I used JDOM1 before to parse xmls with xpath, and tired with the non-generic style, so I decide to try JDOM2, OK, everything works perfect for me ( the generic, XPathFactory, XPathExpression). then I try a xpath statement with contains function :
XPathExpression<Text> timeXpath = XPathFactory.instance().compile(
"./p[contains(.,'time:')]/text()", Filters.textOnly());
String time = timeXpath.evaluateFirst(div).getTextTrim();
then I got exeptions:
java.lang.IllegalStateException: Unable to evaluate expression. See cause
at org.jdom2.xpath.jaxen.JaxenCompiled.evaluateRawFirst(JaxenCompiled.java:200)
at org.jdom2.xpath.util.AbstractXPathCompiled.evaluateFirst(AbstractXPathCompiled.java:327)
at peace.org.tm.spider.star.DamaiStarSpider.syncStarTracks(DamaiStarSpider.java:123)
at peace.org.tm.spider.star.DamaiStarSpider.main(DamaiStarSpider.java:156)
Caused by: org.jaxen.UnresolvableException: Function :contains
at org.jaxen.SimpleFunctionContext.getFunction(SimpleFunctionContext.java:142)
at org.jaxen.ContextSupport.getFunction(ContextSupport.java:189)
at org.jaxen.Context.getFunction(Context.java:153)
at org.jaxen.expr.DefaultFunctionCallExpr.evaluate(DefaultFunctionCallExpr.java:183)
at org.jaxen.expr.DefaultPredicate.evaluate(DefaultPredicate.java:106)
at org.jaxen.expr.PredicateSet.evaluatePredicates(PredicateSet.java:188)
at org.jaxen.expr.DefaultLocationPath.evaluate(DefaultLocationPath.java:218)
then I tried:
XPathExpression<Text> timeXpath = XPathFactory.instance().compile(
"./p[fn:contains(.,'time:')]/text()", Filters.textOnly());
String time = timeXpath.evaluateFirst(div).getTextTrim();
xpath compile failed:
java.lang.IllegalArgumentException: Unable to compile './p[fn:contains(.,'time:')]/text()'. See Cause.
at org.jdom2.xpath.jaxen.JaxenCompiled.<init>(JaxenCompiled.java:152)
at org.jdom2.xpath.jaxen.JaxenXPathFactory.compile(JaxenXPathFactory.java:82)
at org.jdom2.xpath.XPathFactory.compile(XPathFactory.java:282)
at peace.org.tm.spider.star.DamaiStarSpider.syncStarTracks(DamaiStarSpider.java:91)
at peace.org.tm.spider.star.DamaiStarSpider.main(DamaiStarSpider.java:156)
Caused by: org.jaxen.XPathSyntaxException: Unexpected '('
at org.jaxen.BaseXPath.<init>(BaseXPath.java:136)
at org.jaxen.BaseXPath.<init>(BaseXPath.java:157)
at org.jdom2.xpath.jaxen.JaxenCompiled.<init>(JaxenCompiled.java:150)
... 4 more
I already google the stack trace for about 2 hours, nothing useful founded, I think maybe I made a very stupid mistake, is anyone can figure it out for me? thanks!
I can't reproduce the exceptions you are getting.... I am using JDOM 2.0.5 with Jaxen 1.1.6.
I have created the following:
public static void main(String[] args) {
Element root = new Element ("root");
Element p = new Element("p");
p.addContent(" Return this time: Boo! ");
root.addContent(p);
XPathExpression<Text> timeXpath = XPathFactory.instance().compile(
"./p[contains(.,'time:')]/text()", Filters.textOnly());
XPathDiagnostic<Text> xpd = timeXpath.diagnose(root, true);
System.out.println(xpd);
System.out.println(timeXpath.evaluateFirst(root).getTextTrim());
}
and it produces:
[XPathDiagnostic: './p[contains(.,'time:')]/text()' evaluated (first) against org.jdom2.Element produced raw=1 discarded=0 returned=1]
Return this time: Boo!
I believe you may have out-of-date Jaxen class libraries?
Related
I'm trying to use the S3InboundFileSynchronizer to synchronize an S3Bucket to a local directory. The bucket is organised with sub-directories such as:
bucket ->
2016 ->
08 ->
daily-report-20160801.csv
daily-report-20160802.csv
etc...
Using this configuration:
#Bean
public S3InboundFileSynchronizer s3InboundFileSynchronizer() {
S3InboundFileSynchronizer synchronizer = new S3InboundFileSynchronizer(amazonS3());
synchronizer.setDeleteRemoteFiles(true);
synchronizer.setPreserveTimestamp(true);
synchronizer.setRemoteDirectory("REDACTED");
synchronizer.setFilter(new S3RegexPatternFileListFilter(".*\\.csv$"));
Expression expression = PARSER.parseExpression("#this.substring(#this.lastIndexOf('/')+1)");
synchronizer.setLocalFilenameGeneratorExpression(expression);
return synchronizer;
}
I'm able to get as far as connecting to the bucket and listing its contents. When it comes time to read from the bucket the following exception is thrown:
org.springframework.messaging.MessagingException: Problem occurred while synchronizing remote to local directory; nested exception is
org.springframework.messaging.MessagingException: Failed to execute on session;
nested exception is
java.lang.IllegalStateException: 'path' must in pattern [BUCKET/KEY].
at org.springframework.integration.file.remote.synchronizer.AbstractInboundFileSynchronizer.synchronizeToLocalDirectory(AbstractInboundFileSynchronizer.java:266)
Reviewing the code it seems that it'd be impossible to ever synchronize an S3Bucket w/ sub-directories:
private String[] splitPathToBucketAndKey(String path) {
Assert.hasText(path, "'path' must not be empty String.");
String[] bucketKey = path.split("/");
Assert.state(bucketKey.length == 2, "'path' must in pattern [BUCKET/KEY].");
Assert.state(bucketKey[0].length() >= 3, "S3 bucket name must be at least 3 characters long.");
bucketKey[0] = resolveBucket(bucketKey[0]);
return bucketKey;
}
Is there some configuration I'm missing or is this a bug?
(I'm assuming it's a bug 'till I'm told otherwise so I've submitted a pull request with a proposed fix.)
Yes, it is a bug and submitted PullRequest is good for fix.
Only the solution as a workaround is like custom SessionFactory<S3ObjectSummary> which returns a custom S3Session extension with the provided fix in the PR.
The following code gives the error
Expected 'while' in 'do-while' loop
if let path = NSBundle.mainBundle().pathForResource("Chapters", ofType: "txt"){
do {
let stringFromFile = try String(contentsOfFile:path, encoding: NSUTF8StringEncoding)
var chapters: [String] = stringFromFile.componentsSeparatedByString("#")
chapters.removeAtIndex(0)
} catch {
print((error))
}
}
it was working fine before, but now it's giving me an error. Does anyone know why?
That code works for me as-is in the Playground with the appropriate Chapters.txt file in the Resources folder; XCode 7.1 Build 7B60. Did you try Shift-Command-K for a Clean Build?
Something does not seem right with your error message. With Swift 2.0, there are no more do-while loops. They have been replaced by repeat-while loops instead. As your code snippet shows, do has been repurposed for do-try-catch error handling.
I need to change the FreeMarker behavior about processing template&data in case some data are missing.
In missing case I need to let the template unchanged and continue in processing.
Example:
Template:
...
var1 = ${var1}
var2 = ${var2}
...
Data:
var1 = Hello
I need Result after processing:
...
var1 = Hello
var2 = ${var2}
...
My solution is:
class MyTemplateExceptionHandler implements TemplateExceptionHandler {
public void handleTemplateException(TemplateException te, Environment env, java.io.Writer out)
throws TemplateException {
try {
//2nd word on 2nd row is name of missing variable :(
String missingVariable = te.getMessageWithoutStackTop().split("\n")[1].split(" ")[1];
out.write("${" + missingVariable + "}");
} catch (IOException e) {
throw new TemplateException("Failed to print error message. Cause: " + e, env);
}
} }
and using:
...
Configuration cfg = new Configuration();
cfg.setTemplateExceptionHandler(new MyTemplateExceptionHandler());
...
My solution works, but I am not satisfied because of:
1) getting missing variable in handleTemplateException() is horrible. Does exist better way how to get a name of missing variable?
2) Even if I have my own TemplateExceptionHandler, FreeMarker writes enough information to output. Can I change it?
Example output for missing variable "environment_name":
22.10.2014 9:01:55 freemarker.log._JDK14LoggerFactory$JDK14Logger error
SEVERE: Error executing FreeMarker template
FreeMarker template error:
The following has evaluated to null or missing:
==> environment_name [in template "Osb-PrepareAndDeploy.ftl" at line 33, column 33]
Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myOptionVar.foo)!myDefault, (myOptionVar.foo)??
The failing instruction (FTL stack trace):
----------
==> ${environment_name} [in template "Osb-PrepareAndDeploy.ftl" at line 33, column 31]
----------
Java stack trace (for programmers):
----------
freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...]
at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:98)
at freemarker.core.EvalUtil.coerceModelToString(EvalUtil.java:382)
at freemarker.core.Expression.evalAndCoerceToString(Expression.java:115)
at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
at freemarker.core.Environment.visit(Environment.java:265)
at freemarker.core.MixedContent.accept(MixedContent.java:93)
at freemarker.core.Environment.visit(Environment.java:265)
at freemarker.core.Environment.process(Environment.java:243)
at freemarker.template.Template.process(Template.java:277)
at net.homecredit.scm.jenkinsTool.countrySettings.Country.createJobs(Country.java:282)
at net.homecredit.scm.jenkinsTool.Start.main(Start.java:83)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
You can't prevent the exception from being logged. TemplateExceptionHandler doesn't mean to make non-error from an error, it just lets you decide what to do after the error has happened. Like, you want to print an error page or something. In extreme case, you may want to continue page rendering after printing some error indicator, but that's still an error that need to be fixed.
Maybe it would help if you tell why do you need this. Maybe the solution isn't TemplateExceptionHandler-s.
As of more intelligent exception processing, first, in the handler you should check if the exception is a InvalidReferenceException, becaue I guess you don't want to deal with others. Then, with getBlamedExpressionString() (requires FreeMarker 2.3.21) you could get part of what you want to print to the output. It's only part of that, because if ${x + 1} fails because x is undefined, it will only return "x", not "x + 1".
I'm having an issue in JMeter wherein I receive this error
2014/08/14 14:13:26 ERROR - jmeter.util.BeanShellInterpreter: Error invoking bsh method: eval Sourced file: inline evaluation of: ``String RequestUrl = vars.get("RequestUrl"); String[] params = RequestUrl.split(" . . . '' : Typed variable declaration
2014/08/14 14:13:26 WARN - jmeter.extractor.BeanShellPostProcessor: Problem in BeanShell script org.apache.jorphan.util.JMeterException: Error invoking bsh method: eval Sourced file: inline evaluation of: ``String RequestUrl = vars.get("RequestUrl"); String[] params = RequestUrl.split(" . . . '' : Typed variable declaration
I have no clue whats wrong, and the code otherwise seems to be working. Can anyone give me some advice?
Here is the block of code in question:
String RequestUrl = vars.get("RequestUrl");
String[] params = RequestUrl.split("\\?");
String RequestTask = params[1].split("\\&")[1].split("=")[1];
System.out.println(RequestTask);
vars.put("RequestTask",RequestTask);
it should probably be mentioned that the code is in a post processor, which is paired with an Xpath extractor for "RequestUrl"
Edited to include entire error
I don't see your URL and what does XPath query return but in any case your URL parsing logic looks flaky as it strongly dependent on parameters order and presence and may bite you back in future in case of request URL change i.e. extra parameter or changed parameters order or something encoded, etc.
See below for reference:
import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URLEncodedUtils;
import java.net.URI;
import java.util.List;
String url = vars.get("RequestUrl");
List params = URLEncodedUtils.parse(new URI(url), "UTF-8");
for (NameValuePair param : params) {
if (param.getName().equals("put your actual param name here")) {
vars.put("RequestTask", param.getValue());
}
}
Also it worth checking out How to use BeanShell: JMeter's favorite built-in component for troubleshooting tips. In general to localize error logging should be used like:
log.info("something");
log.error("something else");
So if you don't see message in the log than Beanshell wasn't able to execute the line and failed somewhere above.
Also Beanshell error messages aren't very informative, I use the following construction in my scripts:
try {
//script logic here
}
catch (Throwable ex) {
log.error("Failed to do this or that", ex);
}
So error stracktrace could be read in jmeter.log file.
Hope this helps.
Could you show the whole error?
Try adding one statement after the other to see which one is root cause.
I suppose you may be making hypothesis on results (array access) which may be cause of issue.
if you are coverting a VuGen recorded JMS script to JMeter, then you have to look for the lr functions copied which WILL throw this/similar error.
For eg: int orderlinecount = Integer.parseInt(lr.eval_string("strInt"));
You have to make sure your script is free of all lr - related functions in order for the jmeter to successfully executed your script.
I am trying to call cudppSort to sort a set of keys/values. I'm using the following code to set up the sort algorithm:
CUDPPConfiguration config;
config.op = CUDPP_ADD;
config.datatype = CUDPP_UINT;
config.algorithm = CUDPP_SORT_RADIX;
config.options = CUDPP_OPTION_KEY_VALUE_PAIRS | CUDPP_OPTION_FORWARD | CUDPP_OPTION_EXCLUSIVE;
CUDPPHandle planHandle;
CUDPPResult result = cudppPlan(&planHandle, config, number_points, 1, 0);
if (CUDPP_SUCCESS != result) {
printf("ERROR creating CUDPPPlan\n");
exit(-1);
}
The program exits, however on the line:
CUDPPResult result = cudppPlan(&planHandle, config, number_points, 1, 0);
and prints to stdout:
Cuda error: allocScanStorage in file 'c:/the/path/to/release1.1/cudpp/src/app/scan_app.cu' in line 279 : invalid configuration argument.
I looked at the line in scan_app.cu. It is,
CUT_CHECK_ERROR("allocScanStorage");
So apparently my configuration has an error that is causing the allocScanStorage to bomb out. There are only two calls to CUDA_SAFE_CALL in the function and I don't see a reason why either has anything to do with the configuration.
What is wrong with my configuration?
So that this doesn't sit around as an unanswered question (I'm not sure if this is the right SO etiquette but it seems like an answered question shouldn't sit around unanswered...), I'm copying the comment I made above here as an answer since it was the solution:
I figured this out (I'm still learning CUDA at the moment.) Because the error checking is asynchronous errors can show up in strange places if you don't check for them from time to time. My code had caused an error before I called cudppPlan but because I didn't check for errors the cudppPlan reported the error as if it was in cudppPlan.