com.cognitivemedicine.config.utils

Class ConfigUtils

java.lang.Object

com.cognitivemedicine.config.utils.ConfigUtils

public class ConfigUtils
extends Object

A class used to access the configuration properties for a context. The configuration properties contained by this class are first looked up into a properties file with the same name of the context. Then, the environment variables are scanned looking for any property for this context. The environment variables will overwrite any pre-existing property from the properties file.

Author:

esteban

Field Summary

Fields

Modifier and Type	Field and Description
private org.apache.commons.configuration.Configuration	baseConfiguration
private static Map<String,ConfigUtils>	INSTANCES
private static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ConfigUtils(org.apache.commons.configuration.Configuration baseConfiguration)

Method Summary

Modifier and Type	Method and Description
static void	clearConfigUtilsInstancesCache() Clears the cache of already initialized ConfigUtils.
boolean	containsKey(String key)
BigDecimal	getBigDecimal(String key)
BigDecimal	getBigDecimal(String key, BigDecimal defaultValue)
BigInteger	getBigInteger(String key)
BigInteger	getBigInteger(String key, BigInteger defaultValue)
boolean	getBoolean(String key)
boolean	getBoolean(String key, boolean defaultValue)
Boolean	getBoolean(String key, Boolean defaultValue)
byte	getByte(String key)
byte	getByte(String key, byte defaultValue)
Byte	getByte(String key, Byte defaultValue)
double	getDouble(String key)
double	getDouble(String key, double defaultValue)
Double	getDouble(String key, Double defaultValue)
float	getFloat(String key)
float	getFloat(String key, float defaultValue)
Float	getFloat(String key, Float defaultValue)
static ConfigUtils	getInstance(String context) Returns the ConfigUtils associated to a context.
int	getInt(String key)
int	getInt(String key, int defaultValue)
Integer	getInteger(String key, Integer defaultValue)
Iterator<String>	getKeys()
Iterator<String>	getKeys(String prefix)
List<Object>	getList(String key)
List<Object>	getList(String key, List<?> defaultValue)
long	getLong(String key)
long	getLong(String key, long defaultValue)
Long	getLong(String key, Long defaultValue)
short	getShort(String key)
short	getShort(String key, short defaultValue)
Short	getShort(String key, Short defaultValue)
String	getString(String key)
String	getString(String key, String defaultValue)
String[]	getStringArray(String key)
boolean	isEmpty()
void	setProperty(String key, String value)
org.apache.commons.configuration.Configuration	subset(String prefix)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

INSTANCES

private static Map<String,ConfigUtils> INSTANCES

baseConfiguration

private final org.apache.commons.configuration.Configuration baseConfiguration

Constructor Detail

ConfigUtils

private ConfigUtils(org.apache.commons.configuration.Configuration baseConfiguration)

Method Detail

getInstance

public static ConfigUtils getInstance(String context)

Returns the ConfigUtils associated to a context. If a ConfigUtils was already asked for a context, the cached ConfigUtils is returned. The initialization of a ConfigUtils first looks for a properties file with the name "${context}.properties" in the root level of the classpath. If the file is found, it is used as the data source for the configuration properties. No matter whether the corresponding properties files is found or not, the next step is to get any environment variables and system properties starting with the prefix "${context}" and add them to the context's properties (possibly overwriting a property defined in the file).

Parameters:

context -

Returns:

Throws:

ConfigurationException

clearConfigUtilsInstancesCache

public static void clearConfigUtilsInstancesCache()

Clears the cache of already initialized ConfigUtils.

subset

public org.apache.commons.configuration.Configuration subset(String prefix)

isEmpty

public boolean isEmpty()

containsKey

public boolean containsKey(String key)

getKeys

public Iterator<String> getKeys(String prefix)

getKeys

public Iterator<String> getKeys()

getBoolean

public boolean getBoolean(String key)

getBoolean

public boolean getBoolean(String key,
                          boolean defaultValue)

getBoolean

public Boolean getBoolean(String key,
                          Boolean defaultValue)

getByte

public byte getByte(String key)

getByte

public byte getByte(String key,
                    byte defaultValue)

getByte

public Byte getByte(String key,
                    Byte defaultValue)

getDouble

public double getDouble(String key)

getDouble

public double getDouble(String key,
                        double defaultValue)

getDouble

public Double getDouble(String key,
                        Double defaultValue)

getFloat

public float getFloat(String key)

getFloat

public float getFloat(String key,
                      float defaultValue)

getFloat

public Float getFloat(String key,
                      Float defaultValue)

getInt

public int getInt(String key)

getInt

public int getInt(String key,
                  int defaultValue)

getInteger

public Integer getInteger(String key,
                          Integer defaultValue)

getLong

public long getLong(String key)

getLong

public long getLong(String key,
                    long defaultValue)

getLong

public Long getLong(String key,
                    Long defaultValue)

getShort

public short getShort(String key)

getShort

public short getShort(String key,
                      short defaultValue)

getShort

public Short getShort(String key,
                      Short defaultValue)

getBigDecimal

public BigDecimal getBigDecimal(String key)

getBigDecimal

public BigDecimal getBigDecimal(String key,
                                BigDecimal defaultValue)

getBigInteger

public BigInteger getBigInteger(String key)

getBigInteger

public BigInteger getBigInteger(String key,
                                BigInteger defaultValue)

getString

public String getString(String key)

getString

public String getString(String key,
                        String defaultValue)

getStringArray

public String[] getStringArray(String key)

getList

public List<Object> getList(String key)

getList

public List<Object> getList(String key,
                            List<?> defaultValue)

setProperty

public void setProperty(String key,
                        String value)