Added a ParaViewConnectionAdapter to cleanly interface the

ParaViewVizService with the VtkWebClient.

Signed-off-by: Jordan Deyton <deytonjh@ornl.gov>

src/org.eclipse.ice.viz.service.paraview/META-INF/MANIFEST.MF

@@ -4,8 +4,10 @@ Bundle-Name: ParaView Visualization Service Plugin
 Bundle-SymbolicName: org.eclipse.ice.viz.service.paraview;singleton:=true
 Bundle-Version: 2.0.0
 Bundle-RequiredExecutionEnvironment: JavaSE-1.7
-Import-Package: org.eclipse.core.runtime.preferences;version="3.3.0",
+Import-Package: com.kitware.vtk.web,
+ org.eclipse.core.runtime.preferences;version="3.3.0",
  org.eclipse.ice.client.widgets.viz.service,
+ org.eclipse.ice.datastructures.ICEObject,
  org.eclipse.ice.datastructures.form,
  org.eclipse.ice.viz.service,
  org.eclipse.ice.viz.service.connections,

src/org.eclipse.ice.viz.service.paraview/src/org/eclipse/ice/viz/service/connections/paraview/ParaViewConnectionAdapter.java

@@ -0,0 +1,64 @@
+package org.eclipse.ice.viz.service.connections.paraview;
+
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+
+import org.eclipse.ice.datastructures.form.Entry;
+import org.eclipse.ice.viz.service.connections.ConnectionAdapter;
+
+import com.kitware.vtk.web.VtkWebClient;
+import com.kitware.vtk.web.VtkWebClientHttpImpl;
+
+public class ParaViewConnectionAdapter extends ConnectionAdapter<VtkWebClient> {
+
+	@Override
+	protected VtkWebClient openConnection() {
+
+		boolean connected = false;
+		VtkWebClient client = null;
+
+		try {
+			client = new VtkWebClientHttpImpl();
+			String host = getConnectionProperty("host");
+			String port = getConnectionProperty("port");
+			String url = "http://" + host + ":" + port + "/rpc-http/";
+			connected = client.connect(url).get();
+		} catch (InterruptedException e) {
+			e.printStackTrace();
+		} catch (ExecutionException e) {
+			e.printStackTrace();
+		}
+
+		if (!connected) {
+			client = null;
+		}
+
+		return client;
+	}
+
+	@Override
+	protected boolean closeConnection(VtkWebClient connection) {
+		connection.close();
+		return true;
+	}
+
+	@Override
+	public boolean setConnectionProperties(List<Entry> row) {
+		// We need to get the following information:
+		// host
+		// port
+
+		// TODO Update this when we can launch the server.
+
+		boolean changed = false;
+
+		if (row != null && row.size() >= 3) {
+			objectName = row.get(0).getValue();
+			changed |= setConnectionProperty("host", row.get(1).getValue());
+			changed |= setConnectionProperty("port", row.get(2).getValue());
+		}
+
+		return changed;
+	}
+
+}