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package eu.dnetlib.msro.workflows.util;
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import java.io.IOException;
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import java.io.StringReader;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.antlr.stringtemplate.StringTemplate;
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import org.apache.commons.io.IOUtils;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.commons.lang3.math.NumberUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.dom4j.Document;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import eu.dnetlib.clients.is.InformationServiceClient;
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import eu.dnetlib.clients.locators.ServiceClientFactory;
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import eu.dnetlib.clients.msro.MsroWorkerClient;
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import eu.dnetlib.clients.msro.Workflow;
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import eu.dnetlib.clients.msro.WorkflowTemplate;
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import eu.dnetlib.exceptions.DnetGenericRuntimeException;
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import eu.dnetlib.miscutils.collections.Pair;
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import eu.dnetlib.msro.exceptions.MSROException;
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import eu.dnetlib.msro.workflows.WorkflowInstance;
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import eu.dnetlib.msro.workflows.WorkflowRef;
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import eu.dnetlib.msro.workflows.util.logs.WorkflowLog;
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import eu.dnetlib.msro.workflows.util.logs.WorkflowLogRepository;
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import eu.dnetlib.services.async.AsyncClientCallback;
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import eu.dnetlib.services.async.AsyncResponse;
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import eu.dnetlib.services.async.AsyncServerCallback;
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@Component
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public class WorkflowDispatcher {
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private static final Log log = LogFactory.getLog(WorkflowDispatcher.class);
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@Autowired
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private InformationServiceClient isClient;
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@Autowired
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private WorkflowLogRepository wfLogRepository;
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@Autowired
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private GraphLoader graphLoader;
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@Autowired
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private ServiceClientFactory clientFactory;
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public static final int DEFAULT_PRIORITY = 50;
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public WorkflowRef startWorkflow(final Workflow wf, final String localBaseUrl, final AsyncServerCallback callback) throws MSROException {
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return startWorkflow(wf.getId(), wf.getParent(), wf.getDsId(), wf.getIface(), localBaseUrl, callback);
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}
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public WorkflowRef startWorkflow(final String profileId,
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final String parent,
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final String dsId,
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final String iface,
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final String localBaseUrl,
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final AsyncServerCallback callback) throws MSROException {
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try {
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final WorkflowInstance wf = newWorkflowInstance(profileId);
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// override
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if (StringUtils.isNotBlank(parent)) {
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wf.setParent(parent);
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}
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if (StringUtils.isNotBlank(dsId)) {
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wf.setDsId(dsId);
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}
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if (StringUtils.isNotBlank(iface)) {
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wf.setDsInterface(iface);
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}
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// end
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return executeWf(wf, localBaseUrl, callback);
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} catch (final Exception e) {
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log.error("Error parsing workflow: " + profileId, e);
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throw new MSROException("Error parsing workflow");
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}
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}
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private WorkflowInstance newWorkflowInstance(final String profileId) throws Exception {
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final String profile = isClient.getProfile(profileId);
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final Document doc = new SAXReader().read(new StringReader(profile));
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final boolean isReady = doc.valueOf("//CONFIGURATION/@status").equals(WorkflowsConstants.WorkflowStatus.EXECUTABLE.toString());
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final boolean isDisabled = doc.valueOf("//CONFIGURATION/@start").equals("disabled");
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if (!isReady || isDisabled) {
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log.warn("Wf not launched, because it is not ready to start or it is disabled");
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throw new MSROException("Workflow is not ready to start");
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}
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final Map<String, String> globalParams = new HashMap<String, String>();
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for (final Object o : doc.selectNodes("//CONFIGURATION/PARAMETERS/PARAM")) {
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final Element p = (Element) o;
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globalParams.put(p.valueOf("@name"), p.getTextTrim());
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}
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final WorkflowInstance wf = new WorkflowInstance();
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wf.setProfileId(profileId);
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wf.setName(doc.valueOf("//WORKFLOW_NAME"));
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wf.setFamily(doc.valueOf("//WORKFLOW_FAMILY"));
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wf.setPriority(NumberUtils.toInt("//WORKFLOW_PRIORITY", DEFAULT_PRIORITY));
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wf.setDsId(doc.valueOf("//DATASOURCE/@id"));
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wf.setDsInterface(doc.valueOf("//DATASOURCE/@interface"));
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wf.setTemplate(false);
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wf.setGraph(graphLoader.loadGraph(doc, globalParams));
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wf.setGlobalParams(globalParams);
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return wf;
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}
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public WorkflowRef startWorkflowTemplate(final WorkflowTemplate wf,
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final String localBaseUrl,
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final AsyncServerCallback callback) throws MSROException {
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return startWorkflowTemplate(wf.getId(), wf.getParent(), wf.getName(), wf.getFamily(), wf.getDsId(), wf.getIface(), wf.getParams(), localBaseUrl,
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callback);
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}
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public WorkflowRef startWorkflowTemplate(final String profileId,
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final String parent,
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final String name,
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final String family,
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final String dsId,
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final String iface,
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final Map<String, String> params,
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final String localBaseUrl,
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final AsyncServerCallback callback) throws MSROException {
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try {
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final String profile = isClient.getProfile(profileId);
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final Document doc = new SAXReader().read(new StringReader(profile));
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final Map<String, String> globalParams = new HashMap<String, String>();
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for (final Object o : doc.selectNodes("//CONFIGURATION/PARAMETERS/PARAM")) {
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final Element p = (Element) o;
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final String pname = p.valueOf("@name");
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if (StringUtils.isNotBlank(params.get(pname))) {
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globalParams.put(pname, params.get(pname));
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} else if (p.selectSingleNode("@default") != null) {
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globalParams.put(pname, p.valueOf("@default"));
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} else if (!StringUtils.equalsIgnoreCase(p.valueOf("@required"), "true")) {
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globalParams.put(pname, "");
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} else {
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throw new MSROException("A required parameter is missing in wf template:" + pname);
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}
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}
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final WorkflowInstance wf = new WorkflowInstance();
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wf.setName(name);
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wf.setFamily(family);
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wf.setDsId(dsId);
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wf.setDsInterface(iface);
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wf.setGraph(graphLoader.loadGraph(doc, globalParams));
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wf.setPriority(DEFAULT_PRIORITY);
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wf.setProfileId(profileId);
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wf.setTemplate(true);
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wf.setGlobalParams(globalParams);
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wf.setParent(parent);
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return executeWf(wf, localBaseUrl, callback);
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} catch (final Exception e) {
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log.error("Error starting workflow template: " + profileId, e);
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throw new MSROException("Error starting workflow template", e);
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}
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}
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private WorkflowRef executeWf(final WorkflowInstance wf, final String localBaseUrl, final AsyncServerCallback callback) {
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// TODO Selezionare il worker in base alle caratterisiche del wf
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final MsroWorkerClient worker = clientFactory.getClient(MsroWorkerClient.class);
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final WorkflowRef ref = worker.execute(wf, localBaseUrl, new AsyncClientCallback() {
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private ObjectMapper mapper = new ObjectMapper();
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@Override
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public void onGoing(final AsyncResponse res) {
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log.info("ONGOING - " + res.getResponseJson());
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if (callback != null) {
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callback.notify(res);
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}
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}
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@Override
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public void onFailed(final AsyncResponse res) {
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log.info("FAILED - " + res.getResponseJson());
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try {
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saveResponse(wf, false, worker.getBaseUrl(), mapper.readValue(res.getResponseJson(), new TypeReference<List<Pair<String, String>>>() {}));
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if (callback != null) {
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callback.notify(res);
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}
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} catch (final IOException e) {
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log.error("Error parsing async response: " + res.getResponseJson(), e);
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throw new DnetGenericRuntimeException("Error final parsing async response: " + res.getResponseJson(), e);
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}
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}
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@Override
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public void onDone(final AsyncResponse res) {
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log.info("DONE - " + res.getResponseJson());
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try {
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saveResponse(wf, true, worker.getBaseUrl(), mapper.readValue(res.getResponseJson(), new TypeReference<List<Pair<String, String>>>() {}));
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if (callback != null) {
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callback.notify(res);
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}
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} catch (final IOException e) {
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log.error("Error parsing async response: " + res.getResponseJson(), e);
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throw new DnetGenericRuntimeException("Error final parsing async response: " + res.getResponseJson(), e);
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}
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}
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});
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225
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log.info("Assigned wf " + wf.getProfileId() + " to worker " + worker.getBaseUrl() + ", procId: " + ref.getProcId());
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return ref;
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}
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230
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private void saveResponse(final WorkflowInstance wf, final boolean success, final String workerUrl, final List<Pair<String, String>> res) {
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231
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updateWfProfile(wf, success, workerUrl, res);
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232
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updateJournal(wf, success, workerUrl, res);
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233
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sendMail(wf, success, workerUrl, res);
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234
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}
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235
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236
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private void sendMail(final WorkflowInstance wf, final boolean success, final String workerUrl, final List<Pair<String, String>> res) {
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237
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log.info("Sending mail to ... TODO");
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238
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239
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/*
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240
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* TODO SEND MAIL emailDispatcher.sendMails(process);
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241
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*/
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242
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}
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243
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244
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private void updateJournal(final WorkflowInstance wf, final boolean success, final String workerUrl, final List<Pair<String, String>> res) {
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245
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246
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final WorkflowLog wfLog = new WorkflowLog();
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wfLog.setName(wf.getName());
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wfLog.setFamily(wf.getFamily());
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249
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wfLog.setPriority(wf.getPriority());
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250
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wfLog.setTemplate(wf.isTemplate());
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251
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wfLog.setProfileId(wf.getProfileId());
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252
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wfLog.setParent(wf.getParent());
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253
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wfLog.setDatasourceId(wf.getDsId());
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254
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wfLog.setDatasourceApi(wf.getDsInterface());
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255
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wfLog.setSuccess(success);
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256
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wfLog.setWorkerUrl(workerUrl);
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257
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258
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for (final Pair<String, String> p : res) {
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259
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260
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// TODO: molti dei parametri seguenti sono assenti: controllare la risposta
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261
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log.info("*********** " + p.getKey() + "->" + p.getValue());
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262
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263
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if (p.getKey().equals(WorkflowsConstants.LOG_WF_PROCESS_ID)) {
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264
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wfLog.setProcId(p.getValue());
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265
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} else if (p.getKey().equals(WorkflowsConstants.LOG_DATASOURCE_NAME)) {
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266
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wfLog.setDatasourceName(p.getValue());
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267
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} else if (p.getKey().equals(WorkflowsConstants.LOG_WF_PROCESS_START_DATE)) {
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268
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wfLog.setStartDate(NumberUtils.toLong(p.getValue(), 0));
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269
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} else if (p.getKey().equals(WorkflowsConstants.LOG_WF_PROCESS_END_DATE)) {
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270
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wfLog.setEndDate(NumberUtils.toLong(p.getValue(), 0));
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271
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} else if (p.getKey().equals(WorkflowsConstants.LOG_SYSTEM_ERROR) && !success) {
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272
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wfLog.setError(p.getValue());
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273
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} else if (p.getKey().equals(WorkflowsConstants.LOG_SYSTEM_ERROR_STACKTRACE) && !success) {
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274
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wfLog.setStacktrace(p.getValue());
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275
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} else {
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276
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wfLog.getOutputParams().put(p.getKey(), p.getValue());
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277
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}
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278
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279
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}
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280
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281
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log.info("Adding " + wfLog + " to wfjournal");
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282
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283
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wfLogRepository.save(wfLog);
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284
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285
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}
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286
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287
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private void updateWfProfile(final WorkflowInstance wf, final boolean success, final String workerUrl, final List<Pair<String, String>> res) {
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288
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if (!wf.isTemplate() && StringUtils.isNotBlank(wf.getProfileId())) {
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289
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try {
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290
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final String template = IOUtils.toString(getClass().getResourceAsStream("/templates/workflow_status.xml.st"));
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291
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final StringTemplate st = new StringTemplate(template);
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292
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293
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for (final Pair<String, String> p : res) {
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294
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if (p.getKey().equals(WorkflowsConstants.LOG_WF_PROCESS_ID)) {
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295
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st.setAttribute("procId", p.getValue());
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296
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} else if (p.getKey().equals(WorkflowsConstants.LOG_WF_PROCESS_END_DATE)) {
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297
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st.setAttribute("date", p.getValue());
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298
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} else if (p.getKey().equals(WorkflowsConstants.LOG_SYSTEM_ERROR) && !success) {
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299
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st.setAttribute("error", p.getValue());
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300
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}
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301
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}
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302
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303
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st.setAttribute("params", res);
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304
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305
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log.info("Updating wf profile " + wf.getProfileId());
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306
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307
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isClient.updateProfileNode(wf.getProfileId(), "//STATUS", st.toString());
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308
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309
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} catch (final Exception e) {
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310
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log.error("Error saving wf response", e);
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311
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throw new DnetGenericRuntimeException("Error saving wf response", e);
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312
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}
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313
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}
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314
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315
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}
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316
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317
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}
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