Keith Gregory kdgregory

Programming computers since 1977, getting paid for it since 1984.

kdgregory / ForgotPasswordExample.java

Created January 29, 2017 18:37

Examples of unexpected behavior from Cognito IDP; see comments

	import java.util.HashMap;
	import java.util.Map;

	import com.amazonaws.services.cognitoidp.AWSCognitoIdentityProviderClient;
	import com.amazonaws.services.cognitoidp.model.*;


	/**
	* Demonstrates that it's possible to login with the original credentials
	* after initiating the Forgot Password flow.

kdgregory / Main.java

Last active December 3, 2018 19:42

Examples for Logging presentation

	// Copyright (c) Keith D Gregory, all rights reserved
	package com.kdgregory.sandbox.spark.concordance;

	import java.io.FileOutputStream;
	import java.io.OutputStreamWriter;
	import java.io.PrintWriter;
	import java.util.List;

	import org.apache.spark.SparkContext;
	import org.apache.spark.api.java.JavaRDD;

kdgregory / KinesisConsumer.java

Last active December 3, 2018 19:42

Examples for AWS messaging talk

	// Copyright (c) Keith D Gregory, all rights reserved
	package com.example.aws.kinesis;

	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;

	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

kdgregory / logging_example.py

Last active July 8, 2024 07:30

Example of generating JSON logging output from Python

	import json
	import logging
	import platform
	import sys
	import time
	import traceback

	class JSONFormatter:
	"""A formatter for the standard logging module that converts a LogRecord into JSON

kdgregory / AuroraFailoverTest.java

Last active September 11, 2019 00:20

Example program that uses a database connection checkout test to avoid using a read-only connection after Aurora failover.

	// Copyright (c) Keith D Gregory, all rights reserved
	package com.kdgregory.sandbox.jdbc;

	import java.util.List;
	import java.util.Map;
	import java.util.UUID;

	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

kdgregory / Log4JCapturingAppender.java

Created February 19, 2019 12:12

A Log4J appender implementation that captures logging output for assertions within test classes.

	// Copyright (c) Keith D Gregory
	//
	// 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,

kdgregory / main.tf

Created November 9, 2020 12:14

Example of Terraform module to create an SQS queue.

	##
	## Main configuration: creates several SQS queues using a module, then
	## combines their policies into an application role.
	##

	provider "aws" {}

	module "notifications_queue" {
	source = "./modules/sqs"
	queue_name = "Notifications"

kdgregory / main.tf

Last active February 26, 2023 21:35

Example of Terraform module to create an SQS queue with modular policy documents

	##
	## Main configuration: creates several SQS queues using a module, then
	## combines their policies into an application role.
	##

	provider "aws" {}

	module "notifications_queue" {
	source = "./modules/sqs"
	queue_name = "Notifications"

kdgregory / AutoMDC.java

Last active February 24, 2022 12:50

AutoMDC: manage the SLF4J mapped diagnostic context using try-with-resources

	// This code has been placed in the public domain by the author.
	//
	// You may use, modify, and redistribute without restriction.
	//
	// Use of this software is on an "AS IS" BASIS, WITHOUT WARRANTIES OR
	// CONDITIONS OF ANY KIND, either express or implied.

	package com.kdgregory.example;

	import java.util.HashSet;

kdgregory / ExplicitProxyV1.java

Created June 9, 2022 11:31

Examples of using proxies with AWS Java SDK

	//
	// This code has been released into the public domain by the author.
	// It may be used or modified without attribution. and is distributed
	// on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
	// either express or implied.
	//
	package com.kdgregory.sandbox.aws;

	import com.amazonaws.ClientConfiguration;
	import com.amazonaws.Protocol;