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package org.onap.sdc.dcae.client;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicHeader;
import org.onap.sdc.dcae.composition.restmodels.CreateVFCMTRequest;
import org.onap.sdc.dcae.composition.restmodels.ReferenceUUID;
import org.onap.sdc.dcae.composition.restmodels.sdc.*;
import org.onap.sdc.dcae.composition.util.DcaeBeConstants;
import org.onap.sdc.dcae.composition.util.SystemProperties;
import org.onap.sdc.dcae.enums.AssetType;
import org.onap.sdc.dcae.enums.SdcConsumerInfo;
import org.onap.sdc.dcae.utils.Normalizers;
import org.onap.sdc.dcae.utils.SDCResponseErrorHandler;
import org.onap.sdc.dcae.utils.SdcRestClientUtils;
import org.onap.sdc.common.onaplog.OnapLoggerDebug;
import org.onap.sdc.common.onaplog.Enums.LogLevel;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.*;
import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
import org.springframework.stereotype.Component;
import org.springframework.util.Base64Utils;
import org.springframework.web.client.*;
import javax.annotation.PostConstruct;
import java.net.URI;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;
@Component("sdcrestclient")
public class SdcRestClient implements ISdcClient {
@Autowired
private SystemProperties systemProperties;
private static final String SLASH = "/";
private static final String ECOMP_INSTANCE_ID_HEADER = "X-ECOMP-InstanceID";
private static final String ECOMP_REQUEST_ID_HEADER = "X-ECOMP-RequestID";
private static final String USER_ID_HEADER = "USER_ID";
private static final String RESOURCES_PATH = "resources";
private static final String SERVICES_PATH = "services";
private static final String ARTIFACTS_PATH = "artifacts";
private static final String CONTENT_MD5_HEADER = "Content-MD5";
private static final String RESOURCE_INSTANCES_PATH = "resourceInstances";
private static final String LIFECYCLE_STATE_PATH = "lifecycleState/{lifecycleOperation}";
private static final String METADATA_PATH = "metadata";
private static final String VERSION_PATH = "version";
private static final String MONITORING_REFERENCES_PATH = "externalReferences/monitoring";
private static OnapLoggerDebug debugLogger = OnapLoggerDebug.getInstance();
private String uri;
private RestTemplate client;
@PostConstruct
private void init() {
URI configUri = URI.create(systemProperties.getProperties().getProperty(DcaeBeConstants.Config.URI));
EnumMap<SdcConsumerInfo, String> userInfo = SdcRestClientUtils.extractConsumerInfoFromUri(configUri);
CloseableHttpClient httpClient = HttpClientBuilder.create().setDefaultHeaders(defaultHeaders(userInfo)).build();
HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
requestFactory.setHttpClient(httpClient);
client = new RestTemplate(requestFactory);
client.setErrorHandler(new SDCResponseErrorHandler());
uri = userInfo.get(SdcConsumerInfo.CATALOG_URL);
}
private List<BasicHeader> defaultHeaders(EnumMap<SdcConsumerInfo, String> userInfo) {
List<BasicHeader> headers = new ArrayList<>();
headers.add(new BasicHeader(HttpHeaders.AUTHORIZATION, userInfo.get(SdcConsumerInfo.AUTH)));
headers.add(new BasicHeader(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE));
headers.add(new BasicHeader(HttpHeaders.ACCEPT, MediaType.APPLICATION_OCTET_STREAM_VALUE));
headers.add(new BasicHeader(ECOMP_INSTANCE_ID_HEADER, userInfo.get(SdcConsumerInfo.INSTANCE_ID)));
return headers;
}
public ResourceDetailed getResource(String uuid, String requestId) {
String url = buildRequestPath(RESOURCES_PATH, uuid, METADATA_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Get resource from SDC. URL={}", url);
return getObject(url, requestId, ResourceDetailed.class);
}
public ServiceDetailed getService(String uuid, String requestId) {
String url = buildRequestPath(SERVICES_PATH, uuid, METADATA_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Get service from SDC. URL={}", url);
return getObject(url, requestId, ServiceDetailed.class);
}
public List<Resource> getResources(String resourceType, String category, String subcategory, String requestId) {
String url = buildRequestPath(RESOURCES_PATH, SdcRestClientUtils.buildResourceFilterQuery(resourceType, category, subcategory));
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Get resources from SDC. URL={}", url);
return Arrays.asList(getObject(url, requestId, Resource[].class));
}
public List<Service> getServices(String requestId) {
String url = buildRequestPath(SERVICES_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Get services from SDC. URL={}", url);
return Arrays.asList(getObject(url, requestId, Service[].class));
}
public String addExternalMonitoringReference(String userId, CreateVFCMTRequest resource, ReferenceUUID vfcmtUuid, String requestId) {
String url = buildRequestPath(resource.getContextType(), resource.getServiceUuid(), RESOURCE_INSTANCES_PATH,
Normalizers.normalizeComponentInstanceName(resource.getVfiName()), MONITORING_REFERENCES_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Connecting service id {} name {} to vfcmt {} URL={}",
resource.getServiceUuid(), resource.getVfiName(), vfcmtUuid.getReferenceUUID(), url);
return client.postForObject(url, new HttpEntity<>(vfcmtUuid, postResourceHeaders(userId, requestId)),
String.class);
}
public void deleteExternalMonitoringReference(String userId, String context, String uuid, String normalizeVfiName, String vfcmtUuid, String requestId) {
String url = buildRequestPath(context, uuid, RESOURCE_INSTANCES_PATH,
normalizeVfiName, MONITORING_REFERENCES_PATH, vfcmtUuid);
client.exchange(url, HttpMethod.DELETE, new HttpEntity(postResourceHeaders(userId, requestId)), String.class);
}
public ResourceDetailed createResource(String userId, CreateVFCMTRequest resource, String requestId) {
String url = buildRequestPath(RESOURCES_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Create SDC resource with name {} URL={}", resource.getName(), url);
return client.postForObject(url, new HttpEntity<>(resource, postResourceHeaders(userId, requestId)), ResourceDetailed.class);
}
public ResourceDetailed changeResourceLifecycleState(String userId, String uuid, String lifecycleOperation, String userRemarks, String requestId) {
String url = buildRequestPath(RESOURCES_PATH, uuid, LIFECYCLE_STATE_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Change SDC resource lifecycle state ({}). URL={}", lifecycleOperation, url);
return client.postForObject(url, new HttpEntity<>(SdcRestClientUtils.buildUserRemarksObject(userRemarks), postResourceHeaders(userId, requestId)), ResourceDetailed.class, lifecycleOperation);
}
public ServiceDetailed changeServiceLifecycleState(String userId, String uuid, String lifecycleOperation, String userRemarks, String requestId) {
String url = buildRequestPath(SERVICES_PATH, uuid, LIFECYCLE_STATE_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Change SDC service lifecycle state ({}). URL={}", lifecycleOperation, url);
return client.postForObject(url, new HttpEntity<>(SdcRestClientUtils.buildUserRemarksObject(userRemarks), postResourceHeaders(userId, requestId)), ServiceDetailed.class, lifecycleOperation);
}
public Asset changeAssetLifecycleState(String userId, String uuid, String lifecycleOperation, String userRemarks, AssetType assetType, String requestId) {
return AssetType.RESOURCE == assetType ? changeResourceLifecycleState(userId, uuid, lifecycleOperation, userRemarks, requestId) : changeServiceLifecycleState(userId, uuid, lifecycleOperation, userRemarks, requestId);
}
public String getResourceArtifact(String resourceUuid, String artifactUuid, String requestId) {
String url = buildRequestPath(RESOURCES_PATH, resourceUuid, ARTIFACTS_PATH, artifactUuid);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Get resource artifact from SDC. URL={}", url);
return getObject(url, requestId, String.class);
}
public Artifact createResourceArtifact(String userId, String resourceUuid, Artifact artifact, String requestId) throws Exception {
String url = buildRequestPath(RESOURCES_PATH, resourceUuid, ARTIFACTS_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Create SDC resource artifact. URL={}", url);
String artifactData = SdcRestClientUtils.artifactToString(artifact);
return client.postForObject(url, new HttpEntity<>(artifactData, postArtifactHeaders(userId, artifactData, requestId)), Artifact.class);
}
public Artifact updateResourceArtifact(String userId, String resourceUuid, Artifact artifact, String requestId) throws Exception {
String url = buildRequestPath(RESOURCES_PATH, resourceUuid, ARTIFACTS_PATH, artifact.getArtifactUUID());
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Update SDC resource artifact. URL={}", url);
String artifactData = SdcRestClientUtils.artifactToString(artifact);
return client.postForObject(url, new HttpEntity<>(artifactData, postArtifactHeaders(userId, artifactData, requestId)), Artifact.class);
}
public void deleteResourceArtifact(String userId, String resourceUuid, String artifactId, String requestId) {
String url = buildRequestPath(RESOURCES_PATH, resourceUuid, ARTIFACTS_PATH, artifactId);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Delete SDC resource artifact. URL={}", url);
client.exchange(url, HttpMethod.DELETE, new HttpEntity(postResourceHeaders(userId, requestId)), Artifact.class);
}
public Artifact createVfInstanceArtifact(String userId, String serviceUuid, String normalizedInstanceName, Artifact artifact, String requestId) throws Exception {
String url = buildRequestPath(SERVICES_PATH, serviceUuid, RESOURCE_INSTANCES_PATH, normalizedInstanceName, ARTIFACTS_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Create SDC resource instance artifact. URL={}", url);
String artifactData = SdcRestClientUtils.artifactToString(artifact);
return client.postForObject(url, new HttpEntity<>(artifactData, postArtifactHeaders(userId, artifactData, requestId)), Artifact.class);
}
public Artifact updateVfInstanceArtifact(String userId, String serviceUuid, String normalizedInstanceName, Artifact artifact, String requestId) throws Exception {
String url = buildRequestPath(SERVICES_PATH, serviceUuid, RESOURCE_INSTANCES_PATH, normalizedInstanceName, ARTIFACTS_PATH, artifact.getArtifactUUID());
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Update SDC resource instance artifact. URL={}", url);
String artifactData = SdcRestClientUtils.artifactToString(artifact);
return client.postForObject(url, new HttpEntity<>(artifactData, postArtifactHeaders(userId, artifactData, requestId)), Artifact.class);
}
public ExternalReferencesMap getMonitoringReferences(String context, String uuid, String version, String requestId) {
String url = buildRequestPath(context, uuid, VERSION_PATH, version, MONITORING_REFERENCES_PATH);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Get SDC service monitoring references. URL={}", url);
return getObject(url, requestId, ExternalReferencesMap.class);
}
public void deleteInstanceResourceArtifact(String userId, String context, String serviceUuid, String normalizedVfiName, String artifactUuid, String requestId) {
String url = buildRequestPath(context, serviceUuid, RESOURCE_INSTANCES_PATH, normalizedVfiName, ARTIFACTS_PATH, artifactUuid);
debugLogger.log(LogLevel.DEBUG, this.getClass().getName(), "Delete SDC instance resource artifact. URL={}", url);
client.exchange(url, HttpMethod.DELETE, new HttpEntity(postResourceHeaders(userId, requestId)), Artifact.class);
}
private HttpHeaders postResourceHeaders(String userId, String requestId) {
HttpHeaders headers = requestHeader(requestId);
headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
headers.add(USER_ID_HEADER, userId);
return headers;
}
private HttpHeaders postArtifactHeaders(String userId, String artifact, String requestId) {
HttpHeaders headers = postResourceHeaders(userId, requestId);
String md5 = Base64Utils.encodeToString(DigestUtils.md5Hex(artifact).getBytes());
headers.add(CONTENT_MD5_HEADER, md5);
return headers;
}
private HttpHeaders requestHeader(String requestId){
HttpHeaders headers = new HttpHeaders();
headers.add(ECOMP_REQUEST_ID_HEADER, requestId);
return headers;
}
private <T> T getObject(String url, String requestId, Class<T> clazz) {
return client.exchange(url, HttpMethod.GET, new HttpEntity<>(requestHeader(requestId)), clazz).getBody();
}
private String buildRequestPath(String... args){
return uri + Stream.of(args).collect(Collectors.joining(SLASH));
}
}
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