XPath does not selects the node that should - xpath

I want to get GBP over USD exchange rate value from XML.
Code is like this
System.Xml.XPath.XPathDocument path = new System.Xml.XPath.XPathDocument(url);
System.Xml.XPath.XPathNavigator nav = path.CreateNavigator();
System.Xml.XPath.XPathNodeIterator itr = nav.Select("/Envelope/Cube/Cube");
Here is the XML
<?xml version="1.0" encoding="windows-1252"?>
<Envelope xmlns="http://www.gesmes.org/xml/2002-08-01">
<Cube xmlns="http://www.bankofengland.co.uk/boeapps/iadb/agg_series" SCODE="XUDLUSS" DESC="Spot exchange rate, US $ into Sterling" COUNTRY="" CONCAT="Not seasonally adjusted # Exchange rates # US dollar # Exchange rate (spot) - US dollar into sterling # US dollar ">
<Cube TIME="2013-07-22" OBS_VALUE="1.537" OBS_CONF="N" LAST_UPDATED="2013-07-23 09:30:00">
</Cube>
<Cube TIME="2013-07-23" OBS_VALUE="1.5367" OBS_CONF="N" LAST_UPDATED="2013-07-24 09:30:00">
</Cube>
</Cube>
</Envelope>

Most likely you need to add the namespaces with an prefix and use this prefixes with your xpath.
Have a look to: XPathNavigator.Select
And try something like this (not tested).
System.Xml.XPath.XPathDocument path = new System.Xml.XPath.XPathDocument(url);
System.Xml.XPath.XPathNavigator nav = path.CreateNavigator();
XmlNamespaceManager manager = new XmlNamespaceManager(nav.NameTable);
manager.AddNamespace("e", "http://www.gesmes.org/xml/2002-08-01"");
manager.AddNamespace("c", "http://www.bankofengland.co.uk/boeapps/iadb/agg_series");
System.Xml.XPath.XPathNodeIterator itr = nav.Select("/e:Envelope/c:Cube/c:Cube", manager );

Related

How to combine two XML files with Nokogiri

I am trying to combine two separate, but related, files with Nokogiri. I want to combine the "product" and "product pricing" if "ItemNumber" is the same.
I loaded the documents, but I have no idea how to combine the two.
Product File:
<Products>
<Product>
<Name>36-In. Homeowner Bent Single-Bit Axe Handle</Name>
<ProductTypeId>0</ProductTypeId>
<Description>This single bit curved grip axe handle is made for 3 to 5 pound axes. A good quality replacement handle made of American hickory with a natural wax finish. Hardwood handles do not conduct electricity and American Hickory is known for its strength, elasticity and ability to absorb shock. These handles provide exceptional value and economy for homeowners and other occasional use applications. Each Link handle comes with the required wedges, rivets, or epoxy needed for proper application of the tool head.</Description>
<ActiveFlag>Y</ActiveFlag>
<ImageFile>100024.jpg</ImageFile>
<ItemNumber>100024</ItemNumber>
<ProductVariants>
<ProductVariant>
<Sku>100024</Sku>
<ColorName></ColorName>
<SizeName></SizeName>
<SequenceNo>0</SequenceNo>
<BackOrderableFlag>N</BackOrderableFlag>
<InventoryLevel>0</InventoryLevel>
<ColorCode></ColorCode>
<SizeCode></SizeCode>
<TaxableFlag>Y</TaxableFlag>
<VariantPromoGroupCode></VariantPromoGroupCode>
<PricingGroupCode></PricingGroupCode>
<StartDate xsi:nil="true"></StartDate>
<EndDate xsi:nil="true"></EndDate>
<ActiveFlag>Y</ActiveFlag>
</ProductVariant>
</ProductVariants>
</Product>
</Products>
Product Pricing Fields:
<ProductPricing>
<ItemNumber>100024</ItemNumber>
<AcquisitionCost>8.52</AcquisitionCost>
<MemberCost>10.7</MemberCost>
<Price>14.99</Price>
<SalePrice xsi:nil="true"></SalePrice>
<SaleCode>0</SaleCode>
</ProductPricing>
I am looking to generate a file like this:
<Products>
<Product>
<Name>36-In. Homeowner Bent Single-Bit Axe Handle</Name>
<ProductTypeId>0</ProductTypeId>
<Description>This single bit curved grip axe handle is made for 3 to 5 pound axes. A good quality replacement handle made of American hickory with a natural wax finish. Hardwood handles do not conduct electricity and American Hickory is known for its strength, elasticity and ability to absorb shock. These handles provide exceptional value and economy for homeowners and other occasional use applications. Each Link handle comes with the required wedges, rivets, or epoxy needed for proper application of the tool head.</Description>
<ActiveFlag>Y</ActiveFlag>
<ImageFile>100024.jpg</ImageFile>
<ItemNumber>100024</ItemNumber>
<ProductVariants>
<ProductVariant>
<Sku>100024</Sku>
<ColorName></ColorName>
<SizeName></SizeName>
<SequenceNo>0</SequenceNo>
<BackOrderableFlag>N</BackOrderableFlag>
<InventoryLevel>0</InventoryLevel>
<ColorCode></ColorCode>
<SizeCode></SizeCode>
<TaxableFlag>Y</TaxableFlag>
<VariantPromoGroupCode></VariantPromoGroupCode>
<PricingGroupCode></PricingGroupCode>
<StartDate xsi:nil="true"></StartDate>
<EndDate xsi:nil="true"></EndDate>
<ActiveFlag>Y</ActiveFlag>
</ProductVariant>
</ProductVariants>
</Product>
<ProductPricing>
<ItemNumber>100024</ItemNumber>
<AcquisitionCost>8.52</AcquisitionCost>
<MemberCost>10.7</MemberCost>
<Price>14.99</Price>
<SalePrice xsi:nil="true"></SalePrice>
<SaleCode>0</SaleCode>
</ProductPricing>
</Products>
Here is the code I have so far:
require 'csv'
require 'nokogiri'
xml = File.read('lateApril-product-pricing.xml')
xml2 = File.read('lateApril-master-date')
doc = Nokogiri::XML(xml)
doc2 = Nokogiri::XML(xml2)
pricing_data = []
item_number = []
doc.xpath('//ProductsPricing/ProductPricing').each do |file|
itemNumber = file.xpath('./ItemNumber').first.text
variant_Price = file.xpath('./Price').first.text
pricing_data << [ itemNumber, variant_Price ]
item_number << [ itemNumber ]
end
puts item_number ## This prints all the item number but i have no idea how to loop through them and combine them with Product XML
doc2.xpath('//Products/Product').each do |file|
itemNumber = file.xpath('./ItemNumber').first.text #not sure how to write the conditions here since i don't have pricing fields available in this method
end
Try this on:
require 'nokogiri'
doc1 = Nokogiri::XML(<<EOT)
<Products>
<Product>
<Name>36-In. Homeowner Bent Single-Bit Axe Handle</Name>
</Product>
</Products>
EOT
doc2 = Nokogiri::XML(<<EOT)
<ProductPricing>
<ItemNumber>100024</ItemNumber>
</ProductPricing>
EOT
doc1.at('Product').add_next_sibling(doc2.at('ProductPricing'))
Which results in:
puts doc1.to_xml
# >> <?xml version="1.0"?>
# >> <Products>
# >> <Product>
# >> <Name>36-In. Homeowner Bent Single-Bit Axe Handle</Name>
# >> </Product><ProductPricing>
# >> <ItemNumber>100024</ItemNumber>
# >> </ProductPricing>
# >> </Products>
Please, when you ask, strip the example input and expected resulting output to the absolute, bare, minimum. Anything beyond that wastes space, eye-time and brain CPU.
This is untested code, but is where I'd start if I was going to merge two files containing multiple <ItemNumber> nodes:
require 'nokogiri'
doc1 = Nokogiri::XML(<<EOT)
<Products>
<Product>
<Name>36-In. Homeowner Bent Single-Bit Axe Handle</Name>
<ItemNumber>100024</ItemNumber>
</Product>
</Products>
EOT
doc2 = Nokogiri::XML(<<EOT)
<ProductPricing>
<ItemNumber>100024</ItemNumber>
</ProductPricing>
EOT
# build a hash containing the item numbers in doc1 for each product
doc1_products_by_item_numbers = doc1.search('Product').map { |product|
item_number = product.at('ItemNumber').value
[
item_number,
product
]
}.to_hash
# build a hash containing the item numbers in doc2 for each product pricing
doc2_products_by_item_numbers = doc2.search('ProductPricing').map { |pricing|
item_number = pricing.at('ItemNumber').value
[
item_number,
pricing
]
}.to_hash
# append doc2 entries to doc1 after each product based on item numbers
doc1_products_by_item_numbers.keys.each { |k|
doc1_products_by_item_numbers[k].add_next_sibling(doc2_products_by_item_numbers[k])
}

trying to parse specific data using xpath

I have a small xml file that I'm trying to grab the away_team first and then the home_team second.
/game/team/statistics/#goals gives me the data I want but I need to reverse the order. So I'm trying to understand how to get the away_team goals first, followed by the home_team.
Below is the file
<game id="f24275a9-4f30-4a81-abdf-d16a9aeda087" status="closed" coverage="full" home_team="4416d559-0f24-11e2-8525-18a905767e44" away_team="44167db4-0f24-11e2-8525-18a905767e44" scheduled="2013-10-10T23:00:00+00:00" attendance="18210" start_time="2013-10-10T23:08:00+00:00" end_time="2013-10-11T01:32:00+00:00" clock="00:00" period="3" xmlns="http://feed.elasticstats.com/schema/hockey/game-v2.0.xsd">
<venue id="bd7b42fa-19bb-4b91-8615-214ccc3ff987" name="First Niagara Center" capacity="18690" address="One Seymour H. Knox III Plaza" city="Buffalo" state="NY" zip="14203" country="USA"/>
<team name="Sabres" market="Buffalo" id="4416d559-0f24-11e2-8525-18a905767e44" points="1">
<scoring>
<period number="1" sequence="1" points="1"/>
<period number="2" sequence="2" points="0"/>
<period number="3" sequence="3" points="0"/>
</scoring>
<statistics goals="1" assists="2" penalties="7" penalty_minutes="23" team_penalties="0" team_penalty_minutes="0" shots="27" blocked_att="14" missed_shots="8" hits="25" giveaways="5" takeaways="10" blocked_shots="7" faceoffs_won="22" faceoffs_lost="28" powerplays="1" faceoffs="50" faceoff_win_pct="44.0" shooting_pct="3.7" points="3">
<powerplay faceoffs_won="2" faceoffs_lost="0" shots="0" goals="0" missed_shots="1" assists="0" faceoff_win_pct="100.0" faceoffs="2"/>
<shorthanded faceoffs_won="3" faceoffs_lost="3" shots="1" goals="0" missed_shots="0" assists="0" faceoffs="6" faceoff_win_pct="50.0"/>
<evenstrength faceoff_win_pct="40.5" missed_shots="7" goals="1" faceoffs_won="17" shots="26" faceoffs="42" faceoffs_lost="25" assists="2"/>
<penalty shots="0" goals="0" missed_shots="0"/>
</statistics>
<shootout shots="0" missed_shots="0" goals="0" shots_against="0" goals_against="0" saves="0" saves_pct="0"/>
<goaltending shots_against="33" goals_against="4" saves="29" saves_pct="0.879" total_shots_against="33" total_goals_against="4">
<powerplay shots_against="0" goals_against="0" saves="0" saves_pct="0"/>
<shorthanded shots_against="7" goals_against="0" saves="7" saves_pct="1.0"/>
<evenstrength goals_against="4" saves_pct="0.846" shots_against="26" saves="22"/>
<penalty shots_against="0" goals_against="0" saves="0" saves_pct="0"/>
<emptynet goals_against="0" shots_against="0">
<powerplay goals_against="0"/>
<shorthanded goals_against="0"/>
<evenstrength goals_against="0"/>
</emptynet>
</goaltending>
Here's an XPath 2.0 expression that should do what you asked, yielding a sequence of two elements:
(/game/team[#id = /game/#home_team]/statistics/#goals,
/game/team[#id = /game/#away_team]/statistics/#goals)
Credit to #Ian for sleuthing out the details of the question.
In XPath 1.0, you could concatenate string data from the two teams in whatever order you want:
concat(/game/team[#id = /game/#home_team]/statistics/#goals, ' ',
/game/team[#id = /game/#away_team]/statistics/#goals)
But as Ian said, you can't produce a nodeset with an order different from document order. (I don't think a nodeset has any intrinsic order at all... it's how it's processed that imposes an order.)
Update:
As Ian pointed out, your XML data is in a namespace, thanks to the default namespace declaration on <game>. Since you said that "/game/team/statistics/#goals gives me the data", I'm assuming that you've already taken care of this aspect of the problem, perhaps by declaring the default namespace in your XPath execution environment.

Can I insert my data-context in the text suggestions bar?

Suggestions bar: http://i.msdn.microsoft.com/dynimg/IC530993.png
I'd like to know if there's a way to put my data in this bar programmatically.
I think you can't add words to the Predictive Text bar in the Windows Phone.
What you can do is use the autocomplete feature:
http://developer.nokia.com/Community/Wiki/How_to_use_Auto_Complete_Box_in_Windows_Phone
And don't forget to add the scope of the keyboard
<TextBox>
<TextBox.InputScope>
<InputScope>
<InputScopeName NameValue="Text" />
</InputScope>
</TextBox.InputScope>
</TextBox>
There are multiple Input Scopes
<TextBox Name="myTextBox" InputScope="Text"/>
There are ways to enumerate this as this post points out
var inputScopes = new List<string>();
FieldInfo[] array = typeof(InputScopeNameValue).GetFields(
BindingFlags.Public | BindingFlags.Static);
foreach (FieldInfo fi in array)
{
inputScopes.Add(fi.Name);
}
this.DataContext = inputScopes;
AddressCity
AddressCountryName
AddressCountryShortName
AddressStateOrProvince
AddressStreet
AlphanumericFullWidth
AlphanumericHalfWidth
ApplicationEnd
Bopomofo
Chat
CurrencyAmount
CurrencyAmountAndSymbol
CurrencyChinese
Date
DateDay
DateDayName
DateMonth
DateMonthName
DateYear
Default
Digits
EmailNameOrAddress
EmailSmtpAddress
EmailUserName
EnumString
FileName
FullFilePath
Hanja
Hiragana
KatakanaFullWidth
KatakanaHalfWidth
LogOnName
Maps
NameOrPhoneNumber
Number
NumberFullWidth
OneChar
Password
PersonalFullName
PersonalGivenName
PersonalMiddleName
PersonalNamePrefix
PersonalNameSuffix
PersonalSurname
PhraseList
PostalAddress
PostalCode
Private
RegularExpression
Search
Srgs
TelephoneAreaCode
TelephoneCountryCode
TelephoneLocalNumber
TelephoneNumber
Text
Time
TimeHour
TimeMinorSec
Url
Xml
Yomi

Select node in youtube feed response using xpath in vb6

for each entry in this xml, i need to get the "title" and the first thumbnail image. that is the first image in the media:group
<?xml version='1.0' encoding='UTF-8'?>
<feed xmlns='http://www.w3.org/2005/Atom' xmlns:media='http://search.yahoo.com/mrss/'>
<entry>
<title>Progression! 9 more pounds to goo!</title>
<media:group>
<media:thumbnail url='http://i.ytimg.com/vi/7MTjYXt3rLQ/default.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/7MTjYXt3rLQ/mqdefault.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/7MTjYXt3rLQ/hqdefault.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/7MTjYXt3rLQ/1.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/7MTjYXt3rLQ/2.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/7MTjYXt3rLQ/3.jpg'/>
</media:group>
</entry>
<entry>
<title>Plank Variations Workout with Max Wettstein</title>
<media:group>
<media:thumbnail url='http://i.ytimg.com/vi/O1Nd8lZFGpc/default.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/O1Nd8lZFGpc/mqdefault.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/O1Nd8lZFGpc/hqdefault.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/O1Nd8lZFGpc/1.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/O1Nd8lZFGpc/2.jpg'/>
<media:thumbnail url='http://i.ytimg.com/vi/O1Nd8lZFGpc/3.jpg'/>
</media:group>
</entry>
</feed>
this is my code
Dim xmlDoc As MSXML2.DOMDocument30
Dim xmlEntryNode As MSXML2.IXMLDOMNode
Dim xmlEntryNodes As IXMLDOMNodeList
Dim xmlC1Nodes As IXMLDOMNodeList
Dim ns As String
Set xmlDoc = New DOMDocument30
ns = txtNS.Text
xmlDoc.setProperty "SelectionLanguage", "XPath"
xmlDoc.setProperty "SelectionNamespaces", ns
If xmlDoc.loadXML(txtXml.Text) = False Then
appendText "xml document load failed"
Exit Sub
End If
Set xmlEntryNodes = xmlDoc.documentElement.selectNodes(/x:feed/x:entry)
Dim i As Integer
For i = 0 To xmlEntryNodes.length - 1
Set xmlEntryNode = xmlEntryNodes(i)
appendText xmlEntryNode.Text
Set xmlC1Nodes = xmlDoc.selectNodes(//media:group/media:thumbnail[1]/#url)
If xmlC1Nodes.length > 0 Then
Dim j As Integer
For j = 0 To xmlC1Nodes.length - 1
appendText xmlC1Nodes(j).Text
Next
End If
Next
Exit Sub
and here is my output
Progression! 9 more pounds to goo!
http://i.ytimg.com/vi/7MTjYXt3rLQ/default.jpg
http://i.ytimg.com/vi/O1Nd8lZFGpc/default.jpg Plank Variations
Workout with Max Wettstein
http://i.ytimg.com/vi/7MTjYXt3rLQ/default.jpg
http://i.ytimg.com/vi/O1Nd8lZFGpc/default.jpg
can anyone pls help me adjust to make it return only one image for each entry
I'm not well-versed in VB6, but coming at this from an XPath point of view, I would select relative to the xmlEntryNode you've already got:
Set xmlC1Nodes = xmlEntryNode.selectNodes("media:group/media:thumbnail[1]/#url")
(I don't understand why your XPath expression isn't in quotes... But you said it produces output...)
Or if the selectNodes() method only applies to XML documents, then
Set xmlC1Nodes = xmlDoc.selectNodes(
"/*/x:entry[" + i + "]/media:group/media:thumbnail[1]/#url")
can anyone pls help me adjust to make it return only one image for each entry
Use something like this (Haven't used MSXML or VB since many years):
Set urlAttrib = xmlEntryNode.SelectSingleNode("media:group/media:thumbnail[1]/#url")
wantedText = urlAttrib.nodeValue

REXML parsing an XML in ruby

Folks,
I am using REXML for a sample XML file:
<Accounts title="This is the test title">
<Account name="frenchcustomer">
<username name = "frencu"/>
<password pw = "hello34"/>
<accountdn dn = "https://frenchcu.com/"/>
<exporttest name="basic">
<exportname name = "basicexport"/>
<exportterm term = "oldschool"/>
</exporttest>
</Account>
<Account name="britishcustomer">
<username name = "britishcu"/>
<password pw = "mellow34"/>
<accountdn dn = "https://britishcu.com/"/>
<exporttest name="existingsearch">
<exportname name = "largexpo"/>
<exportterm term = "greatschool"/>
</exporttest>
</Account>
</Accounts>
I am reading the XML like this:
#data = (REXML::Document.new file).root
#dataarr = ##testdata.elements.to_a("//Account")
Now I want to get the username of the frenchcustomer, so I tried this:
#dataarr[#name=fenchcustomer].elements["username"].attributes["name"]
this fails, I do not want to use the array index, for example
#dataarr[1].elements["username"].attributes["name"]
will work, but I don't want to do that, is there something that i m missing here. I want to use the array and get the username of the french user using the Account name.
Thanks a lot.
I recommend you to use XPath.
For the first match, you can use first method, for an array, just use match.
The code above returns the username for the Account "frenchcustomer" :
REXML::XPath.first(yourREXMLDocument, "//Account[#name='frenchcustomer']/username/#name").value
If you really want to use the array created with ##testdata.elements.to_a("//Account"), you could use find method :
french_cust_elt = the_array.find { |elt| elt.attributes['name'].eql?('frenchcustomer') }
french_username = french_cust_elt.elements["username"].attributes["name"]
puts #data.elements["//Account[#name='frenchcustomer']"]
.elements["username"]
.attributes["name"]
If you want to iterate over multiple identical names:
#data.elements.each("//Account[#name='frenchcustomer']") do |fc|
puts fc.elements["username"].attributes["name"]
end
I don't know what your ##testdata are, I tried with the following testcode:
require "rexml/document"
#data = (REXML::Document.new DATA).root
#dataarr = #data.elements.to_a("//Account")
# Works
p #dataarr[1].elements["username"].attributes["name"]
#Works not
#~ p #dataarr[#name='fenchcustomer'].elements["username"].attributes["name"]
##dataarr is an array
#dataarr.each{|acc|
next unless acc.attributes['name'] =='frenchcustomer'
p acc.elements["username"].attributes["name"]
}
##dataarr is an array
puts "===Array#each"
#dataarr.each{|acc|
next unless acc.attributes['name'] =='frenchcustomer'
p acc.elements["username"].attributes["name"]
}
puts "===XPATH"
#data.elements.to_a("//Account[#name='frenchcustomer']").each{|acc|
p acc.elements["username"].attributes["name"]
}
__END__
<Accounts title="This is the test title">
<Account name="frenchcustomer">
<username name = "frencu"/>
<password pw = "hello34"/>
<accountdn dn = "https://frenchcu.com/"/>
<exporttest name="basic">
<exportname name = "basicexport"/>
<exportterm term = "oldschool"/>
</exporttest>
</Account>
<Account name="britishcustomer">
<username name = "britishcu"/>
<password pw = "mellow34"/>
<accountdn dn = "https://britishcu.com/"/>
<exporttest name="existingsearch">
<exportname name = "largexpo"/>
<exportterm term = "greatschool"/>
</exporttest>
</Account>
</Accounts>
I'm not very familiar with rexml, so I expect there is a better solution. But perhaps aomebody can take my code to build a better solution.

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