/*
* FinTP - Financial Transactions Processing Application
* Copyright (C) 2013 Business Information Systems (Allevo) S.R.L.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
* or contact Allevo at : 031281 Bucuresti, 23C Calea Vitan, Romania,
* phone +40212554577, office@allevo.ro <mailto:office@allevo.ro>, www.allevo.ro.
*/
/**
*/
package ro.allevo.fintpws.resources;
import java.math.BigDecimal;
import javax.persistence.EntityManager;
import javax.persistence.EntityNotFoundException;
import javax.persistence.RollbackException;
import javax.persistence.TypedQuery;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriInfo;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;
import ro.allevo.fintpws.exceptions.ApplicationJsonException;
import ro.allevo.fintpws.model.QueueEntity;
import ro.allevo.fintpws.model.QueueTypeEntity;
import ro.allevo.fintpws.model.RoutingRuleEntity;
import ro.allevo.fintpws.model.RoutingSchemaEntity;
import ro.allevo.fintpws.util.JsonResponseWrapper;
/**
* @author remus
* @version $Revision: 1.0 $
*/
public class RoutingRuleResource {
/**
* Field logger
*/
private static final Logger logger = LogManager
.getLogger(RoutingRuleResource.class);
/**
* Field ERROR_MESSAGE_GET_ROUTING_RULE. (value is ""Error returning routing
* rule : "")
*/
static final String ERROR_MESSAGE_GET_ROUTING_RULE = "Error returning routing rule : ";
/**
* Field ERROR_MESSAGE_PUT_ROUTING_RULE. (value is ""Error updating routing
* rule : "")
*/
static final String ERROR_MESSAGE_PUT_ROUTING_RULE = "Error updating routing rule : ";
/**
* Field ERROR_MESSAGE_ROUT_RULE_NOT_FOUND. (value is ""Routing rule with
* name [%s] not found"")
*/
static final String ERROR_MESSAGE_ROUT_RULE_NOT_FOUND = "Routing rule with guid [%s] not found";
/**
* Field ERROR_REASON_JSON. (value is ""json"")
*/
static final String ERROR_REASON_JSON = "json";
/**
* Field ERROR_REASON_NUMBER_FORMAT. (value is ""number format"")
*/
static final String ERROR_REASON_NUMBER_FORMAT = "number format";
/**
* Field ERROR_REASON_CONFLICT. (value is ""conflict"")
*/
static final String ERROR_REASON_CONFLICT = "conflict";
/**
* Field ERROR_REASON_ROLLBACK. (value is ""rollback"")
*/
static final String ERROR_REASON_ROLLBACK = "rollback";
/**
* Field uriInfo
*/
private UriInfo uriInfo;
/**
* Field entityManagerConfig.
*/
private EntityManager entityManagerConfig;
/**
* the JPA entity
*/
private RoutingRuleEntity routingRuleEntity;
/**
* default constructor
*/
public RoutingRuleResource() {
}
/**
* guid
*/
private String guid;
/**
* Constructor for RoutingRuleResource.
*
* @param uriInfo
* UriInfo
* @param entityManagerConfig
* EntityManager
* @param guid
* String
*/
public RoutingRuleResource(UriInfo uriInfo,
EntityManager entityManagerConfig, String guid) {
this.uriInfo = uriInfo;
this.entityManagerConfig = entityManagerConfig;
this.guid = guid;
routingRuleEntity = null;
routingRuleEntity = RoutingRuleResource.findByGuid(entityManagerConfig,
guid);
}
/**
*
* @param entityManager
* EntityManager
* @param guid
* String
* @return RoutingRuleEntity
*/
public static RoutingRuleEntity findByGuid(EntityManager entityManager,
String guid) {
final TypedQuery<RoutingRuleEntity> query = entityManager
.createNamedQuery("RoutingRuleEntity.findByGuid",
RoutingRuleEntity.class);
try{
final java.util.List<RoutingRuleEntity> results = query.setParameter(
"guid", new Long(guid).longValue()).getResultList();
if (!results.isEmpty()) {
return results.get(0);
}
return null;
}catch(NumberFormatException nfe){
logger.error(String.format(ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
throw new EntityNotFoundException(String.format(
ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
}
}
/**
* GET Method : returns an application/json formatted routing rule
*
* @return JSONObject the routing rule
*/
@GET
@Produces(MediaType.APPLICATION_JSON)
public JSONObject getRoutingRule() {
if (null == routingRuleEntity) {
logger.error(String.format(ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
throw new EntityNotFoundException(String.format(
ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
}
try {
return RoutingRuleResource.asJson(routingRuleEntity,
uriInfo.getPath());
} catch (JSONException je) {
logger.error(ERROR_MESSAGE_GET_ROUTING_RULE + ERROR_REASON_JSON, je);
throw new ApplicationJsonException(je,
ERROR_MESSAGE_GET_ROUTING_RULE + ERROR_REASON_JSON,
Response.Status.INTERNAL_SERVER_ERROR.getStatusCode());
}
}
/**
* PUT method : updates the routing rule
*
* @param jsonEntity
* JSONObject the routing rule holding new values
* @return Response
*/
@PUT
@Consumes(MediaType.APPLICATION_JSON)
public Response updateRoutingRule(JSONObject jsonEntity) {
if (null == routingRuleEntity) {
logger.error(String.format(ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
throw new EntityNotFoundException(String.format(
ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
}
try {
if (jsonEntity.has("queue")) {
try {
QueueEntity queueEntity = QueueResource
.findByName(entityManagerConfig,
jsonEntity.getString("queue"));
routingRuleEntity.setQueueEntity(queueEntity);
} catch (NullPointerException e) {
// TODO: change reason
logger.error(ERROR_MESSAGE_PUT_ROUTING_RULE+ ERROR_REASON_JSON, e);
throw new ApplicationJsonException(e,
ERROR_MESSAGE_PUT_ROUTING_RULE + ERROR_REASON_JSON,
Response.Status.BAD_REQUEST.getStatusCode());
}
}
if (jsonEntity.has("schema")) {
try {
RoutingSchemaEntity rsEntity = RoutingSchemaResource
.findByName(entityManagerConfig,
jsonEntity.getString("schema"));
routingRuleEntity.setRoutingSchemaEntity(rsEntity);
} catch (NullPointerException e) {
// TODO: change reason
logger.error(ERROR_MESSAGE_PUT_ROUTING_RULE+ ERROR_REASON_JSON, e);
throw new ApplicationJsonException(e,
ERROR_MESSAGE_PUT_ROUTING_RULE + ERROR_REASON_JSON,
Response.Status.BAD_REQUEST.getStatusCode());
}
}
if (jsonEntity.has("action")) {
routingRuleEntity.setAction(jsonEntity.getString("action"));
}
if (jsonEntity.has("description")) {
routingRuleEntity.setDescription(jsonEntity
.getString("description"));
}
if (jsonEntity.has("messagecondition")) {
routingRuleEntity.setMessagecondition(jsonEntity.getString("messagecondition"));
}
if (jsonEntity.has("functioncondition")) {
routingRuleEntity.setFunctioncondition(jsonEntity.getString("functioncondition"));
}
if (jsonEntity.has("metadatacondition")) {
routingRuleEntity.setMetadatacondition(jsonEntity.getString("metadatacondition"));
}
if (jsonEntity.has("sequence")) {
routingRuleEntity.setSequence(new BigDecimal(jsonEntity
.getInt("sequence")));
}
if (jsonEntity.has("ruletype")) {
routingRuleEntity.setRuletype(new BigDecimal(jsonEntity
.getInt("ruletype")));
}
entityManagerConfig.getTransaction().begin();
entityManagerConfig.merge(routingRuleEntity);
entityManagerConfig.getTransaction().commit();
} catch (JSONException je) {
logger.error(ERROR_MESSAGE_PUT_ROUTING_RULE + ERROR_REASON_JSON, je);
throw new ApplicationJsonException(je,
ERROR_MESSAGE_PUT_ROUTING_RULE + ERROR_REASON_JSON,
Response.Status.BAD_REQUEST.getStatusCode());
} catch (NumberFormatException nfe) {
logger.error(ERROR_MESSAGE_PUT_ROUTING_RULE
+ ERROR_REASON_NUMBER_FORMAT, nfe);
throw new ApplicationJsonException(nfe,
ERROR_MESSAGE_PUT_ROUTING_RULE + ERROR_REASON_NUMBER_FORMAT,
Response.Status.BAD_REQUEST.getStatusCode());
} catch (RollbackException re) {
ApplicationJsonException.handleSQLException(re,
ERROR_MESSAGE_PUT_ROUTING_RULE, logger);
logger.error(
ERROR_MESSAGE_PUT_ROUTING_RULE + ERROR_REASON_ROLLBACK, re);
throw re;
} finally {
if (null != entityManagerConfig) {
entityManagerConfig.close();
}
}
return JsonResponseWrapper.getResponse(Response.Status.OK,
"routing rule updated");
}
/**
* DELETE method : deletes the routing rule
*
* @return Response
*/
@DELETE
public Response deleteRoutingRule() {
if (null == routingRuleEntity) {
logger.error(String.format(ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
throw new EntityNotFoundException(String.format(
ERROR_MESSAGE_ROUT_RULE_NOT_FOUND, guid));
}
try {
entityManagerConfig.getTransaction().begin();
entityManagerConfig.remove(routingRuleEntity);
entityManagerConfig.getTransaction().commit();
} finally {
if (null != entityManagerConfig) {
entityManagerConfig.close();
}
}
return JsonResponseWrapper.getResponse(Response.Status.OK,
"routing rule deleted");
}
/**
* Returns the resource formatted as json
*
* @param routingRuleEntity
* RoutingRuleEntity
* @param path
* String
* @throws JSONException
* @return JSONObject * @throws JSONException
*/
public static JSONObject asJson(RoutingRuleEntity routingRuleEntity,
String path) throws JSONException {
final JSONObject routingRuleAsJson = ApiResource.getMetaResource(path,
RoutingRuleResource.class);
routingRuleAsJson.put("guid", routingRuleEntity.getGuid())
.put("queue", routingRuleEntity.getQueueEntity().getName())
.put("description", routingRuleEntity.getDescription())
.put("messagecondition", routingRuleEntity.getMessagecondition())
.put("functioncondition", routingRuleEntity.getFunctioncondition())
.put("metadatacondition", routingRuleEntity.getMetadatacondition())
.put("action", routingRuleEntity.getAction())
.put("schema", routingRuleEntity.getRoutingSchemaEntity().getName())
.put("sequence", routingRuleEntity.getSequence())
.put("ruletype", routingRuleEntity.getRuletype());
return routingRuleAsJson;
}
/**
* Method toString.
*
* @return String
*/
public String toString() {
return String.valueOf(routingRuleEntity.getGuid());
}
}