package com.thinkbiganalytics.nifi.rest.model;
/*-
* #%L
* thinkbig-nifi-rest-model
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.thinkbiganalytics.nifi.rest.support.NifiProcessorValidationUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.nifi.web.api.dto.ProcessGroupDTO;
import org.apache.nifi.web.api.dto.ProcessorDTO;
import java.util.ArrayList;
import java.util.List;
/**
* Represents a NiFi process group that has been updated in Kylo and holds any error messages resulting from the NiFi update.
*/
public class NifiProcessGroup {
public static String CONTROLLER_SERVICE_CATEGORY = "Controller Service";
private ProcessGroupDTO processGroupEntity;
private List<ProcessorDTO> activeProcessors;
private ProcessorDTO inputProcessor;
private List<ProcessorDTO> downstreamProcessors;
private boolean success;
private List<NiFiComponentErrors> errors;
private boolean rolledBack = false;
public NifiProcessGroup() {
this(new ProcessGroupDTO());
}
public NifiProcessGroup(ProcessGroupDTO processGroupEntity, ProcessorDTO inputProcessor, List<ProcessorDTO> downstreamProcessors) {
this.processGroupEntity = processGroupEntity;
this.inputProcessor = inputProcessor;
this.downstreamProcessors = downstreamProcessors;
populateErrors();
this.success = !this.hasFatalErrors();
}
public NifiProcessGroup(ProcessGroupDTO processGroupEntity) {
this.processGroupEntity = processGroupEntity;
populateErrors();
this.success = !this.hasFatalErrors();
}
private void populateErrors() {
this.errors = new ArrayList<NiFiComponentErrors>();
if (this.inputProcessor != null && this.processGroupEntity != null) {
NiFiComponentErrors error = NifiProcessorValidationUtil.getProcessorValidationErrors(this.inputProcessor, false);
if (error != null && !error.getValidationErrors().isEmpty()) {
errors.add(error);
}
}
if (this.downstreamProcessors != null && this.processGroupEntity != null) {
List<NiFiComponentErrors> processorErrors = NifiProcessorValidationUtil.getProcessorValidationErrors(this.downstreamProcessors, true);
if (processorErrors != null) {
errors.addAll(processorErrors);
}
}
}
public void addError(String processGroupId, String processorId, NifiError.SEVERITY severity, String error, String errorType) {
final NiFiComponentErrors tmpDto = new NiFiComponentErrors("", processorId, processGroupId);
final List<NiFiComponentErrors> dtos = Lists.newArrayList(Iterables.filter(errors, new Predicate<NiFiComponentErrors>() {
@Override
public boolean apply(NiFiComponentErrors nifiProcessorDTO) {
return nifiProcessorDTO.equals(tmpDto);
}
}));
if (dtos != null && !dtos.isEmpty()) {
dtos.get(0).addError(severity, error, errorType);
} else {
tmpDto.addError(severity, error, errorType);
this.errors.add(tmpDto);
}
}
public void addError(NifiError.SEVERITY severity, String error, String errorType) {
addError(processGroupEntity.getName(), "", severity, error, errorType);
}
public void addError(NifiError error) {
addError(processGroupEntity.getName(), "", error.getSeverity(), error.getMessage(), error.getCategory());
}
public ProcessGroupDTO getProcessGroupEntity() {
return processGroupEntity;
}
public List<NiFiComponentErrors> getErrors() {
if (errors == null) {
errors = new ArrayList<NiFiComponentErrors>();
}
return errors;
}
public boolean hasErrors() {
return this.errors != null && !this.errors.isEmpty();
}
public boolean hasFatalErrors() {
List<NiFiComponentErrors> fatalErrors = new ArrayList<>();
if (errors != null && !errors.isEmpty()) {
for (NiFiComponentErrors processor : errors) {
List<NifiError> errors = processor.getFatalErrors();
if (errors != null && !errors.isEmpty()) {
return true;
}
}
}
return false;
}
public boolean isRolledBack() {
return rolledBack;
}
public void setRolledBack(boolean rolledBack) {
this.rolledBack = rolledBack;
}
public List<NiFiComponentErrors> getControllerServiceErrors() {
return getErrorsForCategory(CONTROLLER_SERVICE_CATEGORY);
}
public List<NiFiComponentErrors> getErrorsForCategory(final String category) {
if (StringUtils.isBlank(category)) {
return null;
}
return Lists.newArrayList(Iterables.filter(getErrors(), new Predicate<NiFiComponentErrors>() {
@Override
public boolean apply(NiFiComponentErrors nifiProcessorDTO) {
NifiError error = Iterables.tryFind(nifiProcessorDTO.getValidationErrors(), new Predicate<NifiError>() {
@Override
public boolean apply(NifiError nifiError) {
return category.equalsIgnoreCase(nifiError.getCategory());
}
}).orNull();
return error != null;
}
}));
}
public List<NifiError> getAllErrors() {
List<NifiError> errors = new ArrayList<>();
for (NiFiComponentErrors item : getErrors()) {
if (item.getValidationErrors() != null && !item.getValidationErrors().isEmpty()) {
errors.addAll(item.getValidationErrors());
}
}
return errors;
}
public boolean isSuccess() {
return success;
}
public void setSuccess(boolean success) {
this.success = success;
}
}