├── .gitignore
├── LICENSE
├── README.md
├── pom.xml
└── src
    └── main
        └── java
            └── com
                └── github
                    └── austinc
                        └── jnrepl
                            └── Jnrepl.java


/.gitignore:
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 1 | pom.xml
 2 | pom.xml.asc
 3 | *.jar
 4 | *.class
 5 | /lib/
 6 | /classes/
 7 | /target/
 8 | /checkouts/
 9 | .lein-deps-sum
10 | .lein-repl-history
11 | .lein-plugins/
12 | .lein-failures
13 | .nrepl-port
14 | .idea/
15 | *.iml


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/LICENSE:
--------------------------------------------------------------------------------
 1 | This is free and unencumbered software released into the public domain.
 2 | 
 3 | Anyone is free to copy, modify, publish, use, compile, sell, or
 4 | distribute this software, either in source code form or as a compiled
 5 | binary, for any purpose, commercial or non-commercial, and by any
 6 | means.
 7 | 
 8 | In jurisdictions that recognize copyright laws, the author or authors
 9 | of this software dedicate any and all copyright interest in the
10 | software to the public domain. We make this dedication for the benefit
11 | of the public at large and to the detriment of our heirs and
12 | successors. We intend this dedication to be an overt act of
13 | relinquishment in perpetuity of all present and future rights to this
14 | software under copyright law.
15 | 
16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 | IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 | OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 | OTHER DEALINGS IN THE SOFTWARE.
23 | 
24 | For more information, please refer to <http://unlicense.org>
25 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # jnREPL
 2 | This library facilitates embedding a Clojure nREPL within a Java application.
 3 | The API has two static methods:
 4 | 
 5 |     Jnrepl.startRepl(9091L);  // start an nREPL server
 6 |     Jnrepl.shutdownRepl(); // shut it down
 7 | 
 8 | 
 9 | The repl port defaults to `9090`. This default can overriden with the JVM arg `-Djnrepl.port=9091`
10 | 
11 | 
12 | ### Example connecting with leiningen
13 | 
14 | `$ lein repl :connect localhost:9090`
15 | 
16 | ### Maven coordinates
17 | 
18 |     <dependency>
19 |        <groupId>com.github.austinc</groupId>
20 |         <artifactId>jnrepl</artifactId>
21 |         <version>1.2</version>
22 |     </dependency>
23 | 
24 | Compatible with JVM 1.6+
25 | 


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/pom.xml:
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  1 | <?xml version="1.0" encoding="UTF-8"?>
  2 | <project xmlns="http://maven.apache.org/POM/4.0.0"
  3 |          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5 |     <modelVersion>4.0.0</modelVersion>
  6 | 
  7 |     <groupId>com.github.austinc</groupId>
  8 |     <artifactId>jnrepl</artifactId>
  9 |     <version>1.2</version>
 10 | 
 11 |     <name>jnREPL</name>
 12 |     <description>Embed a Clojure nREPL in Java</description>
 13 |     <url>https://github.com/AustinC/jnREPL</url>
 14 | 
 15 |     <licenses>
 16 |         <license>
 17 |             <name>Unlicense</name>
 18 |             <url>http://unlicense.org/</url>
 19 |         </license>
 20 |     </licenses>
 21 | 
 22 |     <developers>
 23 |         <developer>
 24 |             <name>Austin Chamberlin</name>
 25 |             <email>austin.r.chamberlin@gmail.com</email>
 26 |         </developer>
 27 |     </developers>
 28 | 
 29 |     <scm>
 30 |         <url>https://github.com/AustinC/jnREPL.git</url>
 31 |     </scm>
 32 | 
 33 |     <properties>
 34 |         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 35 |     </properties>
 36 | 
 37 |     <dependencies>
 38 |         <dependency>
 39 |             <groupId>org.clojure</groupId>
 40 |             <artifactId>clojure</artifactId>
 41 |             <version>1.9.0</version>
 42 |         </dependency>
 43 |         <dependency>
 44 |             <groupId>org.clojure</groupId>
 45 |             <artifactId>tools.nrepl</artifactId>
 46 |             <version>0.2.12</version>
 47 |             <exclusions>
 48 |                 <exclusion>
 49 |                     <groupId>org.clojure</groupId>
 50 |                     <artifactId>clojure</artifactId>
 51 |                 </exclusion>
 52 |             </exclusions>
 53 |         </dependency>
 54 |         <dependency>
 55 |             <groupId>org.slf4j</groupId>
 56 |             <artifactId>slf4j-api</artifactId>
 57 |             <version>1.7.25</version>
 58 |         </dependency>
 59 |     </dependencies>
 60 | 
 61 | 
 62 |     <build>
 63 |         <plugins>
 64 |             <plugin>
 65 |                 <groupId>org.apache.maven.plugins</groupId>
 66 |                 <artifactId>maven-javadoc-plugin</artifactId>
 67 |                 <version>2.10.1</version>
 68 |                 <executions>
 69 |                     <execution>
 70 |                         <id>attach-javadocs</id>
 71 |                         <goals>
 72 |                             <goal>jar</goal>
 73 |                         </goals>
 74 |                     </execution>
 75 |                 </executions>
 76 |             </plugin>
 77 |             <plugin>
 78 |                 <artifactId>maven-source-plugin</artifactId>
 79 |                 <version>2.4</version>
 80 |                 <executions>
 81 |                     <execution>
 82 |                         <id>attach-sources</id>
 83 |                         <goals>
 84 |                             <goal>jar</goal>
 85 |                         </goals>
 86 |                     </execution>
 87 |                 </executions>
 88 |             </plugin>
 89 |             <plugin>
 90 |                 <groupId>org.apache.maven.plugins</groupId>
 91 |                 <artifactId>maven-gpg-plugin</artifactId>
 92 |                 <version>1.6</version>
 93 |                 <executions>
 94 |                     <execution>
 95 |                         <id>sign-artifacts</id>
 96 |                         <phase>verify</phase>
 97 |                         <goals>
 98 |                             <goal>sign</goal>
 99 |                         </goals>
100 |                     </execution>
101 |                 </executions>
102 |             </plugin>
103 |         </plugins>
104 |     </build>
105 | 
106 |     <distributionManagement>
107 |         <repository>
108 |             <id>sonatype</id>
109 |             <url>https://oss.sonatype.org/service/local/staging/deploy/maven2</url>
110 |         </repository>
111 |     </distributionManagement>
112 | 
113 | </project>


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/src/main/java/com/github/austinc/jnrepl/Jnrepl.java:
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 1 | package com.github.austinc.jnrepl;
 2 | 
 3 | import clojure.java.api.Clojure;
 4 | import clojure.lang.IFn;
 5 | import org.slf4j.Logger;
 6 | import org.slf4j.LoggerFactory;
 7 | 
 8 | public class Jnrepl {
 9 | 
10 |     final static Logger logger = LoggerFactory.getLogger(Jnrepl.class);
11 | 
12 |     private static Object serverInstance = null;
13 | 
14 |     /**
15 |      * Start a clojure nREPL server
16 |      */
17 |     public static synchronized void startRepl() {
18 |         Long port = Long.parseLong(System.getProperty("jnrepl.port", "9090"));
19 |         startRepl(port);
20 |     }
21 | 
22 |     /**
23 |      * Start a clojure nREPL server on the given port;
24 |      */
25 |     public static synchronized void startRepl(long port) {
26 | 
27 |         if (null != serverInstance) {
28 |             logger.warn("nrepl server already running, refusing to start another.");
29 |             return;
30 |         }
31 | 
32 |         try {
33 |             IFn require = Clojure.var("clojure.core", "require");
34 |             require.invoke(Clojure.read("clojure.tools.nrepl.server"));
35 |             IFn server = Clojure.var("clojure.tools.nrepl.server", "start-server");
36 |             serverInstance = server.invoke(Clojure.read(":port"), port);
37 | 
38 |             logger.info("Started clojure nREPL on port {}", port);
39 |         }
40 |         catch (Throwable e) {
41 |             logger.error("Error starting nrepl", e);
42 |         }
43 |     }
44 | 
45 |     /**
46 |      * Shutdown the nREPL server
47 |      */
48 |     public static synchronized void shutdownRepl() {
49 |         logger.info("Shutting down nrepl");
50 |         if (null == serverInstance) {
51 |             return;
52 |         }
53 | 
54 |         IFn shutdownFn = Clojure.var("clojure.tools.nrepl.server", "stop-server");
55 |         shutdownFn.invoke(serverInstance);
56 |         serverInstance = null;
57 |     }
58 | }
59 | 


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