feat(sql): Support sql based configuration provider.

impl/sql/src/test/java/config/SQLConfigTest.java

@@ -0,0 +1,40 @@
+package config;
+
+import cc.carm.lib.configuration.EasyConfiguration;
+import cc.carm.lib.configuration.demo.tests.ConfigurationTest;
+import cc.carm.lib.configuration.sql.SQLConfigProvider;
+import cc.carm.lib.easysql.EasySQL;
+import cc.carm.lib.easysql.api.SQLManager;
+import cc.carm.lib.easysql.beecp.BeeDataSourceConfig;
+import org.junit.Test;
+
+public class SQLConfigTest {
+
+    @Test
+    public void onTest() {
+//        test();
+    }
+
+
+    public void test() {
+        BeeDataSourceConfig config = new BeeDataSourceConfig();
+        config.setDriverClassName("org.h2.Driver");
+        config.setJdbcUrl("jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;MODE=MySQL;");
+        SQLManager manager = EasySQL.createManager(config);
+        manager.setDebugMode(true);
+
+        SQLConfigProvider provider = EasyConfiguration.from(manager, "conf_test", "TESTING");
+
+        ConfigurationTest.testDemo(provider);
+        ConfigurationTest.testInner(provider);
+
+        System.out.println("----------------------------------------------------");
+        provider.getConfiguration().getValues(true).forEach((k, v) -> System.out.println(k + ": " + v));
+        System.out.println("----------------------------------------------------");
+        provider.getConfiguration().getValues(false).forEach((k, v) -> System.out.println(k + ": " + v));
+        System.out.println("----------------------------------------------------");
+
+        ConfigurationTest.save(provider);
+    }
+
+}

impl/sql/src/test/resources/log4j2.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN" packages="config.SQLConfigTest">
+    <Appenders>
+        <console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n"/>
+        </console>
+    </Appenders>
+    <Loggers>
+        <Root level="info">
+            <filters>
+                <MarkerFilter marker="NETWORK_PACKETS" onMatch="DENY" onMismatch="NEUTRAL"/>
+                <RegexFilter regex=".*\$\{[^}]*\}.*" onMatch="DENY" onMismatch="NEUTRAL"/>
+            </filters>
+            <AppenderRef ref="File"/>
+            <appender-ref ref="Console"/>
+        </Root>
+    </Loggers>
+</Configuration>
+