From 200abbb81514e84dab01967aadd39bc425d0bd22 Mon Sep 17 00:00:00 2001
From: Christopher Bohn <bohn@unl.edu>
Date: Wed, 30 Nov 2022 20:14:13 -0600
Subject: [PATCH] getting ready for 2022 Advent of Code
---
2022/README.md | 4 +
2022/pom.xml | 25 +++++
.../java/edu/unl/cse/bohn/ImportData.java | 91 +++++++++++++++++++
2022/src/main/java/edu/unl/cse/bohn/Main.java | 49 ++++++++++
.../main/java/edu/unl/cse/bohn/Puzzle.java | 28 ++++++
2022/src/main/java/edu/unl/cse/bohn/year2021 | 1 +
2022/src/main/resources/apikeys.TEMPLATE | 3 +
scaffolding/ImportData.java | 91 +++++++++++++++++++
scaffolding/Main.java | 49 ++++++++++
scaffolding/Puzzle.java | 28 ++++++
10 files changed, 369 insertions(+)
create mode 100644 2022/README.md
create mode 100644 2022/pom.xml
create mode 100644 2022/src/main/java/edu/unl/cse/bohn/ImportData.java
create mode 100644 2022/src/main/java/edu/unl/cse/bohn/Main.java
create mode 100644 2022/src/main/java/edu/unl/cse/bohn/Puzzle.java
create mode 120000 2022/src/main/java/edu/unl/cse/bohn/year2021
create mode 100644 2022/src/main/resources/apikeys.TEMPLATE
create mode 100644 scaffolding/ImportData.java
create mode 100644 scaffolding/Main.java
create mode 100644 scaffolding/Puzzle.java
diff --git a/2022/README.md b/2022/README.md
new file mode 100644
index 0000000..03da0a2
--- /dev/null
+++ b/2022/README.md
@@ -0,0 +1,4 @@
+# 2022 Advent of Code Solutions
+
+## Day 1
+
diff --git a/2022/pom.xml b/2022/pom.xml
new file mode 100644
index 0000000..22efcff
--- /dev/null
+++ b/2022/pom.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>edu.unl.cse.bohn</groupId>
+ <artifactId>AdventOfCoding</artifactId>
+ <version>1.0-SNAPSHOT</version>
+
+ <properties>
+ <maven.compiler.source>17</maven.compiler.source>
+ <maven.compiler.target>17</maven.compiler.target>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>com.googlecode.json-simple</groupId>
+ <artifactId>json-simple</artifactId>
+ <version>1.1.1</version>
+ </dependency>
+ </dependencies>
+
+</project>
\ No newline at end of file
diff --git a/2022/src/main/java/edu/unl/cse/bohn/ImportData.java b/2022/src/main/java/edu/unl/cse/bohn/ImportData.java
new file mode 100644
index 0000000..e472acd
--- /dev/null
+++ b/2022/src/main/java/edu/unl/cse/bohn/ImportData.java
@@ -0,0 +1,91 @@
+package edu.unl.cse.bohn;
+
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URLConnection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+
+public class ImportData {
+
+ public static final String FILENAME = "apikeys.json";
+
+ protected final String protocol;
+ protected final String host;
+ protected final String path;
+ protected final String apiKey;
+
+ @SuppressWarnings("unused")
+ public static List<String> readFile(String filename) throws IOException {
+ List<String> data = new LinkedList<>();
+ BufferedReader bufferedReader;
+ bufferedReader = new BufferedReader(new FileReader(filename));
+ while (bufferedReader.ready()) {
+ data.add(bufferedReader.readLine());
+ }
+ return data;
+ }
+
+ public ImportData(String apiKeyName, int year, int day) {
+ String apiKey;
+ protocol = "https";
+ host = "adventofcode.com";
+ path = "/" + year + "/day/" + day + "/input";
+ try {
+ apiKey = getApiKey(apiKeyName);
+ } catch (IOException ioException) {
+ System.err.println("Could not retrieve API key: " + ioException.getMessage());
+ apiKey = null;
+ }
+ this.apiKey = apiKey;
+ }
+
+ protected String getApiKey(String apiKeyName) throws IOException {
+ JSONObject apiKeyJson;
+ try (InputStreamReader inputStreamReader = new InputStreamReader(
+ Objects.requireNonNull(ImportData.class.getClassLoader().getResourceAsStream(FILENAME)))) {
+ apiKeyJson = (JSONObject)new JSONParser().parse(inputStreamReader);
+ } catch (NullPointerException nullPointerException) {
+ FileNotFoundException newException = new FileNotFoundException("File " + FILENAME + " not found.");
+ newException.initCause(nullPointerException);
+ throw newException;
+ } catch (ParseException parseException) {
+ throw new IOException("Error while parsing file " + FILENAME + ".", parseException);
+ }
+ if (!apiKeyJson.containsKey(apiKeyName)) {
+ System.err.println("WARNING! Could not locate API key named " + apiKeyName + " in file " + FILENAME + ".");
+ }
+ String apiKey = apiKeyJson.get(apiKeyName).toString();
+ if (apiKey.equals("")) {
+ System.err.println("WARNING! API key named " + apiKeyName + " in file " + FILENAME + " is blank.");
+ }
+ return apiKey;
+ }
+
+ public List<String> importData() throws IOException {
+ List<String> data = new LinkedList<>();
+ BufferedReader bufferedReader;
+ try {
+ URLConnection connection = new URI(protocol, host, path, null).toURL().openConnection();
+ connection.setRequestProperty("Cookie", apiKey);
+ bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+ } catch (URISyntaxException | MalformedURLException originalException) {
+ throw new IOException("Could not retrieve usable data from " + host + ".", originalException);
+ }
+ while (bufferedReader.ready()) {
+ data.add(bufferedReader.readLine());
+ }
+ return data;
+ }
+}
diff --git a/2022/src/main/java/edu/unl/cse/bohn/Main.java b/2022/src/main/java/edu/unl/cse/bohn/Main.java
new file mode 100644
index 0000000..875e4b5
--- /dev/null
+++ b/2022/src/main/java/edu/unl/cse/bohn/Main.java
@@ -0,0 +1,49 @@
+package edu.unl.cse.bohn;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.Calendar;
+import java.util.Scanner;
+
+public class Main {
+ public static final String defaultApiKey = "aoc";
+
+ private static String getUserInput(String prompt, String defaultValue, Scanner scanner) {
+ System.out.print(prompt + " [" + defaultValue + "]: ");
+ String userInput = scanner.nextLine();
+ return userInput.equals("") ? defaultValue : userInput;
+ }
+
+ public static void main(String... arguments) {
+ Scanner scanner = new Scanner(System.in);
+ String apiKey = getUserInput("Enter API key", defaultApiKey, scanner);
+ Calendar calendar = Calendar.getInstance();
+ int year = Integer.parseInt(getUserInput("Enter puzzle year",
+ Integer.toString(calendar.get(Calendar.YEAR)), scanner));
+ int day = Integer.parseInt(getUserInput("Enter puzzle day",
+ Integer.toString(calendar.get(Calendar.DAY_OF_MONTH)), scanner));
+ boolean useProductionData = getUserInput("Use sample data (Y/N)?", "Y", scanner).toUpperCase().charAt(0) != 'Y';
+ scanner.close();
+ ImportData dataSource = new ImportData(apiKey, year, day);
+ String className = Main.class.getPackageName() + ".year" + year + ".Day" + day;
+ Puzzle puzzle = null;
+ try {
+ puzzle = (Puzzle)Class.forName(className).getConstructors()[0].newInstance(useProductionData);
+ } catch (ClassNotFoundException classNotFoundException) {
+ System.err.println("Could not find class " + className);
+ System.exit(1);
+ } catch (InstantiationException ignored) {
+ System.err.println(className + " is an abstract class.");
+ System.exit(1);
+ } catch (IllegalAccessException ignored) {
+ System.err.println("The requested constructor for " + className + " is inaccessible.");
+ System.exit(1);
+ } catch (InvocationTargetException invocationTargetException) {
+ System.err.println("The constructor for " + className + " threw an exception.");
+ System.err.println(invocationTargetException.getMessage());
+ Throwable originalException = invocationTargetException.getCause();
+ System.err.println("Caused by: " + originalException);
+ System.exit(1);
+ }
+ puzzle.solvePuzzle(dataSource);
+ }
+}
diff --git a/2022/src/main/java/edu/unl/cse/bohn/Puzzle.java b/2022/src/main/java/edu/unl/cse/bohn/Puzzle.java
new file mode 100644
index 0000000..100704c
--- /dev/null
+++ b/2022/src/main/java/edu/unl/cse/bohn/Puzzle.java
@@ -0,0 +1,28 @@
+package edu.unl.cse.bohn;
+
+import java.io.IOException;
+import java.util.List;
+
+public abstract class Puzzle {
+ protected String sampleData = "";
+ protected boolean isProductionReady;
+
+ public Puzzle(boolean isProductionReady) {
+ this.isProductionReady = isProductionReady;
+ }
+
+ public abstract long computePart1(List<String> data);
+ public abstract long computePart2(List<String> data);
+
+ public void solvePuzzle(ImportData dataSource) {
+ List<String> data = null;
+ try {
+ data = isProductionReady ? dataSource.importData() : List.of(sampleData.split(System.lineSeparator()));
+ } catch (IOException ioException) {
+ System.err.println("Could not retrieve data: " + ioException);
+ System.exit(1);
+ }
+ System.out.println("Part 1: " + computePart1(data));
+ System.out.println("Part 2: " + computePart2(data));
+ }
+}
diff --git a/2022/src/main/java/edu/unl/cse/bohn/year2021 b/2022/src/main/java/edu/unl/cse/bohn/year2021
new file mode 120000
index 0000000..9eb349c
--- /dev/null
+++ b/2022/src/main/java/edu/unl/cse/bohn/year2021
@@ -0,0 +1 @@
+../../../../../../../../2021/src/main/java/edu/unl/cse/bohn/year2021
\ No newline at end of file
diff --git a/2022/src/main/resources/apikeys.TEMPLATE b/2022/src/main/resources/apikeys.TEMPLATE
new file mode 100644
index 0000000..13923fa
--- /dev/null
+++ b/2022/src/main/resources/apikeys.TEMPLATE
@@ -0,0 +1,3 @@
+{
+ "aoc": ""
+}
diff --git a/scaffolding/ImportData.java b/scaffolding/ImportData.java
new file mode 100644
index 0000000..e472acd
--- /dev/null
+++ b/scaffolding/ImportData.java
@@ -0,0 +1,91 @@
+package edu.unl.cse.bohn;
+
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URLConnection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+
+public class ImportData {
+
+ public static final String FILENAME = "apikeys.json";
+
+ protected final String protocol;
+ protected final String host;
+ protected final String path;
+ protected final String apiKey;
+
+ @SuppressWarnings("unused")
+ public static List<String> readFile(String filename) throws IOException {
+ List<String> data = new LinkedList<>();
+ BufferedReader bufferedReader;
+ bufferedReader = new BufferedReader(new FileReader(filename));
+ while (bufferedReader.ready()) {
+ data.add(bufferedReader.readLine());
+ }
+ return data;
+ }
+
+ public ImportData(String apiKeyName, int year, int day) {
+ String apiKey;
+ protocol = "https";
+ host = "adventofcode.com";
+ path = "/" + year + "/day/" + day + "/input";
+ try {
+ apiKey = getApiKey(apiKeyName);
+ } catch (IOException ioException) {
+ System.err.println("Could not retrieve API key: " + ioException.getMessage());
+ apiKey = null;
+ }
+ this.apiKey = apiKey;
+ }
+
+ protected String getApiKey(String apiKeyName) throws IOException {
+ JSONObject apiKeyJson;
+ try (InputStreamReader inputStreamReader = new InputStreamReader(
+ Objects.requireNonNull(ImportData.class.getClassLoader().getResourceAsStream(FILENAME)))) {
+ apiKeyJson = (JSONObject)new JSONParser().parse(inputStreamReader);
+ } catch (NullPointerException nullPointerException) {
+ FileNotFoundException newException = new FileNotFoundException("File " + FILENAME + " not found.");
+ newException.initCause(nullPointerException);
+ throw newException;
+ } catch (ParseException parseException) {
+ throw new IOException("Error while parsing file " + FILENAME + ".", parseException);
+ }
+ if (!apiKeyJson.containsKey(apiKeyName)) {
+ System.err.println("WARNING! Could not locate API key named " + apiKeyName + " in file " + FILENAME + ".");
+ }
+ String apiKey = apiKeyJson.get(apiKeyName).toString();
+ if (apiKey.equals("")) {
+ System.err.println("WARNING! API key named " + apiKeyName + " in file " + FILENAME + " is blank.");
+ }
+ return apiKey;
+ }
+
+ public List<String> importData() throws IOException {
+ List<String> data = new LinkedList<>();
+ BufferedReader bufferedReader;
+ try {
+ URLConnection connection = new URI(protocol, host, path, null).toURL().openConnection();
+ connection.setRequestProperty("Cookie", apiKey);
+ bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
+ } catch (URISyntaxException | MalformedURLException originalException) {
+ throw new IOException("Could not retrieve usable data from " + host + ".", originalException);
+ }
+ while (bufferedReader.ready()) {
+ data.add(bufferedReader.readLine());
+ }
+ return data;
+ }
+}
diff --git a/scaffolding/Main.java b/scaffolding/Main.java
new file mode 100644
index 0000000..875e4b5
--- /dev/null
+++ b/scaffolding/Main.java
@@ -0,0 +1,49 @@
+package edu.unl.cse.bohn;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.Calendar;
+import java.util.Scanner;
+
+public class Main {
+ public static final String defaultApiKey = "aoc";
+
+ private static String getUserInput(String prompt, String defaultValue, Scanner scanner) {
+ System.out.print(prompt + " [" + defaultValue + "]: ");
+ String userInput = scanner.nextLine();
+ return userInput.equals("") ? defaultValue : userInput;
+ }
+
+ public static void main(String... arguments) {
+ Scanner scanner = new Scanner(System.in);
+ String apiKey = getUserInput("Enter API key", defaultApiKey, scanner);
+ Calendar calendar = Calendar.getInstance();
+ int year = Integer.parseInt(getUserInput("Enter puzzle year",
+ Integer.toString(calendar.get(Calendar.YEAR)), scanner));
+ int day = Integer.parseInt(getUserInput("Enter puzzle day",
+ Integer.toString(calendar.get(Calendar.DAY_OF_MONTH)), scanner));
+ boolean useProductionData = getUserInput("Use sample data (Y/N)?", "Y", scanner).toUpperCase().charAt(0) != 'Y';
+ scanner.close();
+ ImportData dataSource = new ImportData(apiKey, year, day);
+ String className = Main.class.getPackageName() + ".year" + year + ".Day" + day;
+ Puzzle puzzle = null;
+ try {
+ puzzle = (Puzzle)Class.forName(className).getConstructors()[0].newInstance(useProductionData);
+ } catch (ClassNotFoundException classNotFoundException) {
+ System.err.println("Could not find class " + className);
+ System.exit(1);
+ } catch (InstantiationException ignored) {
+ System.err.println(className + " is an abstract class.");
+ System.exit(1);
+ } catch (IllegalAccessException ignored) {
+ System.err.println("The requested constructor for " + className + " is inaccessible.");
+ System.exit(1);
+ } catch (InvocationTargetException invocationTargetException) {
+ System.err.println("The constructor for " + className + " threw an exception.");
+ System.err.println(invocationTargetException.getMessage());
+ Throwable originalException = invocationTargetException.getCause();
+ System.err.println("Caused by: " + originalException);
+ System.exit(1);
+ }
+ puzzle.solvePuzzle(dataSource);
+ }
+}
diff --git a/scaffolding/Puzzle.java b/scaffolding/Puzzle.java
new file mode 100644
index 0000000..100704c
--- /dev/null
+++ b/scaffolding/Puzzle.java
@@ -0,0 +1,28 @@
+package edu.unl.cse.bohn;
+
+import java.io.IOException;
+import java.util.List;
+
+public abstract class Puzzle {
+ protected String sampleData = "";
+ protected boolean isProductionReady;
+
+ public Puzzle(boolean isProductionReady) {
+ this.isProductionReady = isProductionReady;
+ }
+
+ public abstract long computePart1(List<String> data);
+ public abstract long computePart2(List<String> data);
+
+ public void solvePuzzle(ImportData dataSource) {
+ List<String> data = null;
+ try {
+ data = isProductionReady ? dataSource.importData() : List.of(sampleData.split(System.lineSeparator()));
+ } catch (IOException ioException) {
+ System.err.println("Could not retrieve data: " + ioException);
+ System.exit(1);
+ }
+ System.out.println("Part 1: " + computePart1(data));
+ System.out.println("Part 2: " + computePart2(data));
+ }
+}
--
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