rapture.config

Enum MultiValueConfigLoader

java.lang.Object

java.lang.Enum<MultiValueConfigLoader>

rapture.config.MultiValueConfigLoader

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<MultiValueConfigLoader>

public enum MultiValueConfigLoader
extends java.lang.Enum<MultiValueConfigLoader>

Given a concept like "What is the URL for MongoDB", this class provides a concrete implementation on how to get at that value.

Basically a request comes in for a value like "MONGODB-default" or "MONGODB-primary"

We resolve this like the following (and in this order)

1. Look for a -D property of the same name, all caps (i.e. toUpper)

2. Look for an environment variable of the same name, all caps (i.e. toUpper)

3. Look for a file using the discovery path in ConfigFileReader

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getConfig(java.lang.String configName)
static java.lang.String	getConfig(java.lang.String configName, java.lang.String defaultValue)
static java.util.Set<java.lang.String>	getConfigKeys(java.lang.String primary)
static void	setEnvReader(ValueReader reader)
static void	setSysPropReader(ValueReader reader)
static MultiValueConfigLoader	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static MultiValueConfigLoader[]	values() Returns an array containing the constants of this enum type, in the order they are declared.
static void	writeConfig(java.lang.String configName, java.lang.String value) By default attempt to store this in the FILE implementation, as that is the only one known to be persistent.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final MultiValueConfigLoader INSTANCE

Method Detail

values

public static MultiValueConfigLoader[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MultiValueConfigLoader c : MultiValueConfigLoader.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static MultiValueConfigLoader valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

setEnvReader

public static void setEnvReader(ValueReader reader)

setSysPropReader

public static void setSysPropReader(ValueReader reader)

getConfig

public static java.lang.String getConfig(java.lang.String configName,
                                         java.lang.String defaultValue)

writeConfig

public static void writeConfig(java.lang.String configName,
                               java.lang.String value)

By default attempt to store this in the FILE implementation, as that is the only one known to be persistent.

Write this into the first file found, or create a new file at the last search point.

Parameters:

configName -

value -

getConfig

public static java.lang.String getConfig(java.lang.String configName)

getConfigKeys

public static java.util.Set<java.lang.String> getConfigKeys(java.lang.String primary)