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Converter [![Build Status](https://travis-ci.org/lukas-krecan/future-converter.png?branch=master)](https://travis-ci.org/lukas-krecan/future-converter) [![Maven Central](https://maven-badges.herokuapp.com/maven-central/net.javacrumbs.future-converter/future-converter/badge.svg)](https://maven-badges.herokuapp.com/maven-central/net.javacrumbs.future-converter/future-converter)\n================\n\nConverts between various future types, [RxJava](https://github.com/Netflix/RxJava) Single, [RxJava 2](https://github.com/Netflix/RxJava) Single,\nSpring 4 [ListenableFuture](http://docs.spring.io/spring/docs/4.0.0.BUILD-SNAPSHOT/javadoc-api/org/springframework/util/concurrent/ListenableFuture.html),\nJava 8 [CompletableFuture](http://download.java.net/lambda/b88/docs/api/java/util/concurrent/CompletableFuture.html) and\nGuava [ListenableFuture](http://docs.guava-libraries.googlecode.com/git-history/release/javadoc/com/google/common/util/concurrent/ListenableFuture.html).\n\nI am aware of the following quirks:\n* It is not [possible to cancel CompletableFuture](http://stackoverflow.com/questions/23320407/how-to-cancel-java-8-completable-future) if it's blocked.\n\nThe project has pretty good test coverage, but testing asynchronous stuff is tricky. If you find any bug, please let me know.\n\n# General usage\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-FROM-TO\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\nwhere you replace FROM and TO by library you want to use. For example `future-converter-spring-guava`. \nThen you just use static methods from `net.javacrumbs.futureconverter.FROMTO.FutureConverter` class.\n\n## spring-java8\nConverts between Spring 4 [ListenableFuture](http://docs.spring.io/spring/docs/4.0.0.BUILD-SNAPSHOT/javadoc-api/org/springframework/util/concurrent/ListenableFuture.html) and Java 8 [CompletableFuture](http://download.java.net/lambda/b88/docs/api/java/util/concurrent/CompletableFuture.html)\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-spring-java8\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\nAnd then use\n\n```java\nimport static net.javacrumbs.futureconverter.springjava.FutureConverter.*;\n\n...\nCompletableFuture\u003cString\u003e completable = toCompletableFuture(listenable);\n...\nListenableFuture\u003cString\u003e listenable = toListenableFuture(completable);\n```\n\n## spring-guava\nConverts between Spring 4 [ListenableFuture](http://docs.spring.io/spring/docs/4.0.0.BUILD-SNAPSHOT/javadoc-api/org/springframework/util/concurrent/ListenableFuture.html)\nand Guava [ListenableFuture](http://docs.guava-libraries.googlecode.com/git-history/release/javadoc/com/google/common/util/concurrent/ListenableFuture.html)\n\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-spring-guava\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\nAnd then use\n\n```java\nimport static net.javacrumbs.futureconverter.springguava.FutureConverter.*;\n\n...\ncom.google.common.util.concurrent.ListenableFuture\u003cString\u003e guavaListenableFuture\n        = toGuavaListenableFuture(springListenableFuture);\n...\norg.springframework.util.concurrent.ListenableFuture\u003cString\u003e springListenableFuture\n        = toSpringListenableFuture(guavaListenableFuture);\n```\n\n## java8-guava\nConverts between Java 8 [CompletableFuture](http://download.java.net/lambda/b88/docs/api/java/util/concurrent/CompletableFuture.html)\nand Guava [ListenableFuture](http://docs.guava-libraries.googlecode.com/git-history/release/javadoc/com/google/common/util/concurrent/ListenableFuture.html)\n\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-java8-guava\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n\n```\n\nAnd then use\n\n```java\nimport static net.javacrumbs.futureconverter.java8guava.FutureConverter.*;\n\n...\nListenableFuture\u003cString\u003e guavaListenableFuture = toListenableFuture(completable);\n...\nCompletableFuture\u003cString\u003e completable = toCompletableFuture(listenable);;\n```\n\n## RxJava\nSince version 1.1.0 we are using rx.Single for integration with RxJava\n\nPlease note that\n* When converting a Future to a Single, we cancel the original future on unsubscribe. If tou need the feature to continue running, use something like `single.toObservable().publish().refCount().toSingle()`\n* Converting Single to a Future registers exactly one subscription which is unsubscribed upon Future cancellation.\n\n## rxjava-java8\nConverts between [RxJava](https://github.com/Netflix/RxJava) Single and Java 8 [CompletableFuture](http://download.java.net/lambda/b88/docs/api/java/util/concurrent/CompletableFuture.html)\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-rxjava-java8\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\nAnd then use\n\n```java\nimport static net.javacrumbs.futureconverter.java8rx.FutureConverter.*;\n\n...\nCompletableFuture\u003cString\u003e completable = toCompletableFuture(single);\n...\nSingle\u003cString\u003e single = toSingle(completable);\n```\n\n## spring-rxjava\nConverts between [RxJava](https://github.com/Netflix/RxJava) Observables and Spring 4 [ListenableFuture](http://docs.spring.io/spring/docs/4.0.0.BUILD-SNAPSHOT/javadoc-api/org/springframework/util/concurrent/ListenableFuture.html)\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-spring-rxjava\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\nAnd then use\n\n```java\nimport static net.javacrumbs.futureconverter.springrx.FutureConverter.*;\n\n...\nListenableFuture\u003cString\u003e listenable = toListenableFuture(single);\n...\nSingle\u003cString\u003e single = toSingle(listenable);\n```\n\n## guava-rxjava\nConverts between [RxJava](https://github.com/Netflix/RxJava) Observables and Guava [ListenableFuture](http://docs.guava-libraries.googlecode.com/git-history/release/javadoc/com/google/common/util/concurrent/ListenableFuture.html)\n\nImport the dependency\n\n```xml\n\u003cdependency\u003e\n    \u003cgroupId\u003enet.javacrumbs.future-converter\u003c/groupId\u003e\n    \u003cartifactId\u003efuture-converter-guava-rxjava\u003c/artifactId\u003e\n    \u003cversion\u003e1.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\nAnd then use\n\n```java\nimport static net.javacrumbs.futureconverter.guavarx.FutureConverter.*;\n\n...\nListenableFuture\u003cString\u003e listenable = toListenableFuture(single);\n...\nSingle\u003cString\u003e single = toSingle(listenable);\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flukas-krecan%2Ffuture-converter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flukas-krecan%2Ffuture-converter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flukas-krecan%2Ffuture-converter/lists"}