com.asakusafw.yaess.core

Class VariableResolver

java.lang.Object

com.asakusafw.yaess.core.VariableResolver

public class VariableResolver
extends Object

Resolves variables in form of ${variable_name}.

Since:

0.2.2

Version:

0.7.4

Constructor Summary

Constructors

Constructor and Description
VariableResolver(Map<String,String> entries) Creates a new instance.

Method Summary

Modifier and Type	Method and Description
String	replace(String string, boolean strict) Replaces parameters in the target string.
static VariableResolver	system() Creates a new instance from environment variables and system properties.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

VariableResolver

public VariableResolver(Map<String,String> entries)

Creates a new instance.

Parameters:

entries - the variable key and its value pairs

Throws:

IllegalArgumentException - if any parameter is null

Method Detail

system

public static VariableResolver system()

Creates a new instance from environment variables and system properties. If both have same entry, the system properties takes precedence over the environment variables.

Returns:

the created instance

replace

public String replace(String string,
                      boolean strict)

Replaces parameters in the target string. The parameters are represented as ${variable-name}.

Parameters:

string - target string

strict - false to keep undefined parameters, or true to raise an exception

Returns:

replaced string

Throws:

IllegalArgumentException - if undefined parameters exist on strict mode, or any parameters contain null

toString

public String toString()

Overrides:

toString in class Object