Minor corrections and experiments with JointJS.

Kieker.WebGUI/src/main/java/kieker/webgui/beans/application/AvailableProjectsBean.java

@@ -22,6 +22,7 @@ package kieker.webgui.beans.application;
 import java.io.File;
 import java.util.List;
 
+import javax.faces.application.FacesMessage;
 import javax.faces.bean.ApplicationScoped;
 import javax.faces.bean.ManagedBean;
 import javax.faces.context.FacesContext;
@@ -37,7 +38,9 @@ import org.primefaces.model.DefaultTreeNode;
 import org.primefaces.model.TreeNode;
 
 /**
- * This bean can be used to handle all available projects within the program.
+ * This bean can be used to handle all available projects within the program. It is like a blackboard for all other components when it comes to the actual projects
+ * <b>stored</b> on the file system. The properties of the projects, like the adding of dependencies the an actual existing project, can be done otherwise, but the
+ * storage is done via this bean.
  * 
  * @author Nils Christian Ehmke
  * @version 1.0
@@ -59,32 +62,33 @@ public class AvailableProjectsBean {
 	 * Creates a new instance of this class.
 	 */
 	public AvailableProjectsBean() {
+		/* Load all projects from the file system. */
 		this.projects = FileManager.getInstance().loadAllProjects();
 		this.factory = new MAnalysisMetaModelFactory();
 	}
 
 	/**
 	 * Uses the given name to create a new project. If a project with the
-	 * same name does already exist, nothing happens.
+	 * same name does already exist, nothing happens, but a message will inform the user.
 	 * 
 	 * @param projectName
 	 *            The name of the new project.
 	 */
 	public final void addProject(final String projectName) {
-		synchronized (this) {
-			/*
-			 * Create a new project.
-			 */
-			final MIProject project = this.factory.createProject();
-			project.setName(projectName);
+		/*
+		 * Create a new project.
+		 */
+		final MIProject project = this.factory.createProject();
+		project.setName(projectName);
 
+		/* The check for an existing project and the potential storage within our list has to be done atomically. */
+		synchronized (this) {
 			/*
-			 * Try to save the project.
+			 * Try to save the project. If this fails, the project exists already.
 			 */
 			if (FileManager.getInstance().saveNewProject(project)) {
 				/*
-				 * Set the new project as the main project, if the current
-				 * user doesn't have one.
+				 * Set the new project as the main project, if the current user doesn't have one.
 				 */
 				final FacesContext context = FacesContext.getCurrentInstance();
 				final SelectedProjectBean bean = context.getApplication().evaluateExpressionGet(context, "#{selectedProjectBean}",
@@ -94,6 +98,9 @@ public class AvailableProjectsBean {
 				}
 
 				this.projects.add(project);
+			} else {
+				/* Inform the user about the fail. */
+				FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "", "A project with this name exists already."));
 			}
 		}
 	}
@@ -168,4 +175,5 @@ public class AvailableProjectsBean {
 			}
 		}
 	}
+   
 }

Kieker.WebGUI/src/main/webapp/main.xhtml

@@ -10,10 +10,9 @@
         <h:head>
             <title>Kieker.WebGUI</title>
             <link rel="stylesheet" type="text/css" href="../main.css" />
-            <script src="../main/joint.all.min.js" type="text/javascript"></script>
         </h:head>
 
-        <h:body>
+        <h:body onload="initPageObjects();">
             <!-- This is the layout for the whole page. -->
             <p:layout id="layout" fullPage="true">
 
@@ -102,12 +101,6 @@
                 <!-- ******************************************************************************** -->
                 <!-- The following layout unit is within the center and used for the graph. -->
                 <p:layoutUnit position="center">
-                    <div style="width: fill-available; height: 100%" id="myfsa"  >
-
-                    </div>
-                    <script type="text/javascript">
-
-                    </script>
                 </p:layoutUnit>
                 <!-- ******************************************************************************** -->
 
@@ -159,7 +152,7 @@
                             </p:treeNode>
                             <p:treeNode type="reader" icon="ui-icon-folder-open">
                                 <h:form>
-                                    <p:commandLink>
+                                    <p:commandLink ajax="true">
                                         <h:outputText value="#{node}">
                                             <f:converter converterId="kieker.webgui.converter.ClassToStringConverter"/>
                                         </h:outputText>
@@ -182,7 +175,7 @@
                 <!-- ******************************************************************************** -->
             </p:layout>
 
-            <p:growl id="messages" showDetail="true" autoUpdate="true" sticky="false"/>  
+            <p:growl id="messages" showDetail="true"  autoUpdate="true" sticky="false"/>  
 
             <!-- Include the dialogs for creating/deleting projects etc. -->
             <ui:include src="main\projectDialogs.xhtml" />