api_proto3.TestElf.java Source code

Introduction

Here is the source code for api_proto3.TestElf.java

Source

/*
 * Copyright (C) 2013 Brett Wooldridge
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* package com.zaxxer.hikari.pool; */

/* ported from HikariCP repository. */
package api_proto3;

import java.io.PrintStream;
import java.lang.reflect.Field;
import java.sql.Connection;
import java.util.HashMap;

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.Appender;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.Logger;
import org.apache.logging.log4j.core.appender.AbstractAppender;
import org.apache.logging.log4j.core.layout.CsvLogEventLayout;
//import org.apache.logging.slf4j.Log4jLogger;
import org.apache.commons.logging.impl.Log4JLogger;
import org.slf4j.LoggerFactory;

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
import com.zaxxer.hikari.pool.HikariPool;
import com.zaxxer.hikari.pool.ProxyConnection;

/**
 * Utility methods for testing.
 *
 * @author Brett Wooldridge
 */
public final class TestElf {
    private TestElf() {
        // default constructor
    }

    public static HikariPool getPool(HikariDataSource ds) {
        try {
            Field field = ds.getClass().getDeclaredField("pool");
            field.setAccessible(true);
            return (HikariPool) field.get(ds);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @SuppressWarnings("unchecked")
    public static HashMap<Object, HikariPool> getMultiPool(HikariDataSource ds) {
        try {
            Field field = ds.getClass().getDeclaredField("multiPool");
            field.setAccessible(true);
            return (HashMap<Object, HikariPool>) field.get(ds);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static boolean getConnectionCommitDirtyState(Connection connection) {
        try {
            Field field = ProxyConnection.class.getDeclaredField("isCommitStateDirty");
            field.setAccessible(true);
            return field.getBoolean(connection);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static void setConfigUnitTest(boolean unitTest) {
        try {
            Field field = HikariConfig.class.getDeclaredField("unitTest");
            field.setAccessible(true);
            field.setBoolean(null, unitTest);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static void setSlf4jTargetStream(Class<?> clazz, PrintStream stream) {
        try {
            //Log4jLogger log4Jlogger = (Log4jLogger) LoggerFactory.getLogger(clazz);
            Log4JLogger log4Jlogger = (Log4JLogger) LoggerFactory.getLogger(clazz);

            //Field field = clazz.getClassLoader().loadClass("org.apache.logging.slf4j.Log4jLogger").getDeclaredField("logger");
            Field field = clazz.getClassLoader().loadClass("org.apache.commons.logging.impl.Log4JLogger")
                    .getDeclaredField("logger");
            field.setAccessible(true);

            Logger logger = (Logger) field.get(log4Jlogger);
            if (logger.getAppenders().containsKey("string")) {
                Appender appender = logger.getAppenders().get("string");
                logger.removeAppender(appender);
            }

            logger.addAppender(new StringAppender("string", stream));
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    public static void setSlf4jLogLevel(Class<?> clazz, Level logLevel) {
        try {
            //Log4jLogger log4Jlogger = (Log4jLogger) LoggerFactory.getLogger(clazz);
            Log4JLogger log4Jlogger = (Log4JLogger) LoggerFactory.getLogger(clazz);

            //Field field = clazz.getClassLoader().loadClass("org.apache.logging.slf4j.Log4jLogger").getDeclaredField("logger");
            Field field = clazz.getClassLoader().loadClass("org.apache.commons.logging.impl.Log4JLogger")
                    .getDeclaredField("logger");
            field.setAccessible(true);

            Logger logger = (Logger) field.get(log4Jlogger);
            logger.setLevel(logLevel);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private static class StringAppender extends AbstractAppender {
        private static final long serialVersionUID = -1932433845656444920L;
        private PrintStream stream;

        StringAppender(String name, PrintStream stream) {
            super(name, null, CsvLogEventLayout.createDefaultLayout());
            this.stream = stream;
        }

        @Override
        public void append(LogEvent event) {
            stream.println(event.getMessage().getFormattedMessage());
        }
    }
}