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yuuzi41 · Feb 11, 2017 · 6f5cec0 · 6f5cec0
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diff --git a/.gitignore b/.gitignore
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+*~
+/pkg/
+/tmp/
+*.gemspec
+.gradle/
+/classpath/
+build/
+.idea
+/.settings/
+/.metadata/
+.classpath
+.project
diff --git a/LICENSE.txt b/LICENSE.txt
@@ -0,0 +1,21 @@
+
+MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
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+# Lz4 decoder plugin for Embulk
+
+This plugin is embulk file decoder for LZ4, a Extremely fast compression algorithm.
+
+**Caution!** : This plugin supports [LZ4 Frame Format](https://github.com/lz4/lz4/wiki/lz4_Frame_format.md) only!
+
+_LZ4 Frame Format_ is the most famously format for compressing file of any size by LZ4. if you use Linux, `lz4` program has generating a compressed file formatted by _LZ4 Frame Format_.
+
+then, this plugin is not supported other formats based on LZ4 algorithm such as raw _LZ4 Block Format_, currently.
+
+## Overview
+
+* **Plugin type**: decoder
+* **Guess supported**: no
+
+## Configuration
+
+No configurable.
+
+## Example
+
+```yaml
+in:
+  type: any output input plugin type
+  decoders:
+    - {type: lz4}
+```
+
+
+```
+$ embulk gem install embulk-decoder-lz4
+```
+
+## Build
+
+```
+$ ./gradlew gem  # -t to watch change of files and rebuild continuously
+```
diff --git a/build.gradle b/build.gradle
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+plugins {
+    id "com.jfrog.bintray" version "1.1"
+    id "com.github.jruby-gradle.base" version "0.1.5"
+    id "java"
+    id "checkstyle"
+}
+import com.github.jrubygradle.JRubyExec
+repositories {
+    mavenCentral()
+    jcenter()
+}
+configurations {
+    provided
+}
+
+version = "0.1.0"
+
+sourceCompatibility = 1.7
+targetCompatibility = 1.7
+
+dependencies {
+    compile  "org.embulk:embulk-core:0.8.16"
+    provided "org.embulk:embulk-core:0.8.16"
+
+    compile  "net.jpountz.lz4:lz4:1.3.0"
+
+    testCompile "junit:junit:4.+"
+}
+
+task classpath(type: Copy, dependsOn: ["jar"]) {
+    doFirst { file("classpath").deleteDir() }
+    from (configurations.runtime - configurations.provided + files(jar.archivePath))
+    into "classpath"
+}
+clean { delete "classpath" }
+
+checkstyle {
+    configFile = file("${project.rootDir}/config/checkstyle/checkstyle.xml")
+    toolVersion = '6.14.1'
+}
+checkstyleMain {
+    configFile = file("${project.rootDir}/config/checkstyle/default.xml")
+    ignoreFailures = true
+}
+checkstyleTest {
+    configFile = file("${project.rootDir}/config/checkstyle/default.xml")
+    ignoreFailures = true
+}
+task checkstyle(type: Checkstyle) {
+    classpath = sourceSets.main.output + sourceSets.test.output
+    source = sourceSets.main.allJava + sourceSets.test.allJava
+}
+
+task gem(type: JRubyExec, dependsOn: ["gemspec", "classpath"]) {
+    jrubyArgs "-rrubygems/gem_runner", "-eGem::GemRunner.new.run(ARGV)", "build"
+    script "${project.name}.gemspec"
+    doLast { ant.move(file: "${project.name}-${project.version}.gem", todir: "pkg") }
+}
+
+task gemPush(type: JRubyExec, dependsOn: ["gem"]) {
+    jrubyArgs "-rrubygems/gem_runner", "-eGem::GemRunner.new.run(ARGV)", "push"
+    script "pkg/${project.name}-${project.version}.gem"
+}
+
+task "package"(dependsOn: ["gemspec", "classpath"]) {
+    doLast {
+        println "> Build succeeded."
+        println "> You can run embulk with '-L ${file(".").absolutePath}' argument."
+    }
+}
+
+task gemspec {
+    ext.gemspecFile = file("${project.name}.gemspec")
+    inputs.file "build.gradle"
+    outputs.file gemspecFile
+    doLast { gemspecFile.write($/
+Gem::Specification.new do |spec|
+  spec.name          = "${project.name}"
+  spec.version       = "${project.version}"
+  spec.authors       = ["yuuzi41"]
+  spec.summary       = %[LZ4 decoder plugin for Embulk]
+  spec.description   = %[Decodes LZ4 files read by other file input plugins.]
+  spec.email         = ["[email protected]"]
+  spec.licenses      = ["MIT"]
+  # TODO set this: spec.homepage      = "https://github.com/yuuzi41/embulk-decoder-lz4"
+
+  spec.files         = `git ls-files`.split("\n") + Dir["classpath/*.jar"]
+  spec.test_files    = spec.files.grep(%r"^(test|spec)/")
+  spec.require_paths = ["lib"]
+
+  #spec.add_dependency 'YOUR_GEM_DEPENDENCY', ['~> YOUR_GEM_DEPENDENCY_VERSION']
+  spec.add_development_dependency 'bundler', ['~> 1.0']
+  spec.add_development_dependency 'rake', ['>= 10.0']
+end
+/$)
+    }
+}
+clean { delete "${project.name}.gemspec" }
diff --git a/config/checkstyle/checkstyle.xml b/config/checkstyle/checkstyle.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE module PUBLIC
+        "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+        "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<module name="Checker">
+    <!-- https://github.com/facebook/presto/blob/master/src/checkstyle/checks.xml -->
+    <module name="FileTabCharacter"/>
+    <module name="NewlineAtEndOfFile">
+        <property name="lineSeparator" value="lf"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value="\r"/>
+        <property name="message" value="Line contains carriage return"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value=" \n"/>
+        <property name="message" value="Line has trailing whitespace"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value="\{\n\n"/>
+        <property name="message" value="Blank line after opening brace"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value="\n\n\s*\}"/>
+        <property name="message" value="Blank line before closing brace"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value="\n\n\n"/>
+        <property name="message" value="Multiple consecutive blank lines"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value="\n\n\Z"/>
+        <property name="message" value="Blank line before end of file"/>
+    </module>
+    <module name="RegexpMultiline">
+        <property name="format" value="Preconditions\.checkNotNull"/>
+        <property name="message" value="Use of checkNotNull"/>
+    </module>
+
+    <module name="TreeWalker">
+        <module name="EmptyBlock">
+            <property name="option" value="text"/>
+            <property name="tokens" value="
+                LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_IF,
+                LITERAL_FOR, LITERAL_TRY, LITERAL_WHILE, INSTANCE_INIT, STATIC_INIT"/>
+        </module>
+        <module name="EmptyStatement"/>
+        <module name="EmptyForInitializerPad"/>
+        <module name="EmptyForIteratorPad">
+            <property name="option" value="space"/>
+        </module>
+        <module name="MethodParamPad">
+            <property name="allowLineBreaks" value="true"/>
+            <property name="option" value="nospace"/>
+        </module>
+        <module name="ParenPad"/>
+        <module name="TypecastParenPad"/>
+        <module name="NeedBraces"/>
+        <module name="LeftCurly">
+            <property name="option" value="nl"/>
+            <property name="tokens" value="CLASS_DEF, CTOR_DEF, INTERFACE_DEF, METHOD_DEF"/>
+        </module>
+        <module name="LeftCurly">
+            <property name="option" value="eol"/>
+            <property name="tokens" value="
+                 LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR,
+                 LITERAL_IF, LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE"/>
+        </module>
+        <module name="RightCurly">
+            <property name="option" value="alone"/>
+        </module>
+        <module name="GenericWhitespace"/>
+        <module name="WhitespaceAfter"/>
+        <module name="NoWhitespaceBefore"/>
+
+        <module name="UpperEll"/>
+        <module name="DefaultComesLast"/>
+        <module name="ArrayTypeStyle"/>
+        <module name="MultipleVariableDeclarations"/>
+        <module name="ModifierOrder"/>
+        <module name="OneStatementPerLine"/>
+        <module name="StringLiteralEquality"/>
+        <module name="MutableException"/>
+        <module name="EqualsHashCode"/>
+        <module name="InnerAssignment"/>
+        <module name="InterfaceIsType"/>
+        <module name="HideUtilityClassConstructor"/>
+
+        <module name="MemberName"/>
+        <module name="LocalVariableName"/>
+        <module name="LocalFinalVariableName"/>
+        <module name="TypeName"/>
+        <module name="PackageName"/>
+        <module name="ParameterName"/>
+        <module name="StaticVariableName"/>
+        <module name="ClassTypeParameterName">
+            <property name="format" value="^[A-Z][0-9]?$"/>
+        </module>
+        <module name="MethodTypeParameterName">
+            <property name="format" value="^[A-Z][0-9]?$"/>
+        </module>
+
+        <module name="AvoidStarImport"/>
+        <module name="RedundantImport"/>
+        <module name="UnusedImports"/>
+        <module name="ImportOrder">
+            <property name="groups" value="*,javax,java"/>
+            <property name="separated" value="true"/>
+            <property name="option" value="bottom"/>
+            <property name="sortStaticImportsAlphabetically" value="true"/>
+        </module>
+
+        <module name="WhitespaceAround">
+            <property name="allowEmptyConstructors" value="true"/>
+            <property name="allowEmptyMethods" value="true"/>
+            <property name="ignoreEnhancedForColon" value="false"/>
+            <property name="tokens" value="
+                ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN,
+                BXOR, BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, EQUAL, GE, GT, LAND, LE,
+                LITERAL_ASSERT, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE,
+                LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF, LITERAL_RETURN,
+                LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE,
+                LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN, NOT_EQUAL,
+                PLUS, PLUS_ASSIGN, QUESTION, SL, SLIST, SL_ASSIGN, SR, SR_ASSIGN,
+                STAR, STAR_ASSIGN, TYPE_EXTENSION_AND"/>
+        </module>
+    </module>
+</module>