org.opennms.netmgt.vmmgr
Class DatabaseChecker

java.lang.Object
  org.opennms.netmgt.vmmgr.DatabaseChecker

public class DatabaseChecker
extends Object

This is the singleton class used to load the OpenNMS database configuration from the opennms-database.xml. This provides convenience methods to create database connections to the database configured in this default xml

Note: Users of this class should make sure the init() is called before calling any other method to ensure the config is loaded before accessing other convenience methods

Author:

Brian Weaver

Constructor Summary

protected	DatabaseChecker() Load the config from the default config file and create the singleton instance of this factory.
protected	DatabaseChecker(String configFile) Protected constructor

Method Summary

void	check() Check whether the data sources in opennms-datasources.xml are valid.
static void	main(String[] argv) main

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DatabaseChecker

protected DatabaseChecker(String configFile)
                   throws IOException,
                          org.exolab.castor.xml.MarshalException,
                          org.exolab.castor.xml.ValidationException,
                          ClassNotFoundException

Protected constructor

Parameters:

configFile - a String object.

Throws:

IOException - Thrown if the specified config file cannot be read

org.exolab.castor.xml.MarshalException - Thrown if the file does not conform to the schema.

org.exolab.castor.xml.ValidationException - Thrown if the contents do not match the required schema.

IOException - if any.

org.exolab.castor.xml.MarshalException - if any.

org.exolab.castor.xml.ValidationException - if any.

ClassNotFoundException - if any.

DatabaseChecker

protected DatabaseChecker()
                   throws IOException,
                          org.exolab.castor.xml.MarshalException,
                          org.exolab.castor.xml.ValidationException,
                          ClassNotFoundException

Load the config from the default config file and create the singleton instance of this factory.

Throws:

IOException - Thrown if the specified config file cannot be read

org.exolab.castor.xml.MarshalException - Thrown if the file does not conform to the schema.

org.exolab.castor.xml.ValidationException - Thrown if the contents do not match the required schema.

IOException - if any.

org.exolab.castor.xml.MarshalException - if any.

org.exolab.castor.xml.ValidationException - if any.

ClassNotFoundException - if any.

Method Detail

check

public void check()
           throws MissingDataSourceException,
                  InvalidDataSourceException

Check whether the data sources in opennms-datasources.xml are valid.

Throws:

MissingDataSourceException - A required data source was not found in opennms-datasources.xml.

InvalidDataSourceException - A required data source could not be connected to.

main

public static void main(String[] argv)
                 throws Exception

main

Parameters:

argv - an array of String objects.

Throws:

Exception - if any.