142 lines
5.4 KiB
Java
142 lines
5.4 KiB
Java
package org.gcube.informationsystem.resourceregistry.utils;
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import java.util.UUID;
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import org.gcube.com.fasterxml.jackson.databind.JsonNode;
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import org.gcube.com.fasterxml.jackson.databind.ObjectMapper;
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import org.gcube.com.fasterxml.jackson.databind.node.ObjectNode;
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import org.gcube.informationsystem.base.reference.Element;
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import org.gcube.informationsystem.base.reference.IdentifiableElement;
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import org.gcube.informationsystem.base.reference.properties.PropertyElement;
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import org.gcube.informationsystem.model.reference.entities.Entity;
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import org.gcube.informationsystem.model.reference.relations.Relation;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.NotFoundException;
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import org.gcube.informationsystem.resourceregistry.api.exceptions.ResourceRegistryException;
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import org.gcube.informationsystem.resourceregistry.contexts.ContextUtility;
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import org.gcube.informationsystem.resourceregistry.contexts.security.AdminSecurityContext;
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import org.gcube.informationsystem.resourceregistry.contexts.security.SecurityContext.PermissionMode;
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import org.gcube.informationsystem.resourceregistry.instances.base.ElementManagementUtility;
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import org.gcube.informationsystem.serialization.ElementMapper;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.arcadedb.database.Document;
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import com.arcadedb.database.MutableEmbeddedDocument;
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import com.arcadedb.graph.Edge;
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import com.arcadedb.graph.Vertex;
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import com.arcadedb.query.sql.executor.Result;
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import com.arcadedb.query.sql.executor.ResultSet;
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import com.arcadedb.remote.RemoteDatabase;
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/**
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* @author Luca Frosini (ISTI - CNR)
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*/
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public class DBUtility {
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private static final Logger logger = LoggerFactory.getLogger(DBUtility.class);
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public static final String DB_TYPE_PROPERTY = "@type";
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public static final String SHOULD_NOT_OCCUR_ERROR_MESSAGE = "This is really strange and should not occur. Please contact the system administrator.";
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public static JsonNode toJsonNode(Document document) throws ResourceRegistryException {
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try {
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ObjectMapper objectMapper = new ObjectMapper();
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String string = toJsonString(document);
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ObjectNode objectNode = (ObjectNode) objectMapper.readTree(string);
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return objectNode;
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} catch(Exception e) {
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throw new ResourceRegistryException(e);
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}
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}
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public static String replaceType(String s) {
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s = s.replace("\"" + DB_TYPE_PROPERTY + "\"", "\"" + Element.TYPE_PROPERTY + "\"");
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return s;
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}
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public static String toJsonString(Document document) {
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String ret = document.toJSON().toString();
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// The above method set the type in @class property
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// We want to use the property set in Element.TYPE_PROPERTY
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ret = replaceType(ret);
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return ret;
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}
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public static String getAsStringForLogging(Document document) {
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return document.toJSON().toString();
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}
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public static String getAsStringForException(Document document) {
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return toJsonString(document);
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}
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public static <El extends Document> El getElementByUUIDAsAdmin(String elementType, UUID uuid,
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Class<? extends El> clz) throws NotFoundException, ResourceRegistryException {
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RemoteDatabase adminDatabase = null;
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// RemoteDatabase current = ContextUtility.getCurrentODatabaseDocumentFromThreadLocal();
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try {
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AdminSecurityContext adminSecurityContext = ContextUtility.getAdminSecurityContext();
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adminDatabase = adminSecurityContext.getRemoteDatabase(PermissionMode.READER);
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return DBUtility.getElementByUUID(adminDatabase, elementType, uuid, clz);
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} finally {
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if(adminDatabase != null) {
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adminDatabase.close();
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}
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// if(current!=null) {
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// current.activateOnCurrentThread();
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// }
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}
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}
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public static <El extends Document> El getElementByUUID(RemoteDatabase database, String elementType, UUID uuid,
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Class<? extends El> clz) throws NotFoundException, ResourceRegistryException {
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if(elementType == null || elementType.compareTo("") == 0) {
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if(Vertex.class.isAssignableFrom(clz)) {
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elementType = Entity.NAME;
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}
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if(Edge.class.isAssignableFrom(clz)) {
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elementType = Relation.NAME;
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}
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}
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// TODO Rewrite using Gremlin
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String select = "SELECT FROM " + elementType + " WHERE " + IdentifiableElement.ID_PROPERTY + " = \"" + uuid.toString() + "\"";
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ResultSet resultSet = database.command("sql", select);
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if(resultSet == null || !resultSet.hasNext()) {
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String error = String.format("No %s with UUID %s was found", elementType, uuid.toString());
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logger.debug(error);
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throw new NotFoundException(error);
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}
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Result result = resultSet.next();
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@SuppressWarnings("unchecked")
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El element = (El) ElementManagementUtility.getElementFromOptional(result.getElement());
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logger.trace("{} with id {} is : {}", elementType, uuid.toString(), DBUtility.getAsStringForLogging(element));
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if(resultSet.hasNext()) {
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throw new ResourceRegistryException("Found more than one " + elementType + " with uuid " + uuid.toString()
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+ ". This is a fatal error please contact Admnistrator");
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}
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return element;
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}
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public static <P extends PropertyElement> P getPropertyDocument(Class<P> clz, Document element, String property)
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throws ResourceRegistryException {
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try {
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MutableEmbeddedDocument document = (MutableEmbeddedDocument) element.getEmbedded(property);
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P e = ElementMapper.unmarshal(clz, DBUtility.toJsonString(document));
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return e;
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} catch(Exception ex) {
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String error = String.format("Error while getting %s from %s", property, getAsStringForException(element));
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throw new ResourceRegistryException(error, ex);
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}
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}
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} |