de.julielab.xmlData.config

Class ConfigReader

java.lang.Object

de.julielab.xmlData.config.ConfigReader

public class ConfigReader
extends Object

This class reads an xml configuration file, containing the definition of a database connection and the fields used in the database. It provides those definitions as specialized objects.

Author:

hellrich

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_DEFINITION
static String	XPATH_ACTIVE_DB
static String	XPATH_ACTIVE_PG_SCHEMA
static String	XPATH_ACTIVE_TABLE_SCHEMA
static String	XPATH_CONF_DB
static String	XPATH_CONF_DBS
static String	XPATH_CONF_SCHEMA
static String	XPATH_CONF_SCHEMAS
static String	XPATH_MAX_CONNS

Constructor Summary

Constructors

Constructor and Description
ConfigReader(InputStream def)

Method Summary

Modifier and Type	Method and Description
protected static byte[][]	extractConfigData(byte[] confData) Retrieves XML elements (determined by the used path) from the configuration.
String	getActiveDataSchema()
String	getActiveDataTable()
String	getActiveSchemaName()
DBConfig	getDatabaseConfig() Accessing the Database Configuration
FieldConfigurationManager	getFieldConfigs() Accessing the Field Definitions.
byte[]	getMergedConfigData()
List<String>	getTableSchemaNames()
protected static byte[]	mergeConfigData(byte[] defaultConfData, byte[] userConfData) Inserts the user schemes into the default configuration.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_DEFINITION

public static final String DEFAULT_DEFINITION

See Also:

Constant Field Values

XPATH_ACTIVE_TABLE_SCHEMA

public static final String XPATH_ACTIVE_TABLE_SCHEMA

See Also:

Constant Field Values

XPATH_ACTIVE_DB

public static final String XPATH_ACTIVE_DB

See Also:

Constant Field Values

XPATH_ACTIVE_PG_SCHEMA

public static final String XPATH_ACTIVE_PG_SCHEMA

See Also:

Constant Field Values

XPATH_MAX_CONNS

public static final String XPATH_MAX_CONNS

See Also:

Constant Field Values

XPATH_CONF_DBS

public static final String XPATH_CONF_DBS

See Also:

Constant Field Values

XPATH_CONF_SCHEMAS

public static final String XPATH_CONF_SCHEMAS

See Also:

Constant Field Values

XPATH_CONF_DB

public static final String XPATH_CONF_DB

See Also:

Constant Field Values

XPATH_CONF_SCHEMA

public static final String XPATH_CONF_SCHEMA

See Also:

Constant Field Values

Constructor Detail

ConfigReader

public ConfigReader(InputStream def)

Method Detail

mergeConfigData

protected static byte[] mergeConfigData(byte[] defaultConfData,
                                        byte[] userConfData)
                                 throws com.ximpleware.VTDException,
                                        IOException

Inserts the user schemes into the default configuration. This makes all data available in one place, which is useful for referencing default values from within a user configuration.

Parameters:

defaultConfData - - prepared default configuration file

userConfData - - prepared user specific configuration file

Returns:

- the merged configuration

Throws:

com.ximpleware.VTDException

IOException

extractConfigData

protected static byte[][] extractConfigData(byte[] confData)
                                     throws IOException,
                                            com.ximpleware.VTDException

Retrieves XML elements (determined by the used path) from the configuration.

Parameters:

confData - - prepared XML

Returns:

- the retrieved element

Throws:

IOException

com.ximpleware.VTDException

getDatabaseConfig

public DBConfig getDatabaseConfig()

Accessing the Database Configuration

Returns:

- DatabaseConfig Object

getFieldConfigs

public FieldConfigurationManager getFieldConfigs()

Accessing the Field Definitions.

The returned map consists of pairs in the form (schemaName, fieldConfig) where schemaName is the name of the table schema represented by fieldConfig.

Returns:

- A map containing all table schemas in the default and in the user configuration.

getActiveDataTable

public String getActiveDataTable()

Returns:

the activeDataTable

getActiveDataSchema

public String getActiveDataSchema()

getActiveSchemaName

public String getActiveSchemaName()

Returns:

the activeSchemaName

getMergedConfigData

public byte[] getMergedConfigData()

Returns:

the mergedConfigData

getTableSchemaNames

public List<String> getTableSchemaNames()