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Configuration is a Java library to manage application configuration with compiled-in defaults and externally overridable config files, in a Properties-like manner.

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/*
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 */
package me.lachlanap.config.values;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import me.lachlanap.config.ConfigurationKeyNotFoundException;

/**
 *
 * @author lachlan
 */
public class ValuesContainer {

    private final Map values;

    public ValuesContainer() {
        values = new HashMap<>();
    }

    public Value getValue(String key) throws ConfigurationKeyNotFoundException {
        Value v = values.get(key);
        if (v == null)
            throw new ConfigurationKeyNotFoundException(key + " is not present");
        return v;
    }

    public String getString(String key) throws ConfigurationKeyNotFoundException {
        return getValue(key).stringValue();
    }

    public int getInt(String key) throws ConfigurationKeyNotFoundException {
        return getValue(key).intValue();
    }

    public void put(String key, String value) {
        put(key, Value.from(value));
    }

    public void put(String key, int value) {
        put(key, Value.from(value));
    }

    public void put(String key, Value value) {
        Value original = values.get(key);
        if (original == null) {
            values.put(key, value);
        } else {
            original.override(value);
        }
    }

    public void reset(String key) {
        getValue(key).reset();
    }

    public int getNumberOfKeys() {
        return values.size();
    }

    public void deleteAll() {
        values.clear();
    }

    public ValuesContainer overriden() {
        ValuesContainer overriden = new ValuesContainer();

        for (String key : getKeys()) {
            Value val = getValue(key);

            if (val.isOverriden()) {
                overriden.put(key, val);
            }
        }

        return overriden;
    }

    public Set getKeys() {
        return values.keySet();
    }

}