org.eclipse.dirigible.components.odata.synchronizer.ODataSynchronizer Maven / Gradle / Ivy
/*
* Copyright (c) 2023 SAP SE or an SAP affiliate company and Eclipse Dirigible contributors
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v20.html
*
* SPDX-FileCopyrightText: 2023 SAP SE or an SAP affiliate company and Eclipse Dirigible contributors
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.dirigible.components.odata.synchronizer;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.nio.file.attribute.BasicFileAttributes;
import java.sql.SQLException;
import java.text.ParseException;
import java.util.List;
import org.apache.commons.io.FilenameUtils;
import org.eclipse.dirigible.commons.config.Configuration;
import org.eclipse.dirigible.components.base.artefact.Artefact;
import org.eclipse.dirigible.components.base.artefact.ArtefactLifecycle;
import org.eclipse.dirigible.components.base.artefact.ArtefactPhase;
import org.eclipse.dirigible.components.base.artefact.ArtefactService;
import org.eclipse.dirigible.components.base.artefact.topology.TopologicalDepleter;
import org.eclipse.dirigible.components.base.artefact.topology.TopologyWrapper;
import org.eclipse.dirigible.components.base.helpers.JsonHelper;
import org.eclipse.dirigible.components.base.synchronizer.Synchronizer;
import org.eclipse.dirigible.components.base.synchronizer.SynchronizerCallback;
import org.eclipse.dirigible.components.base.synchronizer.SynchronizersOrder;
import org.eclipse.dirigible.components.odata.domain.OData;
import org.eclipse.dirigible.components.odata.domain.ODataContainer;
import org.eclipse.dirigible.components.odata.domain.ODataHandler;
import org.eclipse.dirigible.components.odata.domain.ODataMapping;
import org.eclipse.dirigible.components.odata.domain.ODataSchema;
import org.eclipse.dirigible.components.odata.service.ODataContainerService;
import org.eclipse.dirigible.components.odata.service.ODataHandlerService;
import org.eclipse.dirigible.components.odata.service.ODataMappingService;
import org.eclipse.dirigible.components.odata.service.ODataSchemaService;
import org.eclipse.dirigible.components.odata.service.ODataService;
import org.eclipse.dirigible.components.odata.transformers.DefaultTableMetadataProvider;
import org.eclipse.dirigible.components.odata.transformers.OData2ODataHTransformer;
import org.eclipse.dirigible.components.odata.transformers.OData2ODataMTransformer;
import org.eclipse.dirigible.components.odata.transformers.OData2ODataXTransformer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
/**
* The Class ListenerSynchronizer.
*
* @param the generic type
*/
@Component
@Order(SynchronizersOrder.ODATA)
public class ODataSynchronizer implements Synchronizer {
/** The Constant logger. */
private static final Logger logger = LoggerFactory.getLogger(ODataSynchronizer.class);
/** The Constant FILE_EXTENSION_LISTENER. */
private static final String FILE_EXTENSION_ODATA = ".odata";
/** The callback. */
private SynchronizerCallback callback;
/** The OData service. */
@Autowired
private ODataService odataService;
/** The OData container service. */
@Autowired
private ODataContainerService odataContainerService;
/** The OData handler service. */
@Autowired
private ODataHandlerService odataHandlerService;
/** The OData mapping service. */
@Autowired
private ODataMappingService odataMappingService;
/** The OData schema service. */
@Autowired
private ODataSchemaService odataSchemaService;
/**
* Checks if is accepted.
*
* @param file the file
* @param attrs the attrs
* @return true, if is accepted
*/
@Override
public boolean isAccepted(Path file, BasicFileAttributes attrs) {
return file.toString().endsWith(FILE_EXTENSION_ODATA);
}
/**
* Checks if is accepted.
*
* @param type the type
* @return true, if is accepted
*/
@Override
public boolean isAccepted(String type) {
return OData.ARTEFACT_TYPE.equals(type);
}
/**
* Load.
*
* @param location the location
* @param content the content
* @return the list
* @throws ParseException
*/
@Override
public List parse(String location, byte[] content) throws ParseException {
OData odata = parseOData(location, new String(content, StandardCharsets.UTF_8));
try {
OData maybe = getService().findByKey(odata.getKey());
if (maybe != null) {
odata.setId(maybe.getId());
}
odata = getService().save(odata);
} catch (Exception e) {
if (logger.isErrorEnabled()) {logger.error(e.getMessage(), e);}
if (logger.isErrorEnabled()) {logger.error("odata: {}", odata);}
if (logger.isErrorEnabled()) {logger.error("content: {}", new String(content));}
throw new ParseException(e.getMessage(), 0);
}
return List.of(odata);
}
/**
* Retrieve.
*
* @param location the location
* @return the list
*/
@Override
public List retrieve(String location) {
List list = getService().getAll();
for (OData odata : list) {
OData parsed = parseOData(location, odata.getContent());
odata.setEntities(parsed.getEntities());
odata.setAssociations(parsed.getAssociations());
}
return list;
}
/**
* Sets the status.
*
* @param artefact the artefact
* @param lifecycle the lifecycle
* @param error the error
*/
@Override
public void setStatus(Artefact artefact, ArtefactLifecycle lifecycle, String error) {
artefact.setLifecycle(lifecycle);
artefact.setError(error);
getService().save((OData) artefact);
}
/**
* Parses the O data.
*
* @param location the location
* @param content the content
* @return the o data
*/
public static OData parseOData(String location, byte[] content) {
return parseOData(location, new String(content, StandardCharsets.UTF_8));
}
/**
* Parses the O data.
*
* @param location the location
* @param content the content
* @return the o data
*/
public static OData parseOData(String location, String content) {
OData odata = JsonHelper.fromJson(content, OData.class);
Configuration.configureObject(odata);
odata.setLocation(location);
odata.setType(OData.ARTEFACT_TYPE);
odata.setName(FilenameUtils.getBaseName(location));
odata.setContent(content);
odata.updateKey();
odata.getAssociations().forEach(association -> {
if (association.getFrom().getProperty() != null) {
association.getFrom().getProperties().add(association.getFrom().getProperty());
}
if (association.getTo().getProperty() != null) {
association.getTo().getProperties().add(association.getTo().getProperty());
}
});
return odata;
}
/**
* Gets the service.
*
* @return the service
*/
@Override
public ArtefactService getService() {
return odataService;
}
/**
* Complete.
*
* @param wrapper the wrapper
* @param flow the flow
* @return true, if successful
*/
@Override
public boolean complete(TopologyWrapper wrapper, ArtefactPhase flow) {
try {
OData odata = null;
if (wrapper.getArtefact() instanceof OData) {
odata = (OData) wrapper.getArtefact();
} else {
throw new UnsupportedOperationException(String.format("Trying to process %s as OData", wrapper.getArtefact().getClass()));
}
switch (flow) {
case CREATE:
if (ArtefactLifecycle.NEW.equals(odata.getLifecycle())) {
generateOData(odata);
callback.registerState(this, wrapper, ArtefactLifecycle.CREATED, "");
}
break;
case UPDATE:
if (ArtefactLifecycle.MODIFIED.equals(odata.getLifecycle())) {
cleanupOData(odata);
generateOData(odata);
callback.registerState(this, wrapper, ArtefactLifecycle.UPDATED, "");
}
break;
case DELETE:
if (ArtefactLifecycle.CREATED.equals(odata.getLifecycle())
|| ArtefactLifecycle.UPDATED.equals(odata.getLifecycle())) {
cleanupOData(odata);
callback.registerState(this, wrapper, ArtefactLifecycle.DELETED, "");
}
break;
}
return true;
} catch (SQLException e) {
if (logger.isErrorEnabled()) {logger.error(e.getMessage(), e);}
callback.addError(e.getMessage());
callback.registerState(this, wrapper, ArtefactLifecycle.FAILED, e.getMessage());
return false;
}
}
/**
* Generate O data.
*
* @param odata the odata
* @throws SQLException the SQL exception
*/
public void generateOData(OData odata) throws SQLException {
// METADATA AND MAPPINGS GENERATION LOGIC
String[] odataxc = generateODataSchema(odata);
String odatax = odataxc[0];
String odatac = odataxc[1];
ODataSchema odataSchema = new ODataSchema(odata.getLocation(), odata.getName(), null, null, odatax.getBytes());
odataSchemaService.save(odataSchema);
ODataContainer odataContainer = new ODataContainer(odata.getLocation(), odata.getName(), null, null, odatac.getBytes());
odataContainerService.save(odataContainer);
String[] odatams = generateODataMappings(odata);
int i=1;
for (String odatam : odatams) {
ODataMapping odataMapping = new ODataMapping(odata.getLocation(), odata.getName() + "#" + i++, null, null, odatam.getBytes());
odataMappingService.save(odataMapping);
}
List odatahs = generateODataHandlers(odata);
for (ODataHandler odatah : odatahs) {
ODataHandler odataHandler = new ODataHandler(odata.getLocation(), odatah.getName() + "#" + i++, null, null,
odatah.getNamespace(), odatah.getMethod(), odatah.getKind(), odatah.getHandler());
odataHandlerService.save(odataHandler);
}
}
/**
* Cleanup O data.
*
* @param odata the odata
*/
public void cleanupOData(OData odata) {
// CLEAN UP LOGIC
odataSchemaService.removeSchema(odata.getLocation());
odataContainerService.removeContainer(odata.getLocation());
odataMappingService.removeMappings(odata.getLocation());
odataHandlerService.removeHandlers(odata.getLocation());
}
/**
* Cleanup.
*
* @param odata the OData
*/
@Override
public void cleanup(OData odata) {
try {
odataSchemaService.removeSchema(odata.getLocation());
odataContainerService.removeContainer(odata.getLocation());
odataMappingService.removeMappings(odata.getLocation());
odataHandlerService.removeHandlers(odata.getLocation());
getService().delete(odata);
} catch (Exception e) {
if (logger.isErrorEnabled()) {logger.error(e.getMessage(), e);}
callback.addError(e.getMessage());
callback.registerState(this, odata, ArtefactLifecycle.DELETED, "");
}
}
/**
* Sets the callback.
*
* @param callback the new callback
*/
@Override
public void setCallback(SynchronizerCallback callback) {
this.callback = callback;
}
/**
* Gets the file extension.
*
* @return the file extension
*/
@Override
public String getFileExtension() {
return FILE_EXTENSION_ODATA;
}
/**
* Gets the artefact type.
*
* @return the artefact type
*/
@Override
public String getArtefactType() {
return OData.ARTEFACT_TYPE;
}
/** The odata to odata mappings transformer. */
private OData2ODataMTransformer odata2ODataMTransformer = new OData2ODataMTransformer();
/** The odata to odata schema transformer. */
private OData2ODataXTransformer odata2ODataXTransformer = new OData2ODataXTransformer(new DefaultTableMetadataProvider());
/** The odata to odata handler transformer. */
private OData2ODataHTransformer odata2ODataHTransformer = new OData2ODataHTransformer();
/**
* Generate OData Schema.
*
* @param model the model
* @return the string[]
* @throws SQLException the SQL exception
*/
private String[] generateODataSchema(OData model) throws SQLException {
return odata2ODataXTransformer.transform(model);
}
/**
* Generate OData Mappings.
*
* @param model the model
* @return the string[]
* @throws SQLException the SQL exception
*/
private String[] generateODataMappings(OData model) throws SQLException {
return odata2ODataMTransformer.transform(model);
}
/**
* Generate OData Handlers.
*
* @param model the model
* @return the list
* @throws SQLException the SQL exception
*/
private List generateODataHandlers(OData model) throws SQLException {
return odata2ODataHTransformer.transform(model);
}
}
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