commit ab934fea496f1a89f54a6447428525fbb5e9d273 Author: Alexander Baranov Date: Mon Oct 17 09:54:32 2022 +0300 initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..7f1e9d6 --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +/.idea/ +/**/.gradle/ +/**/build/ \ No newline at end of file diff --git a/README b/README new file mode 100644 index 0000000..c917237 --- /dev/null +++ b/README @@ -0,0 +1,45 @@ +:samples-dir: /home/tcagent1/agent/work/64493a816be20d5a/promote-projects/gradle/build/git-checkout/subprojects/docs/build/working/samples/install/java-modules-multi-project +:gradle-version: 7.5.1-20220727220835+0000 + += Building Java Modules Sample + +[.download] +- link:zips/sample_java_modules_multi_project-groovy-dsl.zip[icon:download[] Groovy DSL] +- link:zips/sample_java_modules_multi_project-kotlin-dsl.zip[icon:download[] Kotlin DSL] + +NOTE: You can open this sample inside an IDE using the https://www.jetbrains.com/help/idea/gradle.html#gradle_import_project_start[IntelliJ's Gradle import] or https://projects.eclipse.org/projects/tools.buildship[Eclipse Buildship]. + +This sample shows how to create a multi-project containing https://www.oracle.com/corporate/features/understanding-java-9-modules.html[Java Modules]. +Java Modules are a feature of Java itself, available since Java 9, that allows for better encapsulation. + +In Gradle, each _source set_ containing Java sources can be turned into a module by adding a `module-info.java` file. +Typically, in a project with Java Modules like this one, the _main_ source set of a subproject represents a module. + +``` +src +└── main + └── java + └── module-info.java +``` + +In the `module-info.java` file you define dependencies to other modules using keywords like `requires` or `requires transitive`. +These correspond to the `implementation` and `api` dependencies defined in the Gradle build file. +In addition, a module `exports` packages that should be visible to consumers. +Other packages are not visible outside of the module. + +``` +module org.gradle.sample.utilities { + requires transitive org.gradle.sample.list; + exports org.gradle.sample.utilities; +} +``` + +Unit (whitebox) tests that need to access the internals of a module can be written in the traditional way by **not** adding a `module-info.java` to the test source set. +In test execution, the modules are then treated as standard Java libraries with the encapsulation deactivated. + +Blackbox (e.g. integration) tests, which should also follow the encapsulation rules during test execution, can be written by turning the corresponding test sources set itself into a module by adding a `module-info.java`. +This is shown in link:sample_java_modules_multi_project_with_integration_tests.html[this extended sample]. + +For more information, see link:{userManualPath}/java_library_plugin.html#sec:java_library_modular[Java Module support in the Java Library Plugin], +link:{userManualPath}/application_plugin.html#sec:application_modular[Java Module support in the Application Plugin] and +link:{userManualPath}/java_testing.html#sec:java_testing_modular[testing Java Modules]. diff --git a/application/build.gradle b/application/build.gradle new file mode 100644 index 0000000..d0ecf88 --- /dev/null +++ b/application/build.gradle @@ -0,0 +1,13 @@ +plugins { + id 'myproject.java-conventions' + id 'application' +} + +dependencies { + implementation project(':utilities') +} + +application { + mainModule = 'org.gradle.sample.app' + mainClass = 'org.gradle.sample.app.Main' +} diff --git a/application/src/main/java/module-info.java b/application/src/main/java/module-info.java new file mode 100644 index 0000000..9456a8b --- /dev/null +++ b/application/src/main/java/module-info.java @@ -0,0 +1,4 @@ +module org.gradle.sample.app { + exports org.gradle.sample.app; + requires org.gradle.sample.utilities; +} diff --git a/application/src/main/java/org/gradle/sample/app/Main.java b/application/src/main/java/org/gradle/sample/app/Main.java new file mode 100644 index 0000000..a3770f5 --- /dev/null +++ b/application/src/main/java/org/gradle/sample/app/Main.java @@ -0,0 +1,15 @@ +package org.gradle.sample.app; + +import org.gradle.sample.list.LinkedList; + +import static org.gradle.sample.utilities.StringUtils.join; +import static org.gradle.sample.utilities.StringUtils.split; +import static org.gradle.sample.app.MessageUtils.getMessage; + +public class Main { + public static void main(String[] args) { + LinkedList tokens; + tokens = split(getMessage()); + System.out.println(join(tokens)); + } +} diff --git a/application/src/main/java/org/gradle/sample/app/MessageUtils.java b/application/src/main/java/org/gradle/sample/app/MessageUtils.java new file mode 100644 index 0000000..e5df2f9 --- /dev/null +++ b/application/src/main/java/org/gradle/sample/app/MessageUtils.java @@ -0,0 +1,7 @@ +package org.gradle.sample.app; + +class MessageUtils { + public static String getMessage() { + return "Hello, World!"; + } +} diff --git a/application/src/test/java/org/gradle/sample/app/MessageUtilsTest.java b/application/src/test/java/org/gradle/sample/app/MessageUtilsTest.java new file mode 100644 index 0000000..c9b17b0 --- /dev/null +++ b/application/src/test/java/org/gradle/sample/app/MessageUtilsTest.java @@ -0,0 +1,11 @@ +package org.gradle.sample.app; + +import org.junit.jupiter.api.Test; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +public class MessageUtilsTest { + @Test public void testGetMessage() { + assertEquals("Hello, World!", MessageUtils.getMessage()); + } +} diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle new file mode 100644 index 0000000..6784052 --- /dev/null +++ b/buildSrc/build.gradle @@ -0,0 +1,3 @@ +plugins { + id 'groovy-gradle-plugin' +} diff --git a/buildSrc/src/main/groovy/myproject.java-conventions.gradle b/buildSrc/src/main/groovy/myproject.java-conventions.gradle new file mode 100644 index 0000000..d6d8581 --- /dev/null +++ b/buildSrc/src/main/groovy/myproject.java-conventions.gradle @@ -0,0 +1,18 @@ +plugins { + id 'java' +} + +version = '1.0.2' +group = 'org.gradle.sample' + +repositories { + mavenCentral() +} + +tasks.named("test") { + useJUnitPlatform() +} + +dependencies { + testImplementation 'org.junit.jupiter:junit-jupiter:5.7.1' +} diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..249e583 Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..ae04661 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..a69d9cb --- /dev/null +++ b/gradlew @@ -0,0 +1,240 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +APP_NAME="Gradle" +APP_BASE_NAME=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..f127cfd --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,91 @@ +@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% equ 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% equ 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! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/list/build.gradle b/list/build.gradle new file mode 100644 index 0000000..78125b9 --- /dev/null +++ b/list/build.gradle @@ -0,0 +1,4 @@ +plugins { + id 'myproject.java-conventions' + id 'java-library' +} diff --git a/list/src/main/java/module-info.java b/list/src/main/java/module-info.java new file mode 100644 index 0000000..0d9079e --- /dev/null +++ b/list/src/main/java/module-info.java @@ -0,0 +1,3 @@ +module org.gradle.sample.list { + exports org.gradle.sample.list; +} diff --git a/list/src/main/java/org/gradle/sample/list/LinkedList.java b/list/src/main/java/org/gradle/sample/list/LinkedList.java new file mode 100644 index 0000000..a6c576e --- /dev/null +++ b/list/src/main/java/org/gradle/sample/list/LinkedList.java @@ -0,0 +1,78 @@ +package org.gradle.sample.list; + +public class LinkedList { + private Node head; + + public void add(String element) { + Node newNode = new Node(element); + + Node it = tail(head); + if (it == null) { + head = newNode; + } else { + it.next = newNode; + } + } + + private static Node tail(Node head) { + Node it; + + for (it = head; it != null && it.next != null; it = it.next) {} + + return it; + } + + public boolean remove(String element) { + boolean result = false; + Node previousIt = null; + Node it = null; + for (it = head; !result && it != null; previousIt = it, it = it.next) { + if (0 == element.compareTo(it.data)) { + result = true; + unlink(previousIt, it); + break; + } + } + + return result; + } + + private void unlink(Node previousIt, Node currentIt) { + if (currentIt == head) { + head = currentIt.next; + } else { + previousIt.next = currentIt.next; + } + } + + public int size() { + int size = 0; + + for (Node it = head; it != null; ++size, it = it.next) {} + + return size; + } + + public String get(int index) { + Node it = head; + while (index > 0 && it != null) { + it = it.next; + index--; + } + + if (it == null) { + throw new IndexOutOfBoundsException("Index is out of range"); + } + + return it.data; + } + + private static class Node { + final String data; + Node next; + + Node(String data) { + this.data = data; + } + } +} diff --git a/list/src/test/java/org/gradle/sample/list/LinkedListTest.java b/list/src/test/java/org/gradle/sample/list/LinkedListTest.java new file mode 100644 index 0000000..8c8eff0 --- /dev/null +++ b/list/src/test/java/org/gradle/sample/list/LinkedListTest.java @@ -0,0 +1,47 @@ +package org.gradle.sample.list; + +import org.junit.jupiter.api.Test; + +import static org.junit.jupiter.api.Assertions.*; + +public class LinkedListTest { + @Test public void testConstructor() { + LinkedList list = new LinkedList(); + assertEquals(0, list.size()); + } + + @Test public void testAdd() { + LinkedList list = new LinkedList(); + + list.add("one"); + assertEquals(1, list.size()); + assertEquals("one", list.get(0)); + + list.add("two"); + assertEquals(2, list.size()); + assertEquals("two", list.get(1)); + } + + @Test public void testRemove() { + LinkedList list = new LinkedList(); + + list.add("one"); + list.add("two"); + assertTrue(list.remove("one")); + + assertEquals(1, list.size()); + assertEquals("two", list.get(0)); + + assertTrue(list.remove("two")); + assertEquals(0, list.size()); + } + + @Test public void testRemoveMissing() { + LinkedList list = new LinkedList(); + + list.add("one"); + list.add("two"); + assertFalse(list.remove("three")); + assertEquals(2, list.size()); + } +} diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..cbf3fc5 --- /dev/null +++ b/settings.gradle @@ -0,0 +1,2 @@ +rootProject.name = 'modules-multi-project' +include 'application', 'list', 'utilities' diff --git a/utilities/build.gradle b/utilities/build.gradle new file mode 100644 index 0000000..d803dfd --- /dev/null +++ b/utilities/build.gradle @@ -0,0 +1,8 @@ +plugins { + id 'myproject.java-conventions' + id 'java-library' +} + +dependencies { + api project(':list') +} diff --git a/utilities/src/main/java/module-info.java b/utilities/src/main/java/module-info.java new file mode 100644 index 0000000..e613cc6 --- /dev/null +++ b/utilities/src/main/java/module-info.java @@ -0,0 +1,4 @@ +module org.gradle.sample.utilities { + requires transitive org.gradle.sample.list; + exports org.gradle.sample.utilities; +} diff --git a/utilities/src/main/java/org/gradle/sample/utilities/JoinUtils.java b/utilities/src/main/java/org/gradle/sample/utilities/JoinUtils.java new file mode 100644 index 0000000..45365d3 --- /dev/null +++ b/utilities/src/main/java/org/gradle/sample/utilities/JoinUtils.java @@ -0,0 +1,17 @@ +package org.gradle.sample.utilities; + +import org.gradle.sample.list.LinkedList; + +class JoinUtils { + public static String join(LinkedList source) { + StringBuilder result = new StringBuilder(); + for (int i = 0; i < source.size(); ++i) { + if (result.length() > 0) { + result.append(" "); + } + result.append(source.get(i)); + } + + return result.toString(); + } +} diff --git a/utilities/src/main/java/org/gradle/sample/utilities/SplitUtils.java b/utilities/src/main/java/org/gradle/sample/utilities/SplitUtils.java new file mode 100644 index 0000000..4016d85 --- /dev/null +++ b/utilities/src/main/java/org/gradle/sample/utilities/SplitUtils.java @@ -0,0 +1,36 @@ +package org.gradle.sample.utilities; + +import org.gradle.sample.list.LinkedList; + +class SplitUtils { + public static LinkedList split(String source) { + int lastFind = 0; + int currentFind = 0; + LinkedList result = new LinkedList(); + + while ((currentFind = source.indexOf(" ", lastFind)) != -1) { + String token = source.substring(lastFind); + if (currentFind != -1) { + token = token.substring(0, currentFind - lastFind); + } + + addIfValid(token, result); + lastFind = currentFind + 1; + } + + String token = source.substring(lastFind); + addIfValid(token, result); + + return result; + } + + private static void addIfValid(String token, LinkedList list) { + if (isTokenValid(token)) { + list.add(token); + } + } + + private static boolean isTokenValid(String token) { + return !token.isEmpty(); + } +} diff --git a/utilities/src/main/java/org/gradle/sample/utilities/StringUtils.java b/utilities/src/main/java/org/gradle/sample/utilities/StringUtils.java new file mode 100644 index 0000000..72a33b5 --- /dev/null +++ b/utilities/src/main/java/org/gradle/sample/utilities/StringUtils.java @@ -0,0 +1,13 @@ +package org.gradle.sample.utilities; + +import org.gradle.sample.list.LinkedList; + +public class StringUtils { + public static String join(LinkedList source) { + return JoinUtils.join(source); + } + + public static LinkedList split(String source) { + return SplitUtils.split(source); + } +}