org.gramar.util

Class PropertiesHelper

java.lang.Object

org.gramar.util.PropertiesHelper

public class PropertiesHelper
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	PROPERTY_GRAMAR_ID
static String	PROPERTY_LIST_SAMPLES
static String	PROPERTY_MODEL
static String	PROPERTY_PROPERTY_FILE
static String	PROPERTY_SAMPLE_NAME

Constructor Summary

Constructors

Constructor and Description
PropertiesHelper(String[] args)

Method Summary

Methods

Modifier and Type	Method and Description
static List<String>	getIndexedValues(Properties properties, String propertyNamePrefix) Returns all values whose corresponding property name starts with the given prefix.
Properties	getProperties()
String	getString(String propertyName) Returns the value of the given property name as specified in either the command line arguments or the specified property file.
String	getString(String propertyName, String defaultValue) Returns the value of the given property name as specified in either the command line arguments or the specified property file.
boolean	hasValue(String propertyName) Answers whether the given property name was provided in the command line arguments or in the property file Note this class's static constants for common property names for convenience.
void	setProperty(String key, String value, boolean override) Set the value of a property.

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_PROPERTY_FILE

public static final String PROPERTY_PROPERTY_FILE

See Also:

Constant Field Values

PROPERTY_GRAMAR_ID

public static final String PROPERTY_GRAMAR_ID

See Also:

Constant Field Values

PROPERTY_MODEL

public static final String PROPERTY_MODEL

See Also:

Constant Field Values

PROPERTY_LIST_SAMPLES

public static final String PROPERTY_LIST_SAMPLES

See Also:

Constant Field Values

PROPERTY_SAMPLE_NAME

public static final String PROPERTY_SAMPLE_NAME

See Also:

Constant Field Values

Constructor Detail

PropertiesHelper

public PropertiesHelper(String[] args)
                 throws GramarException

Throws:

GramarException

Method Detail

getString

public String getString(String propertyName)
                 throws GramarException

Returns the value of the given property name as specified in either the command line arguments or the specified property file. If the property is not present then throw an exception. Note this class's static constants for common property names for convenience.

Parameters:

propertyName -

Returns:

Throws:

GramarException

hasValue

public boolean hasValue(String propertyName)

Answers whether the given property name was provided in the command line arguments or in the property file Note this class's static constants for common property names for convenience.

Parameters:

propertyName -

Returns:

true/false depending on whether a value exists for the given property name

Throws:

GramarException

getString

public String getString(String propertyName,
               String defaultValue)

Returns the value of the given property name as specified in either the command line arguments or the specified property file. If the property is not present then return the given defaultValue. Note this class's static constants for common property names for convenience.

Parameters:

propertyName -

Returns:

getIndexedValues

public static List<String> getIndexedValues(Properties properties,
                            String propertyNamePrefix)

Returns all values whose corresponding property name starts with the given prefix. For example, a propertyNamePrefix of "a.b." would return values for properties "a.b.1", "a.b.2" and "a.b.c".

Parameters:

properties -

propertyNamePrefix -

Returns:

getProperties

public Properties getProperties()

setProperty

public void setProperty(String key,
               String value,
               boolean override)

Set the value of a property. If the property is already set and override is false, do not override the existing value.

Parameters:

key -

value -