com.github.bingoohuang.utils.config.impl.DefaultConfigable Maven / Gradle / Ivy

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package com.github.bingoohuang.utils.config.impl;

import com.github.bingoohuang.utils.config.Configable;
import com.github.bingoohuang.utils.crypto.Aes;
import org.apache.commons.lang3.text.StrSubstitutor;

import java.util.Map;
import java.util.Properties;

import static org.apache.commons.lang3.StringUtils.isEmpty;
import static org.apache.commons.lang3.StringUtils.startsWith;
import static org.apache.commons.lang3.StringUtils.trim;

public class DefaultConfigable extends BaseConfigable {

    private Properties properties;

    public DefaultConfigable() {
        this.properties = new Properties();
    }

    public DefaultConfigable(Properties properties) {
        this.properties = properties;
    }

    @Override
    public boolean exists(String key) {
        return properties.containsKey(key);
    }

    @Override
    public Properties getProperties() {
        return properties;
    }

    @Override
    public String getStr(String key) {
        String property = properties.getProperty(key);
        if (property == null) return null;

        // ${key}会在properties中定义了key时进行替换，否则保持原样
        property = StrSubstitutor.replace(property, properties);

        if (startsWith(property, "{AES}")) {
            property = Aes.decrypt(property.substring(5), Aes.getKey("n3rconfigkey"));
        }

        return trim(property);
    }

    @Override
    public Configable subset(String prefix) {
        if (isEmpty(prefix)) {
            return new DefaultConfigable( new Properties());
        }

        String prefixMatch = prefix.charAt(prefix.length() - 1) != '.' ? prefix + '.' : prefix;

        Properties subProps = subProperties(properties, prefixMatch);

        return new DefaultConfigable(subProps);
    }

    protected Properties subProperties(Properties properties, String prefixMatch) {
        Properties subProps = new Properties();
        for (Map.Entry entry : properties.entrySet()) {
            String key = (String) entry.getKey();

            if (!key.startsWith(prefixMatch)) continue;

            subProps.put(key.substring(prefixMatch.length()), entry.getValue());
        }

        return subProps;
    }

    @Override
    public long refreshConfigSet(String prefix) {
        return System.currentTimeMillis();
    }


    public void setProperties(Properties properties) {
        this.properties = properties;
    }

}