C# Request.StartProgress方法代码示例

        private IEnumerable<string> _UnpackArchive(string localFilename, string destinationFolder, Request request) {
            var info = new ZipInfo(localFilename);
            var files = info.GetFiles();
            var percent = 0;
            var index = 0;
            var processed = new List<string>();

                // request.Debug("Unpacking {0} {1}", localFilename, destinationFolder);
                var pid = request.StartProgress(0, "Unpacking Archive '{0}' ", Path.GetFileName(localFilename));
                try {
                    info.Unpack(destinationFolder, (sender, args) => {
                        if (args.ProgressType == ArchiveProgressType.FinishFile) {
                            processed.Add(Path.Combine(destinationFolder, args.CurrentFileName));
                            index++;
                            var complete = (index*100)/files.Count;
                            if (complete != percent) {
                                percent = complete;
                                request.Progress(pid, percent, "Unpacked {0}", args.CurrentFileName);
                            }
                            /*
                         * Does not currently support cancellation .
                         * Todo: add cancellation support to DTF compression classes.
                         * */
                            if (request.IsCanceled) {
                                throw new OperationCanceledException("cancelling");
                            }
                        }
                    });
                } catch (OperationCanceledException) {
                    // no worries.
                }

                // request.Debug("DONE Unpacking {0} {1}", localFilename, destinationFolder);
                request.CompleteProgress(pid, true);

            // return the list of files to the parent.
            return processed.ToArray();
        }

        /// <summary>
        ///     Installs a given package.
        /// </summary>
        /// <param name="fastPackageReference">A provider supplied identifier that specifies an exact package</param>
        /// <param name="request">
        ///     An object passed in from the CORE that contains functions that can be used to interact with
        ///     the CORE and HOST
        /// </param>
        public void InstallPackage(string fastPackageReference, Request request) {
            if( request == null ) {
                throw new ArgumentNullException("request");
            }
            if( string.IsNullOrWhiteSpace(fastPackageReference) ) {
                throw new ArgumentNullException("fastPackageReference");
            }
            // Nice-to-have put a debug message in that tells what's going on.
            request.Debug("Calling '{0}::InstallPackage' '{1}'", ProviderName, fastPackageReference);
            var file = fastPackageReference.CanonicalizePath(false);
            if (!file.FileExists()) {
                request.Error(ErrorCategory.OpenError, fastPackageReference, Constants.Messages.UnableToResolvePackage, fastPackageReference);
                return;
            }
            try {
                var package = new InstallPackage(file, DatabaseOpenMode.ReadOnly);

                Installer.SetInternalUI(InstallUIOptions.UacOnly | InstallUIOptions.Silent);

                // todo 1501: support additional parameters!

                var handler = CreateProgressHandler(request);
                _progressId = request.StartProgress(0, "Installing MSI '{0}'", file);
                Installer.SetExternalUI(handler, InstallLogModes.Progress | InstallLogModes.Info);
                Installer.InstallProduct(file, "REBOOT=REALLYSUPPRESS");
                Installer.SetInternalUI(InstallUIOptions.Default);

                Installer.SetExternalUI(handler, InstallLogModes.None);

                YieldPackage(package, file, request);
                package.Close();

                if (Installer.RebootRequired) {
                    request.Warning("Reboot is required to complete Installation.");
                }
            } catch (Exception e) {
                e.Dump();
                request.Error(ErrorCategory.InvalidOperation, file, Constants.Messages.UnableToResolvePackage, file);
            }

            request.CompleteProgress(_progressId, true);
        }

        /// <summary>
        ///     Uninstalls a package
        /// </summary>
        /// <param name="fastPackageReference"></param>
        /// <param name="request">
        ///     An object passed in from the CORE that contains functions that can be used to interact with
        ///     the CORE and HOST
        /// </param>
        public void UninstallPackage(string fastPackageReference, Request request) {
            if( request == null ) {
                throw new ArgumentNullException("request");
            }
            if( string.IsNullOrWhiteSpace(fastPackageReference) ) {
                throw new ArgumentNullException("fastPackageReference");
            }
            // Nice-to-have put a debug message in that tells what's going on.
            request.Debug("Calling '{0}::UninstallPackage' '{1}'", ProviderName, fastPackageReference);

            try {
                Guid guid;
                if (!Guid.TryParse(fastPackageReference, out guid)) {
                    request.Error(ErrorCategory.InvalidArgument, fastPackageReference, Constants.Messages.UnableToResolvePackage, fastPackageReference);
                    return;
                }
                var product = ProductInstallation.GetProducts(fastPackageReference, null, UserContexts.All).FirstOrDefault();
                if (product == null) {
                    request.Error(ErrorCategory.InvalidArgument, fastPackageReference, Constants.Messages.UnableToResolvePackage, fastPackageReference);
                    return;
                }
                var productVersion = product.ProductVersion.ToString();
                var productName = product.ProductName;
                var summary = product["Summary"];

                Installer.SetInternalUI(InstallUIOptions.UacOnly | InstallUIOptions.Silent);
                _progressId = request.StartProgress(0, "Uninstalling MSI '{0}'", productName);
                var handler = CreateProgressHandler(request);

                Installer.SetExternalUI(handler, InstallLogModes.Progress | InstallLogModes.Info);
                Installer.InstallProduct(product.LocalPackage, "REMOVE=ALL REBOOT=REALLYSUPPRESS");
                Installer.SetInternalUI(InstallUIOptions.Default);

                Installer.SetExternalUI(handler, InstallLogModes.None);

                // YieldPackage(product,fastPackageReference, request);
                if (request.YieldSoftwareIdentity(fastPackageReference, productName, productVersion, "multipartnumeric", summary, "", fastPackageReference, "", "") != null) {
                    request.AddMetadata(fastPackageReference, "ProductCode", fastPackageReference);
                }

                request.Warning("Reboot is required to complete uninstallation.");
            } catch (Exception e) {
                e.Dump();
            }
            request.CompleteProgress(_progressId, true);
            _progressId = 0;
        }

        /// <summary>
        ///     Installs a given package.
        /// </summary>
        /// <param name="fastPackageReference">A provider supplied identifier that specifies an exact package</param>
        /// <param name="request">
        ///     An object passed in from the CORE that contains functions that can be used to interact with
        ///     the CORE and HOST
        /// </param>
        public void InstallPackage(string fastPackageReference, Request request) {
            if( request == null ) {
                throw new ArgumentNullException("request");
            }
            if( string.IsNullOrWhiteSpace(fastPackageReference) ) {
                throw new ArgumentNullException("fastPackageReference");
            }
            // Nice-to-have put a debug message in that tells what's going on.
            request.Debug("Calling '{0}::InstallPackage' '{1}'", ProviderName, fastPackageReference);
            var file = fastPackageReference.CanonicalizePath(false);
            if (!file.FileExists()) {
                request.Error(Microsoft.PackageManagement.Internal.ErrorCategory.OpenError, fastPackageReference, Constants.Messages.UnableToResolvePackage, fastPackageReference);
                return;
            }
            string errorLogFolder = Path.GetTempPath() + Guid.NewGuid();
            DirectoryInfo errorDir = Directory.CreateDirectory(errorLogFolder);
            string errorLogPath = errorLogFolder + "\\msi.log";       
            try {
                var package = new InstallPackage(file, DatabaseOpenMode.ReadOnly);

                Installer.SetInternalUI(InstallUIOptions.UacOnly | InstallUIOptions.Silent);

                // todo 1501: support additional parameters!

                if (request.Sources != null && request.Sources.Any()) {
                    // The 'file' can be from a temp location downloaded by a chained provider. In that case, we can show 
                    // the orignal package source specified in the request.Sources.
                    _progressId = request.StartProgress(0, Resources.Messages.InstallingMSIPackage, request.Sources.FirstOrDefault());

                } else {
                    _progressId = request.StartProgress(0, Resources.Messages.InstallingMSIPackage, file);
                }

                var handler = CreateProgressHandler(request, Resources.Messages.Installing);

                Installer.SetExternalUI(handler, InstallLogModes.Progress | InstallLogModes.Info);
                Installer.EnableLog(InstallLogModes.Error, errorLogPath);
                Installer.InstallProduct(file, "REBOOT=REALLYSUPPRESS");
                Installer.SetInternalUI(InstallUIOptions.Default);

                Installer.SetExternalUI(handler, InstallLogModes.None);

                if (request.Sources != null && request.Sources.Any()) {

                    // The 'file' can be from a temp location downloaded by a chained provider. In that case, we can show 
                    // the orignal package source specified in the request.Sources.
                    YieldPackage(package, request.Sources.FirstOrDefault(), request);
                } else {
                    YieldPackage(package, file, request);
                }

                package.Close();

                if (Installer.RebootRequired) {
                    request.Warning(Resources.Messages.InstallRequireReboot);
                }

                if (errorDir.Exists)
                    errorDir.Delete(true);
            } catch (Exception e) {
                e.Dump();
                request.Error(Microsoft.PackageManagement.Internal.ErrorCategory.InvalidOperation, file, Constants.Messages.PackageFailedInstallErrorLog, file, errorLogPath);
            }

            request.CompleteProgress(_progressId, true);
        }