*/
@SuppressWarnings("finally")
public WorkflowResult execute(DigitalObject dgoA) {
// document all general actions for this digital object
WorkflowResultItem wfResultItem = new WorkflowResultItem(
dgoA.getPermanentUri(),
WorkflowResultItem.GENERAL_WORKFLOW_ACTION,
System.currentTimeMillis(),
this.getWorkflowReportingLogger());
this.addWFResultItem(wfResultItem);
wfResultItem.addLogInfo("working on workflow template: " + this.getClass().getName());
wfResultItem.addLogInfo("workflow-instance id: " + this.getWorklowInstanceID());
// start executing on digital ObjectA
this.processingDigo = dgoA;
try {
// Characterisation service
wfResultItem.addLogInfo("Start characterization. dgoA: " + dgoA);
List<Property> properties = runCharacterization(dgoA);
wfResultItem.addLogInfo("Completed characterization.");
Event eCharacterisation = buildEvent(properties);
dgoA = addEvent(dgoA, eCharacterisation, null);
wfResultItem.addLogInfo("Characterisatin properties added to the digital object.");
// Identification service for data enrichment (e.g. mime type of output object)
String[] types = runIdentification(dgoA);
wfResultItem.addLogInfo("Completed identification. result" + Arrays.asList(types).toString());
for (WorkflowResultItem wri : getWFResult().getWorkflowResultItems()) {
wfResultItem.addLogInfo("for Identification parameter: " + Arrays.asList(wri.getServiceParameters()).toString());
wfResultItem.addLogInfo("for endpoint: " + wri.getServiceEndpoint());
}
String initialFileName = dgoA.getPermanentUri().toString().substring(
dgoA.getPermanentUri().toString().lastIndexOf(URI_SEPARATOR) + 1 );
wfResultItem.addLogInfo(new Message("Characterisation", new Parameter("File", initialFileName), new Parameter(
"Result", "Properties")));
wfResultItem.addLogInfo(new Message("Identification", new Parameter("File", initialFileName), new Parameter(
"Result", Arrays.asList(types).toString())));
// Extract metadata - will otherwise get lost between steps!
String metadata = "";
List<Metadata> mList = dgoA.getMetadata();
if ((mList != null) && (mList.size() > 0)) {
metadata = mList.get(0).getContent();
}
if (metadata == null) {
wfResultItem.addLogInfo("No metadata contained in DigitalObject!");
} else {
wfResultItem.addLogInfo("Extracted metadata: " + metadata);
}
// Migration service
wfResultItem.addLogInfo("STEP 3: Starting migration");
URI dgoBRef = runMigration(migrate, dgoA.getPermanentUri(), true);
wfResultItem.addLogInfo("Completed migration. URI: " + dgoBRef);
String migrationEndpoint = "";
for (WorkflowResultItem wri : getWFResult().getWorkflowResultItems()) {
wfResultItem.addLogInfo("for Migration parameter: " + Arrays.asList(wri.getServiceParameters()).toString());
wfResultItem.addLogInfo("for endpoint: " + wri.getServiceEndpoint());
if (wri.getServiceParameters().size() > 0
&& Arrays.asList(wri.getServiceParameters()).toString().contains("migration")) {
wfResultItem.addLogInfo(new Message("Migration", new Parameter("Input", Arrays.asList(types).toString())
, new Parameter("Result", Arrays.asList(wri.getServiceParameters()).toString())));
migrationEndpoint = wri.getServiceEndpoint();
}
}
// Evaluate migrated file data
String migratedFileName = "";
String migratedFileSize = "";
if (dgoBRef != null) {
try {
DataRegistry dataRegistry = DataRegistryFactory.getDataRegistry();
URI baseUri = new PDURI(dgoBRef.normalize()).formDataRegistryRootURI();
wfResultItem.addLogInfo("base URI " + baseUri);
DigitalObject obj = dataRegistry.getDigitalObjectManager(baseUri).retrieve(dgoBRef);
wfResultItem.addLogInfo("obj: " + obj.toString());
InputStream contentStream = obj.getContent().getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(contentStream));
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = br.readLine()) != null) {
sb.append(line + "\n");
}
br.close();
migratedFileName = dgoA.getPermanentUri().toString().substring(
dgoA.getPermanentUri().toString().lastIndexOf(URI_SEPARATOR) + 1 );
migratedFileSize = Integer.toString(sb.toString().length());
} catch (Exception e) {
wfResultItem.addLogInfo("migration error: " + e.getMessage());
}
}
// Insert in JCR repository
wfResultItem.addLogInfo("STEP 4: Insert in JCR repository. initial digital object: " + dgoA.toString());
// Manage the Digital Object Data Registry:
wfResultItem.addLogInfo("Initialize JCR repository instance.");
JcrDigitalObjectManagerImpl dodm =
(JcrDigitalObjectManagerImpl) JcrDigitalObjectManagerImpl.getInstance();
DigitalObject dgoB = dodm.store(PERMANENT_URI_PATH, dgoA, true);
wfResultItem.addLogInfo("Completed storing in JCR repository: " + dgoB.toString());
wfResultItem.addLogInfo(new Message("JCRinsert", new Parameter("Digital Object", dgoB.getTitle()), new Parameter(
"Result", dgoB.getPermanentUri().toString())));
// Enrich digital object with format information from identification service
if (types != null) {
wfResultItem.addLogInfo("Identified formats count: " + types.length);
for (int i=0; i<types.length; i++) {
wfResultItem.addLogInfo("type[" + i + "]: " + types[i]);
}
if (types[0] != null) {
List<Property> pList = new ArrayList<Property>();
Property pIdentificationContent = new Property.Builder(URI.create("Identify"))
.name("content by reference")
.value(types[0].toString())
.description("This is a format for initial document identified by identification service")
.unit("URI")
.type("digital object format")
.build();
pList.add(pIdentificationContent);
Event eIdentifyFormat = new Event(
IDENTIFICATION_EVENT, System.currentTimeMillis() + "", new Double(DURATION),
new Agent("http://testbed-dev.planets-project.ait.ac.at:80/pserv-pc-droid/Droid?wsdl"
, identify.NAME, identify.QNAME.toString()),
pList);
dgoB = addEvent(dgoB, eIdentifyFormat, URI.create(types[0]));
List<Property> pMigrationList = new ArrayList<Property>();
Property pMigrationContent = new Property.Builder(URI.create("Migrate"))
.name("content by reference")
.value(types[0].toString())
.description("This is a migration event")
.unit("URI")
.type("digital object format")
.build();
pMigrationList.add(pMigrationContent);
Event eMigration = new Event(
MIGRATION_EVENT, System.currentTimeMillis() + "", new Double(DURATION),
new Agent(migrationEndpoint, migrate.NAME, migrate.QNAME.toString()),
pMigrationList);
dgoB = addEvent(dgoB, eMigration, null);
// add create SIP event
List<Property> pSipList = new ArrayList<Property>();
Property pSipContent = new Property.Builder(URI.create("CreateSIP"))
.name("SIP message")
.value(types[0].toString())
.description("This is a SIP message creation")
.unit("file")
.type("ZIP format")
.build();
pSipList.add(pSipContent);
Event eSip = new Event(
SIP_CREATION_EVENT, System.currentTimeMillis() + "", new Double(DURATION),
new Agent("ZIP file", "The SIP message creation", "ZIP"),
pSipList);
dgoB = addEvent(dgoB, eSip, null);
}
}
// Update digital object in JCR repository
wfResultItem.addLogInfo("STEP 5: Update digital object in JCR repository. initial digital object: " +
dgoB.toString());
dgoB = dodm.updateDigitalObject(dgoB, false);
wfResultItem.addLogInfo("Completed update in JCR repository. result digital object: " + dgoB.toString());
// Create SIP message (ZIP archive) and send it back to the initial repository
wfResultItem.addLogInfo(
"STEP 6: Send enriched digital object back to the initial repository as SIP. Create ZIP archive.");
List<String> filenames = new ArrayList<String>();
String parentDir = "OriginalEpublication";
String strHeaderDirectory = "";
String strContentDirectory = parentDir + "/content";
createDirectories(strHeaderDirectory);
createDirectories(strContentDirectory);
wfResultItem.addLogInfo("before resHeader");
String resHeader = createMetadataXml(strHeaderDirectory, types[0]
, migratedFileName, migratedFileSize);
if (resHeader != null) {
wfResultItem.addLogInfo("resHeader != null: " + resHeader);
filenames.add(resHeader);
}
wfResultItem.addLogInfo("after resHeader");
// add file to SIP content
try {
String resContent = addFileToZipContent(strContentDirectory, dgoB.getContent().getInputStream());
wfResultItem.addLogInfo("add file to SIP content");
if (resContent != null) {
filenames.add(resContent);
}
} catch (Exception e) {
wfResultItem.addLogInfo("read file content error: " + e.getMessage());
}
wfResultItem.addLogInfo("before create SIP archive");
String sipFileName = createZipArchive(filenames);
wfResultItem.addLogInfo("After create SIP archive sipFileName: " + sipFileName);
String zipFileRes = sipFileName.substring(sipFileName.lastIndexOf(URI_SEPARATOR) + 1);
wfResultItem.addLogInfo("After create SIP archive zipFileRes: " + zipFileRes);
wfResultItem.addLogInfo("host auth: " + this.getHostAuthority());
URI zipOutFolder = new URI("http",this.getHostAuthority(),"/wee-gen/id-"+this.getWorkflowReportingLogger().getResultsId(),null,null);
URL zipFileURL = new URL(zipOutFolder+"/" + zipFileRes);
wfResultItem.addLogInfo("zipFileURL: " + zipFileURL);
wfResultItem.addLogInfo(new Message("SIP", new Parameter("Files", Arrays.asList(filenames).toString()), new Parameter(
"Result", zipFileURL.toString())));
List<URL> uris = new ArrayList<URL>();
uris.add(zipFileURL);
wfResultItem.addLogInfo(this.link(uris));
deleteTmpDir(new File(parentDir));
wfResultItem.addLogInfo("Completed sending of enriched digital object to the initial repository.");
wfResultItem.setEndTime(System.currentTimeMillis());
wfResultItem
.addLogInfo("Successfully completed workflow for digitalObject with permanent uri:"
+ processingDigo);
wfResultItem.setEndTime(System.currentTimeMillis());
} catch (Exception e) {
String err = "workflow execution error for digitalObject with permanent uri: " + processingDigo;
wfResultItem.addLogInfo(err + " " + e);
wfResultItem.setEndTime(System.currentTimeMillis());
}
return this.getWFResult();
}