General cleanup of connector code

Obsolete features like support for __ACCOUNT__ and __GROUP__ object
classes were removed. Currently the connector supports only PlainGroup
object class that contains a list of group members.

The code was generally cleaned up and refactored to improve
understandability and maintainability. Unnecessary dependencies were
removed to reduce JAR size.

Version was increased to 0.5.

README.md

@@ -1,2 +1,15 @@
 # midPoint-Grouper_connector
-Two connectors to be maintained: a REST connector and the Groovy scripts for an AMQP "connector"
+This is a connector that can read groups from a Grouper instance using REST calls.
+Currently it supports these searches only:
+- fetching all groups,
+- fetching a group by name,
+- fetching a group by UUID.
+
+When fetching a group, a client can choose whether to get basic group data only (name, UUID, extension) or whether
+to obtain a list of group members as well. 
+
+Besides `search` operation the following ones are supported:
+- `schema`
+- `test`
+
+This connector was tested with Grouper 2.4.

pom.xml

@@ -23,18 +23,19 @@
         <artifactId>connector-parent</artifactId>
         <groupId>com.evolveum.polygon</groupId>
         <version>1.4.2.14</version>
-        <relativePath></relativePath>
+        <relativePath/>
     </parent>
 
     <artifactId>connector-grouper-rest</artifactId>
-    <version>0.4</version>
+    <version>0.5</version>
     <packaging>jar</packaging>
 
     <name>Grouper REST Connector</name>
 
     <properties>
         <connectorPackage>com.evolveum.polygon.connector.grouper.rest</connectorPackage>
         <connectorClass>GrouperRestConnector</connectorClass>
+        <project.source.version>1.8</project.source.version>
     </properties>
 
     <repositories>
@@ -84,7 +85,6 @@
 	        <groupId>com.evolveum.polygon</groupId>
 	        <version>1.4.2.14-SNAPSHOT</version>
 		</dependency>
-
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
@@ -101,36 +101,5 @@
 			<version>6.8</version>
 			<scope>test</scope>
 		</dependency>
-		<!--dependency>
-			<groupId>com.metaparadigm</groupId>
-			<artifactId>json-rpc</artifactId>
-			<version>1.0</version>
-		</dependency-->
-		<dependency>
-			<groupId>batik</groupId>
-			<artifactId>batik-swing</artifactId>
-			<version>1.6</version>
-		</dependency>
-		<dependency>
-			<groupId>batik</groupId>
-			<artifactId>batik-rasterizer</artifactId>
-			<version>1.6</version>
-		</dependency>
-		<dependency>
-			<groupId>xml-apis</groupId>
-			<artifactId>xml-apis</artifactId>
-			<version>1.3.04</version>
-		</dependency>
-		<dependency>
-			<groupId>xml-apis</groupId>
-			<artifactId>xml-apis-ext</artifactId>
-			<version>1.3.04</version>
-		</dependency>
-		<!--dependency>
-			<groupId>net.tirasa.connid</groupId>
-			<artifactId>connector-framework</artifactId>
-			<version>1.4.3.0-SNAPSHOT</version>
-		</dependency-->
     </dependencies>
-
 </project>

src/main/assembly/connector.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-  ~ Copyright (c) 2010-2014 Evolveum
+  ~ Copyright (c) 2019 Evolveum
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.