/**
* @param inFile
* @param outFile
* @param inExt
* @param outExt
* @throws IOException
*/
private void doMigrate(String inFile, String outFile, String inExt, String outExt)
throws IOException {
DigitalObject input =
new DigitalObject.Builder(Content.byReference(new File(inFile).toURI().toURL()))
.permanentUri(URI.create("http://some"))
.build();
System.out.println("Input: " + input);
FormatRegistry format = FormatRegistryFactory.getFormatRegistry();
MigrateResult mr =
dom.migrate(
input, format.createExtensionUri(inExt), format.createExtensionUri(outExt), null);
ServiceReport sr = mr.getReport();
System.out.println("Got Report: " + sr);
DigitalObject doOut = mr.getDigitalObject();
assertTrue("Resulting digital object is null.", doOut != null);
System.out.println("Output: " + doOut);
System.out.println("Output.content: " + doOut.getContent());
System.out.println(
"Output.content.read().available(): " + doOut.getContent().getInputStream().available());
File out = new File(outFile);
writeInStreamToOutStream(doOut.getContent().getInputStream(), new FileOutputStream(out));
}
/**
* @return an URI to the resulting digital object's data registry reference
* @throws Exception
*/
public URI runMigration() throws Exception {
// an object used for documenting the results of a service action
// document the service type and start-time
WorkflowResultItem wfResultItem;
if (endOfRoundtripp) {
wfResultItem =
new WorkflowResultItem(
pedigreeDigoRef,
WorkflowResultItem.SERVICE_ACTION_FINAL_MIGRATION,
System.currentTimeMillis(),
wfi.getWorkflowReportingLogger());
} else {
wfResultItem =
new WorkflowResultItem(
pedigreeDigoRef,
WorkflowResultItem.SERVICE_ACTION_MIGRATION,
System.currentTimeMillis(),
wfi.getWorkflowReportingLogger());
}
wfi.addWFResultItem(wfResultItem);
try {
// get all parameters that were added in the configuration file
List<Parameter> parameterList;
if (wfi.getServiceCallConfigs(migrationService) != null) {
parameterList = wfi.getServiceCallConfigs(migrationService).getAllPropertiesAsParameters();
} else {
parameterList = new ArrayList<Parameter>();
}
wfResultItem.setServiceParameters(parameterList);
// get from config: migrate_to_fmt for this service
URI migrateToURI, migrateFromURI;
if (this.outputFormat != null) {
// e.g. when using a identification prior to chose the output format
migrateToURI = this.outputFormat;
} else {
// get the ones from the ServiceCallConfigs
migrateToURI =
wfi.getServiceCallConfigs(migrationService)
.getPropertyAsURI(WorkflowTemplate.SER_PARAM_MIGRATE_TO);
}
wfResultItem.addLogInfo("set migrate to: " + migrateToURI);
if (this.inputFormat != null) {
// e.g. when using a identification prior to chose the input format
migrateFromURI = this.inputFormat;
} else {
// get the ones from the ServiceCallConfigs
migrateFromURI =
wfi.getServiceCallConfigs(migrationService)
.getPropertyAsURI(WorkflowTemplate.SER_PARAM_MIGRATE_FROM);
}
wfResultItem.addLogInfo("set migrate from: " + migrateFromURI);
if ((migrateToURI == null) && (migrateFromURI == null)) {
String err = "No parameter for: 'migrate_to/from_filetype' specified";
wfResultItem.addLogInfo(err);
throw new Exception(err);
}
// document
wfResultItem.setInputDigitalObjectRef(digOToMigrateRef);
wfResultItem.setServiceParameters(parameterList);
wfResultItem.setStartTime(System.currentTimeMillis());
// document the endpoint if available - retrieve from
// WorkflowContext
String endpoint =
wfi.getWorkflowContext()
.getContextObject(
migrationService,
WorkflowContext.Property_ServiceEndpoint,
java.lang.String.class);
if (endpoint != null) {
wfResultItem.setServiceEndpoint(new URL(endpoint));
}
ServiceDescription serDescr = migrationService.describe();
wfResultItem.setServiceDescription(serDescr);
// retrieve the actual digital object
DigitalObject digoToMigrate = dataRegistry.retrieve(digOToMigrateRef);
// now call the migration
MigrateResult migrateResult =
migrationService.migrate(digoToMigrate, migrateFromURI, migrateToURI, parameterList);
// document
wfResultItem.setEndTime(System.currentTimeMillis());
ServiceReport report = migrateResult.getReport();
// report service status and type
wfResultItem.setServiceReport(report);
if (report.getType() == Type.ERROR) {
String s = "Service execution failed: " + report.getMessage();
wfResultItem.addLogInfo(s);
throw new Exception(s);
}
DigitalObject migOutput = migrateResult.getDigitalObject();
// add Migration Event to DigitalObject
Event migrEvent =
buildMigrationOutputEvent(
digoToMigrate,
parameterList,
wfResultItem.getStartTime(),
wfResultItem.getDuration(),
serDescr,
endpoint);
List<Event> lEvents = migOutput.getEvents();
lEvents.add(migrEvent);
// create an updated DigitalObject containing the Migration-Event
// note, as the FileSystemDigoManager requires a title != null, we'll use a random one here
String title = (migOutput.getTitle() == null) ? UUID.randomUUID() + "" : migOutput.getTitle();
URI suggStorageURI =
helperCreateDOMURIWithFileExtension(
wfi.getWorklowInstanceID(), digOToMigrateRef, dataRepositoryID, migrateToURI);
DigitalObject digoUpdated =
new DigitalObject.Builder(migOutput.getContent())
.title(title)
.permanentUri(migOutput.getPermanentUri())
.manifestationOf(migOutput.getManifestationOf())
.format(migOutput.getFormat())
.metadata((Metadata[]) migOutput.getMetadata().toArray(new Metadata[0]))
.events((Event[]) lEvents.toArray(new Event[0]))
.build();
// decide in which repository to store the received DigitalObject
URI digoRef;
if (this.dataRepositoryID != null) {
digoRef = wfi.storeDigitalObjectInRepository(suggStorageURI, digoUpdated, dataRepositoryID);
} else {
// in this case use the default data registry manager location for persisting
digoRef = wfi.storeDigitalObject(digoUpdated);
}
wfResultItem.addLogInfo("storing digital object with permanent URI: " + digoRef);
wfResultItem.setOutputDigitalObjectRef(digoRef);
wfResultItem.addLogInfo("migration completed");
return digoRef;
} catch (Exception e) {
wfResultItem.addLogInfo("migration failed " + e);
throw e;
}
}
