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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2019 Huawei 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.so.bpmn.common.resource;
import com.google.common.reflect.TypeToken;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import org.apache.commons.lang3.StringUtils;
import org.onap.so.bpmn.core.domain.GroupResource;
import org.onap.so.bpmn.core.domain.Resource;
import org.onap.so.bpmn.core.domain.VnfResource;
public class InstanceResourceList {
private InstanceResourceList() {
throw new IllegalStateException("Utility class");
}
// this method returns key from resource input
// e.g. {\"sdwansite_emails\" : \"[sdwansiteresource_list(PK), INDEX, sdwansite_emails]|default\",
// ....}
// it will return sdwansiteresource_list
private static String getPrimaryKey(Resource resource) {
String resourceInput = "";
if (resource instanceof VnfResource) {
resourceInput = ((VnfResource) resource).getResourceInput();
} else if (resource instanceof GroupResource) {
resourceInput = ((GroupResource) resource).getVnfcs().get(0).getResourceInput();
}
Gson gson = new Gson();
Type type = new TypeToken<Map<String, String>>() {}.getType();
Map<String, String> map = gson.fromJson(resourceInput, type);
if (map != null) {
Optional<String> pkOpt = map.values().stream().filter(e -> e.contains("[")).map(e -> e.replace("[", ""))
.map(e -> e.split(",")[0]).findFirst();
return pkOpt.isPresent() ? pkOpt.get() : "";
} else {
return "";
}
}
public static List<Resource> getInstanceResourceList(final VnfResource vnfResource, final String uuiRequest) {
List<Resource> sequencedResourceList = new ArrayList<>();
Gson gson = new Gson();
JsonObject servJsonObject = gson.fromJson(uuiRequest, JsonObject.class);
JsonObject reqInputJsonObj = servJsonObject.getAsJsonObject("service").getAsJsonObject("parameters")
.getAsJsonObject("requestInputs");
String pk = getPrimaryKey(vnfResource);
// if pk is not empty that means it can contain list of VNF
if (!pk.isEmpty()) {
JsonElement vfNode = reqInputJsonObj.get(pk);
if (vfNode.isJsonArray()) {
// multiple instance of VNF
JsonArray vfNodeList = vfNode.getAsJsonArray();
for (JsonElement vf : vfNodeList) {
JsonObject vfObj = vf.getAsJsonObject();
// Add VF first before adding groups
sequencedResourceList.add(vnfResource);
List<Resource> sequencedGroupResourceList = getGroupResourceInstanceList(vnfResource, vfObj);
if (!sequencedGroupResourceList.isEmpty()) {
sequencedResourceList.addAll(sequencedGroupResourceList);
}
}
}
} else {
// if pk is empty that means it has only one VNF Node
// Add VF first before adding groups
sequencedResourceList.add(vnfResource);
// check the groups for this VNF and add into resource list
List<Resource> sequencedGroupResourceList = getGroupResourceInstanceList(vnfResource, reqInputJsonObj);
if (!sequencedGroupResourceList.isEmpty()) {
sequencedResourceList.addAll(sequencedGroupResourceList);
}
}
// In negative case consider only VNF resource only
if (sequencedResourceList.isEmpty()) {
sequencedResourceList.add(vnfResource);
}
// check if the resource contains vf-module
if (isVnfResourceWithVfModule(vnfResource)) {
sequencedResourceList.addAll(vnfResource.getVfModules());
}
return sequencedResourceList;
}
private static boolean isVnfResourceWithVfModule(VnfResource vnfResource) {
return vnfResource != null && vnfResource.getVfModules() != null;
}
private static List<Resource> getGroupResourceInstanceList(VnfResource vnfResource, JsonObject vfObj) {
List<Resource> sequencedResourceList = new ArrayList<>();
if (isVnfGroupOrderFilled(vnfResource)) {
String[] grpSequence = vnfResource.getGroupOrder().split(",");
for (String grpType : grpSequence) {
for (GroupResource gResource : vnfResource.getGroups()) {
if (StringUtils.containsIgnoreCase(gResource.getModelInfo().getModelName(), grpType)) {
// check the number of group instances from UUI to be added
String sk = getPrimaryKey(gResource);
// if sk is empty that means it is not list type
// only one group / vnfc to be considered
if (sk.isEmpty()) {
sequencedResourceList.add(gResource);
} else {
// check the number of list size of VNFC of a group
JsonElement vfcNode = vfObj.get(sk);
if (vfcNode.isJsonArray()) {
JsonArray vfcList = vfcNode.getAsJsonArray();
for (JsonElement vfc : vfcList) {
sequencedResourceList.add(gResource);
}
} else {
// consider only one vnfc/group if not an array
sequencedResourceList.add(gResource);
}
}
}
}
}
}
return sequencedResourceList;
}
private static boolean isVnfGroupOrderFilled(VnfResource vnfResource) {
return vnfResource.getGroupOrder() != null && !StringUtils.isEmpty(vnfResource.getGroupOrder());
}
}
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