org.eclipse.egit.ui/src/org/eclipse/egit/ui/internal/push/RefUpdateContentProvider.java

   1 /*******************************************************************************
   2  * Copyright (C) 2008, Marek Zawirski <marek.zawirski@gmail.com>
   3  *
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *******************************************************************************/
   9 package org.eclipse.egit.ui.internal.push;
  10
  11 import java.util.SortedMap;
  12 import java.util.TreeMap;
  13 import java.util.Map.Entry;
  14
  15 import org.eclipse.egit.core.op.PushOperationResult;
  16 import org.eclipse.jface.viewers.IStructuredContentProvider;
  17 import org.eclipse.jface.viewers.Viewer;
  18 import org.eclipse.jgit.transport.RemoteRefUpdate;
  19 import org.eclipse.jgit.transport.URIish;
  20
  21 /**
  22  * Content provided for push result table viewer.
  23  * <p>
  24  * Input of this provided must be {@link PushOperationResult} instance, while
  25  * returned elements are instances of {@link RefUpdateElement}. Null input is
  26  * allowed, resulting in no elements.
  27  *
  28  * @see PushOperationResult
  29  * @see RefUpdateElement
  30  */
  31 class RefUpdateContentProvider implements IStructuredContentProvider {
  32         public Object[] getElements(final Object inputElement) {
  33                 if (inputElement == null)
  34                         return new RefUpdateElement[0];
  35
  36                 final PushOperationResult result = (PushOperationResult) inputElement;
  37
  38                 final SortedMap<String, String> dstToSrc = new TreeMap<String, String>();
  39                 for (final URIish uri : result.getURIs()) {
  40                         if (result.isSuccessfulConnection(uri)) {
  41                                 for (final RemoteRefUpdate rru : result.getPushResult(uri)
  42                                                 .getRemoteUpdates())
  43                                         dstToSrc.put(rru.getRemoteName(), rru.getSrcRef());
  44                                 // Assuming that each repository received the same ref updates,
  45                                 // we need only one to get these ref names.
  46                                 break;
  47                         }
  48                 }
  49
  50                 // Transforming PushOperationResult model to row-wise one.
  51                 final RefUpdateElement elements[] = new RefUpdateElement[dstToSrc
  52                                 .size()];
  53                 int i = 0;
  54                 for (final Entry<String, String> entry : dstToSrc.entrySet())
  55                         elements[i++] = new RefUpdateElement(result, entry.getValue(),
  56                                         entry.getKey());
  57                 return elements;
  58         }
  59
  60         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  61                 // nothing to do
  62         }
  63
  64         public void dispose() {
  65                 // nothing to dispose
  66         }
  67 }