How can I read data from an RSS feed using jsoup in kotlin? I have to create an ADT containing a list of items and general attributes such as title, link, description, pubDate and in the end I have to print the title and the link for every item.
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I am working on a project that integrates Imebra inside an android application. The application is supposed to extract all the data from a given DICOM file and put them into a .xml file. I need a little bit of help with it. For example, I don't know how to get all the VR tags that the given DICOM has, instead of getting them one by one using tag ids.
Thank you for your help.
Load the file using CodecFactory.load(filename).
Then you can use DataSet.getTags() to retrieve a list of tags stored into the DICOM structure.
The returned class TagsIds is a list containing all the TagId: scan each tag ID and retrieve it via DataSet.getString() (to retrieve the value as string) and DataSet.getDataType() to retrieve its VR.
When DataSet.getString() fails then you are dealing with a sequence (an embedded DICOM structure) which can be retrieved with DataSet.getSequenceItem().
You can use the static method DicomDictionary.getTagName() to get a description of a particular tag.
Is there a way to retain content on pages with block content when exporting and importing a theme.
All of the section/blocks/settings are kept in the settings_data.json file.
So when you transfer the theme they will be kept, but there are a few exceptions.
The following items will not be transferred if their selected items are not created:
product field
collection field
navigation field
blog field
article field
page field
link_list field
image_picker field
For all the fields ( except the image one ) if you create the targeted elements ( with the exact same handle ) you should be good to go.
I've searched the net and can not find simple HTMLAgilityPack example to extract 1 information from webpage. Most of the examples are in C# and code convertors don't work properly. Also developer's forum wasn't helpful.
Anyways, I am trying to extract “Consumer Defensive” string from this URL “http://quotes.morningstar.com/stock/c-company-profile?t=dltr” and this text “Dollar Tree Stores, Inc., operates discount variety stores in United States and Canada. Its stores offer merchandise at fixed price of $1.00 and C$1.25. The company operates stores under the names of Dollar Tree, Deal$, Dollar Tree Canada, etc. “ from same webpage.
Tried code on this link : https://stackoverflow.com/questions/13147749/html-agility-pack-with-vb-net-parsing but GetPageHTML is not declared.
This one is in C# HTML Agility pack - parsing tables
and so on.
Thanks.
The HTML returned from that URL is translated to XML with 2 root nodes, so it can not be transformed directly to an XML document.
For the values you wish to retrieve it may be easier to simply retrieve the HTML document and search for the start and end tags of the strings you wish to extract.
I've build a WEB TREC collection by downloading and parsing html pages by myself. Each TREC file contains a Category field. How can I build an index by using Lucene in order to perform a search in that collection? The idea is that this search, instead of returning documents as results, it could return categories.
Thank you!
This should be a relatively simple task since you have them in HTML format. You could index them in Lucene thus (Java based pseudo code)
foreach(file in htmlfiles)
{
Document d = new Document();
d.add(new Field("Category", GetCategoryName(...), Field.Store.YES, Field.Index.NOT_ANALYZED));
d.add(new Field("Contents", GetContents(...), Field.Store.YES, Field.Index.ANALYZED));
writer.addDocument(d);
writer.close();
}
GetCategoryName = should return the category string and GetContents(...) the contents of corresponding HTML file.It would be a good idea to parse out the HTML contents from the tags there are several ways of doing it. HtmlParser being one.
When you search, search the contents field and iterate through your search results to collect your Categories.
If you want to get a list of categories with counts attached ("facets") look into faceted search. Solr is a search server built using Lucene that provides this out of the box.
This question already has answers here:
How to get the Infobox data from Wikipedia?
(8 answers)
Closed 3 years ago.
Wikipedia articles may have Infobox templates. By the following call I can get the first section of an article which includes an Infobox.
http://en.wikipedia.org/w/api.php?action=parse&pageid=568801§ion=0&prop=wikitext
I want a query which will return only Infobox data. Is this possible?
You can do it with a URL call to the Wikipedia API like this:
http://en.wikipedia.org/w/api.php?action=query&prop=revisions&rvprop=content&format=xmlfm&titles=Scary%20Monsters%20and%20Nice%20Sprites&rvsection=0
Replace the titles= section with your page title, and format=xmlfm to format=json if you want the article in JSON format.
Instead of parsing infoboxes yourself, which is quite complicated, take a look at DBPedia, which has Wikipedia infoboxes extracted out as database objects.
Building on garry's answer, you can have Wikipedia parse the info box into HTML for you via the rvparse parameter like so:
http://en.wikipedia.org/w/api.php?action=query&prop=revisions&rvprop=content&format=json&titles=Scary%20Monsters%20and%20Nice%20Sprites&rvsection=0&rvparse
Note that neither method will return just the info box. But from the HTML content, you can extract (via, e.g., Beautiful Soup) the table with class infobox.
In Python, you do something like the following
resp = requests.get(url).json()
page_one = next(iter(resp['query']['pages'].values()))
revisions = page_one.get('revisions', [])
html = next(iter(revisions[0].values()))
# Now parse the HTML
If the page has a right side infobox, then use this URL to obtain it in txt form.
My example is using the element hydrogen. All you need to do is replace "Hydrogen" with your title.
https://en.wikipedia.org/w/index.php?action=raw&title=Template:Infobox%20hydrogen
If you are looking for JSON format use this URL, but it's not pretty.
https://en.wikipedia.org/w/api.php?action=parse&page=Template:Infobox%20hydrogen&format=json