https://hc.apache.org/httpcomponents-client-4.3.x/httpclient/apidocs/org/apache/http/client/utils/URLEncodedUtils.html#parse(java.net.URI,%20java.lang.String)
why not return Map< String, List< String > >
if it returns Map, user can easily query by key to get whatever they want.
otherwise user should iterator the whole list to find what they want.
Thanks
Because this is a list. If you read carefully the explanation, says:
Returns a list of NameValuePairs as built from the URI's query portion. For example, a URI of http://example.org/path/to/file?a=1&b=2&c=3 would return a list of three NameValuePairs, one for a=1, one for b=2, and one for c=3.
That means that you cannot use a list to acces by value, because these type of data structures aren't designed for that. They doesn't have any "key" to use.
In this website, Jon Skeet wrote a very clear answer about you cannot use a shortcut to acces a List<NameValuePair> value using a name or a key or for similar structures.
Here you can check the post: Get ArrayList<NameValuePair> value by name
Inside of the same post, you'll see different options to solve your problem. (Or could guide to you to find the solution)
Related
I have a use case where I want to create a co-occurrence matrix. Essentially it is going to be something like Map<String, Map<String, Long>>. I wish to use Chronicle-Map for this task.
I checked Multimaps in ChronicleMap and https://github.com/OpenHFT/Chronicle-Map/issues/100. However, I am unable to follow the discussion to make a suitable change.
It would be also okay to have it like a multi-key like Map<String, String, Long> . I looked up the graph example of add and remove edge (in chronicle-map tutorial) which was again too detailed and complicated for me to adapt to my setting.
The way this will be used is to query:
Getting the long value for a very specific combination if key1 and key2.
For a specific key1 return all the key2 along with their respective long value.
Can someone please advise and provide a simple working example.
You need to create a MapMarshaller based on the source of SetMarshaller (yes, it's going to be even more complicated). Or use a Pair<String, String> as a key.
I have some ExtJs component.
I set itemId for it, but id is autogenerated.
Now Ext.getCmp('autogenerated-id') returns my component.
But Ext.ComponentQuery.query('#autogenerated-id') returns an empty array.
But:
Ext.ComponentQuery.query('[id=assets-information-form-1918]') again returns my component. :)
I use ExtJs 6.5.3 classic.
It seems like itemId config property hides autogenerated id from Ext.ComponentQuery, so they become mutually exclusive.
I don't need other means for search or advice to set id for the component, to write letter to Sencha support or to write post on their forum.
I need:
Means to force my Ext.ComponentQuery.query('#autogenerated-id') to
find the Component for which getId() returns 'autogenerated-id'.
If it is not possible by design, I need a link to some documentation
describing this behavior, a link to some bug report, or a filename and line number in ExtJs sources + a little snippet copy/paste from there.
From the documentation
Summary Provides searching of Components within Ext.ComponentManager
(globally) or a specific Ext.container.Container on the document with
a similar syntax to a CSS selector. Returns Array of matching
Components, or empty Array.
Ext.ComonpentQuery.query('#itemId') returns and array. Your cold above is using the auto-generated id of the component. The # indicates to query based on the component itemId and not the component id.
Try
Ext.ComponentQuery.query('assets-information-form-1918');
which will return an array, as noted in the documentation.
Ext.getCmp()
This is shorthand reference to Ext.ComponentManager#get. Looks up an
existing Ext.Component by id
Therefore it returns the component object.
Ext.ComponentQuery.query('#itemId')[0] would return the first object in the array.
Ext.ComponentQuery is the Sencha preferred method because it is more powerful when used as it does return an array so you an also query items by xtype and other attributes.
I was working through some code, and noticed:
return new Uri(host: server, path: apiPath, query: query, queryParameters: queryParams);
This code is executed regularly throughout the application, and the only difference was queryParams. So i printed it out:
{Id:[1234], enabled:false}
shows it is a key:value set of: Id:List, enabled:boolean.
The stack trace i get is:
which shows the map and then the trace. #6 points to the above line.
It is looking at false... something with iterating false is what breaks this.
When dealing with the URI and query parameters, it is looking for numerics, lists, and strings but not booleans. In order to resolve this and allow it to function correctly, you will need to do:
{"enabled": false.toString()}
// or
{"enabled": "false"}
and the uri class will set the query parameter accordingly.
The Uri class is located in core library for Dart. When we are using it, we are passing in the created Uri object into an action for a client class,
Client client = new BrowserClient();
which accepts the url as a part of the parameters.
While looking at the errors above though, the Uri class ultimately is unable to properly parse a false value to an accepted value.
When looking at the Code Docs for Uri as per the Dart languages: https://api.dartlang.org/dev/1.25.0-dev.7.0/dart-core/Uri/Uri.html
The query component is set through either query or queryParameters. When query is used, the provided string should be a valid URI query, but invalid characters, other than general delimiters, will be escaped if necessary. When queryParameters is used the query is built from the provided map. Each key and value in the map is percent-encoded and joined using equal and ampersand characters. A value in the map must be either a string, or an Iterable of strings, where the latter corresponds to multiple values for the same key.
Which makes sense to say all values must be String or an Iterable of Strings. The only thing which I cant figure out is that in Dartpad, true and false have toString functions, and yet you can also pass numerics in there.
The only conclusion is that while it accepts Strings and Iterables of Strings, it will also parse ints and other numerics because they will explicitly check for that type as it is common to see in URI.
One would think that the URI would understand booleans since those are also common place, but that is yet to be seen since I cant take an explicit look at the source code for dartlang. I did however manage to look at the source code for it and narrowed it down. writeComponent points to _Uri._uriEncode but when looking at that function, there is no code as much as just a definition.
HTH.
I've an array of objects containing title and salary which is used in typeahead directive.
I display department name and get entire object as value.
If none of the options match, I want user entered string to be converted to object still. Is there any way to update that?
This answer is pretty late, but I would just use ng-blur (to trap the end of the users input) along with a variable bound to typeahead-no-results. Then test if the variable is true in the method bound to ng-blur, and, if so, make an object out of the String supplied by the user and push it to your data source. Simple example found here.
In a Umbraco 7 solution, i have a Tags Content picker on all pages. Pages can with this, set tags on each page.
I then want to get alle pages, within the intire site, that has, lets say tag 111 (id, not name).
I have tried with:
var ids = Model.MacroParameters["tags"]; //the tags to show
CurrentPage.AncestorOrSelf(1).Descendants().Where(x => ids.Contains(x.tags.ToString()));
But that gives me the error:
Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type
Whats the correct way?
Solved it with;
Umbraco.Content(rootId).Descendants().Where("tags.Contains(#0)", ids);
You have a few options, depending on whether you prefer a dynamic or strongly typed view model.
Strongly Typed API
Umbraco.TypedContentAtRoot().Descendants().Where(x => x.tags.Contains(ids));
Dynamic API
Umbraco.ContentAtRoot().Descendants().Where("tags.Contains(#0)", ids);
Please note that the Contains statement may give you inconsistent results, as the tags property seems to be returning a comma separated list. In that case you can try splitting the string or install the Core Property Value Converters package and get the tags as IEnumerable<IPublishedContent>
Always try to avoid using Descendants, especially on the root node.
To get the tags for a property:
ApplicationContext.Current.Services.TagService.GetTagsForProperty(Model.Content.Id, "propertyname")
To find content with a specific tag:
ApplicationContext.Current.Services.TagService.GetTaggedContentByTag("tag")