Added getStyleList on RESTLayerGroup decoder + test

src/main/java/it/geosolutions/geoserver/rest/decoder/RESTLayerGroup.java

@@ -130,14 +130,22 @@ public RESTLayerList getLayerList() {
 	    }
 	}
 
-        public RESTPublishedList getPublishedList() {
-            if (rootElem.getChild("publishables") != null) {
-                return new RESTPublishedList(rootElem.getChild("publishables"));
-            } else {
-                return null;
-            }
-        }	
-
+    public RESTPublishedList getPublishedList() {
+        if (rootElem.getChild("publishables") != null) {
+            return new RESTPublishedList(rootElem.getChild("publishables"));
+        } else {
+            return null;
+        }
+    }
+
+    public RESTStyleList getStyleList() {
+        if (rootElem.getChild("styles") != null) {
+            return new RESTStyleList(rootElem.getChild("styles"));
+        } else {
+            return null;
+        }
+    }	
+
 	public String getCRS() {
 		Element bounds = rootElem.getChild("bounds");
 		return bounds.getChildText("crs");

src/test/java/it/geosolutions/geoserver/rest/decoder/RESTLayerGroupTest.java

@@ -0,0 +1,47 @@
+package it.geosolutions.geoserver.rest.decoder;
+
+import it.geosolutions.geoserver.rest.decoder.utils.NameLinkElem;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.apache.commons.io.IOUtils;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class RESTLayerGroupTest {
+
+    @Test
+    public void parseLayerGroup() throws IOException{
+        InputStream is = RESTFeatureTypeListTest.class.getResourceAsStream("/testdata/layergroups.xml");
+        String response = IOUtils.toString(is);
+        RESTLayerGroup lg = RESTLayerGroup.build(response);
+
+        String[] expected_layers=new String[]{
+            "layer001",
+            "layer002",
+            "layer003",
+            "geo:lg001",
+            "geo:lg002"
+        }; 
+
+        String[] expected_styles=new String[]{
+            "grass",
+            null,
+            "raster",
+            null,
+            null            
+        }; 
+
+
+        RESTPublishedList children = lg.getPublishedList();
+        RESTStyleList styles = lg.getStyleList();
+
+        for (int i=0;i<children.size();i++){
+            RESTPublished child = children.get(i);
+            NameLinkElem style = styles.get(i);
+            Assert.assertEquals(child.getName(), expected_layers[i]);
+            Assert.assertEquals(style.getName(), expected_styles[i]);
+        }        
+    }
+}

src/test/resources/testdata/layergroups.xml

@@ -0,0 +1,47 @@
+<layerGroup>
+    <name>lg003</name>
+    <mode>SINGLE</mode>
+    <workspace>
+        <name>geo</name>
+    </workspace>
+    <publishables>
+        <published type="layer">
+            <name>layer001</name>
+            <atom:link xmlns:atom="http://www.w3.org/2005/Atom" rel="alternate" href="http://localhost/geoserver/rest/layers/layer001.xml" type="application/xml"/>
+        </published>
+        <published type="layer">
+            <name>layer002</name>
+            <atom:link xmlns:atom="http://www.w3.org/2005/Atom" rel="alternate" href="http://localhost/geoserver/rest/layers/layer002.xml" type="application/xml"/>
+        </published>
+        <published type="layer">
+            <name>layer003</name>
+            <atom:link xmlns:atom="http://www.w3.org/2005/Atom" rel="alternate" href="http://localhost/geoserver/rest/layers/layer003.xml" type="application/xml"/>
+        </published>
+        <published type="layerGroup">
+            <name>geo:lg001</name>
+        </published>
+        <published type="layerGroup">
+            <name>geo:lg002</name>
+        </published>
+    </publishables>
+    <styles>
+        <style>
+            <name>grass</name>
+            <atom:link xmlns:atom="http://www.w3.org/2005/Atom" rel="alternate" href="http://localhost/geoserver/rest/styles/grass.xml" type="application/xml"/>
+        </style>
+        <style/>
+        <style>
+            <name>raster</name>
+            <atom:link xmlns:atom="http://www.w3.org/2005/Atom" rel="alternate" href="http://localhost/geoserver/rest/styles/raster.xml" type="application/xml"/>
+        </style>
+        <style/>
+        <style/>
+    </styles>
+    <bounds>
+        <minx>-2.00375083428E7</minx>
+        <maxx>2.00375083428E7</maxx>
+        <miny>-2.00375083428E7</miny>
+        <maxy>2.00375083428E7</maxy>
+        <crs class="projected">EPSG:3857</crs>
+    </bounds>
+</layerGroup>