Dev plugin

[sergiyvamz]

Summary

Introduce a new development plugin to simulate different exceptional cases. The plugin is aim to help with testing of rare exceptional cases like database cluster failover and network issues.

Description

A new dev plugin should be added to connection plugins parameter in order to be able to intercept JDBC calls and raise a test exception when conditions are met.

Connection connection = DriverManager.getConnection(...);
ConnectionWrapper connectionWrapper = (ConnectionWrapper) connection;
ExceptionSimulator simulator = connectionWrapper.unwrap(ExceptionSimulator.class);
simulator.raiseExceptionOnNextCall("Connection.createStatement", testExceptionToRaise);

In order to raise a test exception while opening a new connection, it's possible to use ExceptionSimulatorManager.

ExceptionSimulatorManager.raiseExceptionOnNextConnect(testExceptionToRaise);
Connection connection = DriverManager.getConnection(...); // that throws an exception

Additional Reviewers

@karenc-bq @congoamz @aaronchung-bitquill @crystall-bitquill

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.