AppConfig (JavaLite - ActiveJDBC Root 1.4.13-SNAPSHOT API)

java.lang.Object
- org.javalite.app_config.AppConfig

All Implemented Interfaces:

Map<String,String>
```
public class AppConfig
extends Object
implements Map<String,String>
```
Allows configuration of applications that is specific for different deployment environments.
Applications could have environment-specific files, whose names follow this pattern: environment.properties, where environment is a name of a deployment environment, such as "development", "staging", "production", etc. You can also provide a global file, properties from which will be loaded in all environments: global.properties.
In all cases the files need to be on the classpath under directory/package /app_config.
Environment-specific file will have an "environment" part of the file name match to an environment variable called "ACTIVE_ENV". Such configuration is easy to achieve in Unix shell:
export ACTIVE_ENV=test
If environment variable ACTIVE_ENV is missing, it defaults to "development".
You can also provide an environment as a system property active_env. System property overrides environment variable ACTIVE_ENV

Author:

Igor Polevoy

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K,V>

Constructor Summary

Constructors
Constructor and Description

AppConfig()

Constructors
Constructor and Description
`AppConfig()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static String`	`activeEnv()` Returns current environment name as defined by environment variable `ACTIVE_ENV`.
`void`	`clear()`
`boolean`	`containsKey(Object key)`
`boolean`	`containsValue(Object value)`
`Set<Map.Entry<String,String>>`	`entrySet()`
`String`	`get(Object key)`
`static Map<String,String>`	`getAllProperties()`
`static Property`	`getAsProperty(String key)` Returns property instance corresponding to key.
`static List<String>`	`getKeys(String prefix)` Returns all keys that start with a prefix
`static List<String>`	`getProperties(String prefix)` Return all numbered properties with a prefix.
`static String`	`getProperty(String key)` Returns property value for a key.
`static void`	`init()`
`boolean`	`isEmpty()`
`static boolean`	`isInDevelopment()`
`static boolean`	`isInProduction()`
`static boolean`	`isInStaging()`
`static boolean`	`isInTestEnv()`
`Set<String>`	`keySet()`
`static String`	`p(String key)` Gets property, synonym for `getProperty(String)`.
`String`	`put(String key, String value)`
`void`	`putAll(Map<? extends String,? extends String> m)`
`String`	`remove(Object key)`
`int`	`size()`
`Collection<String>`	`values()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

- Constructor Detail
  - AppConfig
```
public AppConfig()
```
- Method Detail
  - init
```
public static void init()
```
  - getAsProperty
```
public static Property getAsProperty(String key)
```
    Returns property instance corresponding to key.
    
    Parameters:
    
    key - key for property.
    
    Returns:
    
    Property for this key.
  - getProperty
```
public static String getProperty(String key)
```
    Returns property value for a key.
    
    Parameters:
    
    key - key of property.
    
    Returns:
    
    value for this key, null if not found.
  - p
```
public static String p(String key)
```
    Gets property, synonym for getProperty(String).
    
    Parameters:
    
    key - key of property
    
    Returns:
    
    property value
  - getAllProperties
```
public static Map<String,String> getAllProperties()
```
  - size
```
public int size()
```
    Specified by:
    
    size in interface Map<String,String>
  - isEmpty
```
public boolean isEmpty()
```
    Specified by:
    
    isEmpty in interface Map<String,String>
  - containsKey
```
public boolean containsKey(Object key)
```
    Specified by:
    
    containsKey in interface Map<String,String>
  - containsValue
```
public boolean containsValue(Object value)
```
    Specified by:
    
    containsValue in interface Map<String,String>
  - get
```
public String get(Object key)
```
    Specified by:
    
    get in interface Map<String,String>
  - put
```
public String put(String key,
                  String value)
```
    Specified by:
    
    put in interface Map<String,String>
  - remove
```
public String remove(Object key)
```
    Specified by:
    
    remove in interface Map<String,String>
  - putAll
```
public void putAll(Map<? extends String,? extends String> m)
```
    Specified by:
    
    putAll in interface Map<String,String>
  - clear
```
public void clear()
```
    Specified by:
    
    clear in interface Map<String,String>
  - keySet
```
public Set<String> keySet()
```
    Specified by:
    
    keySet in interface Map<String,String>
  - values
```
public Collection<String> values()
```
    Specified by:
    
    values in interface Map<String,String>
  - entrySet
```
public Set<Map.Entry<String,String>> entrySet()
```
    Specified by:
    
    entrySet in interface Map<String,String>
  - activeEnv
```
public static String activeEnv()
```
    Returns current environment name as defined by environment variable ACTIVE_ENV.
    
    Returns:
    
    current environment name as defined by environment variable ACTIVE_ENV.
  - isInTestEnv
```
public static boolean isInTestEnv()
```
    Returns:
    
    true if environment name as defined by environment variable ACTIVE_ENV is "testenv".
  - isInProduction
```
public static boolean isInProduction()
```
    Returns:
    
    true if environment name as defined by environment variable ACTIVE_ENV is "production".
  - isInDevelopment
```
public static boolean isInDevelopment()
```
    Returns:
    
    true if environment name as defined by environment variable ACTIVE_ENV is "development".
  - isInStaging
```
public static boolean isInStaging()
```
    Returns:
    
    true if environment name as defined by environment variable ACTIVE_ENV is "staging".
  - getKeys
```
public static List<String> getKeys(String prefix)
```
    Returns all keys that start with a prefix
    
    Parameters:
    
    prefix - prefix for properties.
  - getProperties
```
public static List<String> getProperties(String prefix)
```
    Return all numbered properties with a prefix. For instance if there is a file:
```
     prop.1=one
     prop.2=two
 
```
    .. and this method is called:
```
     List props = AppConfig.getProperties("prop");
 
```
    then the resulting list will have all properties starting from prop. This method presumes consecutive numbers in the suffix.
    Parameters:
    
    prefix - prefix of numbered properties.
    
    Returns:
    
    list of property values.

Class AppConfig

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Constructor Detail

AppConfig

Method Detail

init

getAsProperty

getProperty

p

getAllProperties

size

isEmpty

containsKey

containsValue

get

put

remove

putAll

clear

keySet

values

entrySet

activeEnv

isInTestEnv

isInProduction

isInDevelopment

isInStaging

getKeys

getProperties