diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..5c98b42 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,2 @@ +# Default ignored files +/workspace.xml \ No newline at end of file diff --git a/.idea/Maven.Spring-BeansLearnerLab.iml b/.idea/Maven.Spring-BeansLearnerLab.iml new file mode 100644 index 0000000..42d63f1 --- /dev/null +++ b/.idea/Maven.Spring-BeansLearnerLab.iml @@ -0,0 +1,11 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..034840c --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,7 @@ + + + + + + \ No newline at end of file diff --git a/.idea/modules.xml b/.idea/modules.xml new file mode 100644 index 0000000..8c06252 --- /dev/null +++ b/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml new file mode 100644 index 0000000..e96534f --- /dev/null +++ b/.idea/uiDesigner.xml @@ -0,0 +1,124 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..35eb1dd --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/demo/.gitignore b/demo/.gitignore new file mode 100644 index 0000000..a2a3040 --- /dev/null +++ b/demo/.gitignore @@ -0,0 +1,31 @@ +HELP.md +target/ +!.mvn/wrapper/maven-wrapper.jar +!**/src/main/** +!**/src/test/** + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ +build/ + +### VS Code ### +.vscode/ diff --git a/demo/.mvn/wrapper/MavenWrapperDownloader.java b/demo/.mvn/wrapper/MavenWrapperDownloader.java new file mode 100644 index 0000000..2281075 --- /dev/null +++ b/demo/.mvn/wrapper/MavenWrapperDownloader.java @@ -0,0 +1,117 @@ +/* + * Copyright 2012-2019 the original author or 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. + */ +import java.net.*; +import java.io.*; +import java.nio.channels.*; +import java.util.Properties; + +public class MavenWrapperDownloader { + + private static final String WRAPPER_VERSION = "0.5.5"; + /** + * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided. + */ + private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/" + + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar"; + + /** + * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to + * use instead of the default one. + */ + private static final String MAVEN_WRAPPER_PROPERTIES_PATH = + ".mvn/wrapper/maven-wrapper.properties"; + + /** + * Path where the maven-wrapper.jar will be saved to. + */ + private static final String MAVEN_WRAPPER_JAR_PATH = + ".mvn/wrapper/maven-wrapper.jar"; + + /** + * Name of the property which should be used to override the default download url for the wrapper. + */ + private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl"; + + public static void main(String args[]) { + System.out.println("- Downloader started"); + File baseDirectory = new File(args[0]); + System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath()); + + // If the maven-wrapper.properties exists, read it and check if it contains a custom + // wrapperUrl parameter. + File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH); + String url = DEFAULT_DOWNLOAD_URL; + if(mavenWrapperPropertyFile.exists()) { + FileInputStream mavenWrapperPropertyFileInputStream = null; + try { + mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile); + Properties mavenWrapperProperties = new Properties(); + mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream); + url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url); + } catch (IOException e) { + System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'"); + } finally { + try { + if(mavenWrapperPropertyFileInputStream != null) { + mavenWrapperPropertyFileInputStream.close(); + } + } catch (IOException e) { + // Ignore ... + } + } + } + System.out.println("- Downloading from: " + url); + + File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH); + if(!outputFile.getParentFile().exists()) { + if(!outputFile.getParentFile().mkdirs()) { + System.out.println( + "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'"); + } + } + System.out.println("- Downloading to: " + outputFile.getAbsolutePath()); + try { + downloadFileFromURL(url, outputFile); + System.out.println("Done"); + System.exit(0); + } catch (Throwable e) { + System.out.println("- Error downloading"); + e.printStackTrace(); + System.exit(1); + } + } + + private static void downloadFileFromURL(String urlString, File destination) throws Exception { + if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) { + String username = System.getenv("MVNW_USERNAME"); + char[] password = System.getenv("MVNW_PASSWORD").toCharArray(); + Authenticator.setDefault(new Authenticator() { + @Override + protected PasswordAuthentication getPasswordAuthentication() { + return new PasswordAuthentication(username, password); + } + }); + } + URL website = new URL(urlString); + ReadableByteChannel rbc; + rbc = Channels.newChannel(website.openStream()); + FileOutputStream fos = new FileOutputStream(destination); + fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE); + fos.close(); + rbc.close(); + } + +} diff --git a/demo/.mvn/wrapper/maven-wrapper.jar b/demo/.mvn/wrapper/maven-wrapper.jar new file mode 100644 index 0000000..0d5e649 Binary files /dev/null and b/demo/.mvn/wrapper/maven-wrapper.jar differ diff --git a/demo/.mvn/wrapper/maven-wrapper.properties b/demo/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 0000000..7d59a01 --- /dev/null +++ b/demo/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,2 @@ +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.2/apache-maven-3.6.2-bin.zip +wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar diff --git a/demo/README.md b/demo/README.md new file mode 100644 index 0000000..f4021cc --- /dev/null +++ b/demo/README.md @@ -0,0 +1,239 @@ +# Bean Flavored Learner Lab +* **Objective** - to register a `Classroom` bean which _mediates_ a _composite_ `Students` and `Instructors` bean reference. +* **Purpose** - to demonstrate the use of + * Bean registration + * Dependency Injection + * IOC Container + * `AnnotationConfigApplicationContext` + * Annotations + * `@Bean` + * `@DependsOn` + * `@Autowired` + * `@PostConstruct` + * `@Config` + * `@SpringBootTest` + * `@Qualifier` + + +## Developmental Notes +* Do NOT clone this repository until completing `Part 0.0` +* You may structure this project and the packaging how you please, however keep in mind that `@Configuration` scans from current directory down. +* Until `Part 10`, this project is nearly identical to the `LearnerLab` completed in the past. + +### Part 0.0 - Generating Project +* Navigate to [start.spring.io](https://start.spring.io/) +* In the `Search for Dependencies` input box search for + * `DevTools` + * `Web` +* Select `Generate Project` +* After the project has completed downloading, navigate to the download directory and unzip the project folder. +* At the root directory of the project, clone this repository. +* Move all files from the `demo` project generated by `start.spring.io`, into the newly cloned `learnerlab` folder. +* Open the project via its `pom.xml` from IntelliJ > File > Open + * Be sure to `Open as Project` when prompted + +### Part 1.0 - Create `Person` Class +* Create a `Person` class. + * The class should declare a `final` field named `id` of type `long`. + * The class should declare a field named `name` of type `String`. + * `Person` constructor should have a parameter of type `Long id, String name` which sets each of the fields to their respective value. + * The class should define a `getId()` method which returns the `Person` object's `id` field. + * The class should define a `getName()` method which returns the `Person` object's `name` field. + * The class should define a `setName()` method which sets the `Person` object's `name` field. + +- +### Part 2.0 - Create `Learner` Interface +* Create a `Learner` interface. + * `Learner` should declare one method signature: + * Method name: `learn` + * Method parameters: `double numberOfHours` + * Method return-type: `void` + +- +### Part 3.0 - Create `Student` Class +* Create a `Student` class such that: + * `Student` is a subclass of `Person` + * `Student` implements the `Learner` interface + * `Student` should have an instance variable `totalStudyTime` of type `double` + * `Student` should have a concrete implementation of the `learn` method which increments the `totalStudyTime` variable by the specified `numberOfHours` argument. + * `Student` should have a `getTotalStudyTime()` method which returns the `totalStudyTime` instance variable. + + +- +### Part 4.0 - Create `Teacher` Interface +* Create a `Teacher` interface. + * `Teacher` should declare a `teach` method signature: + * Method name: `teach` + * Method parameters: + * `Learner learner` + * `double numberOfHours` + * Method return-type: `void` + + * `Teacher` should declare a `lecture` method signature: + * Method name: `lecture` + * Method parameters: + * `Iterable learners` + * `double numberOfHours` + * Method return-type: `void` + + +- +### Part 5.0 - Create `Instructor` Class +* Create an `Instructor` class such that: + * `Instructor` is a subclass of `Person` + * `Instructor` implements the `Teacher` interface + * `Instructor` should have a concrete implementation of the `teach` method which invokes the `learn` method on the specified `Learner` object. + * `Instructor` should have a concrete implementation of the `lecture` method which invokes the `learn` method on each of the elements in the specified array of `Learner` objects. + * `numberOfHours` should be evenly split amongst the learners. + * `double numberOfHoursPerLearner = numberOfHours / learners.length;` + +### Part 6.0 - Create `People` +* Create an abstract `People` class + * The class signature should be parameterized with `PersonType` such that `PersonType` is a sub class of `Person`. + * The class should implement `Iterable` of type `PersonType`. + * Upon construction `People` should consume a `List` of `PersonType` and set it to a respective `personList` field. + * The class should define a constructor which consumes a variable number of `PersonType` objects and sets the `personList` field respectively. + * The class should define a method named `add` which adds a `PersonType` to the `personList`. + * The class should define a method named `remove` which removes a `PersonType` from the `personList`. + * The class should define a method named `size` which returns the size of `personList`. + * The class should define a method named `clear` which clears our `personList` field. + * The class should define a method named `addAll` which adds an `Iterable` of `PersonType` objects to the composite `personList`. + * This method will **NOT** take an argument of `Collection` + * The class should define a method named `findById` which makes use of a `long id` parameter to return a `PersonType` object with the respective `id` field. + * The class should define a method named `findAll` which returns the composite `personList`. + + +- +### Part 7.0 - Create `Students` +* Create a `Students` class. + * The class should be a subclass of `People` of parameterized type `Student`. + * The class should consume a variable number of `Student` objects upon construction and pass them to the super constructor. + +- +### Part 8.0 - Create `Instructors` +* Create a `Instructors` class. + * The class should be a subclass of `People` of parameterized type `Instructor`. + * The class should consume a variable number of `Instructor` objects upon construction and pass them to the super constructor. + + + +- +### Part 9.0 - Create `Classroom` +* Create a `Classroom` class. + * The class should consume and set composite reference to an `Instructors` and `Students` object upon construction + * The class should define a method `hostLecture` which makes use of a `Teacher teacher, double numberOfHours` parameter to host a `lecture` to the composite `personList` field in the `students` reference. + + +- +## Part 10.0 - Creating `Configuration` classes +* Each of the following `Config` classes should have a class-signature annotation of `@Configuration` + * this annotation tells spring to scan for `@Bean` definitions within the scope of the class, and register them to the [IOC Container](https://www.tutorialspoint.com/spring/spring_ioc_containers.htm) for `Inject` and `Autowire` use later. +* Classroom should define getters for each of its fields. + +### Developmental Notes +* `@Autowired` + * injects bean by type + * can be used alone. + * If is used alone, it will be wired by type + * If more than one bean of same type are declared in the container `@Autowired` does not know which beans to use for injection. + + +* `@Qualifier` + * injects bean by specified name + * supports fields, setter, constructors and multi-argument methods injection + * together with `@Autowired`, clarifies which beans to be wired by specifying the bean name (wired by name) + + + + +- +### Part 10.1 - Create `StudentConfig` +* **Note:** The creation of this class will demonstrate an implementation of _bean registration_ in Spring. +* The class should define a method named `currentStudents()` which returns a `Students` representative of the current cohort of students. + * the method should be annotated with `@Bean(name = "students")` + * this ensures the Spring container registers the bean with the respective name. + * a `@Bean` whose `name` attribute is not specified defaults to the name of the method it is annotating. +* The class should define a bean named `previousStudents()` which returns a `Students` representative of the previous cohort of students. + +- +### Part 10.2 - Create `InstructorsConfig` +* The class should define a bean named `tcUsaInstructors()` which returns an `Instructors` representative of the Tech Connect USA instructors. +* The class should define a bean named `tcUkInstructors()` which returns an `Instructors` representative of the Tech Connect UK instructors. +* The class should define a bean named `instructors` which returns all `Instructors` employed at ZipCodeWilmington + * annotate this bean with `@Primary` + * this ensures Spring will inject this bean in the case that an `Autowire` annotation is not supplied with a `Qualifier` annotation + + + +- +### Part 10.3 - Create `ClassroomConfig` +* The class should define a bean named `currentCohort()` which returns a `Classroom` object whose dependencies are `instructors` and `students` +* The class should define a bean named `previousCohort()` which returns an `Classroom` object whose dependencies are `instructors` and `previousStudents` +* **Note:** [it is sometimes useful](https://www.boraji.com/spring-dependson-annotation-example) (although not always necessary) to use the `@DependsOn` annotation to help the Spring framework and other readers of the code to understand what order beans should be executed. + * `@DependsOn({"instructors", "students"})` + + + + +- +## Part 11.0 - Test `Config` classes +* Each of the following `Test` classes should be annotated with + * `@RunWith(SpringRunner.class)` + * enforces which strategy `junit` should use to run tests + * `@SpringBootTest` + * indicates that this class is a Spring Boot test class + * provides support to scan for a `ContextConfiguration` that tells the test class how to load the `ApplicationContext`. + * If no `ContextConfiguration` classes are specified as a parameter to the `@SpringBootTest` annotation, the default behavior is to load the `ApplicationContext` by scanning for a `@SpringBootConfiguration` annotation on a class in the package root. +* Each bean can be injected into the class scope using `@Autowired` along with `@Qualifier(name = "beanname")` + + + +- +### Part 11.1 - Test `StudentConfig` Class +* Create a `TestStudentConfig` class in the `test` package. +* The class should ensure that each `Bean` in the `StudentConfig` class is configured as expected. +* **Tip:** You can use the `toString` method to get a representation of the aggregate state of any `People` object. + + +- +### Part 11.2 - Test `InstructorConfig` Class +* Create a `TestInstructorConfig` class in the `test` package. +* The class should ensure that each `Bean` in the `TestInstructorConfig` class is configured as expected. + + +- +### Part 11.3 - Test `ClassroomConfig` Class +* Create a `TestClassroomConfig` class in the `test` package. +* The class should ensure that each `Bean` in the `TestClassroomConfig` class is configured as expected. + + + + + + + +## Part 11.0 - Using `@Component` +* Annotating a class signature with `@Component` allows Spring to register the class as a `Bean` implicitly. + + +- +### Part 11.1 - Create `Alumni` Class +* Create an `Alumni` component which autowires `Students` of the previous cohort and `Instructors` +* Create an `executeBootcamp` method which teaches each `Student` in the composite `Students` a `totalNumberOfHours` of `1200`. + * Annotate this method with `@PostConstruct` + * denotes that this method must be executed before the class is put into an IoC container +* Create a getter for each of the fields. + +- +### Part 11.2 - Test `Alumni` Class +* Write a test class which ensures that each `Student` in the `Alumni` class has been taught `1200` hours upon injection of the `Alumni` dependency. +* Ensure the `numberOfHoursTaught` has been evenly distributed amongst each of the instructors. + +* **Tip:** How to derive `numberOfHoursTaught` dynamically +```java +int numberOfInstructors = instructors.size(); +int numberOfStudents = students.size(); +double numberOfHoursToTeachEachStudent = 1200; +double numberOfHoursToTeach = numberOfHoursToTeachEachStudent * numberOfStudents; +double numberOfHoursPerInstructor = numberOfHoursToTeach / numberOfInstructors; +``` diff --git a/demo/mvnw b/demo/mvnw new file mode 100755 index 0000000..21d3ee8 --- /dev/null +++ b/demo/mvnw @@ -0,0 +1,310 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you 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. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven2 Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Mingw, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + 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 + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +########################################################################################## +# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +# This allows using the maven wrapper in projects that prohibit checking in binary data. +########################################################################################## +if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found .mvn/wrapper/maven-wrapper.jar" + fi +else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..." + fi + if [ -n "$MVNW_REPOURL" ]; then + jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar" + else + jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar" + fi + while IFS="=" read key value; do + case "$key" in (wrapperUrl) jarUrl="$value"; break ;; + esac + done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties" + if [ "$MVNW_VERBOSE" = true ]; then + echo "Downloading from: $jarUrl" + fi + wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" + if $cygwin; then + wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"` + fi + + if command -v wget > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found wget ... using wget" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + wget "$jarUrl" -O "$wrapperJarPath" + else + wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" + fi + elif command -v curl > /dev/null; then + if [ "$MVNW_VERBOSE" = true ]; then + echo "Found curl ... using curl" + fi + if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then + curl -o "$wrapperJarPath" "$jarUrl" -f + else + curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f + fi + + else + if [ "$MVNW_VERBOSE" = true ]; then + echo "Falling back to using Java to download" + fi + javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java" + # For Cygwin, switch paths to Windows format before running javac + if $cygwin; then + javaClass=`cygpath --path --windows "$javaClass"` + fi + if [ -e "$javaClass" ]; then + if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Compiling MavenWrapperDownloader.java ..." + fi + # Compiling the Java class + ("$JAVA_HOME/bin/javac" "$javaClass") + fi + if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then + # Running the downloader + if [ "$MVNW_VERBOSE" = true ]; then + echo " - Running MavenWrapperDownloader.java ..." + fi + ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR") + fi + fi + fi +fi +########################################################################################## +# End of extension +########################################################################################## + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +if [ "$MVNW_VERBOSE" = true ]; then + echo $MAVEN_PROJECTBASEDIR +fi +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +# Provide a "standardized" way to retrieve the CLI args that will +# work with both Windows and non-Windows executions. +MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@" +export MAVEN_CMD_LINE_ARGS + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +exec "$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/demo/mvnw.cmd b/demo/mvnw.cmd new file mode 100644 index 0000000..84d60ab --- /dev/null +++ b/demo/mvnw.cmd @@ -0,0 +1,182 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM https://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven2 Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM set title of command window +title %0 +@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" +set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar" + +FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO ( + IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B +) + +@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central +@REM This allows using the maven wrapper in projects that prohibit checking in binary data. +if exist %WRAPPER_JAR% ( + if "%MVNW_VERBOSE%" == "true" ( + echo Found %WRAPPER_JAR% + ) +) else ( + if not "%MVNW_REPOURL%" == "" ( + SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.5/maven-wrapper-0.5.5.jar" + ) + if "%MVNW_VERBOSE%" == "true" ( + echo Couldn't find %WRAPPER_JAR%, downloading it ... + echo Downloading from: %DOWNLOAD_URL% + ) + + powershell -Command "&{"^ + "$webclient = new-object System.Net.WebClient;"^ + "if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^ + "$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^ + "}"^ + "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^ + "}" + if "%MVNW_VERBOSE%" == "true" ( + echo Finished downloading %WRAPPER_JAR% + ) +) +@REM End of extension + +@REM Provide a "standardized" way to retrieve the CLI args that will +@REM work with both Windows and non-Windows executions. +set MAVEN_CMD_LINE_ARGS=%* + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/demo/pom.xml b/demo/pom.xml new file mode 100644 index 0000000..d8123e7 --- /dev/null +++ b/demo/pom.xml @@ -0,0 +1,65 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 2.2.2.RELEASE + + + com.beans.learner.lab + demo + 0.0.1-SNAPSHOT + demo + Demo project for Spring Boot + + + 1.8 + + + + + org.springframework.boot + spring-boot-starter-web + + + + org.springframework.boot + spring-boot-devtools + runtime + true + + + org.springframework.boot + spring-boot-starter-test + test + + + org.junit.vintage + junit-vintage-engine + + + + + + + + + + junit + junit + test + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + + diff --git a/demo/src/main/.DS_Store b/demo/src/main/.DS_Store new file mode 100644 index 0000000..55c1fcb Binary files /dev/null and b/demo/src/main/.DS_Store differ diff --git a/demo/src/main/java/.DS_Store b/demo/src/main/java/.DS_Store new file mode 100644 index 0000000..35a54bf Binary files /dev/null and b/demo/src/main/java/.DS_Store differ diff --git a/demo/src/main/java/com/.DS_Store b/demo/src/main/java/com/.DS_Store new file mode 100644 index 0000000..57a5553 Binary files /dev/null and b/demo/src/main/java/com/.DS_Store differ diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Alumni.java b/demo/src/main/java/com/beans/learner/lab/demo/Alumni.java new file mode 100644 index 0000000..189bd9e --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Alumni.java @@ -0,0 +1,51 @@ +package com.beans.learner.lab.demo; + +import org.springframework.stereotype.Component; +import org.springframework.beans.factory.annotation.Autowired; +import javax.annotation.PostConstruct; +import org.springframework.beans.factory.annotation.*; + +@Component +public class Alumni { + + @Autowired + @Qualifier("previousStudents") + private Students previousStudents; + + @Autowired + private Instructors instructors; + + public Alumni(@Qualifier("previousStudents") Students previousStudents, Instructors instructors) { + this.previousStudents = previousStudents; + this.instructors = instructors; + } + + @PostConstruct + public void executeBootCamp() { + int numberOfInstructors = instructors.size(); + int numberOfStudents = previousStudents.size(); + double numberOfHoursToTeachEachStudent = 1200; + double numberOfHoursToTeach = numberOfHoursToTeachEachStudent * numberOfStudents; + double numberOfHoursPerInstructor = numberOfHoursToTeach / numberOfInstructors; + + for(Instructor instructor: instructors.personList) + instructor.lecture(previousStudents.personList, numberOfHoursPerInstructor); + } + + public Students getPreviousStudents() { + return previousStudents; + } + + public void setPreviousStudents(Students previousStudents) { + this.previousStudents = previousStudents; + } + + public Instructors getInstructors() { + return instructors; + } + + public void setInstructors(Instructors instructors) { + this.instructors = instructors; + } + +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Classroom.java b/demo/src/main/java/com/beans/learner/lab/demo/Classroom.java new file mode 100644 index 0000000..23d986c --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Classroom.java @@ -0,0 +1,27 @@ +package com.beans.learner.lab.demo; +public class Classroom { + Instructors instructors; + Students students; + + public Classroom(Instructors instructors, Students students) { + this.instructors = instructors; + this.students = students; + } + + public void hostLecture(Teacher teacher, double numberOfHours){ + teacher.lecture(students, numberOfHours); + } + + public Instructors getInstructors() { + return instructors; + } + + + public Students getStudents() { + return students; + } + + public void setStudents(Students students) { + this.students = students; + } +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/DemoApplication.java b/demo/src/main/java/com/beans/learner/lab/demo/DemoApplication.java new file mode 100644 index 0000000..865c78c --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/DemoApplication.java @@ -0,0 +1,13 @@ +package com.beans.learner.lab.demo; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class DemoApplication { + + public static void main(String[] args) { + SpringApplication.run(DemoApplication.class, args); + } + +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Instructor.java b/demo/src/main/java/com/beans/learner/lab/demo/Instructor.java new file mode 100644 index 0000000..ba26b8f --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Instructor.java @@ -0,0 +1,31 @@ +package com.beans.learner.lab.demo; + import java.util.*; + +public class Instructor extends Person implements Teacher{ + Iterable learners; + + public Instructor(Long id, String name) { + super(id, name); + learners = new ArrayList<>(); + } + + public void teach(Learner learner, double numberOfHours) { + learner.learn(numberOfHours); + } + + private int getSize(Iterable learners) { + int size = 0; + for(Learner learner : learners) { + size++; + } + return size; + } + + + + public void lecture(Iterable learners, double numberOfHours) { + for (Learner learner : learners) { + teach(learner, numberOfHours / getSize(learners)); + } + } +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Instructors.java b/demo/src/main/java/com/beans/learner/lab/demo/Instructors.java new file mode 100644 index 0000000..05d2589 --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Instructors.java @@ -0,0 +1,9 @@ +package com.beans.learner.lab.demo; +import java.util.List; + +public class Instructors extends People { + public Instructors(List personList) { + super(personList); + } + +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Learner.java b/demo/src/main/java/com/beans/learner/lab/demo/Learner.java new file mode 100644 index 0000000..e34986c --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Learner.java @@ -0,0 +1,5 @@ +package com.beans.learner.lab.demo; + +public interface Learner { + void learn(double numberOfHours); +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/People.java b/demo/src/main/java/com/beans/learner/lab/demo/People.java new file mode 100644 index 0000000..b97d66d --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/People.java @@ -0,0 +1,63 @@ +package com.beans.learner.lab.demo; +import java.util.*; +import java.util.function.Consumer; + +public abstract class People implements Iterable { + + List personList; + + + public People(List personList) { + this.personList = personList; + } + + public void add(PersonType person) { + this.personList.add(person); + } + + public void remove(PersonType person){ + this.personList.remove(person); + } + + public int size() { + return this.personList.size(); + } + + public void clear() { + this.personList.clear(); + } + + public void addAll(Iterable personList){ + this.personList.addAll((Collection)personList); + } + + public PersonType findById(long id) { + for(PersonType person: personList){ + if(person.getId() == id){ + return person; + } + } return null; + } + + public List findAll (){ + return personList; + + } + @Override + public Iterator iterator() { + return personList.iterator(); + } + + + @Override + public void forEach(Consumer action) { + + } + + + @Override + public Spliterator spliterator() { + return null; + } + +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Person.java b/demo/src/main/java/com/beans/learner/lab/demo/Person.java new file mode 100644 index 0000000..8122860 --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Person.java @@ -0,0 +1,24 @@ +package com.beans.learner.lab.demo; + +public class Person { + final Long id; + private String name; + + + public Person(Long id, String name) { + this.id = id; + this.name = name; + } + + public Long getId() { + return id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Student.java b/demo/src/main/java/com/beans/learner/lab/demo/Student.java new file mode 100644 index 0000000..7f09a37 --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Student.java @@ -0,0 +1,18 @@ +package com.beans.learner.lab.demo; + +public class Student extends Person implements Learner{ + double totalStudyTime; + + public Student(Long id, String name) { + super(id, name); + } + + @Override + public void learn(double numberOfHours) { + totalStudyTime += numberOfHours; + } + + public double getTotalStudyTime() { + return totalStudyTime; + } +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Students.java b/demo/src/main/java/com/beans/learner/lab/demo/Students.java new file mode 100644 index 0000000..9e496f8 --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Students.java @@ -0,0 +1,10 @@ +package com.beans.learner.lab.demo; +import java.util.*; + +public class Students extends People { + + + public Students(List personList) { + super(personList); + } +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/Teacher.java b/demo/src/main/java/com/beans/learner/lab/demo/Teacher.java new file mode 100644 index 0000000..885e99c --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/Teacher.java @@ -0,0 +1,6 @@ +package com.beans.learner.lab.demo; + +public interface Teacher { + void teach(Learner learner, double numberOfHours); + void lecture(Iterable learners, double numberOfHours); +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/configuration/ClassroomConfig.java b/demo/src/main/java/com/beans/learner/lab/demo/configuration/ClassroomConfig.java new file mode 100644 index 0000000..ec969e6 --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/configuration/ClassroomConfig.java @@ -0,0 +1,27 @@ +package com.beans.learner.lab.demo.configuration; + +import com.beans.learner.lab.demo.*; +import org.springframework.context.annotation.*; +import org.springframework.beans.factory.annotation.Qualifier; + + @Configuration + public class ClassroomConfig { + + + + @Bean("currentCohort") + @DependsOn({"instructors", "currentStudents"}) + public Classroom currentCohort(Instructors instructors, @Qualifier("currentStudents")Students students) { + return new Classroom(instructors, students); + } + + @Bean + + @DependsOn({"instructors", "previousStudents"}) + public Classroom previousCohort(Instructors instructors, @Qualifier("previousStudents") Students previousStudents) { + return new Classroom(instructors, previousStudents); + } + } + + + diff --git a/demo/src/main/java/com/beans/learner/lab/demo/configuration/InstructorConfig.java b/demo/src/main/java/com/beans/learner/lab/demo/configuration/InstructorConfig.java new file mode 100644 index 0000000..c3b3dd9 --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/configuration/InstructorConfig.java @@ -0,0 +1,38 @@ +package com.beans.learner.lab.demo.configuration; + +import com.beans.learner.lab.demo.*; +import java.util.*; +import org.springframework.context.annotation.*; +import org.springframework.beans.factory.annotation.Qualifier; + + +@Configuration +public class InstructorConfig { + @Bean + public Instructors tcUsaInstructors(){ + List tcUsaTeachers = new ArrayList<>(); + tcUsaTeachers.add(new Instructor(1L, "Nobles")); + tcUsaTeachers.add(new Instructor(2L, "Younger")); + return new Instructors(tcUsaTeachers); + + } + @Bean + public Instructors tcUkInstructors(){ + + List tcUkTeachers = new ArrayList<>(); + tcUkTeachers.add(new Instructor(4L, "Dolio")); + tcUkTeachers.add(new Instructor(5L, "Roberto")); + tcUkTeachers.add(new Instructor(6L, "Frolio")); + return new Instructors(tcUkTeachers); + } + @Bean + @Primary + public Instructors instructors(){ + ArrayList allInstructors = new ArrayList<>(); + allInstructors.addAll(tcUsaInstructors().findAll()); + allInstructors.addAll(tcUkInstructors().findAll()); + return new Instructors(allInstructors); + + } + +} diff --git a/demo/src/main/java/com/beans/learner/lab/demo/configuration/StudentConfig.java b/demo/src/main/java/com/beans/learner/lab/demo/configuration/StudentConfig.java new file mode 100644 index 0000000..46ae56b --- /dev/null +++ b/demo/src/main/java/com/beans/learner/lab/demo/configuration/StudentConfig.java @@ -0,0 +1,33 @@ +package com.beans.learner.lab.demo.configuration; + +import com.beans.learner.lab.demo.*; +import java.util.*; +import org.springframework.context.annotation.*; +import org.springframework.beans.factory.annotation.Qualifier; + + + +@Configuration +public class StudentConfig { + + @Bean(name = "currentStudents") + public Students currentStudents() { + List cohort52 = new ArrayList<>(); + cohort52.add(new Student(1L, "Charlotte")); + cohort52.add(new Student(2L, "Chung")); + cohort52.add(new Student(3L, "Josh")); + return new Students(cohort52); + } + + @Bean + @Qualifier("previousStudents") + public Students previousStudents() { + List cohort51 = new ArrayList<>(); + cohort51.add(new Student(4L, "Eddie")); + cohort51.add(new Student(5L, "David")); + cohort51.add(new Student(6L, "Jack")); + return new Students(cohort51); + } + + +} diff --git a/demo/src/main/java/com/example/.DS_Store b/demo/src/main/java/com/example/.DS_Store new file mode 100644 index 0000000..8067953 Binary files /dev/null and b/demo/src/main/java/com/example/.DS_Store differ diff --git a/demo/src/main/resources/application.properties b/demo/src/main/resources/application.properties new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/demo/src/main/resources/application.properties @@ -0,0 +1 @@ + diff --git a/demo/src/test/java/com/beans/learner/lab/demo/AlumniTest.java b/demo/src/test/java/com/beans/learner/lab/demo/AlumniTest.java new file mode 100644 index 0000000..ca224f4 --- /dev/null +++ b/demo/src/test/java/com/beans/learner/lab/demo/AlumniTest.java @@ -0,0 +1,27 @@ +package com.beans.learner.lab.demo; + +import org.junit.*; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.beans.factory.annotation.Autowired; +import com.beans.learner.lab.demo.*; +import java.util.*; +import org.junit.runner.*; +import org.springframework.test.context.junit4.SpringRunner; + +@RunWith(SpringRunner.class) +@SpringBootTest + public class AlumniTest { + @Autowired + private Alumni alumni; + + @Test + public void executeBootCampTest() { + for(Student s: alumni.getPreviousStudents().personList) { + Assert.assertEquals(1200.0, s.getTotalStudyTime(), 0.000001); + } + + + } + + +} diff --git a/demo/src/test/java/com/beans/learner/lab/demo/DemoApplicationTests.java b/demo/src/test/java/com/beans/learner/lab/demo/DemoApplicationTests.java new file mode 100644 index 0000000..7488610 --- /dev/null +++ b/demo/src/test/java/com/beans/learner/lab/demo/DemoApplicationTests.java @@ -0,0 +1,13 @@ +package com.beans.learner.lab.demo; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class DemoApplicationTests { + + @Test + void contextLoads() { + } + +} diff --git a/demo/src/test/java/com/beans/learner/lab/demo/TestClassroomConfig.java b/demo/src/test/java/com/beans/learner/lab/demo/TestClassroomConfig.java new file mode 100644 index 0000000..1867f63 --- /dev/null +++ b/demo/src/test/java/com/beans/learner/lab/demo/TestClassroomConfig.java @@ -0,0 +1,35 @@ +package com.beans.learner.lab.demo; + +import com.beans.learner.lab.demo.*; +import org.junit.*; +import org.junit.runner.RunWith; +import org.springframework.beans.factory.annotation.*; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.test.context.junit4.SpringRunner; + +@RunWith(SpringRunner.class) +@SpringBootTest +public class TestClassroomConfig { + @Autowired + @Qualifier("currentCohort") + Classroom currentCohort; + + @Autowired + @Qualifier("previousCohort") + Classroom previousCohort; + + + + + @Test + public void currentCohortTest() { + Assert.assertEquals("Nobles", currentCohort.getInstructors().findById(1L).getName()); + Assert.assertEquals("Chung", currentCohort.getStudents().findById(2L).getName()); + } + + @Test + public void previousCohortTest() { + Assert.assertEquals("Frolio", previousCohort.getInstructors().findById(6L).getName()); + Assert.assertEquals("David", previousCohort.getStudents().findById(5L).getName()); + } +} diff --git a/demo/src/test/java/com/beans/learner/lab/demo/TestInstructorConfig.java b/demo/src/test/java/com/beans/learner/lab/demo/TestInstructorConfig.java new file mode 100644 index 0000000..52bf800 --- /dev/null +++ b/demo/src/test/java/com/beans/learner/lab/demo/TestInstructorConfig.java @@ -0,0 +1,43 @@ +package com.beans.learner.lab.demo; + +import com.beans.learner.lab.demo.Instructors; +import org.junit.*; +import org.junit.runner.RunWith; +import org.springframework.beans.factory.annotation.*; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.test.context.junit4.SpringRunner; + + +@RunWith(SpringRunner.class) +@SpringBootTest + +public class TestInstructorConfig { + + @Autowired + @Qualifier("tcUsaInstructors") + Instructors tcUsaInstructors; + @Autowired + @Qualifier("tcUkInstructors") + Instructors tcUkInstructors; + @Autowired + @Qualifier("instructors") + private Instructors instructors; + + @Test + public void tcUsaInstructors(){ + Assert.assertEquals("Nobles", tcUsaInstructors.findById(1L).getName()); + } + + @Test + public void tcUkInstructors(){ + Assert.assertEquals("Dolio", tcUkInstructors.findById(4L).getName()); + } + + @Test + public void instructors(){ + Assert.assertEquals("Roberto", instructors.findById(5L).getName()); + } + + + +} diff --git a/demo/src/test/java/com/beans/learner/lab/demo/TestStudentConfig.java b/demo/src/test/java/com/beans/learner/lab/demo/TestStudentConfig.java new file mode 100644 index 0000000..7730e3b --- /dev/null +++ b/demo/src/test/java/com/beans/learner/lab/demo/TestStudentConfig.java @@ -0,0 +1,36 @@ +package com.beans.learner.lab.demo; + +import com.beans.learner.lab.demo.Students; +import org.junit.*; +import org.junit.runner.RunWith; +import org.springframework.beans.factory.annotation.*; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.test.context.junit4.SpringRunner; + + +@RunWith(SpringRunner.class) +@SpringBootTest +public class TestStudentConfig { + + @Autowired + @Qualifier("currentStudents") + Students students; + + @Autowired + @Qualifier("previousStudents") + private Students previousStudents; + + + + @Test + public void currentStudents() { + + Assert.assertEquals("Charlotte", students.findById(1L).getName()); + } + + @Test + public void previousStudents() { + + Assert.assertEquals("David", previousStudents.findById(5L).getName()); + } +}