diff --git a/.gitignore b/.gitignore index feb4ffd..cc39753 100644 --- a/.gitignore +++ b/.gitignore @@ -152,3 +152,5 @@ $RECYCLE.BIN/ # Windows shortcuts *.lnk +conf/*.json +truststore.p12 \ No newline at end of file diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..13566b8 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/compiler.xml b/.idea/compiler.xml new file mode 100644 index 0000000..b86273d --- /dev/null +++ b/.idea/compiler.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml new file mode 100644 index 0000000..fdc392f --- /dev/null +++ b/.idea/jarRepositories.xml @@ -0,0 +1,20 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..4b0bf0d --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..799cb87 --- /dev/null +++ b/build.gradle @@ -0,0 +1,25 @@ +plugins { + id 'java' + id 'com.github.johnrengelman.shadow' version '8.1.1' +} + +group = 'tech.nevets' +version = '0.1.0' + +repositories { + mavenCentral() +} + +dependencies { + implementation "commons-net:commons-net:3.11.1" + implementation "org.apache.commons:commons-compress:1.27.1" + implementation "com.google.code.gson:gson:2.11.0" +} + +jar { + manifest { + attributes( + 'Main-Class': 'tech.nevets.ubackup.client.Main' + ) + } +} \ No newline at end of file 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..8f73686 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,6 @@ +#Sat Sep 14 20:28:15 EDT 2024 +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100644 index 0000000..1b6c787 --- /dev/null +++ b/gradlew @@ -0,0 +1,234 @@ +#!/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 "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# 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..107acd3 --- /dev/null +++ b/gradlew.bat @@ -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 diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..c374b9f --- /dev/null +++ b/settings.gradle @@ -0,0 +1,2 @@ +rootProject.name = 'uBackupClient' + diff --git a/src/main/java/tech/nevets/ubackup/client/Config.java b/src/main/java/tech/nevets/ubackup/client/Config.java new file mode 100644 index 0000000..87b091c --- /dev/null +++ b/src/main/java/tech/nevets/ubackup/client/Config.java @@ -0,0 +1,197 @@ +package tech.nevets.ubackup.client; + +import com.google.gson.*; + +import java.io.*; +import java.math.BigDecimal; +import java.math.BigInteger; +import java.util.ArrayList; + +public class Config { + private static final Gson GSON = new GsonBuilder().setPrettyPrinting().create(); + + private JsonObject confObj; + private final String path; + + public Config(String path, String defaultData) { + this.path = path; + File f = new File(path); + if (!f.exists()) { + try { + f.getParentFile().mkdirs(); + boolean newFileCreated = f.createNewFile(); + if (newFileCreated && defaultData != null) { + FileWriter fw = new FileWriter(f); + fw.write(defaultData); + fw.flush(); + fw.close(); + } + } catch (IOException e) { + e.printStackTrace(); + } + } + + try { + confObj = GSON.fromJson(new FileReader(f), JsonObject.class); + } catch (FileNotFoundException e) { + e.printStackTrace(); + } + } + + public Config(String name) { + this(name, null); + } + + public String getString(String key) { + return confObj.get(key).getAsString(); + } + + public void setString(String key, String value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public String[] getStringArray(String key) { + ArrayList al = new ArrayList<>(); + for (JsonElement je : getJsonArray(key).asList()) { + al.add(je.getAsString()); + } + return al.toArray(new String[0]); + } + + public int getInt(String key) { + return confObj.get(key).getAsInt(); + } + + public void setInt(String key, int value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public boolean getBoolean(String key) { + return confObj.get(key).getAsBoolean(); + } + + public void setBoolean(String key, boolean value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public Number getNumber(String key) { + return confObj.get(key).getAsNumber(); + } + + public void setNumber(String key, Number value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public byte getByte(String key) { + return confObj.get(key).getAsByte(); + } + + public void setByte(String key, byte value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public short getShort(String key) { + return confObj.get(key).getAsShort(); + } + + public void setShort(String key, short value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public long getLong(String key) { + return confObj.get(key).getAsLong(); + } + + public void setLong(String key, long value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public float getFloat(String key) { + return confObj.get(key).getAsFloat(); + } + + public void setFloat(String key, float value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public double getDouble(String key) { + return confObj.get(key).getAsDouble(); + } + + public void setDouble(String key, double value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public BigInteger getBigInt(String key) { + return confObj.get(key).getAsBigInteger(); + } + + public void setBigInt(String key, BigInteger value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public BigDecimal getBigDecimal(String key) { + return confObj.get(key).getAsBigDecimal(); + } + + public void setBigDecimal(String key, BigDecimal value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public char getChar(String key) { + return confObj.get(key).getAsCharacter(); + } + + public void setChar(String key, char value) { + confObj.addProperty(key, value); + saveConfig(); + } + + public JsonElement getJsonElement(String key) { + return confObj.get(key); + } + + public void setJsonElement(String key, JsonElement value) { + confObj.add(key, value); + saveConfig(); + } + + public JsonObject getJsonObject(String key) { + return confObj.get(key).getAsJsonObject(); + } + + public JsonArray getJsonArray(String key) { + return confObj.get(key).getAsJsonArray(); + } + + public void saveConfig() { + try { + File f = new File(path); + FileWriter fw = new FileWriter(f); + fw.write(GSON.toJson(confObj)); + fw.flush(); + fw.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + + public void reloadConfig() { + try { + confObj = GSON.fromJson(new FileReader(path), JsonObject.class); + } catch (FileNotFoundException e) { + e.printStackTrace(); + } + } +} diff --git a/src/main/java/tech/nevets/ubackup/client/FTPSManager.java b/src/main/java/tech/nevets/ubackup/client/FTPSManager.java new file mode 100644 index 0000000..d382c10 --- /dev/null +++ b/src/main/java/tech/nevets/ubackup/client/FTPSManager.java @@ -0,0 +1,75 @@ +package tech.nevets.ubackup.client; + +import org.apache.commons.net.ftp.FTPSClient; + +import javax.net.ssl.SSLContext; +import javax.net.ssl.TrustManagerFactory; +import java.io.FileInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.security.*; + +import static tech.nevets.ubackup.client.Main.SYS_CONF; + +public class FTPSManager { + private static final Config FTP_CONF = new Config("./conf/ftpsettings.json", + "{\n \"host\": \"ftps.example.com\",\n \"port\": 990, \n \"username\": \"john\", \n \"password\":\"password\" \n}" + ); + + private static SSLContext configureSSLContext() { + try { + KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType()); + InputStream tStore = new FileInputStream("./truststore.p12"); + trustStore.load(tStore, "".toCharArray()); + tStore.close(); + TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); + tmf.init(trustStore); + + SSLContext ctx = SSLContext.getInstance("TLS"); + ctx.init(null, tmf.getTrustManagers(), SecureRandom.getInstanceStrong()); + + return ctx; + } catch (final Exception e) { + e.printStackTrace(); + return null; + } + } + + private FTPSClient client; + + public FTPSManager() { + try { + client = new FTPSClient(configureSSLContext()); + client.connect(FTP_CONF.getString("host"), FTP_CONF.getInt("port")); + System.out.println(client.getReplyString()); + client.execPROT("P"); + System.out.println(client.getReplyString()); + client.login(FTP_CONF.getString("username"), FTP_CONF.getString("password")); + System.out.println(client.getReplyString()); + } catch (IOException e) { + e.printStackTrace(); + } + } + + public void uploadBackup(InputStream fileStream) { + try { + String hostname = SYS_CONF.getString("hostname"); + client.storeFile( + "/backups/" + hostname + "/" + hostname + "-" + Utils.getDateFormatted(), + fileStream); + System.out.println(client.getReplyString()); + } catch (IOException e) { + e.printStackTrace(); + } + } + + public void close() { + try { + client.disconnect(); + System.out.println(client.getReplyString()); + } catch (IOException e) { + e.printStackTrace(); + } + } + +} diff --git a/src/main/java/tech/nevets/ubackup/client/Main.java b/src/main/java/tech/nevets/ubackup/client/Main.java new file mode 100644 index 0000000..4ddd29a --- /dev/null +++ b/src/main/java/tech/nevets/ubackup/client/Main.java @@ -0,0 +1,40 @@ +package tech.nevets.ubackup.client; + +import java.io.File; +import java.io.FileInputStream; +import java.nio.file.Path; + +public class Main { + public static final Config SYS_CONF = new Config("./conf/system.json", + "{\n \"hostname\": \"server\", \n \"backupDirectories\": [\n ] \n \"outputDirectory\": \"/opt/backups\" \n}" + ); + private static final File OUTPUT_DIR = new File(SYS_CONF.getString("outputDirectory")); + + public static void main(String[] args) throws Exception { + if (!OUTPUT_DIR.isDirectory()) { + System.out.println("Output Directory not set to directory!"); + System.exit(1); + } + + String[] backupDirs = SYS_CONF.getStringArray("backupDirectories"); + + if (backupDirs.length == 1) { + String filename = "TempArchiveName"; + Utils.archiveAndCompress(Path.of(backupDirs[0]), Path.of(SYS_CONF.getString("outputDirectory") + "/" + filename + ".tar.gz")); + } else if (backupDirs.length > 1) { + //TODO handle multiple backup directories + for (String s : backupDirs) { + Path p = Path.of(s); + } + } + + FTPSManager ftpsM = new FTPSManager(); + for (File f : OUTPUT_DIR.listFiles()) { + System.out.println("Uploading " + f.getName() + "..."); + ftpsM.uploadBackup(new FileInputStream(f)); + } + System.out.println("Finished uploading files"); + ftpsM.close(); + + } +} diff --git a/src/main/java/tech/nevets/ubackup/client/Utils.java b/src/main/java/tech/nevets/ubackup/client/Utils.java new file mode 100644 index 0000000..76f690b --- /dev/null +++ b/src/main/java/tech/nevets/ubackup/client/Utils.java @@ -0,0 +1,38 @@ +package tech.nevets.ubackup.client; + +import org.apache.commons.compress.archivers.ArchiveOutputStream; +import org.apache.commons.compress.archivers.ArchiveStreamFactory; +import org.apache.commons.compress.archivers.examples.Archiver; +import org.apache.commons.compress.compressors.CompressorOutputStream; +import org.apache.commons.compress.compressors.CompressorStreamFactory; + +import java.io.BufferedOutputStream; +import java.io.OutputStream; +import java.nio.file.Files; +import java.nio.file.Path; +import java.text.SimpleDateFormat; +import java.util.Date; + +public class Utils { + + public static String getDateFormatted() { + String pattern = "yyyy-MM-dd_HHmmss"; + SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern); + return simpleDateFormat.format(new Date()); + } + + public static void archive(Path directory, Path destination) throws Exception { + new Archiver().create("tar", directory, destination); + } + + public static void archiveAndCompress(Path directory, Path destination) throws Exception { + try (OutputStream archive = Files.newOutputStream(destination); + BufferedOutputStream archiveBuffer = new BufferedOutputStream(archive); + CompressorOutputStream compressor = new CompressorStreamFactory() + .createCompressorOutputStream("gz", archiveBuffer); + ArchiveOutputStream archiver = new ArchiveStreamFactory() + .createArchiveOutputStream("tar", compressor)) { + new Archiver().create(archiver, directory); + } + } +}