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/*-
* ============LICENSE_START=======================================================
* Simulator
* ================================================================================
* Copyright (C) 2021 Nokia. 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.integration.simulators.nfsimulator.vesclient.rest;
import java.time.Instant;
import java.util.List;
import java.util.Optional;
import javax.validation.Valid;
import com.google.gson.Gson;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;
import org.onap.integration.simulators.nfsimulator.vesclient.db.Storage;
import org.onap.integration.simulators.nfsimulator.vesclient.rest.model.TemplateRequest;
import org.onap.integration.simulators.nfsimulator.vesclient.template.Template;
import org.onap.integration.simulators.nfsimulator.vesclient.template.search.IllegalJsonValueException;
import org.onap.integration.simulators.nfsimulator.vesclient.rest.model.SearchExp;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.server.ResponseStatusException;
@RestController
@RequestMapping("/template")
@Api(tags = "Template controller", value = "Template controller")
public class TemplateController {
static final String TEMPLATE_NOT_FOUND_MSG = "A template with given name does not exist";
static final String CANNOT_OVERRIDE_TEMPLATE_MSG = "Cannot overwrite existing template. Use override=true to override";
private final Storage<Template> service;
@Autowired
public TemplateController(Storage<Template> service) {
this.service = service;
}
@GetMapping("list")
@ApiOperation(value = "Fetch all templates supported by Ves client")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "It returns list of supported templates.")
})
public ResponseEntity<List<Template>> list() {
return new ResponseEntity<>(service.getAll(), HttpStatus.OK);
}
@GetMapping("get/{templateName}")
@ApiOperation(value = "Fetch details about selected template")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "It returns an information about selected template.")
})
public ResponseEntity<String> get(@PathVariable String templateName) {
Optional<Template> template = service.get(templateName);
return template
.map(this::createTemplateResponse)
.orElse(this.createTemplateNotFoundResponse());
}
private ResponseEntity<String> createTemplateResponse(Template template) {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
return new ResponseEntity<>(new Gson().toJson(template),headers, HttpStatus.OK);
}
private ResponseEntity<String> createTemplateNotFoundResponse() {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.TEXT_PLAIN);
return new ResponseEntity<>(TEMPLATE_NOT_FOUND_MSG, headers, HttpStatus.NOT_FOUND);
}
@PostMapping("upload")
@ApiOperation(value = "Upload a new template")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Template uploaded")
})
public ResponseEntity<String> upload(
@RequestBody @Valid TemplateRequest templateRequest,
@RequestParam(required = false) boolean override) {
String msg = "";
HttpStatus status = HttpStatus.CREATED;
Template template = new Template(templateRequest.getName(), templateRequest.getTemplate(), Instant.now().getNano());
if (!service.tryPersistOrOverwrite(template, override)) {
status = HttpStatus.CONFLICT;
msg = CANNOT_OVERRIDE_TEMPLATE_MSG;
}
return new ResponseEntity<>(msg, status);
}
@PostMapping("search")
@ApiOperation(value = "Fetch templates which fit to query")
@ApiResponses(value = {
@ApiResponse(code = 200, message = "Returns list of templates fitted to query.")
})
public ResponseEntity<List<String>> searchByCriteria(@RequestBody SearchExp queryJson) {
try {
List<String> templateNames = service.getIdsByContentCriteria(queryJson.getSearchExpr());
return new ResponseEntity<>(templateNames, HttpStatus.OK);
} catch (IllegalJsonValueException ex) {
throw new ResponseStatusException(HttpStatus.BAD_REQUEST, String.format("Try again with correct parameters. Cause: %s", ex.getMessage()), ex);
}
}
}
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