*/
package org.onap.aai.modelloader.restclient;
-import com.sun.jersey.api.client.Client;
-import com.sun.jersey.api.client.ClientResponse;
-import com.sun.jersey.api.client.config.ClientConfig;
-import com.sun.jersey.api.client.config.DefaultClientConfig;
-import com.sun.jersey.api.client.filter.LoggingFilter;
-import com.sun.jersey.client.urlconnection.HTTPSProperties;
-
-import org.onap.aai.modelloader.config.ModelLoaderConfig;
-import org.onap.aai.modelloader.restclient.AaiRestClient;
-import org.onap.aai.modelloader.service.ModelLoaderMsgs;
-import org.onap.aai.cl.api.LogFields;
-import org.onap.aai.cl.api.LogLine;
+import com.sun.jersey.core.util.MultivaluedMapImpl; // NOSONAR
+// import edu.emory.mathcs.backport.java.util.Collections;
+import java.io.IOException;
+import java.io.StringReader;
+import java.net.URI;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.IntStream;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriBuilder;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
import org.onap.aai.cl.api.Logger;
import org.onap.aai.cl.eelf.LoggerFactory;
-import org.onap.aai.cl.mdc.MdcContext;
-import org.onap.aai.cl.mdc.MdcOverride;
+import org.onap.aai.modelloader.config.ModelLoaderConfig;
+import org.onap.aai.modelloader.service.ModelLoaderMsgs;
+import org.onap.aai.restclient.client.OperationResult;
+import org.onap.aai.restclient.client.RestClient;
+import org.onap.aai.restclient.enums.RestAuthenticationMode;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
-import java.io.ByteArrayOutputStream;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.PrintStream;
-import java.io.StringReader;
-import java.security.GeneralSecurityException;
-import java.security.KeyStore;
-import java.security.cert.X509Certificate;
-import java.text.SimpleDateFormat;
-
-import javax.net.ssl.HostnameVerifier;
-import javax.net.ssl.HttpsURLConnection;
-import javax.net.ssl.KeyManagerFactory;
-import javax.net.ssl.SSLContext;
-import javax.net.ssl.SSLSession;
-import javax.net.ssl.TrustManager;
-import javax.net.ssl.X509TrustManager;
-import javax.ws.rs.core.Response;
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-
+/**
+ * Wrapper around the standard A&AI Rest Client interface. This currently uses Jersey client 1.x
+ *
+ */
public class AaiRestClient {
- public enum MimeType {
- XML("application/xml"), JSON("application/json");
-
- private String httpType;
-
- MimeType(String httpType) {
- this.httpType = httpType;
- }
-
- String getHttpHeaderType() {
- return httpType;
- }
- }
-
- private static String HEADER_TRANS_ID = "X-TransactionId";
- private static String HEADER_FROM_APP_ID = "X-FromAppId";
- private static String HEADER_AUTHORIZATION = "Authorization";
- private static String ML_APP_NAME = "ModelLoader";
- private static String RESOURCE_VERSION_PARAM = "resource-version";
-
- private static SimpleDateFormat dateFormatter = new SimpleDateFormat(
- "yyyy-MM-dd'T'HH:mm:ss.SSSXXX");
-
- private static Logger logger = LoggerFactory.getInstance()
- .getLogger(AaiRestClient.class.getName());
- private static Logger metricsLogger = LoggerFactory.getInstance()
- .getMetricsLogger(AaiRestClient.class.getName());
-
- private ModelLoaderConfig config = null;
-
- public AaiRestClient(ModelLoaderConfig config) {
- this.config = config;
- }
- /**
- * Send a PUT request to the A&AI.
- *
- * @param url
- * - the url
- * @param transId
- * - transaction ID
- * @param payload
- * - the XML or JSON payload for the request
- * @param mimeType
- * - the content type (XML or JSON)
- * @return ClientResponse
- */
- public ClientResponse putResource(String url, String payload, String transId, MimeType mimeType) {
- ClientResponse result = null;
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- long startTimeInMs = 0;
- MdcOverride override = new MdcOverride();
+ public static final String HEADER_TRANS_ID = "X-TransactionId";
+ public static final String HEADER_FROM_APP_ID = "X-FromAppId";
+ public static final String ML_APP_NAME = "ModelLoader";
+ private static final String RESOURCE_VERSION_PARAM = "resource-version";
- try {
- Client client = setupClient();
+ private static Logger logger = LoggerFactory.getInstance().getLogger(AaiRestClient.class.getName());
- baos = new ByteArrayOutputStream();
- PrintStream ps = new PrintStream(baos);
- if (logger.isDebugEnabled()) {
- client.addFilter(new LoggingFilter(ps));
- }
+ private ModelLoaderConfig config = null;
- // Grab the current time so that we can use it for metrics purposes later.
- startTimeInMs = System.currentTimeMillis();
- override.addAttribute(MdcContext.MDC_START_TIME, dateFormatter.format(startTimeInMs));
-
- if (useBasicAuth()) {
- result = client.resource(url).header(HEADER_TRANS_ID, transId)
- .header(HEADER_FROM_APP_ID, ML_APP_NAME)
- .header(HEADER_AUTHORIZATION, getAuthenticationCredentials())
- .type(mimeType.getHttpHeaderType()).put(ClientResponse.class, payload);
- } else {
- result = client.resource(url).header(HEADER_TRANS_ID, transId)
- .header(HEADER_FROM_APP_ID, ML_APP_NAME).type(mimeType.getHttpHeaderType())
- .put(ClientResponse.class, payload);
- }
- } catch (Exception ex) {
- logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "PUT", url, ex.getLocalizedMessage());
- return null;
- } finally {
- if (logger.isDebugEnabled()) {
- logger.debug(baos.toString());
- }
- }
-
- if ((result != null) && ((result.getStatus() == Response.Status.CREATED.getStatusCode())
- || (result.getStatus() == Response.Status.OK.getStatusCode()))) {
- logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS, "PUT", url,
- Integer.toString(result.getStatus()));
- metricsLogger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS,
- new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, result.getStatus())
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION,
- result.getResponseStatus().toString()),
- override, "PUT", url, Integer.toString(result.getStatus()));
- } else {
- // If response is not 200 OK, then additionally log the reason
- String respMsg = result.getEntity(String.class);
- if (respMsg == null) {
- respMsg = result.getStatusInfo().getReasonPhrase();
- }
- logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_UNSUCCESSFUL, "PUT", url,
- Integer.toString(result.getStatus()), respMsg);
- metricsLogger.info(ModelLoaderMsgs.AAI_REST_REQUEST_UNSUCCESSFUL,
- new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, result.getStatus())
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION,
- result.getResponseStatus().toString()),
- override, "PUT", url, Integer.toString(result.getStatus()), respMsg);
+ public AaiRestClient(ModelLoaderConfig config) {
+ this.config = config;
}
- return result;
- }
-
- /**
- * Send a DELETE request to the A&AI.
- *
- * @param url
- * - the url
- * @param resourceVersion
- * - the resource-version of the model to delete
- * @param transId
- * - transaction ID
- * @return ClientResponse
- */
- public ClientResponse deleteResource(String url, String resourceVersion, String transId) {
- ClientResponse result = null;
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- long startTimeInMs = 0;
- MdcOverride override = new MdcOverride();
- try {
- Client client = setupClient();
-
- baos = new ByteArrayOutputStream();
- PrintStream ps = new PrintStream(baos);
- if (logger.isDebugEnabled()) {
- client.addFilter(new LoggingFilter(ps));
- }
-
- // Grab the current time so that we can use it for metrics purposes later.
- startTimeInMs = System.currentTimeMillis();
- override.addAttribute(MdcContext.MDC_START_TIME, dateFormatter.format(startTimeInMs));
-
- if (useBasicAuth()) {
- result = client.resource(url).queryParam(RESOURCE_VERSION_PARAM, resourceVersion)
- .header(HEADER_TRANS_ID, transId).header(HEADER_FROM_APP_ID, ML_APP_NAME)
- .header(HEADER_AUTHORIZATION, getAuthenticationCredentials())
- .delete(ClientResponse.class);
- } else {
- result = client.resource(url).queryParam(RESOURCE_VERSION_PARAM, resourceVersion)
- .header(HEADER_TRANS_ID, transId).header(HEADER_FROM_APP_ID, ML_APP_NAME)
- .delete(ClientResponse.class);
- }
- } catch (Exception ex) {
- logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "DELETE", url, ex.getLocalizedMessage());
- return null;
- } finally {
- if (logger.isDebugEnabled()) {
- logger.debug(baos.toString());
- }
+ /**
+ * Send a GET request to the A&AI for a resource.
+ *
+ * @param url
+ * @param transId
+ * @param mediaType
+ * @return
+ */
+ public OperationResult getResource(String url, String transId, MediaType mediaType) {
+ return setupClient().get(url, buildHeaders(transId), mediaType);
}
- logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS, "DELETE", url,
- Integer.toString(result.getStatus()));
- metricsLogger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS,
- new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, result.getStatus()).setField(
- LogLine.DefinedFields.RESPONSE_DESCRIPTION, result.getResponseStatus().toString()),
- override, "DELETE", url, Integer.toString(result.getStatus()));
-
- return result;
- }
-
- /**
- * Send a GET request to the A&AI for a resource.
- *
- * @param url
- * - the url to use
- * @param transId
- * - transaction ID
- * @return ClientResponse
- */
- public ClientResponse getResource(String url, String transId, MimeType mimeType) {
- ClientResponse result = null;
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- long startTimeInMs = 0;
- MdcOverride override = new MdcOverride();
-
- try {
- Client client = setupClient();
-
- baos = new ByteArrayOutputStream();
- PrintStream ps = new PrintStream(baos);
- if (logger.isDebugEnabled()) {
- client.addFilter(new LoggingFilter(ps));
- }
-
- // Grab the current time so that we can use it for metrics purposes later.
- startTimeInMs = System.currentTimeMillis();
- override.addAttribute(MdcContext.MDC_START_TIME, dateFormatter.format(startTimeInMs));
-
- if (useBasicAuth()) {
- result = client.resource(url).header(HEADER_TRANS_ID, transId)
- .header(HEADER_FROM_APP_ID, ML_APP_NAME).accept(mimeType.getHttpHeaderType())
- .header(HEADER_AUTHORIZATION, getAuthenticationCredentials()).get(ClientResponse.class);
- } else {
- result = client.resource(url).header(HEADER_TRANS_ID, transId)
- .header(HEADER_FROM_APP_ID, ML_APP_NAME).accept(mimeType.getHttpHeaderType())
- .get(ClientResponse.class);
-
- }
- } catch (Exception ex) {
- logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "GET", url, ex.getLocalizedMessage());
- return null;
- } finally {
- if (logger.isDebugEnabled()) {
- logger.debug(baos.toString());
- }
+ /**
+ * Send a PUT request to the A&AI.
+ *
+ * @param url - the url
+ * @param payload - the XML or JSON payload for the request
+ * @param transId - transaction ID
+ * @param mediaType - the content type (XML or JSON)
+ * @return operation result
+ */
+ public OperationResult putResource(String url, String payload, String transId, MediaType mediaType) {
+ logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_PAYLOAD, payload);
+ return setupClient().put(url, payload, buildHeaders(transId), mediaType, mediaType);
}
- logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS, "GET", url,
- Integer.toString(result.getStatus()));
- metricsLogger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS,
- new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, result.getStatus()).setField(
- LogLine.DefinedFields.RESPONSE_DESCRIPTION, result.getResponseStatus().toString()),
- override, "GET", url, Integer.toString(result.getStatus()));
-
- return result;
- }
-
- /**
- * Send a POST request to the A&AI.
- *
- * @param url
- * - the url
- * @param transId
- * - transaction ID
- * @param payload
- * - the XML or JSON payload for the request
- * @param mimeType
- * - the content type (XML or JSON)
- * @return ClientResponse
- */
- public ClientResponse postResource(String url, String payload, String transId, MimeType mimeType) {
- ClientResponse result = null;
- ByteArrayOutputStream baos = new ByteArrayOutputStream();
- long startTimeInMs = 0;
- MdcOverride override = new MdcOverride();
- try {
- Client client = setupClient();
-
- baos = new ByteArrayOutputStream();
- PrintStream ps = new PrintStream(baos);
- if (logger.isDebugEnabled()) {
- client.addFilter(new LoggingFilter(ps));
- }
-
- // Grab the current time so that we can use it for metrics purposes later.
- startTimeInMs = System.currentTimeMillis();
- override.addAttribute(MdcContext.MDC_START_TIME, dateFormatter.format(startTimeInMs));
-
- if (useBasicAuth()) {
- result = client.resource(url).header(HEADER_TRANS_ID, transId)
- .header(HEADER_FROM_APP_ID, ML_APP_NAME)
- .header(HEADER_AUTHORIZATION, getAuthenticationCredentials())
- .type(mimeType.getHttpHeaderType()).post(ClientResponse.class, payload);
- } else {
- result = client.resource(url).header(HEADER_TRANS_ID, transId)
- .header(HEADER_FROM_APP_ID, ML_APP_NAME).type(mimeType.getHttpHeaderType())
- .post(ClientResponse.class, payload);
- }
- } catch (Exception ex) {
- logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "POST", url, ex.getLocalizedMessage());
- return null;
- } finally {
- if (logger.isDebugEnabled()) {
- logger.debug(baos.toString());
- }
+ /**
+ * Send a POST request to the A&AI.
+ *
+ * @param url - the url
+ * @param transId - transaction ID
+ * @param payload - the XML or JSON payload for the request
+ * @param mimeType - the content type (XML or JSON)
+ * @return ClientResponse
+ */
+ public OperationResult postResource(String url, String payload, String transId, MediaType mediaType) {
+ logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_PAYLOAD, payload);
+ return setupClient().post(url, payload, buildHeaders(transId), mediaType, mediaType);
}
- if ((result != null) && ((result.getStatus() == Response.Status.CREATED.getStatusCode())
- || (result.getStatus() == Response.Status.OK.getStatusCode()))) {
- logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS, "POST", url,
- Integer.toString(result.getStatus()));
- metricsLogger.info(ModelLoaderMsgs.AAI_REST_REQUEST_SUCCESS,
- new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, result.getStatus())
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION,
- result.getResponseStatus().toString()),
- override, "POST", url, Integer.toString(result.getStatus()));
- } else {
- // If response is not 200 OK, then additionally log the reason
- String respMsg = result.getEntity(String.class);
- if (respMsg == null) {
- respMsg = result.getStatusInfo().getReasonPhrase();
- }
- logger.info(ModelLoaderMsgs.AAI_REST_REQUEST_UNSUCCESSFUL, "POST", url,
- Integer.toString(result.getStatus()), respMsg);
- metricsLogger.info(ModelLoaderMsgs.AAI_REST_REQUEST_UNSUCCESSFUL,
- new LogFields().setField(LogLine.DefinedFields.RESPONSE_CODE, result.getStatus())
- .setField(LogLine.DefinedFields.RESPONSE_DESCRIPTION,
- result.getResponseStatus().toString()),
- override, "POST", url, Integer.toString(result.getStatus()), respMsg);
- }
- return result;
- }
-
- /**
- * Does a GET on a resource to retrieve the resource version, and then DELETE
- * that version.
- *
- * @param url
- * - the url
- * @param transId
- * - transaction ID
- * @return ClientResponse
- */
- public ClientResponse getAndDeleteResource(String url, String transId) {
- // First, GET the model
- ClientResponse getResponse = getResource(url, transId, MimeType.XML);
- if ((getResponse == null) || (getResponse.getStatus() != Response.Status.OK.getStatusCode())) {
- return getResponse;
+ /**
+ * Send a DELETE request to the A&AI.
+ *
+ * @param url - the url
+ * @param resourceVersion - the resource-version of the model to delete
+ * @param transId - transaction ID
+ * @return ClientResponse
+ */
+ public OperationResult deleteResource(String url, String resourceVersion, String transId) {
+ URI uri = UriBuilder.fromUri(url).queryParam(RESOURCE_VERSION_PARAM, resourceVersion).build();
+ return setupClient().delete(uri.toString(), buildHeaders(transId), null);
}
- // Delete the model using the resource version in the response
- String resVersion = null;
- try {
- resVersion = getResourceVersion(getResponse);
- } catch (Exception e) {
- logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "GET", url, e.getLocalizedMessage());
- return null;
+ /**
+ * Does a GET on a resource to retrieve the resource version, and then DELETE that version.
+ *
+ * @param url - the url
+ * @param transId - transaction ID
+ * @return ClientResponse
+ */
+ public OperationResult getAndDeleteResource(String url, String transId) {
+ // First, GET the model
+ OperationResult getResponse = getResource(url, transId, MediaType.APPLICATION_XML_TYPE);
+ if ((getResponse == null) || (getResponse.getResultCode() != Response.Status.OK.getStatusCode())) {
+ return getResponse;
+ }
+
+ // Delete the model using the resource version in the response
+ String resVersion = null;
+ try {
+ resVersion = getResourceVersion(getResponse);
+ } catch (Exception e) {
+ logger.error(ModelLoaderMsgs.AAI_REST_REQUEST_ERROR, "GET", url, e.getLocalizedMessage());
+ return null;
+ }
+
+ return deleteResource(url, resVersion, transId);
}
- return deleteResource(url, resVersion, transId);
- }
-
- private Client setupClient() throws IOException, GeneralSecurityException {
- ClientConfig clientConfig = new DefaultClientConfig();
-
- HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
- @Override
- public boolean verify(String string, SSLSession ssls) {
- return true;
- }
- });
-
- // Create a trust manager that does not validate certificate chains
- TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
- @Override
- public X509Certificate[] getAcceptedIssuers() {
- return null;
- }
-
- @Override
- public void checkClientTrusted(X509Certificate[] certs, String authType) {}
- @Override
- public void checkServerTrusted(X509Certificate[] certs, String authType) {}
- } };
-
- SSLContext ctx = SSLContext.getInstance("TLS");
- KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
- FileInputStream fin = new FileInputStream(config.getAaiKeyStorePath());
- KeyStore ks = KeyStore.getInstance("PKCS12");
- char[] pwd = config.getAaiKeyStorePassword().toCharArray();
- ks.load(fin, pwd);
- kmf.init(ks, pwd);
-
- ctx.init(kmf.getKeyManagers(), trustAllCerts, null);
- clientConfig.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
- new HTTPSProperties(new HostnameVerifier() {
- @Override
- public boolean verify(String theString, SSLSession sslSession) {
- return true;
- }
- }, ctx));
-
- Client client = Client.create(clientConfig);
+ public boolean useBasicAuth() {
+ return (config.getAaiAuthenticationUser() != null) && (config.getAaiAuthenticationPassword() != null);
+ }
- return client;
- }
+ private RestClient setupClient() {
+ RestClient restClient = new RestClient();
- private String getResourceVersion(ClientResponse response)
- throws ParserConfigurationException, SAXException, IOException {
- String respData = response.getEntity(String.class);
+ // @formatter:off
+ restClient.validateServerHostname(false)
+ .validateServerCertChain(false)
+ .clientCertFile(config.getAaiKeyStorePath())
+ .clientCertPassword(config.getAaiKeyStorePassword());
+ // @formatter:on
- DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
- DocumentBuilder builder = factory.newDocumentBuilder();
- InputSource is = new InputSource(new StringReader(respData));
- Document doc = builder.parse(is);
+ if (useBasicAuth()) {
+ restClient.authenticationMode(RestAuthenticationMode.SSL_BASIC);
+ restClient.basicAuthUsername(config.getAaiAuthenticationUser());
+ restClient.basicAuthPassword(config.getAaiAuthenticationPassword());
+ }
- NodeList nodeList = doc.getDocumentElement().getChildNodes();
- for (int i = 0; i < nodeList.getLength(); i++) {
- Node currentNode = nodeList.item(i);
- if (currentNode.getNodeName().equals(RESOURCE_VERSION_PARAM)) {
- return currentNode.getTextContent();
- }
+ return restClient;
}
- return null;
- }
-
- private String getAuthenticationCredentials() {
-
- String usernameAndPassword = config.getAaiAuthenticationUser() + ":"
- + config.getAaiAuthenticationPassword();
- return "Basic " + java.util.Base64.getEncoder().encodeToString(usernameAndPassword.getBytes());
- }
+ /**
+ * Create the HTTP headers required for an A&AI operation (GET/POST/PUT/DELETE)
+ *
+ * @param transId
+ * @return map of headers
+ */
+ @SuppressWarnings("unchecked")
+ private Map<String, List<String>> buildHeaders(String transId) {
+ MultivaluedMap<String, String> headers = new MultivaluedMapImpl();
+ headers.put(HEADER_TRANS_ID, Collections.singletonList(transId));
+ headers.put(HEADER_FROM_APP_ID, Collections.singletonList(ML_APP_NAME));
+ return headers;
+ }
- public boolean useBasicAuth() {
- return (config.getAaiAuthenticationUser() != null)
- && (config.getAaiAuthenticationPassword() != null);
- }
+ private String getResourceVersion(OperationResult getResponse)
+ throws ParserConfigurationException, SAXException, IOException {
+ String respData = getResponse.getResult();
+
+ DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+ factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
+ DocumentBuilder builder = factory.newDocumentBuilder();
+ InputSource is = new InputSource(new StringReader(respData));
+ Document doc = builder.parse(is);
+
+ NodeList nodesList = doc.getDocumentElement().getChildNodes();
+
+ // @formatter:off
+ return IntStream.range(0, nodesList.getLength()).mapToObj(nodesList::item)
+ .filter(childNode -> childNode.getNodeName().equals(RESOURCE_VERSION_PARAM))
+ .findFirst()
+ .map(Node::getTextContent)
+ .orElse(null);
+ // @formatter:on
+ }
}
Code Review / aai / model-loader.git / blobdiff