Just trying to reduce some boilerplate. I kept this as a separate commit to
illustrate clearly how this type of things is done since we'll have people
learning TypeScript.
* src/types/misc.ts (NodeCallback<T,R>): New type.
* src/server/dapi/TokenedDataApi.ts: Use it.
* test/server/dapi/TokenedDataApiTest.ts: Use it.
This integrates the PersistentTokenStore into the DataAPI system via a
decorator. Unfortunately, it requires an API change and propagating data
through the system is a huge mess, which is the topic of a following
commit. The API modification was a compromise.
This modifies the interface of DataApi to include a third parameter. I am
continuing to export the old easejs interface for an incremental migration
away from it. That old interface will be modified next commit, since
it requires modifying a lot of files and will muddy up this commit.
* src/dapi/DataApi.ts: Rename from js. Add types. Add new interface.
Continue exporting old.
* src/server/dapi/TokenedDataApi.ts: New class.
* test/server/dapi/TokenedDataApiTest.ts: New test cases.
This creates an interface for TokenStore. The main motivation of this right
now is testing, since I'm punting on figuring out a mock framework right
now (due to time constraints).
* src/server/token/TokenStore.ts: Rename file.
* src/server/token/store/PersistentTokenStore.ts: Rename from TokenStore.
* test/server/token/TokenStoreTest.ts: Rename file.
* test/server/token/store/PersistentTokenStoreTest.ts: Rename from TokenStoreTest.
This is much more useful information than the last modified. For example:
- Token A is created. It becomes the last modified.
- Token B is created. It becomes the last modified.
- Token A completes. Mismatch. It becomes the last modified.
- Token B completes. Mismatch. It becomes the last modified.
So in this case, we're unable to use the flag to determine whether we should
ignore the token. But if we instead us the new flag to see what token was
last _created_, the problem is solved.
This should have been obvious the first time around.
* src/server/token/MongoTokenDao.ts (updateToken): Query
`lastState'. Return its value. Update its value.
(getToken): Query lastState. Return its value.
* src/server/token/Token.ts (Token)[last_state]: New field.
* src/server/token/TokenDao.ts (TokenQueryResult, TokenNamespaceResults):
Use type instead of interface.
(TokenStateHistory): New type.
(TokenNamespaceData)[lastState]: New optional field.
(TokenData)[prev_state]: New field.
* src/server/token/TokenStore.ts: Return previous state data for each
method.
* test/server/token/MongoTokenDaoTest.ts: Add last_state.
* test/server/token/TokenStoreTest.ts: Likewise.
The primary use case for this is currently the DataAPI, and the quote id is
only available at the highest level of the server, before dapis are
processed.
In any case, the TokenStore was already described in terms of a combination
of document id; namespace; and root field; so it makes sense for doc id to
be part of the constructor.
If a more generic TokenStore is needed in the future, we could go back to
the previous API and wrap it in another class, like a partially applied
function (e.g. `DocumentTokenStore`).
* src/server/token/TokenStore.ts: Move doc_id out of arguments and into the
constructor.
* test/server/token/TokenStoreTest.ts: Update accordingly.
Does not yet support token updates.
* src/server/token/Token.ts (TokenStateDeadable, TokenStateDoneable,
TokenStateAcceptable, Token): New types.
* src/server/token/TokenStore.ts: New class.
* test/server/token/TokenStoreTest.ts: New test case.
This causes the DAO to return the state of the document prior to the
database operation (in the case of a retrieval, the previous state is the
same as the current state). This will allow determining whether other
tokens were modified since a previous request.
* src/server/token/MongoTokenDao.ts: Stop using TokenType in favor of new
TokenState.
(updateToken): Query for and return previous state. Use findAndModify
instead of update.
(getToken): Return previous state. Minor changes to account for new
TokenQueryResult types (null=>undefined).
* src/server/token/Token.ts: Add comments for existing Token{Id,Namespace}
nominal types.
(TokenState): New string enum.
* src/server/token/TokenDao.ts: Import new TokenState.
(TokenDao)[updateToken]: Use it.
(TokenType): Remove.
(TokenQueryResult, TokenNamespaceResults, TokenNamespaceData):
null=>undefined for unavailable value. null was wrong.
(TokenStatus): Token{Type=>State}.
(TokenData)[prev_state, prev_status]: New fields.
* test/server/token/MongoTokenDaoTest.ts: Update tests accordingly.
Since some of these data are generated within TokenDao (e.g. the timestamp),
the caller cannot infer all values.
* src/server/token/MongoTokenDao.ts (updateToken): Return
Promise<{void=>TokenData}>.
* src/server/token/TokenDao.ts (TokenDao)[#updateToken]: Update interface
accordingly.
* test/server/token/MongoTokenDaoTest.ts: Update test accordingly.
Rather than replying with null, which complicates using the returned promise
efficiently, we'll respond with a unique error that allows us to distinguish
between a database failure and a missing token.
These are more traditional errors, but we're moving toward structured
logging, so I want error objects that provide more context. I'll explore
that a bit more in next commit. Unfortunately, the untypedness of Promise
rejections make for a less than desirable situation here. Async/await is
not yet an option since we're still compiling to ES5 (have to support
IE11), and TS compiles async/await into generators for environments that
don't support them, which also are not available in ES5.
* src/server/service/TokenedService.js (_getQuoteToken): Remove null check,
since this situation can no longer occur.
* src/server/token/MongoTokenDao.ts (getToken): Remove null from return type
union; reject with `UnknownTokenError' instead.
* src/server/token/TokenDao.ts: Modify interface accordingly.
* src/server/token/UnknownTokenError.ts: New class.
* test/server/token/MongoTokenDaoTest.ts: Modify tests accordingly. Add
missing test for latest token namespace missing.
TokenDao has been renamed to MongoTokenDao. While it's good for this to
have its own interface anyway, the immediate motivation was for unit tests:
I started playing with mocking with TypeScript and researching some
libraries, but I don't have time to research enough to commit to any of them
at the moment. Interfaces remove the need to mock at all.
This also stops using `export default' in favor of just importing by
name. Using defaults only saves us a few characters, and it makes for
awkward syntax in various cases (e.g. with multiple exports). But I'm still
new to TS, so who knows if I'll be flip-flopping on this decision in the
future. If we kept to our normal 1:1 file:definition convention, it
wouldn't cause problems, but based on the types I've had to define so far,
that'd cause way too much bloat and boilerplate.
* src/server/daemon/controller.js: No long import `default'. Use
`MongoTokenDao'.
* src/server/token/TokenedService.js: Stop checking type (since TS
interfaces do not result in compiler output, easejs cannot validate
against them.)
* src/server/token/MongoTokenDao.ts: Rename from `TokenDao.ts'.
* src/server/token/TokenDao.ts: Rename from `TokenQueryResult.ts'.
(TokenDao): New interface.
* src/server/token/TokenQueryResult.ts: Rename to `TokenDao.ts'.
* test/server/token/MongoTokenDaoTest.ts: Rename from `TokenDaoTest.ts'.
* src/document/Document.ts: New file.
* src/server/token/TokenDao.ts: quote=>document and use DocumentId.
* test/server/token/TokenDaoTest.ts: Likewise.
This beings an experiment with nominal typing using what the TS community
calls "branding". The lack of nominal types was one of my biggest
disappointments with TS, so this should really help to mitigate bugs
resulting from misappropriation of data.
* src/server/token/Token.ts: New file.
* src/server/token/TokenDao.ts: Use Token{Id,Namespace}.
* src/server/token/TokenQueryResult.ts: Likewise.
* src/types/misc.d.ts: Introduce NominalType and UnixTimestamp.
* test/server/token/TokenDaoTest.ts: Use nominal types.
* src/server/daemon/controller.js (getUnixTimestamp): New method. Not
ideal, but better than where it was.
(_initExportService): Pass to TokenDao constructor.
* src/server/token/TokenDao.ts (_getTimestamp): New field.
(constructor)[get_timestamp]: New param.
(updateToken): Use it.
* test/server/token/TokenDaoTest.ts: Provide stub timestamp function.
Our coding standards are to create a separate file for classes and
interfaces, but this is a bit different: this "interface" is more like a
struct, and it's used to define the return type of a method of this
class. Since it's inherently coupled, I'm keeping it in the same file.
The idea is that the caller will provide its own abstraction rather than
continuing to export this one. Note that Typescript does support
re-exporting symbols if need be.
* src/server/daemon/controller.js: Adjust import of TokenDao (TS compiles
default modules as `default').
* src/server/service/TokenedService.js: Adjust import of TokenDao.
* src/server/token/TokenDao.ts: Export TokenDao as `default'. Export
TokenData.
* test/server/token/TokenDaoTest.ts: Adjust import of TokenDao. Import
TokenData.
This makes minimal changes to TokenedService, even though there is obvious
refactoring that can be done to reduce duplication, because the class is
currently untested.
* src/server/service/TokenedService.js (_getQuoteToken, generateToken,
killToken, acceptToken, completeToken): Expect promise.
* src/server/token/TokenDao.ts (updateToken, getToken): Remove callback
param, return Promise.
* test/server/token/TokenDaoTest.ts: Use promises.
This tests the existing state of TokenDao before additional modifications
are made. This commit also further refines the types introduced in a
previous commit.
This is also the first test written in Typescript.
* package.json.in (devDependencies): Add node, chai, and mocha types.
* src/server/token/TokenDao.ts (updateToken): `data` accepts null (as it
should). Do not conditionall add data to object (it doesn't matter for
later retrieval). Note nondeterminism with date. More concise syntax
for object fields.
* src/server/token/TokenQueryResult.ts: Make all fields readonly.
(TokenStatus): Date is no longer optional (see above mention).
* src/types/mongodb.d.ts: Remove generics (erroneously added).
(Collection)[update]: Remove 3-argument declaration (see comment).
* test/server/token/TokenDaoTest.ts: New test case.
The nature of this bug was two-fold:
1.) A new Date was being instantiated with seconds,
but the constructor expects milliseconds.
2.) The expiration period was not cast to a number,
causing an expression to concatenate strings instead of
adding numeric values; this greatly increased the actual
expiration date.
Prior to this change, a single generic message was always shown simply
stating that the quote had been locked. These changes now allow for
different messages to be displayed in different circumstances.
It looks like the metabucket is never initialized, so saving the quote is
right now the only thing that sets default values. That should be fixed in
the future.
This also begins adding tests for the terrible MongoServerDao, that could
use some refactoring.
* src/server/db/MongoServerDao.js: Make `meta' mutable. I had forgotten to
remove the code that mutates it (since our version of v8 right now does
not blow up for const assignments), so this is all that's needed.
* test/server/db/MongoServerDaoTest.js: New file to test this situation.
Default data was converted to an empty array if the data evaluated to
false. We only want to convert it if it is undefined so values that are
false remain false.
The `*_label' fields were not being properly set because they were being
considered just as every other expanded field, which is subject to other
considerations to ensure that we do not overwrite user data. Label fields,
on the other hand, _must_ always be set whenever the value changes, and are
_not_ modifiable by the user.
This codifies that `_label' assumption that I would like removed in the
future, but time does not permit that sort of refactoring right
now. Ideally, labels would be treated generically like any other expanded
field and have an attribute set of them that would change their expansion
behavior.
* src/client/dapi/DataApiMediator.js (_updateFieldData): Pass label field id
to `_populateWithMap'.
(_populateWithMap): Use it to always populate the label field when the key
matches, ignoring the other expansion criteria that would inhibit it.
* test/client/dapi/DataApiMediatorTest.js: Update test accordingly.
* src/dapi/DataApiManager.js (triggerFieldUpdate): Provide id to
`_genUiFieldData'.
(_genUiFieldData)[label_id]: New field. Return it as part of the return
object's `label_id' field.
DEV-4077
* src/program/ProgramInit.js (_isKnownType): Account for ancient qtype
representation (as a string).
* src/server/quote/ProgramQuoteCleaner.js (_isKnownType): Likewise.
* test/program/ProgramInitTest.js: New test case for this situation.
* test/server/quote/ProgramQuoteCleanerTest.js: Modify existing test case
for this situation.
These denote fields that are generated but do not actually have any data
associated with them. For example, select options with predicates have a
field generated so that they contribute to the group field count (so that
the group will automatically show/hide appropriately), but those should
never have values associated with them in the bucket.
This was manifesting as a nasty bug: The bucket contained a key for
generated options. When the quote is loaded, the client "empties" the
bucket. In doing so, it set the option value to the empty string, which had
the effect of rendering the dropdown useless---every value was the empty
string!
* src/program/ProgramInit.js (_isKnownType): New method.
(init): Use it and ignore fields with unknown types.
* src/server/Server.js: Add note that we shouldn't have this logic
duplicated between ProgramInit and ProgramQuoteCleaner.
* src/server/quote/ProgramQuoteCleaner.js (_fixGroup): Ignore fields with
unknown types.
(_isKnownType): New method.
* test/program/ProgramInitTest.js: Update existing tests. Add new.
* test/server/quote/ProgramQuoteCleanerTest.js: Test this case.
* src/server/quote/ProgramQuoteCleaner.js (clean): Add docblock.
Replace previous linked group cleaning with call to `_fixGroup'.
(_fixGroup): New method. Similar logic to previous linked group cleaning,
except that fields are never truncated.
(_fixLinkedGroups, _getLinkedIndexLength): Remove methods.
(_getGroupLength): New method determining group size from leader length,
which also accounts for linked groups.
* test/server/quote/ProgramQuoteCleanerTest.js: New test case.
Allowing the stack to clear ensures that (in practice) DelayedStagingBucket
is given a chance to do necessary processing before data are requested from
it by bucket hooks as a result of _this_ invocation, which in turn
results (in some cases) in infinite recursion.
* src/client/dapi/DataApiMediator.js (_updateFieldData): Allow stack to
clear before invoking `quote.setData'.
* test/client/dapi/DataApiMediatorTest.js: Test respectively.
DEV-3257
* src/client/dapi/DataApiMediator.js (_populateWithMap): Update
docblock. Ignore field during expansion if it would overwrite an
existing value.
* test/client/dapi/DataApiMediatorTest.js: Update tests data to include
values for all bucket fields, not just `name'. Add test for new
condition.
DEV-3257
[*] You should not use this commit directly since this may wipe out data in
fields the user has changed. See future commit where this situation is
properly handled.
* src/client/Client (_init): Provide dapimap to DataApiMediator instance.
* src/client/dapi/DataApiMediator.js
(_dapi_map): New field.
(constructor): Accept dapimap. BC break (which is okay, since this is
still part of a topic branch). Assing to _dapi_map. Update docblock.
(monitor): Bind `dapi_manager' to first argument of handlers.
(_updateFieldData): Accept `dapi_manager' as first argument. Use
`_populateWithMap' to generate additional update data.
(_populateWithMap): New method.
(_clearFieldFailures): Accept `dapi_manager' as first argument.
* src/dapi/DataApiManager.js: Update copyright year.
(getDataExpansion): Return empty object (consistent with interface) rather
than `undefined' when field value is undefined. Use
{Error=>MissingDataError} when field data are missing. Throw instead of
emit. Fix missing comma in var declarations.
* src/dapi/MissingDataError.js: New class.
* test/client/dapi/DataApiMediatorTest.js: Update test data to test field
expansion. New test against ignoring field expansion when data are not
available. Update Sut constructors of other tests for new dapimap
parameter.
DEV-3257
This extracts existing code from Client and adds tests. The glue code is
far from ideal and highlights the amount of work needed to decouple Client
from so many parts of the system.
* src/client/Client.js (_dapiManager): New field.
(_init): Use DataApiMediator.
(_createProgram): Assign `_dapiManager' (this is not at all
ideal). Remove hooks from it: fieldLoading, updateFieldData,
clearFieldData.
* src/client/ClientDependencyFactory.js (createDataApiMediator): New alias
to DataApiMediator constructor.
* src/client/dapi/DataApiMediator.js: New class.
* test/client/dapi/DataApiMediatorTest.js: New test case.
DEV-3257
This does not go all the way, but helps improve the readability of the
algorithm a little bit and modernizes the code.
* src/field/FieldClassMatcher.js (constructor): Renamed from
`__constructor'.
(__constructor): Remove method.
(match): Extract most code into `#_reduceFieldMatches'.
(_reduceFieldMatches): New method, simplifying the algorithm slightly.
(_reduceMatch): Simplify.
* test/field/FieldClassMatcherTest.js: Update accordingly.
Mike Gerwitz