fr.ms.log4jdbc.operator.ResultSetOperationInvocationHandler Maven / Gradle / Ivy

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/*
 * This file is part of Log4Jdbc.
 *
 * Log4Jdbc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Log4Jdbc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Log4Jdbc.  If not, see .
 *
 */
package fr.ms.log4jdbc.operator;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.sql.ResultSet;

import fr.ms.log4jdbc.SqlOperationImpl;
import fr.ms.log4jdbc.SqlOperationLogger;
import fr.ms.log4jdbc.context.SqlOperationContext;
import fr.ms.log4jdbc.context.internal.ConnectionContext;
import fr.ms.log4jdbc.sql.QueryImpl;

/**
 *
 * @see Marco4J
 *
 *
 * @author Marco Semiao
 *
 */
public class ResultSetOperationInvocationHandler implements InvocationHandler {

    private final InvocationHandler invocationHandler;

    public ResultSetOperationInvocationHandler(final Object implementation, final ConnectionContext connectionContext, final SqlOperationLogger[] logs,
	    final OperationDecorator messageFactory) {
	this(implementation, connectionContext, logs, messageFactory, false);
    }

    public ResultSetOperationInvocationHandler(final Object implementation, final ConnectionContext connectionContext, final SqlOperationLogger[] logs,
	    final OperationDecorator messageFactory, final boolean timeInvocationResult) {
	final OperationDecorator wrapper = new WrapperMessageFactory(messageFactory);
	invocationHandler = new OperationInvocationHandler(implementation, connectionContext, logs, wrapper, timeInvocationResult);
    }

    public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
	return invocationHandler.invoke(proxy, method, args);
    }

    private final static class WrapperMessageFactory implements OperationDecorator {

	private final OperationDecorator messageFactory;

	WrapperMessageFactory(final OperationDecorator messageFactory) {
	    this.messageFactory = messageFactory;
	}

	public SqlOperationImpl transformMessage(final Object proxy, final Method method, final Object[] args, final SqlOperationContext mic,
		SqlOperationImpl message) {
	    message = new SqlOperationImpl(mic);

	    message = messageFactory.transformMessage(proxy, method, args, mic, message);

	    final Object invoke = mic.getInvokeTime().getInvoke();
	    final QueryImpl query = mic.getQuery();
	    if (query != null && invoke instanceof ResultSet) {
		final ConnectionContext connectionContext = mic.getConnectionContext();
		final ResultSet rs = (ResultSet) invoke;
		query.initResultSetCollector(connectionContext, rs);
	    }
	    return message;
	}

	public Object wrap(final Object invoke, final Object[] args, final SqlOperationContext mic) {
	    return messageFactory.wrap(invoke, args, mic);
	}
    }
}