This procedure creates a new file in the specified folder, but does not open it in an editor. The next step is to learn how to open the remote file in an editor, make changes, then save those changes on the remote machine. Once a file exists on the remote machine, RSE provides the ability to edit it on the development machine without having to manually transfer the files between machines.
Saving a file during a remote edit session is no different than doing the same during a local edit session. After editing and uploading a file on the remote machine, it can be manipulated using an SSH Shell or Terminal -- two additional services provided by the RSE plugin. From wiki. This approach involves selectively replicating files from the file base on the remote system to the workspace project. A file in the file base is replicated from remote system to workstation on request.
When the user edits a source file and saves the changes to their workspace file resource, the replica on the remote system becomes out of sync with the workstation. The changed file must be copied back to the remote system to update the replica there, thereby bringing it back into sync. Maintaining a replica of selective files on the workstation improves performance over a pure remote approach because frequently edited files only have to be copied to the workstation once, as opposed to each time the editor is opened.
The workstation replica also allows some offline editing that would be impossible in the pure remote approach. Figure 2. Activity pattern in remote system-resident file base replicated to workstation. While superficially similar to replication involving a workstation-resident file base, the overall characteristics are quite different:.
Due to the fact that the putative master copy of the file base is kept on the remote system and not the workstation, general purpose Eclipse team providers associated with the workspace cannot provide VCM and team support for the project's important files. However, the remote system may have its own tools for version and configuration managing files and for supporting teams of developers working together.
If it does, the obvious first approximation is to treat these tools much like other remote system tools: the plug-in that supports remote development should provides appropriate views and actions on remote objects to invoke these tools. Version 2. Projects in the workspace can be assigned a team provider; each workspace project can have a different one. The recommended way to achieve good integration with the Eclipse workbench is to build special-purpose team providers for the various VCM and team products available on the remote system.
The user could then be given a choice of suitable remote team providers for their remote projects. When the file base resides on the remote system, the replicating approach is generally recommended for all operating environments due to its flexibility, universal applicability, and support for limited offline editing. This approach is somewhat robust in the face of disconnections between the workstation and the remote system because the workstation always has the more up-to-date replicas of any files it has on hand.
However, as long as there are files that have been changed in the workspace but not synchronized with the remote system, the user will not be able to reach closure until the remote system comes back online and their changes committed to the master copy of the file base. The shared access approach is recommended only in operating environments where all of the conditions listed in the earlier section are true.
Workstation-resident file base and remote system-resident file base characterize the two main operating environments for remote development.
Remote development with the Eclipse Platform can support either mode. The operating environment that is important to the majority of customers will likely dictate one approach over the other. This suggests treating them as having a remote system-resident file base. Full integration with Eclipse would require writing specialized team providers that work with existing VCM products native to these systems e. In this case, the file base is not pre-existing on the remote system and full offline editing is desirable, which suggests a workstation-resident file base is appropriate.
Could a single remote development plug-in be built to support operating environments with either a workstation-resident file base or a remote system-resident file base? The answer is undoubtedly yes. Whether the extra work to support both would be worthwhile depends on the mix of customers being served. This appendix walk through a simple example of remote development with Eclipse, just to show how the various elements come together in practice.
As a hypothetical example of remote development, we consider how to let a user develop FOOBOL programs on a legendary HAL mainframe computer of which there is only one remaining installation.
Assume that great library of existing of FOOBOL source files reside on local disk file system of our HAL mainframe; assume that the developer's objective is to change some of these library source files, and occasionally add new ones to the library; and, finally, assume that the FOOBOL compiler already exists for the HAL mainframe, but would be too expensive to port to run on the workstation. Despite the example's crude simplicity, it does have the essential elements common to most remote development paradigms.
In our example, if the user is to develop a new payroll module in FOOBOL for their HAL mainframe, they can be expected to create themselves a new project named "Payroll" for this activity. The user's "Payroll" project has the capability for developing FOOBOL programs for a remote HAL system capabilities are usually acquired at project creation time, but can also be added or removed from any existing project.
Internally, the project would be tagged with a distinctive project nature. Internally, each file object would record the coordinates URL of the actual file on the HAL file system; this information is sufficient for identifying to both workstation and mainframe any particular source file. If the library uses path-structured names, then the object model would also contain objects corresponding to path prefixes folders.
The set of source files to be included in the object model might be as simple as all files in a particular subtree of the HAL file system, or might be a list of files in a variety of places hand-picked by the user. For simplicity, assume that it's the former. All "seed" information that is obtained from the user the host name and port of the HAL computer, user id and password for authentication, root source directory, etc.
The information returned is sufficient to generate the workstation object model. All essential information is generally kept in in-memory data structures to ensure that object model navigations can be performed instantaneously. This view presents a mix of project objects, from the workspace object model, together with remote FOOBOL source file objects. The view is build with a standard JFace tree viewer and specialized content and label provider.
When all objects that a user deals with are local, there is no value in calling attention to that fact. Likewise when all objects are remote. With a remote system-resident file base, any given FOOBOL source file object could be in one of 3 interesting states: on HAL only; in workspace and in sync; in workspace but out of sync. Which state a file is in may be quite important to the user: files in the workspace will be still available if disconnected from HAL, whereas others will not; out of sync files contain important changes that have not been safely captured, whereas files that are in sync are expendable and can be dropped from the local replica without loss of information.
So while it is worthwhile to seamlessly integrate the remote with the local, it does not pay to be too transparent about it. A specialized label provider provides special icon decorations that manifest important background information to the user. The user continues to work while the compiler is running; when the compile finishes, the collected error messages are retrieved and displayed to the user as a text log in a FOOBOL compiler messages view.
Individual error messages are also broken out and converted into markers. A special kind of problem marker is used to record the relevant source file and offending line.
If the remote file is not available locally, these markers are placed instead on the "Payroll" project resource. The user is informed whenever the FOOBOL source file being opened for editing is being copied locally, so that they can maintain a general background awareness of the whereabouts of their files, in case the connection to HAL system suddenly drops.
Any file on the remote file system can now be viewed or edited using Eclipse as if it were a local file. It may be convenient to also display the content of your data directory i.
This can be accomplished easily by creating a new filter. Obviously, the same can be done for your scratch directory. Once a connection has been created, it is trivial to connect to it again. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses.
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