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/*-
* ============LICENSE_START=======================================================
* ONAP-PDP-REST
* ================================================================================
* Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.pdp.rest.api.services;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;
import org.onap.policy.api.ImportParameters;
import org.onap.policy.api.PolicyException;
import org.onap.policy.api.ImportParameters.IMPORT_TYPE;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
import org.onap.policy.utils.PolicyUtils;
import org.onap.policy.xacml.api.XACMLErrorConstants;
import org.springframework.http.HttpStatus;
import org.springframework.web.multipart.MultipartFile;
public class PolicyEngineImportService {
private static Logger LOGGER = FlexLogger.getLogger(PolicyEngineImportService.class.getName());
private String importResponse = null;
private HttpStatus status = HttpStatus.BAD_REQUEST;
private String message = null;
private ImportParameters importParameters = null;
private MultipartFile file = null;
public PolicyEngineImportService(String importParametersJson,
MultipartFile file,
String requestID) {
try {
this.importParameters = PolicyUtils.jsonStringToObject(importParametersJson, ImportParameters.class);
} catch (Exception e) {
importResponse = XACMLErrorConstants.ERROR_DATA_ISSUE + e;
status = HttpStatus.BAD_REQUEST;
// This needs to stop here in case if there a issue here. Avoiding Null pointer exceptions.
return;
}
this.file = file;
if(importParameters.getRequestID()==null){
UUID requestUUID = null;
if (requestID != null && !requestID.isEmpty()) {
try {
requestUUID = UUID.fromString(requestID);
} catch (IllegalArgumentException e) {
requestUUID = UUID.randomUUID();
LOGGER.info("Generated Random UUID: " + requestUUID.toString(), e);
}
}else{
requestUUID = UUID.randomUUID();
LOGGER.info("Generated Random UUID: " + requestUUID.toString());
}
this.importParameters.setRequestID(requestUUID);
}
try{
run();
specialCheck();
}catch(PolicyException e){
importResponse = XACMLErrorConstants.ERROR_DATA_ISSUE + e;
status = HttpStatus.BAD_REQUEST;
}
// Save the imported file
if (!file.isEmpty() && status.equals(HttpStatus.OK) ) {
String filePath = null;
try {
String uploadsDir = System.getProperty("msToscaModel.home");
if(uploadsDir != null) {
if(! new File(uploadsDir).exists()){
new File(uploadsDir).mkdir();
}
String orgName = file.getOriginalFilename();
filePath = uploadsDir + orgName;
File dest = new File(filePath);
file.transferTo(dest);
}
}catch(Exception e){
LOGGER.error("Operation: policyEngineImport : " + e.getMessage() + ". " + filePath + " is not a valid file path.");
}
}
}
private void specialCheck() {
if(importResponse==null || importResponse.contains("PE200")){
status = HttpStatus.INTERNAL_SERVER_ERROR;
}else if(importResponse.contains("BAD REQUEST") || importResponse.contains("PE300")){
status = HttpStatus.BAD_REQUEST;
}
}
private void run() throws PolicyException{
// Check Validation.
if(!getValidation()){
LOGGER.error(message);
throw new PolicyException(message);
}
// Get Result.
try{
status = HttpStatus.OK;
importResponse = processResult();
}catch (Exception e){
LOGGER.error(XACMLErrorConstants.ERROR_DATA_ISSUE + e);
status = HttpStatus.BAD_REQUEST;
throw new PolicyException(e);
}
}
private String processResult() throws PolicyException{
String response = null;
InputStream targetStream = null;
String fileName = file.getOriginalFilename();
switch (importParameters.getServiceType()){
case MICROSERVICE:
case OPTIMIZATION:
if (fileName.endsWith(".yml") || fileName.endsWith(".xmi") || fileName.endsWith(".zip")){
try {
targetStream = new BufferedInputStream(file.getInputStream());
} catch (IOException e) {
response = XACMLErrorConstants.ERROR_DATA_ISSUE + "Error in reading in the file provided";
LOGGER.error(response + e);
return response;
}
}else{
response = XACMLErrorConstants.ERROR_DATA_ISSUE + "Incorrect File Type Given. Please use a file of type .xmi or .zip.";
LOGGER.error(response);
return response;
}
break;
case BRMSPARAM:
if (fileName.endsWith(".drl")){
try {
targetStream = new BufferedInputStream(file.getInputStream());
} catch (IOException e) {
response = XACMLErrorConstants.ERROR_DATA_ISSUE + "Error in reading in the file provided";
LOGGER.error(response + e);
return response;
}
}else{
response = XACMLErrorConstants.ERROR_DATA_ISSUE + "Incorrect File Type Given. Please use a file of type .drl";
LOGGER.error(response);
return response;
}
break;
default:
response = XACMLErrorConstants.ERROR_DATA_ISSUE + "Incorrect ServiceType Given. ";
LOGGER.error(response);
return response;
}
String[] parameters = new String[] {"importService=" + importParameters.getServiceType(), "serviceName="
+ importParameters.getServiceName(), "fileName=" + fileName, "version=" + importParameters.getVersion(), "description=" + importParameters.getDescription()};
PAPServices papServices = new PAPServices();
response = (String) papServices.callPAP(targetStream, parameters, importParameters.getRequestID(), "importMS");
return response;
}
private boolean getValidation() {
if(importParameters==null){
message = XACMLErrorConstants.ERROR_DATA_ISSUE + " no Import Parameters given. ";
return false;
}
if(importParameters.getServiceName()==null || importParameters.getServiceName().trim().isEmpty()){
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "Missing service name value.";
return false;
}
if(importParameters.getServiceType()==null || importParameters.getServiceType().toString().trim().isEmpty()){
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "Missing service Type value.";
return false;
}
if((IMPORT_TYPE.MICROSERVICE.equals(importParameters.getServiceType()) || IMPORT_TYPE.OPTIMIZATION.equals(importParameters.getServiceType()))
&& (importParameters.getVersion()==null || importParameters.getVersion().trim().isEmpty())){
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "Missing version value.";
return false;
}
if(file==null || file.isEmpty()){
message = XACMLErrorConstants.ERROR_DATA_ISSUE + "Missing File.";
return false;
}
return true;
}
public String getResult() {
return importResponse;
}
public HttpStatus getResponseCode() {
return status;
}
}
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