/** @see EtherstubHelper#createEtherstub(java.lang.String, boolean) */
@Override
public void createEtherstub(String name, boolean temporary) throws EtherstubException {
int persitent_type = checkPersistenceType(temporary);
logger.info("Trying to create etherstub : " + name + ", temporary: " + temporary);
int rc = handle.create_etherstub(name, persitent_type);
if (rc == XbowStatus.XBOW_STATUS_TOO_LONG_NAME.ordinal()) {
throw new TooLongEtherstubNameException(
"Etherstub couldn't be created as the name was too long");
} else if (rc == XbowStatus.XBOW_STATUS_INVALID_NAME.ordinal()) {
throw new InvalidEtherstubNameException(
"Etherstub couldn't be created as the name was incorrect");
} else if (rc != XbowStatus.XBOW_STATUS_OK.ordinal()) {
throw new EtherstubException("Etherstub creation failed.");
}
logger.debug("Etherstub : " + name + " sucessfully created");
}
/** @see EtherstubHelper#getEtherstubNames() */
@Override
public String[] getEtherstubNames() throws EtherstubException {
logger.debug("Trying to read names of existing etherstubs");
Pointer pointer = handle.get_etherstub_names();
if (pointer != null) {
String[] array = pointer.getStringArray(0);
handle.free_char_array(pointer);
return (array != null) ? array : new String[] {};
} else {
return new String[] {};
}
}
/**
* @see EtherstubHelper#getEtherstubProperty(java.lang.String,
* agh.msc.xbowbase.etherstub.enums.EtherstubProperties)
*/
@Override
public void setEtherstubProperty(String name, LinkProperties property, String value)
throws EtherstubException {
logger.debug(
"Trying to set etherstub's : " + name + ", property : " + property + " value : " + value);
int returnValue = handle.set_etherstub_property(name, property.toString(), value);
if (returnValue == XbowStatus.XBOW_STATUS_OK.ordinal()) {
return;
} else if (returnValue == XbowStatus.XBOW_STATUS_INVALID_NAME.ordinal()) {
throw new InvalidEtherstubNameException("Invalid etherstub name: " + name);
} else if (returnValue == XbowStatus.XBOW_STATUS_OPERATION_FAILURE.ordinal()) {
throw new EtherstubException("Unable to set property " + property);
} else {
throw new EtherstubException("Unknown error while setting property " + property);
}
}
/**
* @see EtherstubHelper#getEtherstubProperty(java.lang.String,
* agh.msc.xbowbase.etherstub.enums.EtherstubProperties)
*/
@Override
public String getEtherstubProperty(String name, LinkProperties property)
throws EtherstubException {
logger.debug("Trying to read etherstub's : " + name + ", property : " + property);
Pointer p = handle.get_etherstub_property(name, property.toString());
return getStringFromPointer(p);
}
/**
* @see EtherstubHelper#getEtherstubStatistic(java.lang.String,
* agh.msc.xbowbase.etherstub.enums.EtherstubStatistics)
*/
@Override
public String getEtherstubStatistic(String name, LinkStatistics statistic)
throws EtherstubException {
logger.debug("Trying to read etherstub's : " + name + ", statistic : " + statistic);
Pointer p = handle.get_etherstub_statistic(name, statistic.toString());
return getStringFromPointer(p);
}
/**
* @see EtherstubHelper#getEtherstubParameter(java.lang.String,
* agh.msc.xbowbase.etherstub.enums.EtherstubParameters)
*/
@Override
public String getEtherstubParameter(String name, LinkParameters parameter)
throws EtherstubException {
logger.debug("Trying to read etherstub's : " + name + ", parameter : " + parameter);
Pointer p = handle.get_etherstub_parameter(name, parameter.toString());
return getStringFromPointer(p);
}
/** @param libraryPath */
public JNAEtherstubHelper(String libraryPath) {
String filePath = libraryPath + File.separator + LIB_NAME;
logger.info("Loading Crossbow native library (" + filePath + ")");
handle = (EtherstubHandle) Native.loadLibrary(filePath, EtherstubHandle.class);
logger.info("Crossbow native library loaded!");
handle.init();
}
/** @see EtherstubHelper#deleteEtherstub(java.lang.String, boolean) */
@Override
public void deleteEtherstub(String name, boolean temporary) throws EtherstubException {
int persitent_type = checkPersistenceType(temporary);
logger.info("Trying to remove etherstub : " + name + ", temporary: " + temporary);
int rc = handle.delete_etherstub(name, persitent_type);
if (rc == XbowStatus.XBOW_STATUS_INVALID_NAME.ordinal()) {
throw new InvalidEtherstubNameException(
"Etherstub couldn't be removed as the name was incorrect");
} else if (rc != XbowStatus.XBOW_STATUS_OK.ordinal()) {
throw new EtherstubException("Etherstub deletion failed.");
}
}
/**
* @brief Gets String value from Pointer(JNA) variable Method return string on which Pointer p
* points and frees the memory allocated by the library
* @param p Pointer from the JNA library
* @return String on which pointer points
*/
private String getStringFromPointer(Pointer p) {
String value = (p != null) ? p.getString(0) : null;
handle.free_char_string(p);
return value;
}
