Fix template generation for R2
[vfc/nfvo/driver/vnfm/svnfm.git] / nokiav2 / driver / src / main / java / org / onap / vfc / nfvo / driver / vnfm / svnfm / nokia / restapi / ConverterApi.java
1 /*
2  * Copyright 2016-2017, Nokia Corporation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.restapi;
17
18 import com.google.common.base.Charsets;
19 import com.google.common.io.ByteStreams;
20 import java.io.ByteArrayInputStream;
21 import java.io.IOException;
22 import javax.servlet.http.HttpServletRequest;
23 import javax.servlet.http.HttpServletResponse;
24 import javax.servlet.http.Part;
25 import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer.OnapVnfPackageBuilder;
26 import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer.SupportedOnapPackageVersions;
27 import org.slf4j.Logger;
28 import org.springframework.stereotype.Controller;
29 import org.springframework.web.bind.annotation.RequestMapping;
30 import org.springframework.web.bind.annotation.ResponseBody;
31
32 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.buildFatalFailure;
33 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.SystemFunctions.systemFunctions;
34 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.Constants.BASE_URL;
35 import static org.slf4j.LoggerFactory.getLogger;
36 import static org.springframework.http.HttpHeaders.*;
37 import static org.springframework.http.HttpStatus.OK;
38 import static org.springframework.http.MediaType.APPLICATION_OCTET_STREAM;
39 import static org.springframework.http.MediaType.TEXT_HTML_VALUE;
40 import static org.springframework.web.bind.annotation.RequestMethod.GET;
41 import static org.springframework.web.bind.annotation.RequestMethod.POST;
42
43 /**
44  * Responsible for providing the converter utilities for CBAM package format
45  */
46 @Controller
47 @RequestMapping(value = BASE_URL)
48 public class ConverterApi {
49     private static Logger logger = getLogger(ConverterApi.class);
50     private OnapVnfPackageBuilder vnfPackageConverter = new OnapVnfPackageBuilder();
51
52     /**
53      * Return the converted ONAP package
54      *
55      * @param httpResponse the HTTP response
56      * @return the converted ONAP package
57      */
58     @RequestMapping(value = "/convert", method = POST)
59     @ResponseBody
60     public void convert(HttpServletResponse httpResponse, HttpServletRequest request) throws IOException {
61         logger.info("REST: convert package");
62         SupportedOnapPackageVersions version;
63         try {
64             request.getPart("version");
65             version = SupportedOnapPackageVersions.valueOf(new String(ByteStreams.toByteArray(request.getPart("version").getInputStream()), Charsets.UTF_8));
66         } catch (Exception e) {
67             throw buildFatalFailure(logger, "Unable to determine the desired ONAP package version", e);
68         }
69         byte[] content;
70         try {
71             Part uploadedFile = request.getPart("fileToUpload");
72             content = ByteStreams.toByteArray(uploadedFile.getInputStream());
73         } catch (Exception e) {
74             throw buildFatalFailure(logger, "Unable to extract package from REST parameters", e);
75         }
76         byte[] convertedPackage;
77         try {
78             convertedPackage = vnfPackageConverter.covert(new ByteArrayInputStream(content), version);
79         } catch (Exception e) {
80             throw buildFatalFailure(logger, "Unable to convert VNF package", e);
81         }
82         httpResponse.addHeader(CONTENT_TYPE, APPLICATION_OCTET_STREAM.toString());
83         httpResponse.setStatus(OK.value());
84         httpResponse.addHeader(CONTENT_LENGTH, Integer.toString(convertedPackage.length));
85         httpResponse.addHeader(CONTENT_DISPOSITION, "attachment; filename=\"" + "core.csar" + "\"");
86         httpResponse.getOutputStream().write(convertedPackage);
87         httpResponse.getOutputStream().flush();
88     }
89
90     /**
91      * Return the HTTP page to upload the package
92      * Can be removed after the generated swagger API in ONAP is fixed.
93      *
94      * @param httpResponse the HTTP response
95      */
96     @RequestMapping(value = "/convert", method = GET, produces = TEXT_HTML_VALUE)
97     @ResponseBody
98     public void getUploadPageForConvertingVnfd(HttpServletResponse httpResponse) throws IOException {
99         logger.info("REST: get converter main page");
100         byte[] bytes = systemFunctions().loadFile("upload.html");
101         httpResponse.addHeader(CONTENT_LENGTH, Integer.toString(bytes.length));
102         httpResponse.getOutputStream().write(bytes);
103     }
104 }