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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017-2018 European Software Marketing 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.aai.modelloader.entity.catalog;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.UUID;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.apache.commons.text.StringEscapeUtils;
import org.onap.aai.cl.api.Logger;
import org.onap.aai.cl.eelf.LoggerFactory;
import org.onap.aai.modelloader.config.ModelLoaderConfig;
import org.onap.aai.modelloader.entity.Artifact;
import org.onap.aai.modelloader.entity.ArtifactHandler;
import org.onap.aai.modelloader.restclient.AaiRestClient;
import org.onap.aai.modelloader.service.ModelLoaderMsgs;
import org.onap.aai.restclient.client.OperationResult;
import org.springframework.web.util.UriUtils;
/**
* VNF Catalog specific handling
*/
public class VnfCatalogArtifactHandler extends ArtifactHandler {
private static Logger logger = LoggerFactory.getInstance().getLogger(VnfCatalogArtifactHandler.class.getName());
public static final String ATTR_UUID = "uuid";
public VnfCatalogArtifactHandler(ModelLoaderConfig config) {
super(config);
}
/*
* (non-Javadoc)
*
* @see org.openecomp.modelloader.entity.ArtifactHandler#pushArtifacts(java.util.List, java.lang.String)
*/
@Override
public boolean pushArtifacts(List<Artifact> artifacts, String distributionId, List<Artifact> completedArtifacts,
AaiRestClient aaiClient) {
for (Artifact artifact : artifacts) {
try {
distributeVnfcData(aaiClient, distributionId, artifact, completedArtifacts);
} catch (VnfImageException e) {
if (e.getResultCode().isPresent()) {
logger.error(ModelLoaderMsgs.DISTRIBUTION_EVENT_ERROR,
"Ingestion failed on vnf-image " + e.getImageId() + " with status "
+ e.getResultCode().orElse(0) + ". Rolling back distribution.");
} else {
logger.error(ModelLoaderMsgs.DISTRIBUTION_EVENT_ERROR,
"Ingestion failed on " + e.getImageId() + ". Rolling back distribution.");
}
return false;
}
}
return true;
}
private void distributeVnfcData(AaiRestClient restClient, String distributionId, Artifact vnfcArtifact,
List<Artifact> completedArtifacts) throws VnfImageException {
List<Map<String, String>> vnfcData = unmarshallVnfcData(vnfcArtifact);
for (Map<String, String> dataItem : vnfcData) {
// If an empty dataItem is supplied, do nothing.
if (dataItem.isEmpty()) {
logger.warn(ModelLoaderMsgs.DISTRIBUTION_EVENT, "Empty image data supplied, skipping ingestion.");
continue;
}
String urlParams;
StringBuilder imageId = new StringBuilder("vnf image");
try {
urlParams = buildUrlImgIdStrings(imageId, dataItem);
} catch (UnsupportedEncodingException e) {
throw new VnfImageException(e);
}
OperationResult tryGet =
restClient.getResource(config.getAaiBaseUrl() + config.getAaiVnfImageUrl() + "?" + urlParams,
distributionId, MediaType.APPLICATION_JSON_TYPE);
if (tryGet == null) {
throw new VnfImageException(imageId.toString());
}
int resultCode = tryGet.getResultCode();
if (resultCode == Response.Status.NOT_FOUND.getStatusCode()) {
// This vnf-image is missing, so add it
boolean success = putVnfImage(restClient, dataItem, distributionId);
if (!success) {
throw new VnfImageException(imageId.toString());
}
completedArtifacts.add(vnfcArtifact);
logger.info(ModelLoaderMsgs.DISTRIBUTION_EVENT, imageId + " successfully ingested.");
} else if (resultCode == Response.Status.OK.getStatusCode()) {
logger.info(ModelLoaderMsgs.DISTRIBUTION_EVENT, imageId + " already exists. Skipping ingestion.");
} else {
// if other than 404 or 200, something went wrong
throw new VnfImageException(imageId.toString(), resultCode);
}
}
}
private String buildUrlImgIdStrings(StringBuilder imageId, Map<String, String> dataItem)
throws UnsupportedEncodingException {
StringBuilder urlParams = new StringBuilder();
for (Entry<String, String> entry : dataItem.entrySet()) {
urlParams.append(entry.getKey()).append("=").append(UriUtils.encode(entry.getValue(), "UTF-8")).append("&");
imageId.append(" ").append(entry.getValue());
}
return urlParams.deleteCharAt(urlParams.length() - 1).toString();
}
private boolean putVnfImage(AaiRestClient restClient, Map<String, String> dataItem, String distributionId) {
// Generate a new UUID for the image data item
String uuid = UUID.randomUUID().toString();
dataItem.put(ATTR_UUID, uuid);
String payload = new Gson().toJson(dataItem);
String putUrl = config.getAaiBaseUrl() + config.getAaiVnfImageUrl() + "/vnf-image/" + uuid;
OperationResult putResp =
restClient.putResource(putUrl, payload, distributionId, MediaType.APPLICATION_JSON_TYPE);
return putResp != null && putResp.getResultCode() == Response.Status.CREATED.getStatusCode();
}
private List<Map<String, String>> unmarshallVnfcData(Artifact vnfcArtifact) {
// Unmarshall Babel JSON payload into a List of Maps of JSON attribute name/values.
return new Gson().fromJson(StringEscapeUtils.unescapeJson(vnfcArtifact.getPayload()),
new TypeToken<List<Map<String, String>>>() {}.getType());
}
/*
* If something fails in the middle of ingesting the catalog we want to roll back any changes to the DB
*/
@Override
public void rollback(List<Artifact> completedArtifacts, String distributionId, AaiRestClient aaiClient) {
for (Artifact completedArtifact : completedArtifacts) {
List<Map<String, String>> completedImageData = unmarshallVnfcData(completedArtifact);
for (Map<String, String> data : completedImageData) {
String url = config.getAaiBaseUrl() + config.getAaiVnfImageUrl() + "/vnf-image/" + data.get(ATTR_UUID);
// Try to delete the image. If something goes wrong we can't really do anything here
aaiClient.getAndDeleteResource(url, distributionId);
}
}
}
}
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