org.eclipse.dirigible.components.odata.handler.ScriptingOData2EventHandler Maven / Gradle / Ivy
/*
* Copyright (c) 2024 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: Eclipse Dirigible contributors SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.dirigible.components.odata.handler;
import java.io.InputStream;
import java.util.List;
import java.util.Map;
import org.apache.olingo.odata2.api.ep.EntityProvider;
import org.apache.olingo.odata2.api.ep.entry.ODataEntry;
import org.apache.olingo.odata2.api.exception.ODataException;
import org.apache.olingo.odata2.api.processor.ODataResponse;
import org.apache.olingo.odata2.api.uri.UriInfo;
import org.apache.olingo.odata2.api.uri.info.DeleteUriInfo;
import org.apache.olingo.odata2.api.uri.info.PostUriInfo;
import org.apache.olingo.odata2.api.uri.info.PutMergePatchUriInfo;
import org.eclipse.dirigible.commons.config.Configuration;
import org.eclipse.dirigible.components.engine.javascript.service.JavascriptService;
import org.eclipse.dirigible.components.odata.api.ODataHandlerMethods;
import org.eclipse.dirigible.components.odata.api.ODataHandlerTypes;
import org.eclipse.dirigible.components.odata.domain.ODataHandler;
import org.eclipse.dirigible.components.odata.service.ODataHandlerService;
import org.eclipse.dirigible.engine.odata2.sql.api.OData2EventHandler;
import org.eclipse.dirigible.repository.api.RepositoryPath;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The Class ScriptingOData2EventHandler.
*/
public class ScriptingOData2EventHandler implements OData2EventHandler {
/** The Constant DIRIGIBLE_ODATA_HANDLER_EXECUTOR_TYPE. */
private static final String DIRIGIBLE_ODATA_HANDLER_EXECUTOR_TYPE = "DIRIGIBLE_ODATA_HANDLER_EXECUTOR_TYPE";
/** The Constant DIRIGIBLE_ODATA_HANDLER_EXECUTOR_ON_EVENT. */
private static final String DIRIGIBLE_ODATA_HANDLER_EXECUTOR_ON_EVENT = "DIRIGIBLE_ODATA_HANDLER_EXECUTOR_ON_EVENT";
/** The Constant logger. */
private static final Logger logger = LoggerFactory.getLogger(ScriptingOData2EventHandler.class);
/** The Constant DIRIGIBLE_ODATA_WRAPPER_MODULE_ON_EVENT. */
private static final String DIRIGIBLE_ODATA_WRAPPER_MODULE_ON_EVENT = "odata/wrappers/onEvent";
/** The Constant ERROR_EXECUTING_SCRIPTING_HANDLER. */
private static final String ERROR_EXECUTING_SCRIPTING_HANDLER = "Error executing scripting handler: ";
/**
* Before create entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param contentType the content type
* @param entry the entry
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse beforeCreateEntity(PostUriInfo uriInfo, String requestContentType, String contentType, ODataEntry entry,
Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.create.name();
String type = ODataHandlerTypes.before.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("requestContentType", requestContentType);
context.put("contentType", contentType);
context.put("entry", entry);
executeHandlers(handlers, context);
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* After create entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param contentType the content type
* @param entry the entry
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse afterCreateEntity(PostUriInfo uriInfo, String requestContentType, String contentType, ODataEntry entry,
Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.create.name();
String type = ODataHandlerTypes.after.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("requestContentType", requestContentType);
context.put("contentType", contentType);
context.put("entry", entry);
executeHandlers(handlers, context);
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* Checks if is using on create entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param contentType the content type
* @return true, if is using on create entity
*/
@Override
public boolean isUsingOnCreateEntity(PostUriInfo uriInfo, String requestContentType, String contentType) {
return isUsingEvent((UriInfo) uriInfo, ODataHandlerMethods.create.name(), ODataHandlerTypes.on.name());
}
/**
* Checks if is using after create entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param contentType the content type
* @return true, if is using after create entity
*/
@Override
public boolean isUsingAfterCreateEntity(PostUriInfo uriInfo, String requestContentType, String contentType) {
return isUsingEvent((UriInfo) uriInfo, ODataHandlerMethods.create.name(), ODataHandlerTypes.after.name());
}
/**
* On create entity.
*
* @param uriInfo the uri info
* @param content the content
* @param requestContentType the request content type
* @param contentType the content type
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse onCreateEntity(PostUriInfo uriInfo, InputStream content, String requestContentType, String contentType,
Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.create.name();
String type = ODataHandlerTypes.on.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("requestContentType", requestContentType);
context.put("contentType", contentType);
context.put("content", content);
String responseMessage = executeHandler(handlers, context);
ODataResponse response = EntityProvider.writeText(responseMessage);
return response;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* Forbid create entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param contentType the content type
* @return true, if successful
*/
@Override
public boolean forbidCreateEntity(PostUriInfo uriInfo, String requestContentType, String contentType) {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.create.name();
String type = ODataHandlerTypes.forbid.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
return handlers.size() > 0;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
}
return false;
}
/**
* Before update entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param merge the merge
* @param contentType the content type
* @param entry the entry
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse beforeUpdateEntity(PutMergePatchUriInfo uriInfo, String requestContentType, boolean merge, String contentType,
ODataEntry entry, Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.update.name();
String type = ODataHandlerTypes.before.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("requestContentType", requestContentType);
context.put("merge", merge);
context.put("contentType", contentType);
context.put("entry", entry);
executeHandlers(handlers, context);
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* After update entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param merge the merge
* @param contentType the content type
* @param entry the entry
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse afterUpdateEntity(PutMergePatchUriInfo uriInfo, String requestContentType, boolean merge, String contentType,
ODataEntry entry, Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.update.name();
String type = ODataHandlerTypes.after.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("requestContentType", requestContentType);
context.put("merge", merge);
context.put("contentType", contentType);
context.put("entry", entry);
executeHandlers(handlers, context);
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* Checks if is using on update entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param merge the merge
* @param contentType the content type
* @return true, if is using on update entity
*/
@Override
public boolean isUsingOnUpdateEntity(PutMergePatchUriInfo uriInfo, String requestContentType, boolean merge, String contentType) {
return isUsingEvent((UriInfo) uriInfo, ODataHandlerMethods.update.name(), ODataHandlerTypes.on.name());
}
/**
* On update entity.
*
* @param uriInfo the uri info
* @param content the content
* @param requestContentType the request content type
* @param merge the merge
* @param contentType the content type
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse onUpdateEntity(PutMergePatchUriInfo uriInfo, InputStream content, String requestContentType, boolean merge,
String contentType, Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.update.name();
String type = ODataHandlerTypes.on.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("requestContentType", requestContentType);
context.put("merge", merge);
context.put("contentType", contentType);
context.put("content", content);
String responseMessage = executeHandler(handlers, context);
ODataResponse response = EntityProvider.writeText(responseMessage);
return response;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* Forbid update entity.
*
* @param uriInfo the uri info
* @param requestContentType the request content type
* @param merge the merge
* @param contentType the content type
* @return true, if successful
*/
@Override
public boolean forbidUpdateEntity(PutMergePatchUriInfo uriInfo, String requestContentType, boolean merge, String contentType) {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.update.name();
String type = ODataHandlerTypes.forbid.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
return handlers.size() > 0;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
}
return false;
}
/**
* Before delete entity.
*
* @param uriInfo the uri info
* @param contentType the content type
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse beforeDeleteEntity(DeleteUriInfo uriInfo, String contentType, Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.delete.name();
String type = ODataHandlerTypes.before.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("contentType", contentType);
executeHandlers(handlers, context);
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* After delete entity.
*
* @param uriInfo the uri info
* @param contentType the content type
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse afterDeleteEntity(DeleteUriInfo uriInfo, String contentType, Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.delete.name();
String type = ODataHandlerTypes.after.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("contentType", contentType);
executeHandlers(handlers, context);
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* Checks if is using on delete entity.
*
* @param uriInfo the uri info
* @param contentType the content type
* @return true, if is using on delete entity
*/
@Override
public boolean isUsingOnDeleteEntity(DeleteUriInfo uriInfo, String contentType) {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.delete.name();
String type = ODataHandlerTypes.on.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
return handlers.size() > 0;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
}
return false;
}
/**
* On delete entity.
*
* @param uriInfo the uri info
* @param contentType the content type
* @param context the context
* @return the o data response
* @throws ODataException the o data exception
*/
@Override
public ODataResponse onDeleteEntity(DeleteUriInfo uriInfo, String contentType, Map context) throws ODataException {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.delete.name();
String type = ODataHandlerTypes.on.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
context.put("uriInfo", uriInfo);
context.put("contentType", contentType);
String responseMessage = executeHandler(handlers, context);
ODataResponse response = EntityProvider.writeText(responseMessage);
return response;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
} catch (Exception e) {
throw new ODataException(ERROR_EXECUTING_SCRIPTING_HANDLER + e.getMessage(), e);
}
return null;
}
/**
* Forbid delete entity.
*
* @param uriInfo the uri info
* @param contentType the content type
* @return true, if successful
*/
@Override
public boolean forbidDeleteEntity(DeleteUriInfo uriInfo, String contentType) {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
String method = ODataHandlerMethods.delete.name();
String type = ODataHandlerTypes.forbid.name();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
return handlers.size() > 0;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
}
return false;
}
/**
* Gets the name.
*
* @return the name
*/
@Override
public String getName() {
return DEFAULT_ODATA_EVENT_HANDLER_NAME;
}
/**
* Execute handlers.
*
* @param handlers the handlers
* @param context the context
*/
private void executeHandlers(List handlers, Map context) {
handlers.forEach(handler -> {
setHandlerParametersInContext(context, handler);
try {
executeHandlerByExecutor(context);
} catch (Exception e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
}
});
}
/**
* Execute handler.
*
* @param handlers the handlers
* @param context the context
* @return the string
* @throws Exception the exception
*/
private String executeHandler(List handlers, Map context) throws Exception {
if (handlers.size() > 0) {
ODataHandler handler = handlers.get(0);
setHandlerParametersInContext(context, handler);
Object response = executeHandlerByExecutor(context);
return response != null ? response.toString() : "Empty response.";
}
return "No response.";
}
/**
* Execute handler by executor.
*
* @param context the context
* @return the object
* @throws Exception the scripting exception
*/
private Object executeHandlerByExecutor(Map context) throws Exception {
String odataHandlerExecutorType = Configuration.get(DIRIGIBLE_ODATA_HANDLER_EXECUTOR_TYPE);
String odataHandlerExecutorOnEvent = Configuration.get(DIRIGIBLE_ODATA_HANDLER_EXECUTOR_ON_EVENT);
if (odataHandlerExecutorType != null && odataHandlerExecutorOnEvent != null) {
RepositoryPath path = new RepositoryPath(odataHandlerExecutorOnEvent);
return getJavascriptService().handleRequest(path.getSegments()[0], path.constructPathFrom(1), null, context, false);
}
RepositoryPath path = new RepositoryPath(DIRIGIBLE_ODATA_WRAPPER_MODULE_ON_EVENT);
return getJavascriptService().handleRequest(path.getSegments()[0], path.constructPathFrom(1), null, context, false);
}
/**
* Sets the handler parameters in context.
*
* @param context the context
* @param handler the handler
*/
private void setHandlerParametersInContext(Map context, ODataHandler handler) {
context.put("location", handler.getLocation());
context.put("namespace", handler.getNamespace());
context.put("name", handler.getName());
context.put("method", handler.getMethod());
context.put("type", handler.getType());
context.put("handler", handler.getHandler());
}
/**
* Checks if is using event.
*
* @param uriInfo the uri info
* @param method the method
* @param type the type
* @return true, if is using event
*/
private boolean isUsingEvent(UriInfo uriInfo, String method, String type) {
try {
String namespace = uriInfo.getTargetType()
.getNamespace();
String name = uriInfo.getTargetType()
.getName();
List handlers = ODataHandlerService.get()
.getByNamespaceNameMethodAndKind(namespace, name, method, type);
return handlers.size() > 0;
} catch (ODataException e) {
if (logger.isErrorEnabled()) {
logger.error(e.getMessage(), e);
}
}
return false;
}
/**
* Gets the javascript service.
*
* @return the javascript service
*/
public JavascriptService getJavascriptService() {
return JavascriptService.get();
}
}
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