plugins/svn4idea/src/org/jetbrains/idea/svn/dialogs/browserCache/Loader.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.jetbrains.idea.svn.dialogs.browserCache;
  17
  18 import org.jetbrains.idea.svn.dialogs.RepositoryTreeNode;
  19 import org.tmatesoft.svn.core.SVNDirEntry;
  20 import org.tmatesoft.svn.core.SVNErrorMessage;
  21
  22 import java.util.List;
  23
  24 public abstract class Loader {
  25   protected final SvnRepositoryCache myCache;
  26
  27   protected Loader(final SvnRepositoryCache cache) {
  28     myCache = cache;
  29   }
  30
  31   public abstract void load(final RepositoryTreeNode node, final Expander afterRefreshExpander);
  32   public abstract void forceRefresh(final String repositoryRootUrl);
  33   protected abstract NodeLoadState getNodeLoadState();
  34
  35   protected void refreshNodeError(final RepositoryTreeNode node, final SVNErrorMessage text) {
  36     if (node.isDisposed()) {
  37       return;
  38     }
  39     final RepositoryTreeNode existingNode = node.getNodeWithSamePathUnderModelRoot();
  40     if (existingNode == null) {
  41       return;
  42     }
  43     if (existingNode.isDisposed()) {
  44       return;
  45     }
  46
  47     existingNode.setErrorNode(text, getNodeLoadState());
  48   }
  49
  50   protected void refreshNode(final RepositoryTreeNode node, final List<SVNDirEntry> data, final Expander expander) {
  51     if (node.isDisposed()) {
  52       return;
  53     }
  54     final RepositoryTreeNode existingNode = node.getNodeWithSamePathUnderModelRoot();
  55     if (existingNode == null) {
  56       return;
  57     }
  58
  59     if (existingNode.isDisposed()) {
  60       return;
  61     }
  62     expander.onBeforeRefresh(existingNode);
  63     existingNode.setChildren(data, getNodeLoadState());
  64     expander.onAfterRefresh(existingNode);
  65   }
  66 }