lttng/org.eclipse.tracecompass.lttng2.control.ui/src/org/eclipse/tracecompass/internal/lttng2/control/ui/views/dialogs/ConnectionContentProvider.java

   1 /**********************************************************************
   2  * Copyright (c) 2015 École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Patrick-Jeffrey Pollo Guilbert, William Enright,
  11  *      William Tri-Khiem Truong - Initial API and implementation
  12  **********************************************************************/
  13
  14 package org.eclipse.tracecompass.internal.lttng2.control.ui.views.dialogs;
  15
  16 import java.util.ArrayList;
  17 import java.util.Arrays;
  18 import java.util.List;
  19
  20 import org.eclipse.jface.viewers.ITreeContentProvider;
  21 import org.eclipse.jface.viewers.Viewer;
  22 import org.eclipse.remote.core.IRemoteConnection;
  23 import org.eclipse.remote.core.IRemoteConnectionType;
  24
  25 /**
  26  * TODO document
  27  *
  28  */
  29 public final class ConnectionContentProvider implements ITreeContentProvider {
  30     private static final Object[] NO_CHILDREN = {};
  31
  32     @Override
  33     public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  34     }
  35
  36     @Override
  37     public void dispose() {
  38     }
  39
  40     @Override
  41     public Object[] getElements(Object inputElement) {
  42         List<Object> children = new ArrayList<>();
  43         if (inputElement instanceof IRemoteConnectionType) {
  44             IRemoteConnectionType irc = (IRemoteConnectionType) inputElement;
  45             children.addAll(irc.getRemoteServicesManager().getAllRemoteConnections());
  46         }
  47         return children.toArray();
  48     }
  49
  50     @Override
  51     public Object[] getChildren(Object parentElement) {
  52         if (parentElement instanceof IRemoteConnectionType) {
  53             return getConnections((IRemoteConnectionType) parentElement);
  54         }
  55         return NO_CHILDREN;
  56     }
  57
  58     static IRemoteConnection[] getConnections(IRemoteConnectionType parentElement) {
  59         List<IRemoteConnection> connectionList = parentElement.getConnections();
  60         IRemoteConnection[] result = connectionList.toArray(new IRemoteConnection[connectionList.size()]);
  61         Arrays.sort(result);
  62         return result;
  63     }
  64
  65     @Override
  66     public Object getParent(Object element) {
  67         if (element instanceof IRemoteConnection) {
  68             return ((IRemoteConnection) element).getConnectionType();
  69         }
  70         return null;
  71     }
  72
  73     @Override
  74     public boolean hasChildren(Object element) {
  75         return getChildren(element).length > 0;
  76     }
  77
  78 }