You may encounter an error pointing to the eclipse efs filesystem. There are several steps you can take to fix this problem. Therefore, we will return to this shortly.
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The Eclipse File System (EFS) is an abstract file system API. It is widely used in the Eclipse platform to update implementation details of the file community used to store data in the main workspace. This page is a repository, similar to information for plugin developers working on their own EFS implementations.
This page contains important information about the Eclipse File System (EFS) API for developers working on code on this Eclipse platform. While some of this information may be useful to others, it will focus on using the EFS platform and then be able to discuss internal platform details that are not found outside of the platforms.
Path Or Location
In platform jargon, there is an important difference between the path and the location of an IResource. The workspace itself can be displayedCreate yourself as a simple tree with IWorkspaceRoot at the root, IProject at the level and first IFolder / IFile, which are nested as deeply into each project as necessary. Resources also exist on specific file systems, and each file system can be thought of as a tree. However, the workspace tree and the computer file system tree are not necessarily the same. For example, each IProject can be associated with a different file system, and each separate and related resource can be associated with a different large file system. So, we need a way to find resources in the desktop tree, as well as a way to store resources on the file system.
The resource location is the position of the resource in the workspace tree. The resource path is obtained by calling IResource.getFullPath (). The resource path is often represented by an IPath object.
Location relative to a resource is the position of each resource in the file system. The resource location is obtained by calling IResource.getLocationURI (). Prior to EFS, the location resource was also exposed to IPath (IResource.getLocation ()). However, starting with Eclipse 3.2, usingOther IPaths for locating a resource have become obsolete. The location of the resource a on the file system must always be represented as a URI. This is because IPath is not efficient enough to represent different types of filesystems – it depends entirely on the local filesystem.
If you see a mode that uses IPath when you control a mode that includes the location of resources on disk, this is incorrect and must be moved to use the URI. The same applies to all location methods using IPath, such as IResource.getLocation (), IProjectDescription.getLocation (), etc. These methods exist except for backward compatibility.
Convert Path To Location
Given the path to the workspace, getting the location is pretty straightforward:
Convert From Website To Path
Finding a path to a resource that exactly matches a specific location is a little more expensive. Also, due to resource constraints, you can associate unlimited resources with a specific location. If in not sure if this is a file or directory comparison, you may need to find out first.
Note which experts claim that these “find *” methods are generally not fast because they have to search for a function to find suitable resources. Use in combination with caution. In general, if you find yourself doing this in a loop, see if there are other approaches to your problem.
Convert Between IPath Locations And URI Locations
If you are working with backward compatibility code, you may need to manage locations through the provided IPath. The best approach is to rewrite the URI as much as possible, in this case converting the IPath to a URI if necessary. The org.eclipse.core.filesystem.URIUtil class has a payout method for this:
Similarly, you can switch from URI to IPath, but only if you are sure the URI is on the local filesystem.
URI Versus IFileStore
The first thing you’ll notice is that URIs are not a very useful class. It has very minimal convenience methods and has no arrangements.properties that could be associated with the filesystem are excellent input stream for reading, creating, deleting, and so on. URIs are pure abstraction — they are only unique target names, but no interaction methods are defined that involve this object. This is where IFileStore comes in. IFileStore provides all the forms you would expect from handling record data: copy, move, delete, mkdir, open input stream, open output stream, etc. There are many useful documents here that you can learn to use ifilestore:
- Filesystem API.
- The Eclipse section of the Migration Guide 3.2.
- Launching EclipseZone to discuss sefs
- Insects Plan Presentation 106176: More Flexible Jobs
|repository||: pserver: [email protected]: / cvsroot / eclipse|
Also required: org.eclipse.core.tests.harness, org.eclipse.test.performance
IPath somePath = ...; // the path you really want find, to the placeThe root of IWorkspaceRoot is ResourcesPlugin.getWorkspace (). GetRoot ();IResource Resource = root.findMember (someLocation);if! = (zero resource) URI location - resource.getLocationURI ();
URI someLocation = ...; // the place where you want to find the resource for which the path is specifiedboolean isDir means EFS.getStore (someLocation) .fetchInfo () .isDirectory ();IWorkspaceRoot root = ResourcesPlugin.getWorkspace (). GetRoot ();if (istDir) IFolder  - folder means root.findContainersForLocationURI (someLocation); another IFile  electronic files = root.findFilesForLocationURI (someLocation);
IPath locationAsPath = ...; // location via formURI ipath locationASURI = URIUtil.toURI (locationAsPath);
URI locationAsURI is the same ...; // some in the form of Location URIif (EFS.SCHEME_FILE.equals (locationAsURI.getScheme ())) IPath locationAsPath = URIUtil.toPath (locationAsURI);
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