tests for DataFileServiceImpl

This commit is contained in:
alecmerdler 2017-03-12 00:29:39 -08:00
parent 527e108d2e
commit 1142519139
3 changed files with 185 additions and 185 deletions

View file

@ -1,181 +1,181 @@
/**
* Service which provides helper methods for downloading a data file from a URL, and extracting
* its contents as .tar, .tar.gz, or .zip file. Note that this service depends on external
* library code in the lib/ directory:
* - jszip.min.js
* - Blob.js
* - zlib.js
*/
angular.module('quay').factory('DataFileService', [function() {
var dataFileService = {};
dataFileService.getName_ = function(filePath) {
var parts = filePath.split('/');
return parts[parts.length - 1];
};
dataFileService.tryAsZip_ = function(buf, success, failure) {
var zip = null;
var zipFiles = null;
try {
var zip = new JSZip(buf);
zipFiles = zip.files;
} catch (e) {
failure();
return;
}
var files = [];
for (var filePath in zipFiles) {
if (zipFiles.hasOwnProperty(filePath)) {
files.push({
'name': dataFileService.getName_(filePath),
'path': filePath,
'canRead': true,
'toBlob': (function(fp) {
return function() {
return new Blob([zip.file(fp).asArrayBuffer()]);
};
}(filePath))
});
}
}
success(files);
};
dataFileService.tryAsTarGz_ = function(buf, success, failure) {
var gunzip = new Zlib.Gunzip(new Uint8Array(buf));
var plain = null;
try {
plain = gunzip.decompress();
} catch (e) {
failure();
return;
}
if (plain.byteLength == 0) {
plain = buf;
}
dataFileService.tryAsTar_(plain, success, failure);
};
dataFileService.tryAsTar_ = function(buf, success, failure) {
var collapsePath = function(originalPath) {
// Tar files can contain entries of the form './', so we need to collapse
// those paths down.
var parts = originalPath.split('/');
for (var i = parts.length - 1; i >= 0; i--) {
var part = parts[i];
if (part == '.') {
parts.splice(i, 1);
}
}
return parts.join('/');
};
try {
var handler = new Untar(new Uint8Array(buf));
handler.process(function(status, read, files, err) {
switch (status) {
case 'error':
failure(err);
break;
case 'done':
var processed = [];
for (var i = 0; i < files.length; ++i) {
var currentFile = files[i];
var path = collapsePath(currentFile.meta.filename);
if (path == '' || path == 'pax_global_header') { continue; }
processed.push({
'name': dataFileService.getName_(path),
'path': path,
'canRead': true,
'toBlob': (function(currentFile) {
return function() {
return new Blob([currentFile.buffer], {type: 'application/octet-binary'});
};
}(currentFile))
});
}
success(processed);
break;
}
});
} catch (e) {
failure();
}
};
dataFileService.blobToString = function(blob, callback) {
var reader = new FileReader();
reader.onload = function(event){
callback(reader.result);
};
reader.readAsText(blob);
};
dataFileService.arrayToString = function(buf, callback) {
var bb = new Blob([buf], {type: 'application/octet-binary'});
var f = new FileReader();
f.onload = function(e) {
callback(e.target.result);
};
f.onerror = function(e) {
callback(null);
};
f.onabort = function(e) {
callback(null);
};
f.readAsText(bb);
};
dataFileService.readDataArrayAsPossibleArchive = function(buf, success, failure) {
dataFileService.tryAsZip_(buf, success, function() {
dataFileService.tryAsTarGz_(buf, success, function() {
dataFileService.tryAsTar_(buf, success, failure);
});
});
};
dataFileService.downloadDataFileAsArrayBuffer = function($scope, url, progress, error, loaded) {
var request = new XMLHttpRequest();
request.open('GET', url, true);
request.responseType = 'arraybuffer';
request.onprogress = function(e) {
$scope.$apply(function() {
var percentLoaded;
if (e.lengthComputable) {
progress(e.loaded / e.total);
}
});
};
request.onerror = function() {
$scope.$apply(function() {
error();
});
};
request.onload = function() {
if (this.status == 200) {
$scope.$apply(function() {
var uint8array = new Uint8Array(request.response);
loaded(uint8array);
});
return;
}
};
request.send();
};
return dataFileService;
}]);
// /**
// * Service which provides helper methods for downloading a data file from a URL, and extracting
// * its contents as .tar, .tar.gz, or .zip file. Note that this service depends on external
// * library code in the lib/ directory:
// * - jszip.min.js
// * - Blob.js
// * - zlib.js
// */
// angular.module('quay').factory('DataFileService', [function() {
// var dataFileService = {};
//
// dataFileService.getName_ = function(filePath) {
// var parts = filePath.split('/');
// return parts[parts.length - 1];
// };
//
// dataFileService.tryAsZip_ = function(buf, success, failure) {
// var zip = null;
// var zipFiles = null;
// try {
// var zip = new JSZip(buf);
// zipFiles = zip.files;
// } catch (e) {
// failure();
// return;
// }
//
// var files = [];
// for (var filePath in zipFiles) {
// if (zipFiles.hasOwnProperty(filePath)) {
// files.push({
// 'name': dataFileService.getName_(filePath),
// 'path': filePath,
// 'canRead': true,
// 'toBlob': (function(fp) {
// return function() {
// return new Blob([zip.file(fp).asArrayBuffer()]);
// };
// }(filePath))
// });
// }
// }
//
// success(files);
// };
//
// dataFileService.tryAsTarGz_ = function(buf, success, failure) {
// var gunzip = new Zlib.Gunzip(new Uint8Array(buf));
// var plain = null;
//
// try {
// plain = gunzip.decompress();
// } catch (e) {
// failure();
// return;
// }
//
// if (plain.byteLength == 0) {
// plain = buf;
// }
//
// dataFileService.tryAsTar_(plain, success, failure);
// };
//
// dataFileService.tryAsTar_ = function(buf, success, failure) {
// var collapsePath = function(originalPath) {
// // Tar files can contain entries of the form './', so we need to collapse
// // those paths down.
// var parts = originalPath.split('/');
// for (var i = parts.length - 1; i >= 0; i--) {
// var part = parts[i];
// if (part == '.') {
// parts.splice(i, 1);
// }
// }
// return parts.join('/');
// };
//
// try {
// var handler = new Untar(new Uint8Array(buf));
// handler.process(function(status, read, files, err) {
// switch (status) {
// case 'error':
// failure(err);
// break;
//
// case 'done':
// var processed = [];
// for (var i = 0; i < files.length; ++i) {
// var currentFile = files[i];
// var path = collapsePath(currentFile.meta.filename);
//
// if (path == '' || path == 'pax_global_header') { continue; }
//
// processed.push({
// 'name': dataFileService.getName_(path),
// 'path': path,
// 'canRead': true,
// 'toBlob': (function(currentFile) {
// return function() {
// return new Blob([currentFile.buffer], {type: 'application/octet-binary'});
// };
// }(currentFile))
// });
// }
// success(processed);
// break;
// }
// });
// } catch (e) {
// failure();
// }
//
// };
//
// dataFileService.blobToString = function(blob, callback) {
// var reader = new FileReader();
// reader.onload = function(event){
// callback(reader.result);
// };
// reader.readAsText(blob);
// };
//
// dataFileService.arrayToString = function(buf, callback) {
// var bb = new Blob([buf], {type: 'application/octet-binary'});
// var f = new FileReader();
// f.onload = function(e) {
// callback(e.target.result);
// };
// f.onerror = function(e) {
// callback(null);
// };
// f.onabort = function(e) {
// callback(null);
// };
// f.readAsText(bb);
// };
//
// dataFileService.readDataArrayAsPossibleArchive = function(buf, success, failure) {
// dataFileService.tryAsZip_(buf, success, function() {
// dataFileService.tryAsTarGz_(buf, success, function() {
// dataFileService.tryAsTar_(buf, success, failure);
// });
// });
// };
//
// dataFileService.downloadDataFileAsArrayBuffer = function($scope, url, progress, error, loaded) {
// var request = new XMLHttpRequest();
// request.open('GET', url, true);
// request.responseType = 'arraybuffer';
//
// request.onprogress = function(e) {
// $scope.$apply(function() {
// var percentLoaded;
// if (e.lengthComputable) {
// progress(e.loaded / e.total);
// }
// });
// };
//
// request.onerror = function() {
// $scope.$apply(function() {
// error();
// });
// };
//
// request.onload = function() {
// if (this.status == 200) {
// $scope.$apply(function() {
// var uint8array = new Uint8Array(request.response);
// loaded(uint8array);
// });
// return;
// }
// };
//
// request.send();
// };
//
// return dataFileService;
// }]);

View file

@ -115,10 +115,10 @@ describe("DataFileServiceImpl", () => {
});
describe("readDataArrayAsPossibleArchive", () => {
// TODO
});
describe("downloadDataFileAsArrayBuffer", () => {
// TODO
});
});
});

View file

@ -9,7 +9,7 @@ declare const Untar: (uint8Array: Uint8Array) => void;
export class DataFileServiceImpl implements DataFileService {
constructor(private fileReaderFactory: () => FileReader) {
}
public blobToString(blob: Blob, callback: (result: string) => void): void {