2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2019 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
20 package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.utils;
22 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.FORWARD_SLASH;
23 import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.PRELOAD_VNFS_URL;
25 import java.io.IOException;
26 import java.util.Arrays;
27 import java.util.Collections;
28 import java.util.List;
30 import java.util.stream.Collectors;
32 import org.onap.so.bpmn.servicedecomposition.bbobjects.GenericVnf;
33 import org.onap.so.bpmn.servicedecomposition.modelinfo.ModelInfoGenericVnf;
34 import org.onap.so.client.sdnc.SDNCClient;
35 import org.onap.vnfmadapter.v1.model.ExternalVirtualLink;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
38 import org.springframework.beans.factory.annotation.Autowired;
39 import org.springframework.stereotype.Service;
41 import com.fasterxml.jackson.core.JsonParseException;
42 import com.fasterxml.jackson.core.type.TypeReference;
43 import com.fasterxml.jackson.databind.ObjectMapper;
44 import com.jayway.jsonpath.JsonPath;
46 import net.minidev.json.JSONArray;
49 * This class retrieve pre-load data from SDNC using <br/>
50 * <b>GET</b> /config/VNF-API:preload-vnfs/vnf-preload-list/{vnf-name}/{vnf-type}
52 * @author waqas.ikram@est.tech
55 public class InputParametersProviderImpl implements InputParametersProvider {
57 private static final Logger LOGGER = LoggerFactory.getLogger(InputParametersProviderImpl.class);
59 private static final String EXT_VIRTUAL_LINKS = "extVirtualLinks";
60 private static final String ADDITIONAL_PARAMS = "additionalParams";
61 private static final String VNF_PARAMETERS_PATH = "$..vnf-parameters";
63 private final SDNCClient sdncClient;
66 public InputParametersProviderImpl(final SDNCClient sdncClient) {
67 this.sdncClient = sdncClient;
71 public InputParameter getInputParameter(final GenericVnf genericVnf) {
72 final String vnfName = genericVnf.getVnfName();
73 final String vnfType = getVnfType(genericVnf);
74 final String url = getPreloadVnfsUrl(vnfName, vnfType);
77 LOGGER.debug("Will query sdnc for input parameters using url: {}", url);
78 final String jsonResponse = sdncClient.get(url);
80 final JSONArray vnfParametersArray = JsonPath.read(jsonResponse, VNF_PARAMETERS_PATH);
81 if (vnfParametersArray != null) {
82 for (int index = 0; index < vnfParametersArray.size(); index++) {
83 final Object vnfParametersObject = vnfParametersArray.get(index);
84 if (vnfParametersObject instanceof JSONArray) {
85 final JSONArray vnfParameters = (JSONArray) vnfParametersObject;
86 final Map<String, String> vnfParametersMap = getVnfParameterMap(vnfParameters);
87 return new InputParameter(getAdditionalParameters(vnfParametersMap),
88 getExtVirtualLinks(vnfParametersMap));
92 } catch (final Exception exception) {
93 LOGGER.error("Unable to retrieve/parse input parameters using URL: {} ", url, exception);
95 LOGGER.warn("No input parameters found ...");
96 return NullInputParameter.NULL_INSTANCE;
100 private List<ExternalVirtualLink> getExtVirtualLinks(final Map<String, String> vnfParametersMap)
101 throws JsonParseException, IOException {
103 final String extVirtualLinksString = vnfParametersMap.get(EXT_VIRTUAL_LINKS);
105 if (extVirtualLinksString != null && !extVirtualLinksString.isEmpty()) {
106 final ObjectMapper mapper = new ObjectMapper();
107 final TypeReference<List<ExternalVirtualLink>> extVirtualLinksStringTypeRef =
108 new TypeReference<List<ExternalVirtualLink>>() {};
110 return mapper.readValue(extVirtualLinksString, extVirtualLinksStringTypeRef);
112 } catch (final Exception exception) {
113 LOGGER.error("Unable to parse {} ", EXT_VIRTUAL_LINKS, exception);
115 return Collections.emptyList();
118 private Map<String, String> getAdditionalParameters(final Map<String, String> vnfParametersMap)
119 throws JsonParseException, IOException {
121 final String additionalParamsString = vnfParametersMap.get(ADDITIONAL_PARAMS);
122 if (additionalParamsString != null && !additionalParamsString.isEmpty()) {
123 final ObjectMapper mapper = new ObjectMapper();
124 final TypeReference<Map<String, String>> typeRef = new TypeReference<Map<String, String>>() {};
125 return mapper.readValue(additionalParamsString, typeRef);
127 } catch (final Exception exception) {
128 LOGGER.error("Unable to parse {} ", ADDITIONAL_PARAMS, exception);
130 return Collections.emptyMap();
133 private Map<String, String> getVnfParameterMap(final JSONArray array) {
136 final ObjectMapper mapper = new ObjectMapper();
137 final VnfParameter[] readValue = mapper.readValue(array.toJSONString(), VnfParameter[].class);
138 LOGGER.debug("Vnf parameters: {}", Arrays.asList(readValue));
139 return Arrays.asList(readValue).stream()
140 .filter(vnfParam -> vnfParam.getName() != null && vnfParam.getValue() != null)
141 .collect(Collectors.toMap(VnfParameter::getName, VnfParameter::getValue));
143 } catch (final IOException exception) {
144 LOGGER.error("Unable to parse vnf parameters : {}", array, exception);
146 return Collections.emptyMap();
149 private String getPreloadVnfsUrl(final String vnfName, final String vnfType) {
150 return PRELOAD_VNFS_URL + vnfName + FORWARD_SLASH + vnfType;
153 private String getVnfType(final GenericVnf genericVnf) {
154 final ModelInfoGenericVnf modelInfoGenericVnf = genericVnf.getModelInfoGenericVnf();
155 if (modelInfoGenericVnf != null && modelInfoGenericVnf.getModelName() != null) {
156 return modelInfoGenericVnf.getModelName();
158 return genericVnf.getVnfType();