stayOnCurrentPage;
Expand Down Expand Up @@ -411,12 +460,30 @@ public void setWorkflowById(int id) {
*/
public void load(int id) {
try {
if (!Objects.equals(id, 0)) {
if (id > 0) {
// Normal case: Load workflow from database
Workflow workflow = ServiceManager.getWorkflowService().getById(id);
setWorkflow(workflow);
setWorkflowStatus(workflow.getStatus());
activeDiagramsUris = getDiagramUris(workflow.getTitle());
activeWorkflowTitle = workflow.getTitle();
readXMLDiagram();
this.dataEditorSettingsDefined = this.dataEditorSettingService.areDataEditorSettingsDefinedForWorkflow(workflow);
} else {
// Check if duplicated workflow is stored in Flash scope
ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
Map<String, Object> flash = externalContext.getFlash();

if (flash.containsKey("duplicatedWorkflow")) {
this.workflow = (Workflow) flash.get("duplicatedWorkflow");
this.xmlDiagram = (String) flash.get("xmlDiagram");
this.svgDiagram = (String) flash.get("svgDiagram");
setWorkflowStatus(workflow.getStatus());
this.dataEditorSettingsDefined = this.dataEditorSettingService.areDataEditorSettingsDefinedForWorkflow(workflow);
}
if (this.workflow.getClient() == null) {
this.workflow.setClient(ServiceManager.getUserService().getSessionClientOfAuthenticatedUser());
}
}
setSaveDisabled(false);
} catch (DAOException e) {
Expand Down
1 change: 1 addition & 0 deletions Kitodo/src/main/resources/messages/errors_de.properties
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,7 @@ docTypeNotFound=docType ''{0}'' wurde nicht im selektierten Regelsatz gefunden
duplicatedTitles=Es wurden dublette Ausgabe-Bezeichnungen gefunden. Dies erzeugt gegebenenfalls dublette Vorgangstitel!
duplicateWorkflowTitle=Ein Workflow mit dem Titel "{0}" existiert bereits.
emptySourceFolder=Der Quellordner zur Bildgenerierung ist leer
emptyWorkflow=Der Workflow ist leer und kann nicht gespeichert werden
errorDataIncomplete=Unvollst\u00E4ndige Daten\:
errorDatabaseReading=Fehler beim Datenbanklesen von ''{0}'' with ID {1}.
errorDeleting=Fehler beim L\u00F6schen von ''{0}''
Expand Down
1 change: 1 addition & 0 deletions Kitodo/src/main/resources/messages/errors_en.properties
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@ docTypeNotFound=docType ''{0}'' could not be found in selected ruleset
duplicatedTitles=Duplicate issue designations were found. This may produce duplicate process titles!
duplicateWorkflowTitle=Workflow with title "{0}" already exists.
emptySourceFolder=The source folder is empty
emptyWorkflow=The workflow is empty and cannot be saved
errorDataIncomplete=Incomplete data\:
errorDatabaseReading=Error on reading database for ''{0}'' with ID {1}.
errorDeleting=Error deleting ''{0}''
Expand Down
1 change: 1 addition & 0 deletions Kitodo/src/main/resources/messages/errors_es.properties
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ docketTitleDuplicated=Ya existe una hoja de ruta con el mismo título.
docTypeNotFound=docType ''{0}'' o se encontró en el conjunto de reglas seleccionado
duplicatedTitles=Se han encontrado títulos de salida duplicados. ¡Esto puede crear títulos de proceso duplicados!
duplicateWorkflowTitle=El flujo de trabajo con el título "{0}" ya existe.
emptyWorkflow=El flujo de trabajo está vacío y no se puede guardar
emptySourceFolder=La carpeta de origen para la generación de imágenes está vacía
errorDataIncomplete=Datos incompletos\:
errorDatabaseReading=Error al leer ''{0}'' con ID {1} de la base de datos.
Expand Down
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