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feat: adds lesson_09 content and lesson_10 prework #294

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27 changes: 27 additions & 0 deletions .github/workflows/check_lesson_09_pr.yaml
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
name: Check Lesson 09 Pull Request

on:
pull_request:
branches: [ "main" ]
paths:
- "lesson_09/types/**"

jobs:
build:

runs-on: ubuntu-latest
permissions:
contents: read

steps:
- uses: actions/checkout@v4

- name: Set up JDK 17
uses: actions/setup-java@v4
with:
java-version: '17'
distribution: 'temurin'

- name: Build Lesson 09 with Gradle
working-directory: ./lesson_09/types
run: ./gradlew check
7 changes: 7 additions & 0 deletions .github/workflows/check_push.yml
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,9 @@ on:
- "lib/**"
- "lesson_02/quiz/**"
- "lesson_03/quiz/**"
- "lesson_06/expression/**"
- "lesson_07/conditionals/**"
- "lesson_09/types/**"

jobs:
build:
Expand Down Expand Up @@ -68,4 +71,8 @@ jobs:
npm ci
npm run compile

- name: Build Lesson 09 with Gradle
working-directory: ./lesson_09/types
run: ./gradlew check


21 changes: 20 additions & 1 deletion lesson_09/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -10,4 +10,23 @@ Please review the following resources before lecture:

## Homework

TODO(anthonydmays): Finish this.
- [ ] Complete [data types exercise](#choosing-the-right-data-types).

### Choosing the Right Data Types

For this exercise, you will use your knowledge of data types to identify the appropriate type to store and process data. You will run a program to generate a unique file with sample data, then write code to provide the correct data type of each column.

1. Execute the app providing a unique provider name.

```bash
./gradlew bootRun --args="yourprovidername" # Substitute with your own value
```
2. Examine the file that was created for you in the [resources/data][resources-folder] folder. The file will be formatted using the [JSON][json-link] data format.
3. Next, you will create a `DataProvider` implementation that will provide information about the data types for the columns in the file (e.g. `column1`, `column2`, etc.). You can view the example [AnthonyMaysProvider.java][example-file] file.
4. Customize the data types map by choosing the closest appropriate data type of each column. Each data type should only be used **once**.
5. As usual, make sure to apply the formatter and run the tests to confirm that you've implemented everything correctly.
6. You are to submit a PR with your `DataProvider` implementation and the generated `.json` file that was produced for you. All build checks must pass in order to receive full credit.

[json-link]: https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/JSON
[resources-folder]: ./types/types_app/src/main/resources/data/
[example-file]: ./types/types_app/src/main/java/com/codedifferently/lesson9/dataprovider/AnthonyMaysProvider.java
9 changes: 9 additions & 0 deletions lesson_09/types/.gitattributes
Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
#
# https://help.github.com/articles/dealing-with-line-endings/
#
# Linux start script should use lf
/gradlew text eol=lf

# These are Windows script files and should use crlf
*.bat text eol=crlf

5 changes: 5 additions & 0 deletions lesson_09/types/.gitignore
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
# Ignore Gradle project-specific cache directory
.gradle

# Ignore Gradle build output directory
build
Binary file added lesson_09/types/gradle/wrapper/gradle-wrapper.jar
Binary file not shown.
6 changes: 6 additions & 0 deletions lesson_09/types/gradle/wrapper/gradle-wrapper.properties
Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.2-bin.zip
networkTimeout=10000
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
244 changes: 244 additions & 0 deletions lesson_09/types/gradlew
Original file line number Diff line number Diff line change
@@ -0,0 +1,244 @@
#!/bin/sh

#
# Copyright © 2015-2021 the original authors.
#
# 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
#
# https://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.
#

##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################

# Attempt to set APP_HOME

# Resolve links: $0 may be a link
app_path=$0

# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done

# This is normally unused
# shellcheck disable=SC2034
APP_BASE_NAME=${0##*/}
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit

# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'

# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum

warn () {
echo "$*"
} >&2

die () {
echo
echo "$*"
echo
exit 1
} >&2

# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac

CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar


# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi

# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
# In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC3045
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
# In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC3045
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi

# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.

# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )

JAVACMD=$( cygpath --unix "$JAVACMD" )

# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi

# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.

set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"

# Stop when "xargs" is not available.
if ! command -v xargs >/dev/null 2>&1
then
die "xargs is not available"
fi

# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#

eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'

exec "$JAVACMD" "$@"
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