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/*
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2018 Nokia. All rights reserved.
* Copyright (C) 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.appc.flow.controller.node;
import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VF_MODULE;
import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VM;
import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VNF;
import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VNFC;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.apache.commons.lang3.StringUtils;
import org.onap.appc.flow.controller.dbervices.FlowControlDBService;
import org.onap.appc.flow.controller.interfaceData.Capabilities;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
public class CapabilitiesDataExtractor {
private static final EELFLogger log = EELFManager.getInstance().getLogger(CapabilitiesDataExtractor.class);
private final FlowControlDBService dbService;
private final ObjectMapper mapper;
public CapabilitiesDataExtractor() {
this(FlowControlDBService.initialise());
}
/**
* Ctor for tests, prefer to use default one
*/
public CapabilitiesDataExtractor(FlowControlDBService dbService) {
this.dbService = dbService;
mapper = new ObjectMapper();
mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
mapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
}
Capabilities getCapabilitiesData(SvcLogicContext ctx) throws SvcLogicException, IOException {
String fn = "FlowExecutorNode.getCapabilitiesData";
String capabilitiesData = dbService.getCapabilitiesData(ctx);
log.info(fn + ":capabilitiesDataInput:" + capabilitiesData);
Capabilities capabilities = new Capabilities();
if (StringUtils.isBlank(capabilitiesData)) {
return capabilities;
}
JsonNode capabilitiesNode = mapper.readTree(capabilitiesData);
JsonNode capNode = capabilitiesNode.get("capabilities");
log.info("capabilitiesNode:" + capabilitiesNode.toString());
capabilities.getVfModule().addAll(extractParameterList(capNode, VF_MODULE));
capabilities.getVnfc().addAll(extractParameterList(capNode, VNFC));
capabilities.getVnf().addAll(extractParameterList(capNode, VNF));
capabilities.getVm().putAll(extractParameterMap(capNode, VM));
log.info("Capabilities Output:" + capabilities.toString());
return capabilities;
}
private List<String> extractParameterList(JsonNode root, String parameter) throws IOException {
JsonNode parameterNode = root.get(parameter);
if (parameterNode == null) {
return new ArrayList<>();
}
return mapper.readValue(parameterNode.toString(), new TypeReference<List<String>>() {
});
}
private HashMap<String, List<String>> extractParameterMap(JsonNode root, String parameter) throws IOException {
JsonNode parameterNode = root.get(parameter);
HashMap<String, List<String>> hm = new HashMap<>();
if (parameterNode == null || !parameterNode.isArray()) {
return hm;
}
for (JsonNode n : parameterNode) {
Iterator<Map.Entry<String, JsonNode>> fldIter = n.fields();
while (fldIter.hasNext()) {
Map.Entry<String, JsonNode> currentEntry = fldIter.next();
if (currentEntry.getValue().isArray()) {
Iterator<JsonNode> nodeIter = currentEntry.getValue().elements();
List<String> listOfT = new ArrayList<>();
while (nodeIter.hasNext()) {
listOfT.add((nodeIter.next().asText()));
}
hm.put(currentEntry.getKey(), listOfT);
}
}
}
return hm;
}
}
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