46 lines
1.4 KiB
Java
46 lines
1.4 KiB
Java
/**
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*
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*/
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package org.gcube.portlets.user.workspaceexplorerapp.server;
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import java.util.Comparator;
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import org.gcube.portlets.user.workspaceexplorerapp.client.Util;
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import org.gcube.portlets.user.workspaceexplorerapp.client.WorkspaceExplorerAppConstants;
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import org.gcube.portlets.user.workspaceexplorerapp.shared.Item;
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/**
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* A comparator that sorts the items first by type, folder up others down, the each group alphabetically on the item name.
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* @author "Federico De Faveri defaveri@isti.cnr.it"
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*/
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public class ItemComparator implements Comparator<Item> {
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/**
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* {@inheritDoc}
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*/
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@Override
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public int compare(Item item1, Item item2) {
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//if one of the item is folder and the other one not, we move up the folder
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boolean isItem1Folder = Util.isFolder(item1.getType());
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boolean isItem2Folder = Util.isFolder(item2.getType());
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boolean isSpecialFolder1 = isSpecialFolder(item1);
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boolean isSpecialFolder2 = isSpecialFolder(item2);
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//XOR
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if (isSpecialFolder1 ^ isSpecialFolder2) return isSpecialFolder1 ? -1 : 1;
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//XOR
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if (isItem1Folder ^ isItem2Folder) return isItem1Folder ? -1 : 1;
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//otherwise we compare the names
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return String.CASE_INSENSITIVE_ORDER.compare(item1.getName(), item2.getName());
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}
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private boolean isSpecialFolder(Item item) {
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return item.getName().equals(WorkspaceExplorerAppConstants.VRE_FOLDERS_LABEL) && item.isSpecialFolder();
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}
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}
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