package eu.planets_project.ifr.core.wee.impl.templates;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import eu.planets_project.ifr.core.wee.api.workflow.WorkflowResult;
import eu.planets_project.ifr.core.wee.api.workflow.WorkflowResultItem;
import eu.planets_project.ifr.core.wee.api.workflow.WorkflowTemplate;
import eu.planets_project.ifr.core.wee.api.workflow.WorkflowTemplateHelper;
import eu.planets_project.ifr.core.wee.api.workflow.jobwrappers.LogReferenceCreatorWrapper;
import eu.planets_project.ifr.core.wee.api.workflow.jobwrappers.MigrationWFWrapper;
import eu.planets_project.services.compare.Compare;
import eu.planets_project.services.compare.CompareResult;
import eu.planets_project.services.datatypes.Agent;
import eu.planets_project.services.datatypes.Checksum;
import eu.planets_project.services.datatypes.Content;
import eu.planets_project.services.datatypes.DigitalObject;
import eu.planets_project.services.datatypes.DigitalObjectContent;
import eu.planets_project.services.datatypes.Event;
import eu.planets_project.services.datatypes.Metadata;
import eu.planets_project.services.datatypes.Parameter;
import eu.planets_project.services.datatypes.Property;
import eu.planets_project.services.datatypes.ServiceReport;
import eu.planets_project.services.datatypes.ServiceReport.Type;
import eu.planets_project.services.identify.Identify;
import eu.planets_project.services.identify.IdentifyResult;
import eu.planets_project.services.migrate.Migrate;
import eu.planets_project.services.migrate.MigrateResult;
/**
* @author <a href="mailto:andrew.lindley@ait.ac.at">Andrew Lindley</a>
* @since 02.12.2009
*/
public class TestbedMigrationMigrationExperimentTemplate_v1_26012010 extends
WorkflowTemplateHelper implements WorkflowTemplate {
/**
* The migration service to execute upon all inputs
*/
private Migrate migrate1;
private Migrate migrate2;
private DigitalObject processingDigo;
/*
* (non-Javadoc)
*
* @see eu.planets_project.ifr.core.wee.api.workflow.WorkflowTemplate#describe()
*/
public String describe() {
return "This template performs A-B and B-C migration action";
}
/*
* (non-Javadoc)
*
* @see eu.planets_project.ifr.core.wee.api.workflow.WorkflowTemplate#execute()
*/
@SuppressWarnings("finally")
public WorkflowResult execute() {
int count = 0;
try {
// get the digital objects and iterate one by one
for (DigitalObject dgoA : this.getData()) {
// 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());
// start executing on digital ObjectA
this.processingDigo = dgoA;
try {
// Migrate Object round-trip
wfResultItem.addLogInfo("starting migration A-B");
URI dgoB = runMigration(migrate1, dgoA.getPermanentUri(), false);
wfResultItem.addLogInfo("completed migration A-B");
wfResultItem.addLogInfo("starting migration B-C");
URI dgoC = runMigration(migrate2, dgoB, true);
wfResultItem.addLogInfo("completed migration B-C");
//TODO: use the identification service for data enrichment (e.g. mime type of output object)
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 #"
+ count + " with permanent uri: " + processingDigo
+ "";
wfResultItem.addLogInfo(err + " " + e);
wfResultItem.setEndTime(System.currentTimeMillis());
}
count++;
}
this.getWFResult().setEndTime(System.currentTimeMillis());
LogReferenceCreatorWrapper.createLogReferences(this);
return this.getWFResult();
} catch (Exception e) {
this.getWFResult().setEndTime(System.currentTimeMillis());
LogReferenceCreatorWrapper.createLogReferences(this);
return this.getWFResult();
}
}
/**
* Runs the migration service on a given digital object reference. It uses the
* MigrationWFWrapper to call the service, create workflowResult logs,
* events and to persist the object within the specified data repository
*/
private URI runMigration(Migrate migrationService,
URI digORef, boolean endOfRoundtripp) throws Exception {
MigrationWFWrapper migrWrapper = new MigrationWFWrapper(this,
this.processingDigo.getPermanentUri(),
migrationService,
digORef,
new URI("planets://localhost:8080/dr/experiment-files"),
endOfRoundtripp);
return migrWrapper.runMigration();
}
/**
* Runs the identification service on a given digital object and returns an
* Array of identified id's (for Droid e.g. PronomIDs)
*
* @param DigitalObject
* the data
* @return
* @throws Exception
*/
/*
* private List<String> addIdentificationMetadata(DigitalObject digo)
* throws Exception{
*
* //get all parameters that were added in the configuration file List<Parameter>
* parameterList; if(this.getServiceCallConfigs(identify1)!=null){
* parameterList =
* this.getServiceCallConfigs(identify1).getAllPropertiesAsParameters();
* }else{ parameterList = new ArrayList<Parameter>(); }
*
* IdentifyResult results = identify1.identify(digo,parameterList);
* ServiceReport report = results.getReport(); List<URI> types =
* results.getTypes();
*
* if(report.getType() == Type.ERROR){ String s = "Service execution failed: " +
* report.getMessage();
*
* throw new Exception(s); } if(types.size()<1){ String s = "The specified
* file type is currently not supported by this workflow"; throw new
* Exception(s); }
*
* String[] strings = new String[types.size()]; int count=0; for (URI uri :
* types) { strings[count] = uri.toASCIIString(); count++; } return
* Arrays.asList(strings);
*
*
* EINBAUEN
*
* Metadata metadataMimeType = new Metadata(PLANETS_URI, MIME_TYPE2,
* IMAGE_MIME2); Metadata metadataPronomID = new Metadata(PLANETS_URI,
* MIME_TYPE2, IMAGE_MIME2); Metadata[] metaList = new Metadata[2];
* metaList[0] = META1; metaList[1] = META2;
*
* END EINBAUEN }
*/
}