fixed broken query in ConfigService

This commit is contained in:
2018-11-25 15:14:57 +01:00
parent 9b8284a2cf
commit 350d045eb0

View File

@ -1,209 +1,210 @@
package de.muehlencord.shared.account.business.config.boundary;
import de.muehlencord.shared.account.business.account.entity.Account;
import de.muehlencord.shared.account.business.account.entity.AccountEntity;
import de.muehlencord.shared.account.business.application.entity.ApplicationEntity;
import de.muehlencord.shared.account.business.config.entity.ConfigEntity;
import de.muehlencord.shared.account.business.config.entity.ConfigEntityPK;
import de.muehlencord.shared.account.business.config.entity.ConfigException;
import de.muehlencord.shared.account.util.AccountPU;
import java.io.Serializable;
import java.util.List;
import java.util.Optional;
import javax.ejb.Lock;
import javax.ejb.LockType;
import javax.ejb.Singleton;
import javax.ejb.Startup;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.transaction.Transactional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @author joern.muehlencord
*/
@Singleton
@Startup
public class ConfigService implements Serializable {
private static final long serialVersionUID = -3195224653632853003L;
private static final Logger LOGGER = LoggerFactory.getLogger(ConfigService.class);
@Inject
@AccountPU
EntityManager em;
@Inject
ApplicationEntity application;
/**
* returns global config key which is not assigned to any. If more than one
* value is defined for the given key, the key assigned to system is
* returned. If more than one key is defined but system key is not defined,
* an exception is thrown.
*
* @param configKey the key to return
* @return the configValue belonging to the given configKey
* @throws
* de.muehlencord.shared.account.business.config.entity.ConfigException if
* more than one value is defined for the given key but none of the values
* is defined for the system user
*/
public String getConfigValue(String configKey) throws ConfigException {
Query query = em.createNamedQuery("ConfigEntity.findByConfigKey");
query.setParameter("application", application);
query.setParameter("configKey", configKey);
List<ConfigEntity> configList = query.getResultList();
if ((configList == null) || (configList.isEmpty())) {
// key is not found in the database at all
return null;
} else if (configList.size() == 1) {
// exact one element found, return this one
return configList.get(0).getConfigValue();
} else {
// if more than one result found, return the one which is assigned to system if present
// if not present, throw exception
Optional<ConfigEntity> firstItem = configList.stream()
.filter(config -> config.getConfigPK().getConfigKeyAccount().getUsername().equals("system"))
.findFirst();
if (firstItem.isPresent()) {
return firstItem.get().getConfigValue();
} else {
throw new ConfigException("ConfigKey " + configKey + " not unique and system value not defined");
}
}
}
public String getConfigValue(String configKey, String defaultValue) throws ConfigException {
return getConfigValue(configKey, defaultValue, false);
}
@Transactional
@Lock(LockType.WRITE)
public String getConfigValue(String configKey, String defaultValue, boolean storeDefaultValue) throws ConfigException {
// get configValue as usual
String configValue = getConfigValue(configKey);
// if config value is not found null has been returned
// in this case the value to return is the defaultValue
if (configValue == null) {
configValue = defaultValue;
}
// check if the default value should be stored in the database
if (storeDefaultValue) {
AccountEntity account = getAccount("system");
updateConfigValue(configKey, account, configValue);
}
return defaultValue;
}
public String getConfigValue(String configKey, Account account, boolean fallbackToSystem) throws ConfigException {
Query query = em.createNamedQuery("ConfigEntity.findByConfigKeyAndAccount");
query.setParameter("configKey", configKey);
query.setParameter("account", account);
List<ConfigEntity> configList = query.getResultList();
if ((configList == null) || (configList.isEmpty())) {
// fallback to default / system value
if (fallbackToSystem) {
return getConfigValue(configKey);
} else {
return null;
}
} else if (configList.size() == 1) {
// exact one element found, return this one
return configList.get(0).getConfigValue();
} else {
// more than one value must not happen - this is not possible per the defintion of the datamodel
throw new ConfigException("Cannot have more than one value for the the given key " + configKey + " and the given account " + account.getUsername());
}
}
@Transactional
@Lock(LockType.WRITE)
public String getConfigValue(String configKey, String defaultValue, boolean storeDefaultValue, Account account, boolean fallbackToSystem) throws ConfigException {
String configValue = getConfigValue(configKey, account, fallbackToSystem);
if (configValue == null) {
// value not found for given account and if allowed also not found for system user
configValue = defaultValue;
}
// check if the default value should be stored in the database
if (storeDefaultValue) {
updateConfigValue(configKey, account, configValue);
}
return configValue;
}
@Transactional
@Lock(LockType.WRITE)
public boolean updateConfigValue(String configKey, String configValue) throws ConfigException {
Account account = getAccount("system");
return updateConfigValue(configKey, account, configValue);
}
@Transactional
@Lock(LockType.WRITE)
public boolean updateConfigValue(String configKey, String accountName, String configValue) {
Account account = getAccount(accountName);
if (accountName == null) {
return false;
}
if (account == null) {
LOGGER.error("Account for usreName {} not found", accountName);
return false;
}
return updateConfigValue(configKey, account, configValue);
}
@Transactional
@Lock(LockType.WRITE)
public boolean updateConfigValue(String configKey, Account account, String configValue) {
if ((configKey == null) || (configKey.equals("")) || (configValue == null) || (configValue.equals(""))) {
// null or empty key / values are not possible
return false;
}
if (account == null) {
LOGGER.error("Account must not be null, not updating");
return false;
}
AccountEntity accountEntity = getAccount(account.getUsername());
ConfigEntityPK pk = new ConfigEntityPK(application, configKey, accountEntity);
ConfigEntity currentEntity = em.find(ConfigEntity.class, pk);
if (currentEntity == null) {
currentEntity = new ConfigEntity(pk);
currentEntity.setConfigValue(configValue);
em.persist(currentEntity);
return true; // config item created - udpate performed
} else {
if ((currentEntity.getConfigValue() != null) && (currentEntity.getConfigValue().equals(configValue))) {
// value is the same - no update
return false;
} else {
currentEntity.setConfigValue(configValue);
em.merge(currentEntity);
return true;
}
}
}
private AccountEntity getAccount(String accountName) {
Query query = em.createNamedQuery("AccountEntity.findByUsername");
query.setParameter("username", accountName);
List<AccountEntity> accountList = query.getResultList();
if ((accountList == null) || (accountList.isEmpty())) {
return null;
} else {
return accountList.get(0);
}
}
}
package de.muehlencord.shared.account.business.config.boundary;
import de.muehlencord.shared.account.business.account.entity.Account;
import de.muehlencord.shared.account.business.account.entity.AccountEntity;
import de.muehlencord.shared.account.business.application.entity.ApplicationEntity;
import de.muehlencord.shared.account.business.config.entity.ConfigEntity;
import de.muehlencord.shared.account.business.config.entity.ConfigEntityPK;
import de.muehlencord.shared.account.business.config.entity.ConfigException;
import de.muehlencord.shared.account.util.AccountPU;
import java.io.Serializable;
import java.util.List;
import java.util.Optional;
import javax.ejb.Lock;
import javax.ejb.LockType;
import javax.ejb.Singleton;
import javax.ejb.Startup;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.transaction.Transactional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @author joern.muehlencord
*/
@Singleton
@Startup
public class ConfigService implements Serializable {
private static final long serialVersionUID = -3195224653632853003L;
private static final Logger LOGGER = LoggerFactory.getLogger(ConfigService.class);
@Inject
@AccountPU
EntityManager em;
@Inject
ApplicationEntity application;
/**
* returns global config key which is not assigned to any. If more than one
* value is defined for the given key, the key assigned to system is
* returned. If more than one key is defined but system key is not defined,
* an exception is thrown.
*
* @param configKey the key to return
* @return the configValue belonging to the given configKey
* @throws
* de.muehlencord.shared.account.business.config.entity.ConfigException if
* more than one value is defined for the given key but none of the values
* is defined for the system user
*/
public String getConfigValue(String configKey) throws ConfigException {
Query query = em.createNamedQuery("ConfigEntity.findByConfigKey");
query.setParameter("application", application);
query.setParameter("configKey", configKey);
List<ConfigEntity> configList = query.getResultList();
if ((configList == null) || (configList.isEmpty())) {
// key is not found in the database at all
return null;
} else if (configList.size() == 1) {
// exact one element found, return this one
return configList.get(0).getConfigValue();
} else {
// if more than one result found, return the one which is assigned to system if present
// if not present, throw exception
Optional<ConfigEntity> firstItem = configList.stream()
.filter(config -> config.getConfigPK().getConfigKeyAccount().getUsername().equals("system"))
.findFirst();
if (firstItem.isPresent()) {
return firstItem.get().getConfigValue();
} else {
throw new ConfigException("ConfigKey " + configKey + " not unique and system value not defined");
}
}
}
public String getConfigValue(String configKey, String defaultValue) throws ConfigException {
return getConfigValue(configKey, defaultValue, false);
}
@Transactional
@Lock(LockType.WRITE)
public String getConfigValue(String configKey, String defaultValue, boolean storeDefaultValue) throws ConfigException {
// get configValue as usual
String configValue = getConfigValue(configKey);
// if config value is not found null has been returned
// in this case the value to return is the defaultValue
if (configValue == null) {
configValue = defaultValue;
}
// check if the default value should be stored in the database
if (storeDefaultValue) {
AccountEntity account = getAccount("system");
updateConfigValue(configKey, account, configValue);
}
return defaultValue;
}
public String getConfigValue(String configKey, Account account, boolean fallbackToSystem) throws ConfigException {
Query query = em.createNamedQuery("ConfigEntity.findByConfigKeyAndAccount");
query.setParameter("application", application);
query.setParameter("configKey", configKey);
query.setParameter("account", account);
List<ConfigEntity> configList = query.getResultList();
if ((configList == null) || (configList.isEmpty())) {
// fallback to default / system value
if (fallbackToSystem) {
return getConfigValue(configKey);
} else {
return null;
}
} else if (configList.size() == 1) {
// exact one element found, return this one
return configList.get(0).getConfigValue();
} else {
// more than one value must not happen - this is not possible per the defintion of the datamodel
throw new ConfigException("Cannot have more than one value for the the given key " + configKey + " and the given account " + account.getUsername());
}
}
@Transactional
@Lock(LockType.WRITE)
public String getConfigValue(String configKey, String defaultValue, boolean storeDefaultValue, Account account, boolean fallbackToSystem) throws ConfigException {
String configValue = getConfigValue(configKey, account, fallbackToSystem);
if (configValue == null) {
// value not found for given account and if allowed also not found for system user
configValue = defaultValue;
}
// check if the default value should be stored in the database
if (storeDefaultValue) {
updateConfigValue(configKey, account, configValue);
}
return configValue;
}
@Transactional
@Lock(LockType.WRITE)
public boolean updateConfigValue(String configKey, String configValue) throws ConfigException {
Account account = getAccount("system");
return updateConfigValue(configKey, account, configValue);
}
@Transactional
@Lock(LockType.WRITE)
public boolean updateConfigValue(String configKey, String accountName, String configValue) {
Account account = getAccount(accountName);
if (accountName == null) {
return false;
}
if (account == null) {
LOGGER.error("Account for usreName {} not found", accountName);
return false;
}
return updateConfigValue(configKey, account, configValue);
}
@Transactional
@Lock(LockType.WRITE)
public boolean updateConfigValue(String configKey, Account account, String configValue) {
if ((configKey == null) || (configKey.equals("")) || (configValue == null) || (configValue.equals(""))) {
// null or empty key / values are not possible
return false;
}
if (account == null) {
LOGGER.error("Account must not be null, not updating");
return false;
}
AccountEntity accountEntity = getAccount(account.getUsername());
ConfigEntityPK pk = new ConfigEntityPK(application, configKey, accountEntity);
ConfigEntity currentEntity = em.find(ConfigEntity.class, pk);
if (currentEntity == null) {
currentEntity = new ConfigEntity(pk);
currentEntity.setConfigValue(configValue);
em.persist(currentEntity);
return true; // config item created - udpate performed
} else {
if ((currentEntity.getConfigValue() != null) && (currentEntity.getConfigValue().equals(configValue))) {
// value is the same - no update
return false;
} else {
currentEntity.setConfigValue(configValue);
em.merge(currentEntity);
return true;
}
}
}
private AccountEntity getAccount(String accountName) {
Query query = em.createNamedQuery("AccountEntity.findByUsername");
query.setParameter("username", accountName);
List<AccountEntity> accountList = query.getResultList();
if ((accountList == null) || (accountList.isEmpty())) {
return null;
} else {
return accountList.get(0);
}
}
}