/**
* Invoke an operation for the given environment.
*
* @param targetEnv The target JE environment. May be null if the environment is not open.
* @param actionName operation name.
* @param params operation parameters. May be null.
* @param signature operation signature. May be null.
* @return the operation result
*/
public Object invoke(
Environment targetEnv, String actionName, Object[] params, String[] signature)
throws MBeanException {
/* Sanity checking. */
if (actionName == null) {
throw new IllegalArgumentException("actionName cannot be null");
}
try {
if (targetEnv != null) {
if (actionName.equals(OP_CLEAN)) {
int numFiles = targetEnv.cleanLog();
return new Integer(numFiles);
} else if (actionName.equals(OP_EVICT)) {
targetEnv.evictMemory();
return null;
} else if (actionName.equals(OP_CHECKPOINT)) {
CheckpointConfig config = new CheckpointConfig();
if ((params != null) && (params.length > 0)) {
Boolean force = (Boolean) params[0];
config.setForce(force.booleanValue());
}
targetEnv.checkpoint(config);
return null;
} else if (actionName.equals(OP_SYNC)) {
targetEnv.sync();
return null;
} else if (actionName.equals(OP_ENV_STAT)) {
return targetEnv.getStats(getStatsConfig(params));
} else if (actionName.equals(OP_LOCK_STAT)) {
return targetEnv.getLockStats(getStatsConfig(params));
} else if (actionName.equals(OP_TXN_STAT)) {
return targetEnv.getTransactionStats(getStatsConfig(params));
} else if (actionName.equals(OP_DB_NAMES)) {
return targetEnv.getDatabaseNames();
} else if (actionName.equals(OP_DB_STAT)) {
return getDatabaseStats(targetEnv, params);
}
}
return new IllegalArgumentException("actionName: " + actionName + " is not valid");
} catch (DatabaseException e) {
/*
* Add both the message and the exception for easiest
* deciphering of the problem. Sometimes the original exception
* stacktrace gets hidden in server logs.
*/
throw new MBeanException(e, e.getMessage());
}
}
