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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2020 Huawei Technologies Co., Ltd.
* ================================================================================
* 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.policy.clamp.clds.client;
import static java.lang.Boolean.parseBoolean;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import java.util.Date;
import java.util.Map;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.builder.ExchangeBuilder;
import org.onap.policy.clamp.clds.exception.cds.CdsParametersException;
import org.onap.policy.clamp.clds.model.cds.CdsBpWorkFlowListResponse;
import org.onap.policy.clamp.clds.util.JsonUtils;
import org.onap.policy.clamp.clds.util.LoggingUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* This class implements the communication with CDS for the service inventory.
*/
@Component
public class CdsServices {
@Autowired
CamelContext camelContext;
protected static final EELFLogger logger = EELFManager.getInstance().getLogger(CdsServices.class);
private static final String TYPE = "type";
private static final String PROPERTIES = "properties";
private static final String LIST = "list";
/**
* Constructor.
*/
@Autowired
public CdsServices() {
}
/**
* Query CDS to get blueprint's workflow list.
*
* @param blueprintName CDS blueprint name
* @param blueprintVersion CDS blueprint version
* @return CdsBpWorkFlowListResponse CDS blueprint's workflow list
*/
public CdsBpWorkFlowListResponse getBlueprintWorkflowList(String blueprintName, String blueprintVersion) {
LoggingUtils.setTargetContext("CDS", "getBlueprintWorkflowList");
Exchange myCamelExchange = ExchangeBuilder.anExchange(camelContext)
.withProperty("blueprintName", blueprintName).withProperty("blueprintVersion", blueprintVersion)
.build();
Exchange exchangeResponse = camelContext.createProducerTemplate()
.send("direct:get-blueprint-workflow-list", myCamelExchange);
if (Integer.valueOf(200).equals(exchangeResponse.getIn().getHeader("CamelHttpResponseCode"))) {
String cdsResponse = (String) exchangeResponse.getIn().getBody();
logger.info("getBlueprintWorkflowList, response from CDS:" + cdsResponse);
LoggingUtils.setResponseContext("0", "Get Blueprint workflow list", this.getClass().getName());
Date startTime = new Date();
LoggingUtils.setTimeContext(startTime, new Date());
return JsonUtils.GSON_JPA_MODEL.fromJson(cdsResponse, CdsBpWorkFlowListResponse.class);
} else {
logger.error("CDS getBlueprintWorkflowList FAILED");
return null;
}
}
/**
* Query CDS to get input properties of workflow.
*
* @param blueprintName CDS blueprint name
* @param blueprintVersion CDS blueprint name
* @param workflow CDS blueprint's workflow
* @return input properties in json format
*/
public JsonObject getWorkflowInputProperties(String blueprintName, String blueprintVersion,
String workflow) {
LoggingUtils.setTargetContext("CDS", "getWorkflowInputProperties");
Exchange myCamelExchange = ExchangeBuilder.anExchange(camelContext)
.withBody(getCdsPayloadForWorkFlow(blueprintName, blueprintVersion, workflow))
.build();
Exchange exchangeResponse = camelContext.createProducerTemplate()
.send("direct:get-blueprint-workflow-input-properties", myCamelExchange);
if (Integer.valueOf(200).equals(exchangeResponse.getIn().getHeader("CamelHttpResponseCode"))) {
String cdsResponse = (String) exchangeResponse.getIn().getBody();
logger.info("getWorkflowInputProperties, response from CDS:" + cdsResponse);
LoggingUtils.setResponseContext("0", "Get Blueprint workflow input properties", this.getClass().getName());
Date startTime = new Date();
LoggingUtils.setTimeContext(startTime, new Date());
return parseCdsResponse(cdsResponse);
} else {
logger.error("CDS getWorkflowInputProperties FAILED");
return null;
}
}
protected JsonObject parseCdsResponse(String response) {
JsonObject root = JsonParser.parseString(response).getAsJsonObject();
JsonObject inputs = root.getAsJsonObject("workFlowData").getAsJsonObject("inputs");
JsonObject dataTypes = root.getAsJsonObject("dataTypes");
JsonObject workFlowProperties = new JsonObject();
workFlowProperties.add("inputs", getInputProperties(inputs, dataTypes, new JsonObject()));
return workFlowProperties;
}
private JsonObject getInputProperties(JsonObject inputs, JsonObject dataTypes,
JsonObject inputObject) {
if (inputs == null) {
return inputObject;
}
for (Map.Entry<String, JsonElement> entry : inputs.entrySet()) {
String key = entry.getKey();
JsonObject inputProperty = inputs.getAsJsonObject(key);
String type = inputProperty.get(TYPE).getAsString();
if (isComplexType(type, dataTypes)) {
inputObject.add(key, handleComplexType(type, dataTypes));
} else if (LIST.equalsIgnoreCase(type)) {
handleListType(key, inputProperty, dataTypes, inputObject);
} else if (isInputParam(inputProperty)) {
inputObject.add(key, entry.getValue());
}
}
return inputObject;
}
private void handleListType(String propertyName,
JsonObject inputProperty,
JsonObject dataTypes,
JsonObject inputObject) {
if (inputProperty.get("entry_schema") == null) {
throw new CdsParametersException("Entry schema is null for " + propertyName);
}
String type = inputProperty.get("entry_schema").getAsJsonObject().get(
TYPE).getAsString();
if (dataTypes.get(type) != null) {
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty(TYPE, LIST);
jsonObject.add(PROPERTIES, getPropertiesObject(type, dataTypes));
inputObject.add(propertyName, jsonObject);
} else if (isInputParam(inputProperty)) {
inputObject.add(propertyName, inputProperty);
}
}
private JsonObject handleComplexType(String key, JsonObject dataTypes) {
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty(TYPE, "object");
jsonObject.add(PROPERTIES, getPropertiesObject(key, dataTypes));
return jsonObject;
}
private JsonObject getPropertiesObject(String key, JsonObject dataTypes) {
JsonObject properties = dataTypes.get(key).getAsJsonObject().get(PROPERTIES).getAsJsonObject();
JsonObject object = new JsonObject();
getInputProperties(properties, dataTypes, object);
return object;
}
private boolean isComplexType(String type, JsonObject dataTypes) {
if (dataTypes == null) {
return false;
}
return dataTypes.get(type) != null;
}
private boolean isInputParam(JsonObject inputProperty) {
JsonElement inputParam = inputProperty.get("input-param");
if (inputParam == null) {
return false;
}
return parseBoolean(inputParam.getAsString());
}
/**
* Creates payload to query CDS to get workflow input properties.
*
* @param blueprintName CDS blueprint name
* @param version CDS blueprint version
* @param workflow CDS blueprint workflow
* @return returns payload in json format
*/
public String getCdsPayloadForWorkFlow(String blueprintName, String version, String workflow) {
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("blueprintName", blueprintName);
jsonObject.addProperty("version", version);
jsonObject.addProperty("returnContent", "json");
jsonObject.addProperty("workflowName", workflow);
jsonObject.addProperty("specType", "TOSCA");
return jsonObject.toString();
}
}
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