Examples with RuleEntity org.apache.nifi.update.attributes.entity.RuleEntity used on opensource projects

Example 1 with RuleEntity

use of org.apache.nifi.update.attributes.entity.RuleEntity in project nifi by apache.

the class RuleResource method getRule.

@GET
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/rules/{id}")
public Response getRule(@PathParam("id") final String ruleId, @QueryParam("processorId") final String processorId, @DefaultValue("false") @QueryParam("verbose") final Boolean verbose) {
    // get the web context
    final NiFiWebConfigurationContext configurationContext = (NiFiWebConfigurationContext) servletContext.getAttribute("nifi-web-configuration-context");
    // build the web context config
    final NiFiWebRequestContext requestContext = getRequestContext(processorId);
    // load the criteria and get the rule
    final Criteria criteria = getCriteria(configurationContext, requestContext);
    final Rule rule = criteria.getRule(ruleId);
    if (rule == null) {
        throw new NotFoundException();
    }
    // convert to a dto
    final RuleDTO ruleDto = DtoFactory.createRuleDTO(rule);
    // prune if appropriate
    if (!verbose) {
        ruleDto.setConditions(null);
        ruleDto.setActions(null);
    }
    // create the response entity
    final RuleEntity responseEntity = new RuleEntity();
    responseEntity.setProcessorId(processorId);
    responseEntity.setRule(ruleDto);
    // generate the response
    final ResponseBuilder response = Response.ok(responseEntity);
    return noCache(response).build();
}

Example 2 with RuleEntity

use of org.apache.nifi.update.attributes.entity.RuleEntity in project nifi by apache.

the class RuleResource method updateRule.

@PUT
@Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/rules/{id}")
public Response updateRule(@Context final UriInfo uriInfo, @PathParam("id") final String ruleId, final RuleEntity requestEntity) {
    // get the web context
    final NiFiWebConfigurationContext nifiWebContext = (NiFiWebConfigurationContext) servletContext.getAttribute("nifi-web-configuration-context");
    // ensure the rule has been specified
    if (requestEntity == null || requestEntity.getRule() == null) {
        throw new WebApplicationException(badRequest("The rule must be specified."));
    }
    final RuleDTO ruleDto = requestEntity.getRule();
    // ensure the id has been specified
    if (ruleDto.getId() == null) {
        throw new WebApplicationException(badRequest("The rule id must be specified."));
    }
    if (!ruleDto.getId().equals(ruleId)) {
        throw new WebApplicationException(badRequest("The rule id in the path does not equal the rule id in the request body."));
    }
    // ensure the rule name was specified
    if (ruleDto.getName() == null || ruleDto.getName().isEmpty()) {
        throw new WebApplicationException(badRequest("The rule name must be specified and cannot be blank."));
    }
    // ensure there are some conditions
    if (ruleDto.getConditions() == null || ruleDto.getConditions().isEmpty()) {
        throw new WebApplicationException(badRequest("The rule conditions must be set."));
    }
    // ensure there are some actions
    if (ruleDto.getActions() == null || ruleDto.getActions().isEmpty()) {
        throw new WebApplicationException(badRequest("The rule actions must be set."));
    }
    // build the web context config
    final NiFiWebConfigurationRequestContext requestContext = getConfigurationRequestContext(requestEntity.getProcessorId(), requestEntity.getRevision(), requestEntity.getClientId());
    // load the criteria
    final UpdateAttributeModelFactory factory = new UpdateAttributeModelFactory();
    final Criteria criteria = getCriteria(nifiWebContext, requestContext);
    // attempt to locate the rule
    Rule rule = criteria.getRule(ruleId);
    // if the rule isn't found add it
    boolean newRule = false;
    if (rule == null) {
        newRule = true;
        rule = new Rule();
        rule.setId(ruleId);
    }
    try {
        // evaluate the conditions and actions before modifying the rule
        final Set<Condition> conditions = factory.createConditions(ruleDto.getConditions());
        final Set<Action> actions = factory.createActions(ruleDto.getActions());
        // update the rule
        rule.setName(ruleDto.getName());
        rule.setConditions(conditions);
        rule.setActions(actions);
    } catch (final IllegalArgumentException iae) {
        throw new WebApplicationException(iae, badRequest(iae.getMessage()));
    }
    // add the new rule if application
    if (newRule) {
        criteria.addRule(rule);
    }
    // save the criteria
    saveCriteria(requestContext, criteria);
    // create the response entity
    final RuleEntity responseEntity = new RuleEntity();
    responseEntity.setClientId(requestEntity.getClientId());
    responseEntity.setRevision(requestEntity.getRevision());
    responseEntity.setProcessorId(requestEntity.getProcessorId());
    responseEntity.setRule(DtoFactory.createRuleDTO(rule));
    // generate the response
    final ResponseBuilder response;
    if (newRule) {
        final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
        response = Response.created(uriBuilder.path(ruleId).build()).entity(responseEntity);
    } else {
        response = Response.ok(responseEntity);
    }
    return noCache(response).build();
}

Example 3 with RuleEntity

use of org.apache.nifi.update.attributes.entity.RuleEntity in project nifi by apache.

the class RuleResource method createRule.

@POST
@Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/rules")
public Response createRule(@Context final UriInfo uriInfo, final RuleEntity requestEntity) {
    // get the web context
    final NiFiWebConfigurationContext configurationContext = (NiFiWebConfigurationContext) servletContext.getAttribute("nifi-web-configuration-context");
    // ensure the rule has been specified
    if (requestEntity == null || requestEntity.getRule() == null) {
        throw new WebApplicationException(badRequest("The rule must be specified."));
    }
    final RuleDTO ruleDto = requestEntity.getRule();
    // ensure the id hasn't been specified
    if (ruleDto.getId() != null) {
        throw new WebApplicationException(badRequest("The rule id cannot be specified."));
    }
    // ensure there are some conditions
    if (ruleDto.getConditions() == null || ruleDto.getConditions().isEmpty()) {
        throw new WebApplicationException(badRequest("The rule conditions must be set."));
    }
    // ensure there are some actions
    if (ruleDto.getActions() == null || ruleDto.getActions().isEmpty()) {
        throw new WebApplicationException(badRequest("The rule actions must be set."));
    }
    // generate a new id
    final String uuid = UUID.randomUUID().toString();
    // build the request context
    final NiFiWebConfigurationRequestContext requestContext = getConfigurationRequestContext(requestEntity.getProcessorId(), requestEntity.getRevision(), requestEntity.getClientId());
    // load the criteria
    final Criteria criteria = getCriteria(configurationContext, requestContext);
    final UpdateAttributeModelFactory factory = new UpdateAttributeModelFactory();
    // create the new rule
    final Rule rule;
    try {
        rule = factory.createRule(ruleDto);
        rule.setId(uuid);
    } catch (final IllegalArgumentException iae) {
        throw new WebApplicationException(iae, badRequest(iae.getMessage()));
    }
    // add the rule
    criteria.addRule(rule);
    // save the criteria
    saveCriteria(requestContext, criteria);
    // create the response entity
    final RuleEntity responseEntity = new RuleEntity();
    responseEntity.setClientId(requestEntity.getClientId());
    responseEntity.setRevision(requestEntity.getRevision());
    responseEntity.setProcessorId(requestEntity.getProcessorId());
    responseEntity.setRule(DtoFactory.createRuleDTO(rule));
    // generate the response
    final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
    final ResponseBuilder response = Response.created(uriBuilder.path(uuid).build()).entity(responseEntity);
    return noCache(response).build();
}