Initial Commit
This commit is contained in:
Alexander Staeding
9
.editorconfig
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9
.editorconfig
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@ -0,0 +1,9 @@
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|
# Editor configuration, see https://editorconfig.org
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root = true
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[*]
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charset = utf-8
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indent_style = space
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indent_size = 2
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insert_final_newline = true
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trim_trailing_whitespace = true
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84
.gitignore
vendored
Normal file
84
.gitignore
vendored
Normal file
@ -0,0 +1,84 @@
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### VS-Code ###
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.vscode/
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*.code-workspace
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.history/
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### Intellij ###
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.idea/
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*.iws
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/out/
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*.iml
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.idea_modules/
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atlassian-ide-plugin.xml
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### Eclipse ###
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.metadata
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bin/
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tmp/
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*.tmp
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*.bak
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*.swp
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*~.nib
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local.properties
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.settings/
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.loadpath
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.recommenders
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.externalToolBuilders/
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*.launch
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.factorypath
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.recommenders/
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.apt_generated/
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.project
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.classpath
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### Linux ###
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*~
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.fuse_hidden*
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.directory
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.Trash-*
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.nfs*
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### macOS ###
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.DS_Store
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.AppleDouble
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.LSOverride
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Icon
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._*
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.DocumentRevisions-V100
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.fseventsd
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.Spotlight-V100
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.TemporaryItems
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|
.Trashes
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|
.VolumeIcon.icns
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.com.apple.timemachine.donotpresent
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.AppleDB
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.AppleDesktop
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|
Network Trash Folder
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|
Temporary Items
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|
.apdisk
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|
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### NetBeans ###
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|
nbproject/private/
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|
build/
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|
nbbuild/
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|
dist/
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nbdist/
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.nb-gradle/
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### Windows ###
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# Windows thumbnail cache files
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|
Thumbs.db
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|
ehthumbs.db
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|
ehthumbs_vista.db
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|
*.stackdump
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|
[Dd]esktop.ini
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|
$RECYCLE.BIN/
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|
*.lnk
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|
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### Gradle ###
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.gradle
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/build/
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out/
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|
gradle-app.setting
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|
!gradle-wrapper.jar
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.gradletasknamecache
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40
build.gradle.kts
Normal file
40
build.gradle.kts
Normal file
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import org.jagrkt.submitter.submit
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plugins {
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java
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application
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id("org.jagrkt.submitter").version("0.3.1")
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}
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submit {
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assignmentId = "h07" // do not change assignmentId
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studentId = null
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firstName = null
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lastName = null
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|
// Optionally require tests for prepareSubmission task. Default is true
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requireTests = true
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}
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repositories {
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mavenCentral()
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}
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dependencies {
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// JUnit only available in "test" source set (./src/test)
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testImplementation("org.junit.jupiter:junit-jupiter:5.7.1")
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|
}
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java {
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sourceCompatibility = JavaVersion.VERSION_11
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targetCompatibility = JavaVersion.VERSION_11
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|
}
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|
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|
application {
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mainClass.set("h07.Main")
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|
}
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|
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|
tasks {
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|
test {
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useJUnitPlatform()
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|
}
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|
}
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BIN
gradle/wrapper/gradle-wrapper.jar
vendored
Normal file
BIN
gradle/wrapper/gradle-wrapper.jar
vendored
Normal file
Binary file not shown.
5
gradle/wrapper/gradle-wrapper.properties
vendored
Normal file
5
gradle/wrapper/gradle-wrapper.properties
vendored
Normal file
@ -0,0 +1,5 @@
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|
distributionBase=GRADLE_USER_HOME
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|
distributionPath=wrapper/dists
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|
distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-all.zip
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zipStoreBase=GRADLE_USER_HOME
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zipStorePath=wrapper/dists
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184
gradlew
vendored
Normal file
184
gradlew
vendored
Normal file
@ -0,0 +1,184 @@
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|
#!/usr/bin/env sh
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|
#
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|
# Copyright 2015 the original author or authors.
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|
#
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|
# Licensed under the Apache License, Version 2.0 (the "License");
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|
# you may not use this file except in compliance with the License.
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|
# You may obtain a copy of the License at
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|
#
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|
# https://www.apache.org/licenses/LICENSE-2.0
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|
#
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|
# Unless required by applicable law or agreed to in writing, software
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|
# distributed under the License is distributed on an "AS IS" BASIS,
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|
# 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.
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||||||
|
#
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||||||
|
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||||||
|
##############################################################################
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|
##
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||||||
|
## Gradle start up script for UN*X
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||||||
|
##
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|
##############################################################################
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|
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|
# Attempt to set APP_HOME
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|
# Resolve links: $0 may be a link
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|
PRG="$0"
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|
# Need this for relative symlinks.
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|
while [ -h "$PRG" ]; do
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|
ls=$(ls -ld "$PRG")
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|
link=$(expr "$ls" : '.*-> \(.*\)$')
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|
if expr "$link" : '/.*' >/dev/null; then
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|
PRG="$link"
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|
else
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|
PRG=$(dirname "$PRG")"/$link"
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|
fi
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|
done
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|
SAVED="$(pwd)"
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|
cd "$(dirname \"$PRG\")/" >/dev/null
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|
APP_HOME="$(pwd -P)"
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|
cd "$SAVED" >/dev/null
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|
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|
APP_NAME="Gradle"
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|
APP_BASE_NAME=$(basename "$0")
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|
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|
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
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|
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
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|
# Use the maximum available, or set MAX_FD != -1 to use that value.
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|
MAX_FD="maximum"
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|
warn() {
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|
echo "$*"
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|
}
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|
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|
die() {
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|
echo
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|
echo "$*"
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|
echo
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|
exit 1
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|
}
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|
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# OS specific support (must be 'true' or 'false').
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|
cygwin=false
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|
msys=false
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|
darwin=false
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|
nonstop=false
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|
case "$(uname)" in
|
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|
CYGWIN*)
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|
cygwin=true
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|
;;
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|
Darwin*)
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|
darwin=true
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|
;;
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|
MINGW*)
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|
msys=true
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||||||
|
;;
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|
NONSTOP*)
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|
nonstop=true
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|
;;
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|
esac
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|
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|
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
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|
|
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|
# Determine the Java command to use to start the JVM.
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|
if [ -n "$JAVA_HOME" ]; then
|
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|
if [ -x "$JAVA_HOME/jre/sh/java" ]; then
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|
# IBM's JDK on AIX uses strange locations for the executables
|
||||||
|
JAVACMD="$JAVA_HOME/jre/sh/java"
|
||||||
|
else
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|
JAVACMD="$JAVA_HOME/bin/java"
|
||||||
|
fi
|
||||||
|
if [ ! -x "$JAVACMD" ]; then
|
||||||
|
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
|
||||||
|
|
||||||
|
Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
location of your Java installation."
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
JAVACMD="java"
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||||||
|
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
|
||||||
|
|
||||||
|
Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
location of your Java installation."
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Increase the maximum file descriptors if we can.
|
||||||
|
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ]; then
|
||||||
|
MAX_FD_LIMIT=$(ulimit -H -n)
|
||||||
|
if [ $? -eq 0 ]; then
|
||||||
|
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ]; then
|
||||||
|
MAX_FD="$MAX_FD_LIMIT"
|
||||||
|
fi
|
||||||
|
ulimit -n $MAX_FD
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
warn "Could not set maximum file descriptor limit: $MAX_FD"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# For Darwin, add options to specify how the application appears in the dock
|
||||||
|
if $darwin; then
|
||||||
|
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
|
||||||
|
fi
|
||||||
|
|
||||||
|
# For Cygwin or MSYS, switch paths to Windows format before running java
|
||||||
|
if [ "$cygwin" = "true" -o "$msys" = "true" ]; then
|
||||||
|
APP_HOME=$(cygpath --path --mixed "$APP_HOME")
|
||||||
|
CLASSPATH=$(cygpath --path --mixed "$CLASSPATH")
|
||||||
|
|
||||||
|
JAVACMD=$(cygpath --unix "$JAVACMD")
|
||||||
|
|
||||||
|
# We build the pattern for arguments to be converted via cygpath
|
||||||
|
ROOTDIRSRAW=$(find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null)
|
||||||
|
SEP=""
|
||||||
|
for dir in $ROOTDIRSRAW; do
|
||||||
|
ROOTDIRS="$ROOTDIRS$SEP$dir"
|
||||||
|
SEP="|"
|
||||||
|
done
|
||||||
|
OURCYGPATTERN="(^($ROOTDIRS))"
|
||||||
|
# Add a user-defined pattern to the cygpath arguments
|
||||||
|
if [ "$GRADLE_CYGPATTERN" != "" ]; then
|
||||||
|
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
|
||||||
|
fi
|
||||||
|
# Now convert the arguments - kludge to limit ourselves to /bin/sh
|
||||||
|
i=0
|
||||||
|
for arg in "$@"; do
|
||||||
|
CHECK=$(echo "$arg" | egrep -c "$OURCYGPATTERN" -)
|
||||||
|
CHECK2=$(echo "$arg" | egrep -c "^-") ### Determine if an option
|
||||||
|
|
||||||
|
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ]; then ### Added a condition
|
||||||
|
eval $(echo args$i)=$(cygpath --path --ignore --mixed "$arg")
|
||||||
|
else
|
||||||
|
eval $(echo args$i)="\"$arg\""
|
||||||
|
fi
|
||||||
|
i=$(expr $i + 1)
|
||||||
|
done
|
||||||
|
case $i in
|
||||||
|
0) set -- ;;
|
||||||
|
1) set -- "$args0" ;;
|
||||||
|
2) set -- "$args0" "$args1" ;;
|
||||||
|
3) set -- "$args0" "$args1" "$args2" ;;
|
||||||
|
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
|
||||||
|
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
|
||||||
|
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
|
||||||
|
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
|
||||||
|
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
|
||||||
|
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Escape application args
|
||||||
|
save() {
|
||||||
|
for i; do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/"; done
|
||||||
|
echo " "
|
||||||
|
}
|
||||||
|
APP_ARGS=$(save "$@")
|
||||||
|
|
||||||
|
# Collect all arguments for the java command, following the shell quoting and substitution rules
|
||||||
|
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
|
||||||
|
|
||||||
|
exec "$JAVACMD" "$@"
|
||||||
89
gradlew.bat
vendored
Normal file
89
gradlew.bat
vendored
Normal file
@ -0,0 +1,89 @@
|
|||||||
|
@rem
|
||||||
|
@rem Copyright 2015 the original author or authors.
|
||||||
|
@rem
|
||||||
|
@rem Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
@rem you may not use this file except in compliance with the License.
|
||||||
|
@rem 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, software
|
||||||
|
@rem distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
@rem See the License for the specific language governing permissions and
|
||||||
|
@rem limitations under the License.
|
||||||
|
@rem
|
||||||
|
|
||||||
|
@if "%DEBUG%" == "" @echo off
|
||||||
|
@rem ##########################################################################
|
||||||
|
@rem
|
||||||
|
@rem Gradle startup script for Windows
|
||||||
|
@rem
|
||||||
|
@rem ##########################################################################
|
||||||
|
|
||||||
|
@rem Set local scope for the variables with windows NT shell
|
||||||
|
if "%OS%"=="Windows_NT" setlocal
|
||||||
|
|
||||||
|
set DIRNAME=%~dp0
|
||||||
|
if "%DIRNAME%" == "" set DIRNAME=.
|
||||||
|
set APP_BASE_NAME=%~n0
|
||||||
|
set APP_HOME=%DIRNAME%
|
||||||
|
|
||||||
|
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
|
||||||
|
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
|
||||||
|
|
||||||
|
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
|
||||||
|
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
|
||||||
|
|
||||||
|
@rem Find java.exe
|
||||||
|
if defined JAVA_HOME goto findJavaFromJavaHome
|
||||||
|
|
||||||
|
set JAVA_EXE=java.exe
|
||||||
|
%JAVA_EXE% -version >NUL 2>&1
|
||||||
|
if "%ERRORLEVEL%" == "0" goto execute
|
||||||
|
|
||||||
|
echo.
|
||||||
|
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
|
||||||
|
echo.
|
||||||
|
echo Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
echo location of your Java installation.
|
||||||
|
|
||||||
|
goto fail
|
||||||
|
|
||||||
|
:findJavaFromJavaHome
|
||||||
|
set JAVA_HOME=%JAVA_HOME:"=%
|
||||||
|
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
|
||||||
|
|
||||||
|
if exist "%JAVA_EXE%" goto execute
|
||||||
|
|
||||||
|
echo.
|
||||||
|
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
|
||||||
|
echo.
|
||||||
|
echo Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
echo location of your Java installation.
|
||||||
|
|
||||||
|
goto fail
|
||||||
|
|
||||||
|
:execute
|
||||||
|
@rem Setup the command line
|
||||||
|
|
||||||
|
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
|
||||||
|
|
||||||
|
|
||||||
|
@rem Execute Gradle
|
||||||
|
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
|
||||||
|
|
||||||
|
:end
|
||||||
|
@rem End local scope for the variables with windows NT shell
|
||||||
|
if "%ERRORLEVEL%"=="0" goto mainEnd
|
||||||
|
|
||||||
|
:fail
|
||||||
|
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
|
||||||
|
rem the _cmd.exe /c_ return code!
|
||||||
|
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
|
||||||
|
exit /b 1
|
||||||
|
|
||||||
|
:mainEnd
|
||||||
|
if "%OS%"=="Windows_NT" endlocal
|
||||||
|
|
||||||
|
:omega
|
||||||
1
settings.gradle.kts
Normal file
1
settings.gradle.kts
Normal file
@ -0,0 +1 @@
|
|||||||
|
rootProject.name = "AuD-2021-H07-Student"
|
||||||
7
src/main/java/h07/Main.java
Normal file
7
src/main/java/h07/Main.java
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
package h07;
|
||||||
|
|
||||||
|
public class Main {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
System.out.println("Hello World!");
|
||||||
|
}
|
||||||
|
}
|
||||||
24
src/main/java/h07/algebra/Monoid.java
Normal file
24
src/main/java/h07/algebra/Monoid.java
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
package h07.algebra;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Modelliert eine binäre Operation über einem Datentypen mit neutralem Element.
|
||||||
|
*
|
||||||
|
* @param <M> die Trägermenge des Monoids
|
||||||
|
*/
|
||||||
|
public interface Monoid<M> {
|
||||||
|
/**
|
||||||
|
* Liefert das neutrale Element dieses Monoids.
|
||||||
|
*
|
||||||
|
* @return das neutrale Element dieses Monoids
|
||||||
|
*/
|
||||||
|
M zero();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Die Verknüpfung zweier Operanden durch das Monoid.
|
||||||
|
*
|
||||||
|
* @param a der erste Operand
|
||||||
|
* @param b der zweite Operand
|
||||||
|
* @return das Ergebnis der Verknüpfung beider Operanden
|
||||||
|
*/
|
||||||
|
M add(M a, M b);
|
||||||
|
}
|
||||||
14
src/main/java/h07/algorithm/ShortestPathsAlgorithm.java
Normal file
14
src/main/java/h07/algorithm/ShortestPathsAlgorithm.java
Normal file
@ -0,0 +1,14 @@
|
|||||||
|
package h07.algorithm;
|
||||||
|
|
||||||
|
import h07.algebra.Monoid;
|
||||||
|
import h07.graph.DirectedGraph;
|
||||||
|
import h07.graph.Path;
|
||||||
|
|
||||||
|
import java.util.Comparator;
|
||||||
|
import java.util.Map;
|
||||||
|
|
||||||
|
public interface ShortestPathsAlgorithm<V, A> {
|
||||||
|
Map<V, Path<V, A>> shortestPaths(
|
||||||
|
DirectedGraph<V, A> graph, V startNode,
|
||||||
|
Monoid<A> monoid, Comparator<? super A> comparator);
|
||||||
|
}
|
||||||
51
src/main/java/h07/experiment/RoadTrip.java
Normal file
51
src/main/java/h07/experiment/RoadTrip.java
Normal file
@ -0,0 +1,51 @@
|
|||||||
|
package h07.experiment;
|
||||||
|
|
||||||
|
/*
|
||||||
|
import h07.algebra.IntegerAddition;
|
||||||
|
import h07.algorithm.Dijkstra;
|
||||||
|
import h07.graph.AdjacencyMatrixFactory;
|
||||||
|
*/
|
||||||
|
|
||||||
|
public class RoadTrip {
|
||||||
|
public static void main(String[] args) {
|
||||||
|
String[] nodes = {
|
||||||
|
"München",
|
||||||
|
"Augsburg",
|
||||||
|
"Karlsruhe",
|
||||||
|
"Erfurt",
|
||||||
|
"Nürnberg",
|
||||||
|
"Kassel",
|
||||||
|
"Würzburg",
|
||||||
|
"Stuttgart",
|
||||||
|
"Mannheim",
|
||||||
|
"Frankfurt"
|
||||||
|
};
|
||||||
|
|
||||||
|
Integer[][] adjacencyMatrix = {
|
||||||
|
{null, 84, null, null, 167, 502, null, null, null, null},
|
||||||
|
{84, null, 250, null, null, null, null, null, null, null},
|
||||||
|
{null, 250, null, null, null, null, null, null, 80, null},
|
||||||
|
{null, null, null, null, null, null, 186, null, null, null},
|
||||||
|
{167, null, null, null, null, null, 103, 183, null, null},
|
||||||
|
{502, null, null, null, null, null, null, null, null, 173},
|
||||||
|
{null, null, null, 186, 103, null, null, null, null, 217},
|
||||||
|
{null, null, null, null, 183, null, null, null, null, null},
|
||||||
|
{null, null, 80, null, null, null, null, null, null, 85},
|
||||||
|
{null, null, null, null, null, 173, 217, null, 85, null}
|
||||||
|
};
|
||||||
|
/*
|
||||||
|
var factory = new AdjacencyMatrixFactory<>(nodes, adjacencyMatrix);
|
||||||
|
var graph = factory.createDirectedGraph();
|
||||||
|
|
||||||
|
var dijkstra = new Dijkstra<String, Integer>();
|
||||||
|
var paths = dijkstra.shortestPaths(
|
||||||
|
graph, "Frankfurt",
|
||||||
|
new IntegerAddition(),
|
||||||
|
Comparator.naturalOrder());
|
||||||
|
|
||||||
|
// Sollte "Frankfurt -217-> Würzburg -103-> Nürnberg -167-> München"
|
||||||
|
// ausgeben.
|
||||||
|
System.out.println(paths.get("München"));
|
||||||
|
*/
|
||||||
|
}
|
||||||
|
}
|
||||||
17
src/main/java/h07/graph/AbstractPath.java
Normal file
17
src/main/java/h07/graph/AbstractPath.java
Normal file
@ -0,0 +1,17 @@
|
|||||||
|
package h07.graph;
|
||||||
|
|
||||||
|
abstract class AbstractPath<V, A> implements Path<V, A> {
|
||||||
|
@Override
|
||||||
|
public String toString() {
|
||||||
|
var traverser = traverser();
|
||||||
|
var builder = new StringBuilder(traverser.getCurrentNode().toString());
|
||||||
|
while (traverser.hasNextNode()) {
|
||||||
|
builder.append(" -");
|
||||||
|
builder.append(traverser.getDistanceToNextNode());
|
||||||
|
traverser.walkToNextNode();
|
||||||
|
builder.append("-> ");
|
||||||
|
builder.append(traverser.getCurrentNode());
|
||||||
|
}
|
||||||
|
return builder.toString();
|
||||||
|
}
|
||||||
|
}
|
||||||
108
src/main/java/h07/graph/DirectedGraph.java
Normal file
108
src/main/java/h07/graph/DirectedGraph.java
Normal file
@ -0,0 +1,108 @@
|
|||||||
|
package h07.graph;
|
||||||
|
|
||||||
|
import java.util.Collection;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Repräsentiert einen endlichen gerichteten Graphen mit gewichteten Kanten.
|
||||||
|
*
|
||||||
|
* @param <V> der Typ der Knoten dieses Graphen
|
||||||
|
* @param <A> der Typ der Kantengewichte dieses Graphen
|
||||||
|
*/
|
||||||
|
public interface DirectedGraph<V, A> {
|
||||||
|
/**
|
||||||
|
* Liefert alle Knoten dieses Graphen als unveränderliche
|
||||||
|
* {@link java.util.Collection} von Knoten.
|
||||||
|
*
|
||||||
|
* @return eine unveränderliche {@link java.util.Collection} mit allen
|
||||||
|
* Knoten dieses Graphen als Elemente
|
||||||
|
*/
|
||||||
|
Collection<V> getAllNodes();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Liefert die Kinder eines Knoten als unveränderliche
|
||||||
|
* {@link java.util.Collection} von Knoten.
|
||||||
|
*
|
||||||
|
* @param node der Knoten, dessen Kinder abgefragt werden sollen
|
||||||
|
* @return eine unveränderliche {@link java.util.Collection} mit den Kindern
|
||||||
|
* des übergebenen Knoten als Elemente
|
||||||
|
* @throws NullPointerException falls der übergebene Knoten {@code null} ist
|
||||||
|
* @throws java.util.NoSuchElementException falls der übergebene Knoten
|
||||||
|
* nicht in diesem Graphen existiert
|
||||||
|
*/
|
||||||
|
Collection<V> getChildrenForNode(V node);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Liefert das Gewicht der Kante zwischen zwei Knoten.
|
||||||
|
*
|
||||||
|
* @param from der Knoten, von dem die Kante ausgeht
|
||||||
|
* @param to der Knoten, auf den die Kante zeigt
|
||||||
|
* @return das Gewicht der Kante zwischen den beiden Knoten
|
||||||
|
* @throws NullPointerException falls für einen der beiden Knoten
|
||||||
|
* {@code null} als Parameter übergeben wird
|
||||||
|
* @throws java.util.NoSuchElementException falls einer der beiden Knoten
|
||||||
|
* nicht in diesem Graphen existiert oder falls keine Kante vom
|
||||||
|
* ersten zum zweiten Knoten existiert
|
||||||
|
*/
|
||||||
|
A getArcWeightBetween(V from, V to);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Fügt diesem Graphen einen Knoten hinzu, der bisher noch nicht im Graphen
|
||||||
|
* enthalten ist.
|
||||||
|
*
|
||||||
|
* @param node der Knoten, der hinzugefügt werden soll
|
||||||
|
* @throws NullPointerException falls der hinzuzufügende Knoten {@code null}
|
||||||
|
* ist
|
||||||
|
* @throws IllegalArgumentException falls der übergebene Knoten bereits in
|
||||||
|
* diesem Graphen enthalten ist
|
||||||
|
* @throws UnsupportedOperationException falls das Hinzufügen von Knoten von
|
||||||
|
* diesem Graphen nicht unterstützt wird
|
||||||
|
*/
|
||||||
|
void addNode(V node);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Entfernt einen Knoten aus diesem Graphen.
|
||||||
|
* Gleichzeitig werden alle vom zu entfernenden Knoten ausgehenden Kanten
|
||||||
|
* aus diesem Graphen gelöscht.
|
||||||
|
*
|
||||||
|
* @param node der Knoten, der entfernt werden soll
|
||||||
|
* @throws NullPointerException falls der zu entfernende Knoten {@code null}
|
||||||
|
* ist
|
||||||
|
* @throws java.util.NoSuchElementException falls der übergebene Knoten
|
||||||
|
* nicht in diesem Graphen enthalten ist
|
||||||
|
* @throws UnsupportedOperationException falls das Entfernen von Knoten von
|
||||||
|
* diesem Graphen nicht unterstützt wird
|
||||||
|
*/
|
||||||
|
void removeNode(V node);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Verbindet zwei Knoten mit einer Kante.
|
||||||
|
*
|
||||||
|
* @param from der Knoten von dem aus die neue Kante ausgehen soll
|
||||||
|
* @param weight das Gewicht der neuen Kante
|
||||||
|
* @param to der Knoten, auf den die neue Kante zeigen soll
|
||||||
|
* @throws NullPointerException falls für einen der Parameter {@code null}
|
||||||
|
* übergeben wird
|
||||||
|
* @throws java.util.NoSuchElementException falls einer der beiden Knoten
|
||||||
|
* nicht in diesem Graphen existiert
|
||||||
|
* @throws IllegalArgumentException falls bereits eine Kante vom ersten zum
|
||||||
|
* zweiten Knoten existiert
|
||||||
|
* @throws UnsupportedOperationException falls das Hinzufügen von Kanten von
|
||||||
|
* diesem Graphen nicht unterstützt wird
|
||||||
|
*/
|
||||||
|
void connectNodes(V from, A weight, V to);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Entfernt die bestehende Kante zwischen zwei Knoten.
|
||||||
|
*
|
||||||
|
* @param from der Knoten, von dem die zu löschende Kante ausgeht
|
||||||
|
* @param to der Knoten, auf den die zu löschende Kante zeigt
|
||||||
|
* @throws NullPointerException falls für einen der beiden Knoten
|
||||||
|
* {@code null} als Parameter übergeben wird
|
||||||
|
* @throws java.util.NoSuchElementException falls einer der beiden Knoten
|
||||||
|
* nicht in diesem Graphen existiert oder falls keine Kante vom
|
||||||
|
* ersten zum zweiten Knoten existiert
|
||||||
|
* @throws UnsupportedOperationException falls das Entfernen von Kanten von
|
||||||
|
* diesem Graphen nicht unterstützt wird
|
||||||
|
*/
|
||||||
|
void disconnectNodes(V from, V to);
|
||||||
|
}
|
||||||
16
src/main/java/h07/graph/DirectedGraphFactory.java
Normal file
16
src/main/java/h07/graph/DirectedGraphFactory.java
Normal file
@ -0,0 +1,16 @@
|
|||||||
|
package h07.graph;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Eine abstrakte Fabrik zum Erzeugen von {@link DirectedGraph}-Objekten.
|
||||||
|
*
|
||||||
|
* @param <V> der Typ der Knoten dieses Graphen
|
||||||
|
* @param <A> der Typ der Kantengewichte dieses Graphen
|
||||||
|
*/
|
||||||
|
public interface DirectedGraphFactory<V, A> {
|
||||||
|
/**
|
||||||
|
* Erzeugt einen {@link DirectedGraph}.
|
||||||
|
*
|
||||||
|
* @return der {@code DirectedGraph}, der von dieses Fabrik erzeugt wird.
|
||||||
|
*/
|
||||||
|
DirectedGraph<V, A> createDirectedGraph();
|
||||||
|
}
|
||||||
138
src/main/java/h07/graph/Path.java
Normal file
138
src/main/java/h07/graph/Path.java
Normal file
@ -0,0 +1,138 @@
|
|||||||
|
package h07.graph;
|
||||||
|
|
||||||
|
import java.util.Objects;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Repräsentiert einen gewichteten Pfad als Teilmenge eines endlichen
|
||||||
|
* gerichteten Graphs.
|
||||||
|
*
|
||||||
|
* @param <V> der Typ der Knoten dieses Pfades
|
||||||
|
* @param <A> der Typ der Kantengewichte dieses Pfades
|
||||||
|
*/
|
||||||
|
public interface Path<V, A> extends Iterable<V> {
|
||||||
|
/**
|
||||||
|
* Dieses Interface ermöglicht das Traversieren eines gerichteten Pfades.
|
||||||
|
* Dabei läuft der {@code Traverser} von Knoten zu Knoten unter
|
||||||
|
* Berücksichtigung der Gewichte der Kanten zwischen den Knoten.
|
||||||
|
* Den Knoten, auf dem sich ein {@code Traverser} zu einem gegebenen
|
||||||
|
* Zeitpunkt befindet, nennen wir den <em>aktuell betrachteten Knoten</em>.
|
||||||
|
*
|
||||||
|
* @param <V> der Typ der Knoten, über die dieser {@code Traverser} läuft
|
||||||
|
* @param <A> der Typ der Gewichte der Kanten, die zwischen den einzelnen
|
||||||
|
* Knoten liegen
|
||||||
|
*/
|
||||||
|
interface Traverser<V, A> {
|
||||||
|
/**
|
||||||
|
* Liefert den von diesem {@code Traverser} aktuell betrachteten Knoten.
|
||||||
|
*
|
||||||
|
* @return der aktuell betrachtete Knoten
|
||||||
|
*/
|
||||||
|
V getCurrentNode();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Liefert das Gewicht der Kante vom aktuell betrachteten Knoten zu
|
||||||
|
* seinem Nachfolgeknoten.
|
||||||
|
*
|
||||||
|
* @return die Distanz zum nächsten Knoten.
|
||||||
|
* @throws IllegalStateException falls es sich beim aktuell betrachteten
|
||||||
|
* Knoten um den letzten Knoten im Pfad dieses
|
||||||
|
* {@code Traverser}s handelt
|
||||||
|
*/
|
||||||
|
A getDistanceToNextNode();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @throws java.util.NoSuchElementException falls es sich beim aktuell
|
||||||
|
* betrachteten Knoten um den letzten Knoten im Pfad dieses
|
||||||
|
* {@code Traverser}s handelt.
|
||||||
|
*/
|
||||||
|
void walkToNextNode();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Zeigt an, ob der aktuell betrachtete Knoten einen Nachfolgeknoten
|
||||||
|
* besitzt.
|
||||||
|
*
|
||||||
|
* @return {@code true} genau dann, wenn es sich beim aktuell
|
||||||
|
* betrachteten Knoten nicht um den letzten Knoten im Pfad
|
||||||
|
* dieses {@code Traverser}s handelt
|
||||||
|
*/
|
||||||
|
boolean hasNextNode();
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Liefert einen {@link Traverser}, mit dem sich dieser Pfad traversieren
|
||||||
|
* lässt.
|
||||||
|
* Beim aktuell betrachteten Knoten des {@code Traverser}s handelt es sich
|
||||||
|
* zunächst um den ersten Knoten in diesem Pfad.
|
||||||
|
*
|
||||||
|
* @return ein {@code Traverser} für diesen Pfad
|
||||||
|
*/
|
||||||
|
Traverser<V, A> traverser();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Erzeugt einen neuen Pfad aus den Knoten und Kanten dieses Pfades und
|
||||||
|
* einem weiteren Knoten.
|
||||||
|
* Dieser wird durch eine neue Kante an den letzten Knoten dieses Pfades
|
||||||
|
* angehängt.
|
||||||
|
* Dieser Pfad wird durch diese Methode jedoch nicht verändert.
|
||||||
|
*
|
||||||
|
* @param node der Knoten, der im neuen Pfad an den letzten Knoten
|
||||||
|
* dieses Pfades angehängt werden soll
|
||||||
|
* @param distance das Gewicht der neuen Kante, mit der der neue Knoten mit
|
||||||
|
* dem letzten Knoten dieses Pfades verbunden werden soll
|
||||||
|
* @return eine Kopie dieses Pfades mit einem zusätzlichen Knoten
|
||||||
|
* @throws NullPointerException falls der neue Knoten oder das Gewicht der
|
||||||
|
* neuen Kante {@code null} ist
|
||||||
|
*/
|
||||||
|
Path<V, A> concat(V node, A distance);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Erzeugt einen gewichteten Pfad mit einem Knoten.
|
||||||
|
*
|
||||||
|
* @param v1 der erste Knoten im Pfad
|
||||||
|
* @param <V> der Typ der Knoten des erzeugten Pfades
|
||||||
|
* @param <A> der Typ der Kantengewichte erzeugten Pfades
|
||||||
|
* @return ein Pfad mit dem übergebenen Knoten
|
||||||
|
* @throws NullPointerException falls der Knoten {@code null} ist
|
||||||
|
*/
|
||||||
|
static <V, A> Path<V, A> of(V v1) {
|
||||||
|
throw new UnsupportedOperationException("Noch nicht implementiert.");
|
||||||
|
/*
|
||||||
|
Objects.requireNonNull(v1, "Der Knoten eines Pfades darf nicht null sein");
|
||||||
|
return new PathImpl<>(v1);
|
||||||
|
*/
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Erzeugt einen gewichteten Pfad mit zwei Knoten.
|
||||||
|
*
|
||||||
|
* @param v1 der erste Knoten im Pfad
|
||||||
|
* @param w1 das Gewicht der Kante vom ersten zum zweiten Knoten
|
||||||
|
* @param v2 der zweite Knoten im Pfad
|
||||||
|
* @param <V> der Typ der Knoten des erzeugten Pfades
|
||||||
|
* @param <A> der Typ der Kantengewichte erzeugten Pfades
|
||||||
|
* @return ein Pfad mit den übergebenen Knoten und Kantengewichten
|
||||||
|
* @throws NullPointerException falls einer der Knoten oder eines der
|
||||||
|
* Kantengewichte {@code null} ist
|
||||||
|
*/
|
||||||
|
static <V, A> Path<V, A> of(V v1, A w1, V v2) {
|
||||||
|
return Path.<V, A>of(v1).concat(v2, w1);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Erzeugt einen gewichteten Pfad mit drei Knoten.
|
||||||
|
*
|
||||||
|
* @param v1 der erste Knoten im Pfad
|
||||||
|
* @param w1 das Gewicht der Kante vom ersten zum zweiten Knoten
|
||||||
|
* @param v2 der zweite Knoten im Pfad
|
||||||
|
* @param w2 das Gewicht der Kante vom zweiten zum dritten Knoten
|
||||||
|
* @param v3 der dritte Knoten im Pfad
|
||||||
|
* @param <V> der Typ der Knoten des erzeugten Pfades
|
||||||
|
* @param <A> der Typ der Kantengewichte erzeugten Pfades
|
||||||
|
* @return ein Pfad mit den übergebenen Knoten und Kantengewichten
|
||||||
|
* @throws NullPointerException falls einer der Knoten oder eines der
|
||||||
|
* Kantengewichte {@code null} ist
|
||||||
|
*/
|
||||||
|
static <V, A> Path<V, A> of(V v1, A w1, V v2, A w2, V v3) {
|
||||||
|
return Path.of(v1, w1, v2).concat(v3, w2);
|
||||||
|
}
|
||||||
|
}
|
||||||
13
src/test/java/h07/ExampleJUnitTest.java
Normal file
13
src/test/java/h07/ExampleJUnitTest.java
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
package h07;
|
||||||
|
|
||||||
|
import org.junit.jupiter.api.Test;
|
||||||
|
|
||||||
|
import static org.junit.jupiter.api.Assertions.*;
|
||||||
|
|
||||||
|
public class ExampleJUnitTest {
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testAddition() {
|
||||||
|
assertEquals(2, 1 + 1);
|
||||||
|
}
|
||||||
|
}
|
||||||
Reference in New Issue
Block a user