Added packages, gradle and initial classes

.gitignore

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+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Package Files #
+*.jar
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+.idea/
+
+# User-specific stuff:
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/dictionaries
+
+# Sensitive or high-churn files:
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.local*
+
+
+# Gradle:
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# CMake
+cmake-build-debug/
+cmake-build-release/
+
+# Mongo Explorer plugin:
+.idea/**/mongoSettings.xml
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+.gradle
+/build/
+
+# ignore java builds
+java/build/*/*
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Cache of project
+.gradletasknamecache
+
+# # Work around https://youtrack.jetbrains.com/issue/IDEA-116898
+# gradle/wrapper/gradle-wrapper.properties
+
+# Build directory for read-the-docs
+/docs/_build/
+
+gradle.properties
+*.key
+*.key.secret
+*.gpg
+
+python/fairsearchcore/__pycache__/
+
+python/tests/__pycache__/
+
+python/\.coverage
+
+fairsearch-core\.iml

.travis.yml

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+language: java
+
+jdk:
+  - oraclejdk8
+
+script:
+ - ./gradlew clean check
+
+after_success:
+  - ./gradlew coveralls

LICENSE

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+Copyright 2019 Ivan Kitanovski
+
+   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.

build.gradle

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+buildscript {
+
+    repositories {
+        mavenCentral()
+        jcenter()
+        mavenLocal()
+    }
+
+    dependencies {
+        classpath 'com.bmuschko:gradle-nexus-plugin:2.3.1'
+        classpath "org.kt3k.gradle.plugin:coveralls-gradle-plugin:2.8.2"
+    }
+}
+
+group 'com.github.fair-search'
+version '1.0.0'
+
+apply plugin: 'java'
+apply plugin: 'maven-publish'
+apply plugin: 'idea'
+apply plugin: 'com.bmuschko.nexus'
+apply plugin: 'com.github.kt3k.coveralls'
+
+sourceCompatibility = 1.8
+
+task fatJar(type: Jar) {
+    manifest {
+        attributes 'Implementation-Title': 'DELTR lib',
+                'Implementation-Version': version
+    }
+    baseName = project.name + '-all'
+    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
+    with jar
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+}
+
+dependencies {
+    compile "org.apache.lucene:lucene-expressions:7.1.0"
+
+    compile group: 'org.apache.commons', name: 'commons-math3', version: '3.6.1'
+    compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.8.10'
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    testCompile group: 'com.mashape.unirest', name: 'unirest-java', version: '1.4.9'
+    testCompile group: 'org.apache.lucene', name: 'lucene-test-framework', version: '7.1.0'
+    testCompile 'pl.pragmatists:JUnitParams:1.1.1'
+}
+
+publishing {
+    publications {
+        mavenJava(MavenPublication) {
+            groupId 'com.github.fair-search'
+            artifactId 'fairsearchdeltr-java'
+            version '1.0.0'
+
+            from components.java
+        }
+    }
+}
+
+modifyPom {
+    project {
+        name 'Fair Search DELTR'
+        description 'A Java library for disparate exposure in ranking (a learning to rank approach)'
+        url 'https://github.com/fair-search/fairsearchdeltr-java'
+        inceptionYear '2018'
+        scm {
+            url 'https://github.com/fair-search/fairsearchdeltr-java'
+            connection 'scm:https://github.com/fair-search/fairsearchdeltr-java.git'
+            developerConnection 'scm:[email protected]:fair-search/fairsearchdeltr-java.git'
+        }
+        licenses {
+            license {
+                name 'The Apache Software License, Version 2.0'
+                url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                distribution 'repo'
+            }
+        }
+        developers {
+            developer {
+                id 'ivan.kitanovski'
+                name 'Ivan Kitanovski'
+                email '[email protected]'
+            }
+        }
+    }
+}
+extraArchive {
+    sources = true
+    tests = true
+    javadoc = true
+}
+nexus {
+    sign = true
+    repositoryUrl = 'https://oss.sonatype.org/service/local/staging/deploy/maven2'
+    snapshotRepositoryUrl = 'https://oss.sonatype.org/content/repositories/snapshots'
+}
+
+//nexusStaging {
+//    packageGroup = "org.github.fair-search" //optional if packageGroup == project.getGroup()
+//    stagingProfileId = "org.github.fair-search" //when not defined will be got from server using "packageGroup"
+//}

gradle/wrapper/gradle-wrapper.properties

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+#Wed May 02 19:01:53 CEST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip