Examples with AbstractProcessInstance io.automatiko.engine.workflow.AbstractProcessInstance used on opensource projects

Example 1 with AbstractProcessInstance

use of io.automatiko.engine.workflow.AbstractProcessInstance in project automatiko-engine by automatiko-io.

the class ProcessInstanceMarshaller method marhsallProcessInstance.

public byte[] marhsallProcessInstance(ProcessInstance<?> processInstance) {
    io.automatiko.engine.api.runtime.process.ProcessInstance pi = ((AbstractProcessInstance<?>) processInstance).internalGetProcessInstance();
    if (pi == null) {
        return null;
    }
    try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
        ProcessMarshallerWriteContext context = new ProcessMarshallerWriteContext(baos, ((io.automatiko.engine.workflow.base.instance.ProcessInstance) pi).getProcessRuntime(), null, env);
        context.setProcessInstanceId(pi.getId());
        context.setState(pi.getState());
        String processType = pi.getProcess().getType();
        context.stream.writeUTF(processType);
        io.automatiko.engine.workflow.marshalling.impl.ProcessInstanceMarshaller marshaller = ProcessMarshallerRegistry.INSTANCE.getMarshaller(processType);
        Object result = marshaller.writeProcessInstance(context, pi);
        if (marshaller instanceof ProtobufRuleFlowProcessInstanceMarshaller && result != null) {
            AutomatikoMessages.ProcessInstance _instance = (AutomatikoMessages.ProcessInstance) result;
            PersisterHelper.writeToStreamWithHeader(context, _instance);
        }
        context.close();
        ((WorkflowProcessInstanceImpl) pi).disconnect();
        return baos.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException("Error while marshalling process instance", e);
    }
}

Example 2 with AbstractProcessInstance

use of io.automatiko.engine.workflow.AbstractProcessInstance in project automatiko-engine by automatiko-io.

the class ParticipantsAccessPolicy method whenInitiatorNotSetOrAsIdentity.

@SuppressWarnings("unchecked")
protected boolean whenInitiatorNotSetOrAsIdentity(IdentityProvider identityProvider, ProcessInstance<T> instance) {
    if (identityProvider.isAdmin()) {
        return true;
    }
    WorkflowProcessInstance pi = (WorkflowProcessInstance) ((AbstractProcessInstance<?>) instance).processInstance();
    if (pi.getInitiator() == null || pi.getInitiator().isEmpty() || pi.getInitiator().equals(identityProvider.getName())) {
        return true;
    }
    // next check if the user/group is assigned to any of the active user tasks that
    // can make it eligible to access the instance
    boolean result = ((WorkflowProcessInstanceImpl) pi).getNodeInstances(true).stream().filter(ni -> ni instanceof HumanTaskNodeInstance).anyMatch(ni -> {
        HumanTaskWorkItem workitem = (HumanTaskWorkItem) ((HumanTaskNodeInstance) ni).getWorkItem();
        return workitem.enforce(SecurityPolicy.of(identityProvider));
    });
    if (!result) {
        result = instance.subprocesses().stream().anyMatch(spi -> whenInitiatorNotSetOrAsIdentity(identityProvider, (ProcessInstance<T>) spi));
    }
    return result;
}

Example 3 with AbstractProcessInstance

use of io.automatiko.engine.workflow.AbstractProcessInstance in project automatiko-engine by automatiko-io.

the class CassandraProcessInstances method disconnect.

protected void disconnect(ProcessInstance instance) {
    ((AbstractProcessInstance<?>) instance).internalRemoveProcessInstance(() -> {
        try {
            Select select = selectFrom(config.keyspace().orElse("automatiko"), tableName).column(CONTENT_FIELD).whereColumn(INSTANCE_ID_FIELD).isEqualTo(literal(instance.id()));
            ResultSet rs = cqlSession.execute(select.build());
            Row row = rs.one();
            if (row != null) {
                byte[] reloaded = codec.decode(row.getByteBuffer(1).array());
                return marshaller.unmarshallWorkflowProcessInstance(reloaded, process);
            } else {
                return null;
            }
        } catch (RuntimeException e) {
            LOGGER.error("Unexpected exception thrown when reloading process instance {}", instance.id(), e);
            return null;
        }
    });
}

Example 4 with AbstractProcessInstance

use of io.automatiko.engine.workflow.AbstractProcessInstance in project automatiko-engine by automatiko-io.

the class $Type$Resource method create_$name$.

@APIResponses(value = { @APIResponse(responseCode = "400", description = "In case request given does not meet expectations", content = @Content(mediaType = "application/json")), @APIResponse(responseCode = "500", description = "In case of processing errors", content = @Content(mediaType = "application/json")), @APIResponse(responseCode = "409", description = "In case an instance already exists with given business key", content = @Content(mediaType = "application/json")), @APIResponse(responseCode = "403", description = "In case an instance cannot be created due to access policy by the caller", content = @Content(mediaType = "application/json")), @APIResponse(responseCode = "200", description = "Successfully created instance", content = @Content(mediaType = "application/json", schema = @Schema(implementation = $Type$Output.class))), @APIResponse(responseCode = "202", description = "Successfully accepted request to create instance (applies only to async execution mode)", content = @Content(mediaType = "application/json", schema = @Schema(implementation = $Type$Output.class))) })
@Operation(summary = "Creates new instance of $name$")
@POST()
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public Response create_$name$(@Context HttpHeaders httpHeaders, @QueryParam("businessKey") @Parameter(description = "Alternative id to be assigned to the instance", required = false) String businessKey, @Parameter(description = "User identifier as alternative autroization info", required = false, hidden = true) @QueryParam("user") final String user, @Parameter(description = "Groups as alternative autroization info", required = false, hidden = true) @QueryParam("group") final List<String> groups, @Parameter(description = "Indicates if instance metadata should be included", required = false) @QueryParam("metadata") @DefaultValue("false") final boolean metadata, @Parameter(description = "The input model for $name$ instance") $Type$Input resource) {
    if (resource == null) {
        resource = new $Type$Input();
    }
    final $Type$Input value = resource;
    String execMode = httpHeaders.getHeaderString("X-ATK-Mode");
    if ("async".equalsIgnoreCase(execMode)) {
        String callbackUrl = httpHeaders.getHeaderString("X-ATK-Callback");
        String startFromNode = httpHeaders.getHeaderString("X-ATK-StartFromNode");
        ProcessInstance<$Type$> pi = process.createInstance(businessKey, mapInput(value, new $Type$()));
        ((AbstractProcessInstance<$Type$>) pi).unlock(true);
        $Type$Output output = mapOutput(new $Type$Output(), pi.variables(), businessKey, pi.metadata());
        Map<String, String> headers = httpHeaders.getRequestHeaders().entrySet().stream().collect(Collectors.toMap(Entry::getKey, e -> e.getValue().get(0)));
        IdentityProvider identity = identitySupplier.buildIdentityProvider(user, groups);
        IdentityProvider.set(null);
        CompletableFuture.runAsync(() -> {
            IdentityProvider.set(identity);
            io.automatiko.engine.services.uow.UnitOfWorkExecutor.executeInUnitOfWork(application.unitOfWorkManager(), () -> {
                if (startFromNode != null) {
                    pi.startFrom(startFromNode);
                } else {
                    pi.start();
                }
                tracing(pi);
                $Type$Output result = getModel(pi, metadata);
                io.automatiko.engine.workflow.http.HttpCallbacks.get().post(callbackUrl, result, httpAuth.produce(headers), pi.status());
                return null;
            });
        });
        ResponseBuilder builder = Response.accepted().entity(output);
        return builder.build();
    } else {
        identitySupplier.buildIdentityProvider(user, groups);
        return io.automatiko.engine.services.uow.UnitOfWorkExecutor.executeInUnitOfWork(application.unitOfWorkManager(), () -> {
            ProcessInstance<$Type$> pi = process.createInstance(businessKey, mapInput(value, new $Type$()));
            String startFromNode = httpHeaders.getHeaderString("X-ATK-StartFromNode");
            if (startFromNode != null) {
                pi.startFrom(startFromNode);
            } else {
                pi.start();
            }
            tracing(pi);
            ResponseBuilder builder = Response.ok().entity(getModel(pi, metadata));
            return builder.build();
        });
    }
}

Example 5 with AbstractProcessInstance

use of io.automatiko.engine.workflow.AbstractProcessInstance in project automatiko-engine by automatiko-io.

the class WorkflowFunction method callTemplate.

public void callTemplate($Type$ resource) {
    AtomicBoolean hasData = new AtomicBoolean(true);
    if (resource == null) {
        resource = new $Type$();
        hasData.set(false);
    }
    String typePrefix = "$TypePrefix$";
    final $Type$ value = resource;
    identitySupplier.buildIdentityProvider(null, Collections.emptyList());
    FunctionContext ctx = io.automatiko.engine.services.uow.UnitOfWorkExecutor.executeInUnitOfWork(application.unitOfWorkManager(), () -> {
        String startFromNode = "$StartFromNode$";
        ProcessInstance<$Type$> pi = value.getId() == null ? null : process.instances().findById(value.getId()).orElse(null);
        if (pi != null) {
            if (hasData.get()) {
                pi.updateVariables(value);
            }
            pi.triggerNode(startFromNode);
        } else {
            pi = process.createInstance(value.getId(), value);
            pi.startFrom(startFromNode);
        }
        String pid = (String) ((WorkflowProcessInstanceImpl) ((AbstractProcessInstance<$Type$>) pi).processInstance()).getMetaData().remove("ATK_FUNC_FLOW_ID");
        if (pid == null) {
            pid = id(pi);
        }
        ((WorkflowProcessInstanceImpl) ((AbstractProcessInstance<$Type$>) pi).processInstance()).getMetaData().remove("ATK_FUNC_FLOW_COUNTER");
        return new FunctionContext(pid, (List<String>) ((WorkflowProcessInstanceImpl) ((AbstractProcessInstance<$Type$>) pi).processInstance()).getMetaData().remove("ATK_FUNC_FLOW_NEXT"), getModel(pi));
    });
    if (ctx.nextNodes != null && eventSource != null) {
        for (String nextNode : ctx.nextNodes) {
            LOGGER.debug("Next function to trigger {}", sanitizeIdentifier(nextNode));
            eventSource.produce(sanitizeIdentifier(nextNode), typePrefix + sanitizeIdentifier("$ThisNode$".toLowerCase()) + ctx.id, ctx.model);
        }
    }
}