I want to see if a theme element exists with specified name in the following xml file.
input.xml
<data>
<artifacts>
<document id="efqw4eads">
<name>composite</name>
</document>
<theme id="1">
<name>Terrace</name>
</theme>
<theme id="2">
<name>Garage</name>
</theme>
<theme id="3">
<name>Reception</name>
</theme>
<theme id="4">
<name>Grade II</name>
</theme>
</artifacts>
</data>
I have the following code. return true statement of the method is never executed. answer always contains a null value.
public boolean themeExists(String name, Data data){
String expression = "artifacts/theme[name='"+name+"']/name/text()";
String answer = jaxbContext.getValueByXPath(data, expression, null, String.class);
if(answer == null || answer.equals("")){
return false;
}
return true;
}
This use case isn't currently supported by EclipseLink JAXB (MOXy). I have opened the following enhancement you can use to track our progress:
http://bugs.eclipse.org/413823
There is no <artifacts/> element you're look for in the first axis step. Your XPath expression should be something like
String expression = "data/theme[name='"+name+"']/name/text()";
Related
I have created my custom Index in Sitecore with FlatDataCrawler.
The Index has been created and I can see my documents in Solr.
The problem is, whenever I'm trying to get those documents in my code I see exception like this:
Object reference not set to an instance of an object.
And in sitecore log file I see this WARN:
ManagedPoolThread #4 14:29:09 INFO Solr Query - ?q=*:*&rows=1000000&fq=_indexname:(products_index)&wt=xml
ManagedPoolThread #4 14:29:09 WARN Could not map index document (field: _uniqueid; Value: fae308d2-233f-4f7f-a4fd-9d880e42ff13) - Object reference not set to an instance of an object.
This is my Index config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration xmlns:patch="http://www.sitecore.net/xmlconfig/" xmlns:role="http://www.sitecore.net/xmlconfig/role/" xmlns:search="http://www.sitecore.net/xmlconfig/search/">
<sitecore role:require="Standalone or ContentManagement" search:require="solr">
<contentSearch>
<configuration type="Sitecore.ContentSearch.ContentSearchConfiguration, Sitecore.ContentSearch">
<indexes hint="list:AddIndex">
<index id="products_index" type="Sitecore.ContentSearch.SolrProvider.SolrSearchIndex, Sitecore.ContentSearch.SolrProvider">
<param desc="name">$(id)</param>
<param desc="core">$(id)</param>
<param desc="propertyStore" ref="contentSearch/indexConfigurations/databasePropertyStore" param1="$(id)" />
<configuration ref="contentSearch/indexConfigurations/defaultSolrIndexConfiguration">
<documentOptions type="Sitecore.ContentSearch.SolrProvider.SolrDocumentBuilderOptions, Sitecore.ContentSearch.SolrProvider">
<indexAllFields>false</indexAllFields>
</documentOptions>
</configuration>
<strategies hint="list:AddStrategy">
<strategy ref="contentSearch/indexConfigurations/indexUpdateStrategies/manual" />
</strategies>
<locations hint="list:AddCrawler">
<crawler type="Feature.ProductsIndex.Crawlers.CustomOrderCrawler, Feature.ProductsIndex" />
</locations>
</index>
</indexes>
</configuration>
</contentSearch>
</sitecore>
</configuration>
This is my code:
using (var searchContext = ContentSearchManager.GetIndex("products_index").CreateSearchContext())
{
int count = searchContext.GetQueryable<SearchResultItem>().Count(); //This works
var results = searchContext.GetQueryable<SearchResultItem>().ToList(); //Exception here!
}
See in your schema file , if you have
<uniqueKey>_uniqueid</uniqueKey>
<field name="_uniqueid" type="string" indexed="true" required="true" stored="true"/>
if not follow this link populate solr schema , and restart the solr service and then try to rebuild the index
I'm new to nokogiri and am having trouble using xpath to access nested elements of an xml document with a specific xmlns.
Given the following code
#!/opt/chef/embedded/bin/ruby
require 'nokogiri'
doc = Nokogiri::XML.parse <<-XML
<?xml version="1.0" encoding="UTF-8" ?>
<domain xmlns="urn:jboss:domain:1.8">
<profiles>
<profile name="full">
<subsystem xmlns="urn:jboss:domain:datasources:1.2">
<datasources>
<datasource jndi-name="java:/Paulstestjndi" pool-name="pauls_ds" enabled="false">
<connection-url>jdbc:oracle:thin:#testhost1:80001paulstestinstance|jdbc:oracle:thin:#testhost2:80001paulstestinstance</connection-url>
</datasource>
</datasources>
</subsystem>
</profile>
</profiles>
</domain>
XML
datasources = doc.xpath('//datasources:datasource', 'datasources' => "urn:jboss:domain:datasources:1.2")
datasources.each do |datasource|
conn_url = datasource.xpath("connection-url")
puts "CLASS = #{conn_url.class}"
puts "No of Entries = #{conn_url.length}"
end
I am able to retrieve datasources using xpath but am unable to use xpath to access 'connection-url' for each datasource.
I have tried several xpath calls to achieve this the following are examples
conn_url = datasource.xpath("connection-url")
conn_url = datasource.xpath("//connection-url")
conn_url = datasource.xpath("//datasources:datasource/connection-url", 'datasources'=>"urn:jboss:domain:datasources:1.2")
But each seems to return an empty set of results.
What am I missing?
It’s a namespacing issue:
datasource.xpath(
'subsystem:connection-url',
'subsystem' => 'urn:jboss:domain:datasources:1.2')
#⇒ [#<... name="connection-url" namespace=...
I have inherited an application that parses xml using dom4j and xPath:
The xml being parsed is similar to the following:
<cache>
<content>
<transaction>
<page>
<widget name="PAGE_ID">WRK_REGISTRATION</widget>
<widget name="TRANS_DETAIL_ID">77145</widget>
<widget name="GRD_ERRORS" />
</page>
<page>
<widget name="PAGE_ID">WRK_REGISTRATION</widget>
<widget name="TRANS_DETAIL_ID">77147</widget>
<widget name="GRD_ERRORS" />
</page>
<page>
<widget name="PAGE_ID">WRK_PROCESSING</widget>
<widget name="TRANS_DETAIL_ID">77152</widget>
<widget name="GRD_ERRORS" />
</page>
</transaction>
</content>
</cache>
Individual Nodes are being searched using the following:
String xPathToGridErrorNode = "//cache/content/transaction/page/widget[#name='PAGE_ID'][text()='WRK_DNA_REGISTRATION']/../widget[#name='TRANS_DETAIL_ID'][text()='77147']/../widget[#name='GRD_ERRORS_TEMP']";
org.dom4j.Element root = null;
SAXReader reader = new SAXReader();
Document document = reader.read(new BufferedInputStream(new ByteArrayInputStream(xmlToParse.getBytes())));
root = document.getRootElement();
Node gridNode = root.selectSingleNode(xPathToGridErrorNode);
where xmlToParse is a String of xml similar to the excerpt provided above.
The code is trying to obtain the GRD_ERROR node for the page with the PAGE_ID and TRANS_DETAIL_ID provided in the xPath.
I am seeing an intermittent (~1-2%) failure (returned node is null) of this selectSingleNode request even though the requested node is in the xml being searched.
I know there are some gotchas associated with using text()= in xPath and was wondering if there was a better way to format the xPath string for this type of search.
From your snippets, there is a problem regarding GRD_ERRORS vs. GRD_ERRORS_TMP and WRK_REGISTRATION vs. WRK_DNA_REGISTRATION.
Ignoring that, I would suggest to rewrite
//cache/content/transaction/page
/widget[#name='PAGE_ID'][text()='WRK_DNA_REGISTRATION']
/../widget[#name='TRANS_DETAIL_ID'][text()='77147']
/../widget[#name='GRD_ERRORS_TEMP']
as
//cache/content/transaction/page
[widget[#name='PAGE_ID'][text()='WRK_REGISTRATION']]
[widget[#name='TRANS_DETAIL_ID'][text()='77147']]
/widget[#name='GRD_ERRORS']
Just because it makes the code, in my eyes, easier to read, and expresses what you seem to mean more clearly: “the page element that has children with these conditions, and then take the widget with this #name.” Or, if that is closer to how you think about it,
//cache/content/transaction/page/widget[#name='GRD_ERRORS']
[preceding-sibling::widget[#name='PAGE_ID'][text()='WRK_REGISTRATION']]
[preceding-sibling::widget[#name='TRANS_DETAIL_ID'][text()='77147']]
YQL Console Link
Query:
select * from html where url='http://www.cbs.com/shows/big_brother/video/' and xpath='//div[#id="cbs-video-metadata-wrapper"]/div[#class="cbs-video-share"]/a'
Returns:
<?xml version="1.0" encoding="UTF-8"?>
<query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng"
yahoo:count="1" yahoo:created="2011-07-09T23:14:02Z" yahoo:lang="en-US">
<diagnostics>
<publiclyCallable>true</publiclyCallable>
<url execution-time="146" proxy="DEFAULT"><![CDATA[http://www.cbs.com/shows/big_brother/video/]]></url>
<user-time>163</user-time>
<service-time>146</service-time>
<build-version>19262</build-version>
</diagnostics>
<results>
<a class="twitter-share-button" href="http://twitter.com/share"/>
</results>
</query>
Should Return Something Similar To:
<results>
</results>
If I back out the query one level, it totally strips out the element, which I could also use to get the data I need.
We have a new html parser that recognizes custom attributes now.
Add compat="html5" to trigger the new parser.
e.g.:
select * from html where url = "http://mydomain.com" and compat="html5"
I got the response like the following:
<response>
<status code='200' server_time='xxx' />
<tests>
<test id='1' name='a!' status='Started' />
<test id='2' name='bb!' status='New' />
<test id='3' name='ccc!' status='New' />
<test id='4' name='dddd!' status='New' />
</tests>
</response>
I have already added a Xpath extractor into the sampler:
Reference name: mytest
XPath Query: //test[#id='1']
But the return variable (mytest) is wrong.
OUT.println(mytest) --> void
I'm a newbie with JMeter. What can I do to solve this?
I have already added a Xpath extractor
into the sampler:
Reference name: mytest XPath Query:
//test[#id='1']
But the return variable (mytest) is
wrong.
OUT.println(mytest) --> void
Obviously the println() function prints the string value of the test element, and in the provided XML document test elements do not have any content and their string value is the empty string.
You want:
/*/*/test[#id=1]/#name
and
/*/*/test[#id=1]/#status
The former selects all name attributes of all test grandchildren of the top element of the document, that have an id attribute with value 1.
The latter selects all status attributes of all test grandchildren of the top element of the document, that have an id attribute with value 1.
It could be because you have no text content. Try setting "Return entire XPath fragment instead of text content?"