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The source code/* * Sun Public License Notice * * The contents of this file are subject to the Sun Public License * Version 1.0 (the "License"). You may not use this file except in * compliance with the License. A copy of the License is available at * http://www.sun.com/ * * The Original Code is NetBeans. The Initial Developer of the Original * Code is Sun Microsystems, Inc. Portions Copyright 1997-2003 Sun * Microsystems, Inc. All Rights Reserved. */ package org.netbeans.modules.masterfs.providers; import java.awt.Image; import java.beans.PropertyVetoException; import java.io.IOException; import org.openide.filesystems.FileSystem; /** * An object that implements AutoMountProvider is called from MasterFileSystem and can affect * behaviour of MasterFileSystem. MasterFileSystem invokes individual AutoMountProviders to obtain * instance of FileSystem for defined mount point (see {@link #createFileSystem}). * If there exists at least one implementation of AutoMountProvider, which returns non null FileSystem, * then such FileSystem is mounted into MasterFileSystem. This mechanism can be called automatic mounting. * * So, AutoMountProvide must implement logic where (which mount point) and what to mount * (which FileSystem implementation) into MasterFileSystem. * * @see org.netbeans.modules.masterfs.providers.FileSystemProvider#initialize * @see org.netbeans.modules.masterfs.providers.MountSupport * @author rm111737 */ public abstract class AutoMountProvider { /** Provides filesystem with root defined by mountPoint or return null. * If method method isRootOfFileSystem returns false for the same mountPoint, * then method createFileSystem must return null. * And if method isRootOfFileSystem returns true, then method createFileSystem mustn't return null. * @param mountPoint corresponds to java.io.File.getAbstractPath * But be aware, that this doesn't mean, that such file must really exist. * mountPoint may also address virtual location. * @return instance of FileSystem or null. FileObject hierarchy within a delegate FileSystem * must precisely match the File hierarchy and must not hide any files which exist on disk. */ public abstract FileSystem createFileSystem (String mountPoint) throws IOException, PropertyVetoException ; /** * If method method isRootOfFileSystem returns false for the same mountPoint, * then method createFileSystem must return null. * And if method isRootOfFileSystem returns true, then method createFileSystem mustn't return null. * @param mountPoint corresponds to java.io.File.getAbstractPath * But be aware, that this doesn't mean, that such file must really exist. * mountPoint may also address virtual location. * @return true if mountPoint is expected to be root of FileSystem, that provides * method {@link #createFileSystem} */ public abstract boolean isRootOfFileSystem (String mountPoint); /** * Gets icon for filesystem with root defined by mountPoint or null. Null can be * returned only if method isRootOfFileSystem returns false for the same mountPoint. * @param mountPoint corresponds to java.io.File.getAbstractPath * But be aware, that this doesn't mean, that such file must really exist. * mountPoint may also address virtual location. * @param iconType constant to indicate icon (@see BeanInfo) * @return filesystem icon for filesystem with root defined by mountPoint or null */ public Image getIcon (String mountPoint, int iconType) { return null; } } |
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