[221211] IFileService API for batch operations IFileService.delete() returns boolean false for silent no-op

rse/plugins/org.eclipse.rse.services.dstore/src/org/eclipse/rse/internal/services/dstore/files/DStoreFileService.java

@@ -1351,7 +1351,7 @@ public class DStoreFileService extends AbstractDStoreService implements IFileSer
 
 	}
 
-	public void delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException
+	public boolean delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException
 	{
 		String remotePath = remoteParent + getSeparator(remoteParent) + fileName;
 		DataElement de = getElementFor(remotePath);
@@ -1374,7 +1374,7 @@ public class DStoreFileService extends AbstractDStoreService implements IFileSer
 		// When running a server older than 2.0.1 success is not set for directories, so we must
 		// check if the source message is an empty string
 		if (sourceMsg.equals(IServiceConstants.SUCCESS) || sourceMsg.equals("")) { //$NON-NLS-1$
-			return;
+			return true;
 		}
 		String msgTxt = NLS.bind(ServiceResources.FILEMSG_DELETE_FILE_FAILED, FileSystemMessageUtil.getSourceLocation(status));
 		String msgDetails = ServiceResources.FILEMSG_DELETE_FILE_FAILED_DETAILS;

rse/plugins/org.eclipse.rse.services.files.ftp/src/org/eclipse/rse/internal/services/files/ftp/FTPService.java

@@ -1024,7 +1024,7 @@ public class FTPService extends AbstractFileService implements IFTPService, IFil
 	/* (non-Javadoc)
 	 * @see org.eclipse.rse.services.files.IFileService#delete(org.eclipse.core.runtime.IProgressMonitor, java.lang.String, java.lang.String)
 	 */
-	public void delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException {
+	public boolean delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException {
     	remoteParent = checkEncoding(remoteParent);
     	fileName = checkEncoding(fileName);
 
@@ -1035,13 +1035,22 @@ public class FTPService extends AbstractFileService implements IFTPService, IFil
 
 			if (_commandMutex.waitForLock(monitor, Long.MAX_VALUE)) {
 				try {
+					//Try to delete even if it looked like the file doesn't exist,
+					//since existence might have been cached and be out-of-date
 					FTPClient ftpClient = getFTPClient();
 					internalDelete(ftpClient, remoteParent, fileName, file.isFile(), progressMonitor);
 				}
 				catch (IOException e)
 				{
+					if (!file.exists())
+						return false;
 					throw new RemoteFileIOException(e);
 				}
+				catch (SystemMessageException e) {
+					if (!file.exists())
+						return false;
+					throw e;
+				}
 				finally {
 					_commandMutex.release();
 				}
@@ -1051,6 +1060,7 @@ public class FTPService extends AbstractFileService implements IFTPService, IFil
 		} finally {
 			progressMonitor.end();
 		}
+		return true;
 	}
 
 	private void internalDelete(FTPClient ftpClient, String parentPath, String fileName, boolean isFile, MyProgressMonitor monitor)

rse/plugins/org.eclipse.rse.services.local/src/org/eclipse/rse/internal/services/local/files/LocalFileService.java

@@ -1015,7 +1015,7 @@ public class LocalFileService extends AbstractFileService implements ILocalServi
 		return new LocalVirtualHostFile(child);
 	}
 
-	public void delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException
+	public boolean delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException
 	{
 		if (fileName.endsWith(ArchiveHandlerManager.VIRTUAL_SEPARATOR))
 		{
@@ -1026,23 +1026,30 @@ public class LocalFileService extends AbstractFileService implements ILocalServi
 		{
 			remoteParent = remoteParent + ArchiveHandlerManager.VIRTUAL_SEPARATOR;
 		}
+		boolean result = true;
 		File fileToDelete = new File(remoteParent, fileName);
 		if (ArchiveHandlerManager.isVirtual(fileToDelete.getAbsolutePath()))
 		{
-			deleteFromArchive(fileToDelete, monitor);
+			result = deleteFromArchive(fileToDelete, monitor);
 		}
 		else if (ArchiveHandlerManager.getInstance().isArchive(fileToDelete))
 		{
-			deleteArchive(fileToDelete);
+			result = deleteArchive(fileToDelete);
 		}
 		if (fileToDelete.isDirectory())
 		{
-			deleteContents(fileToDelete, monitor);
+			result = deleteContents(fileToDelete, monitor);
 		}
 		else
 		{
-			fileToDelete.delete();
+			result = fileToDelete.delete();
 		}
+		if (!result && fileToDelete.exists()) {
+			// Deletion failed without specification why... likely a Security
+			// problem?
+			throw new RemoteFileSecurityException(null);
+		}
+		return result;
 	}
 
 	public void deleteBatch(String[] remoteParents, String[] fileNames, IProgressMonitor monitor) throws SystemMessageException
@@ -1099,9 +1106,9 @@ public class LocalFileService extends AbstractFileService implements ILocalServi
 			CheckArchiveOperationStatusThread checkArchiveOperationStatusThread = new CheckArchiveOperationStatusThread(archiveOperationMonitor, monitor);
 			checkArchiveOperationStatusThread.start();
 		}
-		boolean returnValue = handler.delete(child.fullName, archiveOperationMonitor);
+		try {
-		if (!returnValue)
+			return handler.delete(child.fullName, archiveOperationMonitor);
-		{
+		} catch (SystemMessageException e) {
 			if (monitor != null && monitor.isCanceled())
 			{
 				//This operation has been cancelled by the user.
@@ -1109,12 +1116,12 @@ public class LocalFileService extends AbstractFileService implements ILocalServi
 			}
 			// SystemPlugin.logError("LocalFileSubSystemImpl.deleteFromArchive(): Archive Handler's delete method returned false. Couldn't delete virtual object.");
 			String msgTxt = NLS.bind(LocalServiceResources.FILEMSG_DELETE_VIRTUAL_FAILED, destination);
-			String msgDetails = LocalServiceResources.FILEMSG_DELETE_VIRTUAL_FAILED_DETAILS;
+			//String msgDetails = LocalServiceResources.FILEMSG_DELETE_VIRTUAL_FAILED_DETAILS;
 			throw new SystemMessageException(new SimpleSystemMessage(Activator.PLUGIN_ID,
 					ILocalMessageIds.FILEMSG_DELETE_VIRTUAL_FAILED,
-					IStatus.ERROR, msgTxt, msgDetails));
+					IStatus.ERROR,
+					msgTxt, e));
 		}
-		return true;
 	}
 
 	protected boolean deleteArchive(File file)

rse/plugins/org.eclipse.rse.services.ssh/src/org/eclipse/rse/internal/services/ssh/files/SftpFileService.java

@@ -891,7 +891,7 @@ public class SftpFileService extends AbstractFileService implements ISshService,
 		return result;
 	}
 
-	public void delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException
+	public boolean delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException
 	{
 		String fullPath = concat(remoteParent, fileName);
 		Activator.trace("SftpFileService.delete.waitForLock"); //$NON-NLS-1$
@@ -912,6 +912,7 @@ public class SftpFileService extends AbstractFileService implements ISshService,
 				}
 				if (attrs==null) {
 					//doesn't exist, nothing to do
+					return false;
 				} else if (attrs.isDir()) {
 					try {
 						getChannel("SftpFileService.delete.rmdir").rmdir(fullPathRecoded); //$NON-NLS-1$
@@ -941,6 +942,7 @@ public class SftpFileService extends AbstractFileService implements ISshService,
 		} else {
 			throw new SystemLockTimeoutException(Activator.PLUGIN_ID);
 		}
+		return true;
 	}
 
 	public void rename(String remoteParent, String oldName, String newName, IProgressMonitor monitor) throws SystemMessageException

rse/plugins/org.eclipse.rse.services/src/org/eclipse/rse/services/files/IFileService.java

@@ -406,16 +406,19 @@ public interface IFileService extends IService
 
 	/**
 	 * Delete a file or folder on the host.
-	 *
+	 * 
 	 * @param remoteParent the folder containing the file to delete
 	 * @param fileName the name of the file or folder to delete
 	 * @param monitor the progress monitor
-	 * @throws SystemMessageException if an error occurs. Typically this would
+	 * @return <code>true</code> if the requested element was successfully
-	 *             be one of those in the RemoteFileException family.
+	 * 	deleted, or <code>false</code> if the element had not existed in the
-	 *
+	 * 	first place so the operation was a silent no-op.
+	 * @throws SystemMessageException if an error occurs or the user canceled
+	 * 		the operation.
+	 * 
 	 * @since org.eclipse.rse.services 3.0
 	 */
-	public void delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException;
+	public boolean delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException;
 
 	/**
 	 * Delete a set of files or folders on the host. Should throw an exception

wince/org.eclipse.rse.subsystems.wince/src/org/eclipse/rse/internal/services/wince/files/WinCEFileService.java

@@ -189,14 +189,14 @@ public class WinCEFileService extends AbstractFileService implements IWinCEServi
     }
   }
 
-  public void delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException {
+  public boolean delete(String remoteParent, String fileName, IProgressMonitor monitor) throws SystemMessageException {
     String fullPath = concat(remoteParent, fileName);
     IRapiSession session = sessionProvider.getSession();
     try {
       if (isDirectory(session, fullPath)) {
         // recursive delete if it is a directory
         RapiFindData[] allFiles = session.findAllFiles(concat(fullPath, "*"), Rapi.FAF_NAME); //$NON-NLS-1$
-        for (int i = 0 ; i < allFiles.length ; i++) {
+        for (int i = 0; i < allFiles.length; i++) {
           delete(fullPath, allFiles[i].fileName, monitor);
         }
         session.removeDirectory(fullPath);
@@ -208,6 +208,7 @@ public class WinCEFileService extends AbstractFileService implements IWinCEServi
       //FIXME error handling
       throw new RemoteFileException(e.getMessage(), e);
     }
+    return true;
   }
 
   public void download(String remoteParent, String remoteFile, File localFile, boolean isBinary, String hostEncoding,