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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.listener.LCM.impl;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import org.onap.appc.exceptions.APPCException;
import org.onap.appc.listener.EventHandler;
import org.onap.appc.listener.LCM.conv.Converter;
import org.onap.appc.listener.LCM.model.DmaapMessage;
import org.onap.appc.listener.LCM.model.DmaapOutgoingMessage;
import org.onap.appc.listener.LCM.operation.ProviderOperations;
public class WorkerImpl implements Runnable {
private final EELFLogger LOG = EELFManager.getInstance().getLogger(WorkerImpl.class);
// Should have all of the data we need for processing
private DmaapMessage event;
// So we can post messages from inside the worker.
private EventHandler dmaap;
//so we know were to post the messages
private final ProviderOperations providerOperations;
public WorkerImpl(DmaapMessage message, EventHandler dmaap, ProviderOperations providerOperations) {
this.event = message;
this.dmaap = dmaap;
this.providerOperations = providerOperations;
}
@Override
public void run() {
if (checkParametersForNull(event, dmaap, providerOperations)) {
throw new IllegalStateException("Cannot run worker. One of its parameters is null");
}
String requestIdWithSubId = extractRequestIdWithSubId(event.getBody());
LOG.debug(String.format("Started working on %s", requestIdWithSubId));
// Run the dg in a try catch to handle all exceptions and update the message at the end
try {
JsonNode outputJsonNode = doDG(event.getRpcName(), event.getBody());
DmaapOutgoingMessage dmaapOutgoingMessage = Converter
.convertJsonNodeToDmaapOutgoingMessage(event, outputJsonNode);
postMessageToDMaaP(dmaapOutgoingMessage, requestIdWithSubId);
Integer statusCode = extractStatusCode(dmaapOutgoingMessage.getBody());
if (ProviderOperations.isSucceeded(statusCode)) {
LOG.debug(String.format("Event %s finished successfully", requestIdWithSubId));
} else {
LOG.warn(String.format("Event %s failed", requestIdWithSubId));
}
} catch (Exception e) {
// Unknown exception from DG method. Fail and pass the exception along
String msg = "Exception: " + e.getMessage();
LOG.error(String.format("Event %s finished with failure. %s", requestIdWithSubId, msg));
DmaapOutgoingMessage dmaapOutgoingMessage = Converter
.buildDmaapOutgoingMessageWithUnexpectedError(event, e);
postMessageToDMaaP(dmaapOutgoingMessage, requestIdWithSubId);
}
LOG.debug("Done working on " + requestIdWithSubId);
}
private boolean checkParametersForNull(DmaapMessage message, EventHandler dmaap,
ProviderOperations providerOperations) {
return message == null || dmaap == null || providerOperations == null;
}
private Integer extractStatusCode(JsonNode event) {
Integer statusCode = null;
try {
statusCode = Converter.extractStatusCode(event);
} catch (Exception e) {
LOG.error("failed to parse statusCode. Json not in expected format", e);
}
return statusCode;
}
private String extractRequestIdWithSubId(JsonNode event) {
String requestId = "";
try {
requestId = Converter.extractRequestIdWithSubId(event);
} catch (Exception e) {
LOG.error("failed to parse request-id and sub-request-id. Json not in expected format", e);
}
return requestId;
}
private void postMessageToDMaaP(DmaapOutgoingMessage dmaapOutgoingMessage, String requestIdWithSubId) {
String dmaapOutgoingMessageJsonString;
try {
dmaapOutgoingMessageJsonString = Converter.convertDmaapOutgoingMessageToJsonString(dmaapOutgoingMessage);
dmaap.postStatus(dmaapOutgoingMessage.getCambriaPartition(), dmaapOutgoingMessageJsonString);
} catch (JsonProcessingException e) {
LOG.error(
"failed to postMessageToDMaaP requestIdWithSubId: " + requestIdWithSubId + " dmaapOutgoingMessage: "
+ dmaapOutgoingMessage, e);
}
}
private JsonNode doDG(String rpcName, JsonNode msg) throws APPCException {
return providerOperations.topologyDG(rpcName, msg);
}
}
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