When I run WURFL demo app for scala:
object Demo {
def main(args: Array[String]) {
// Create WURFL passing a GeneralWURFLEngine object with a wurfl xml
val wurflWrapper = new Wurfl(new GeneralWURFLEngine("classpath:/resources/wurfl.zip"))
// Set cache provider
wurflWrapper.setCacheProvider(new LRUMapCacheProvider)
// Set Performance/Accuracy Mode
wurflWrapper.setTargetAccuracy
// Set Capability Filter
wurflWrapper.setFilter(
"can_assign_phone_number",
"marketing_name",
"brand_name",
"model_name",
"is_smarttv",
"is_wireless_device",
"device_os",
"device_os_version",
"is_tablet",
"ux_full_desktop",
"pointing_method",
"preferred_markup",
"resolution_height",
"resolution_width",
"xhtml_support_level")
// User-Agent here
var userAgent = ""
// Defining headers
var headers = Map("Accept-Datetime"->"Thu, 31 May 2007 20:35:00 GMT")
headers += ("Content-Type"-> "application/x-www-form-urlencoded")
var device = wurflWrapper.deviceForHeaders(userAgent, headers)
val matchType = device.matchType
if (matchType == MatchType.conclusive)
{
println("Match Type is conclusive")
}
val wireless = device.capability("is_wireless_device")
println("Is wireless: " + wireless)
}
}
I get this exception:
[main] ERROR net.sourceforge.wurfl.core.GeneralWURFLEngine - cannot initialize: java.lang.NullPointerException: in is null
java.lang.NullPointerException: in is null
at java.util.zip.ZipInputStream.<init>(ZipInputStream.java:101)
at java.util.zip.ZipInputStream.<init>(ZipInputStream.java:80)
at net.sourceforge.wurfl.core.resource.FileLoader.fromZipFile(FileLoader.java:248)
at net.sourceforge.wurfl.core.resource.FileLoader.openInputStream(FileLoader.java:230)
at net.sourceforge.wurfl.core.resource.FileLoader.getStream(FileLoader.java:288)
at net.sourceforge.wurfl.core.resource.XMLResource.getData(XMLResource.java:163)
at net.sourceforge.wurfl.core.resource.DefaultWURFLModel.init(DefaultWURFLModel.java:115)
at net.sourceforge.wurfl.core.resource.DefaultWURFLModel.<init>(DefaultWURFLModel.java:107)
at net.sourceforge.wurfl.core.GeneralWURFLEngine.init(GeneralWURFLEngine.java:340)
at net.sourceforge.wurfl.core.GeneralWURFLEngine.initIfNeeded(GeneralWURFLEngine.java:319)
at net.sourceforge.wurfl.core.GeneralWURFLEngine.getDeviceForRequest(GeneralWURFLEngine.java:451)
at com.scientiamobile.wurfl.Wurfl.deviceForHeaders(Wurfl.scala:77)
at com.Demo$.main(Demo.scala:49)
at com.Demo.main(Demo.scala)
Exception in thread "main" net.sourceforge.wurfl.core.exc.WURFLRuntimeException: WURFL unexpected exception
at net.sourceforge.wurfl.core.GeneralWURFLEngine.initIfNeeded(GeneralWURFLEngine.java:322)
at net.sourceforge.wurfl.core.GeneralWURFLEngine.getDeviceForRequest(GeneralWURFLEngine.java:451)
at com.scientiamobile.wurfl.Wurfl.deviceForHeaders(Wurfl.scala:77)
at com.Demo$.main(Demo.scala:49)
at com.Demo.main(Demo.scala)
Caused by: java.lang.NullPointerException: in is null
at java.util.zip.ZipInputStream.<init>(ZipInputStream.java:101)
at java.util.zip.ZipInputStream.<init>(ZipInputStream.java:80)
at net.sourceforge.wurfl.core.resource.FileLoader.fromZipFile(FileLoader.java:248)
at net.sourceforge.wurfl.core.resource.FileLoader.openInputStream(FileLoader.java:230)
at net.sourceforge.wurfl.core.resource.FileLoader.getStream(FileLoader.java:288)
at net.sourceforge.wurfl.core.resource.XMLResource.getData(XMLResource.java:163)
at net.sourceforge.wurfl.core.resource.DefaultWURFLModel.init(DefaultWURFLModel.java:115)
at net.sourceforge.wurfl.core.resource.DefaultWURFLModel.<init>(DefaultWURFLModel.java:107)
at net.sourceforge.wurfl.core.GeneralWURFLEngine.init(GeneralWURFLEngine.java:340)
at net.sourceforge.wurfl.core.GeneralWURFLEngine.initIfNeeded(GeneralWURFLEngine.java:319)
... 4 more
The "wurfl.zip" is well located under "resources".
I also tried adding it to main Scala classes path, but still not luck.
From a code perspective
val wurflWrapper = new Wurfl(new GeneralWURFLEngine("classpath:/resources/wurfl.zip"))
is a proper way to initialize your WURFL engine.
You may want to provide information about how you're running the demo, if you are running it inside an IDE (IDEA, Eclipse or Netbeans), or using command line, or other ways. It can also be useful to tell whether you're using Maven or not.
In case you are running it using command line, please provide a sample of how you launch the Scala app and how you set the classpath.
Assuming a scenario where you are compiling with maven and executing the project directly into the target dir using -cp classes, execution will result in your classpath error because resource files are not included in the classes directory.
Make sure that wurfl-scala-example-.jar is included your classpath.
If you are using the Demo project inside IntelliJ IDEA, please make sure that the resource directory is marked as "resource", otherwise IDEA run tool will not include the wurfl.zip file as a resource.
Hope this helps.
Related
I used pullXml due to the file size is quite large, > 100M, I wrote a sample program as follows:
object TestXml {
val mc = new java.math.MathContext(1024)
val zero = BigDecimal(0, mc)
def calculate(infile: String, encoding: String): BigDecimal = {
val inStream = new FileInputStream(infile)
val pull = pullXml(new InputSource(new InputStreamReader(inStream, encoding)))
val ns = Namespace("urn:abcaus.onair.sintecmedia.com")
val qnames = List(ns("ePGResp"), "EPGResponse"l, "Event"l)
def eventStream = iterate(qnames, pull).toStream
var count = zero
eventStream foreach { event => count += eventId(event) }
inStream.close
count
}
def eventId(event: XmlPath): Long =
text(event.\*("EventID")).toLong
def main(args: Array[String]): Unit = args.toList match {
case infile :: encoding :: Nil => println(calculate(infile, encoding))
case _ => println("usage scala -cp classpath au.net.abc.epg.TestLoadXml infile encoding")
}
}
I run the program on a command line as follows:
$JAVA_HOME/bin/java -cp JarContainsSampleProgram.jar:scala-library-2.10.2.jar:scala-reflect-2.10.2.jar:scalalogging-slf4j_2.10-1.0.1.jar:scalaz-core_2.10-7.0.0.jar:scalaz-effect_2.10-7.0.0.jar:scalaz-iterv_2.10-7.0.0.jar:scales-xml_2.10-0.6.0-M1.jar:slf4j-api-1.6.4.jar TestLoadXml /home/wonga4d/EPG/Huge.xml utf-16
It runs successfully returning a value, say, 879452677392.
However, when I deploy it as a oracle service bus Java callout (which is ok because Scala is JVM lang) to be used by an OSB proxy, still use the same input file and encoding, I got the following error
Callout to java method "public static scala.math.BigDecimal au.net.abc.epg.TestLoadXml.calculate(java.lang.String,java.lang.String)" resulted in exception: Got an event (Text()) that should not be in the prolog java.lang.RuntimeException: Got an event (Text()) that should not be in the prolog
at scala.sys.package$.error(package.scala:27)
at scala.Predef$.error(Predef.scala:142)
at scales.utils.package$.error(package.scala:19)
at scales.xml.parser.pull.PullUtils$$anonfun$getMisc$1.apply(PullIterator.scala:144)
at scales.xml.parser.pull.PullUtils$$anonfun$getMisc$1.apply(PullIterator.scala:141)
at scala.util.Either.fold(Either.scala:97)
at scales.xml.parser.pull.PullUtils$.getMisc(PullIterator.scala:141)
at scales.xml.parser.pull.XmlPull$class.start(PullIterator.scala:89)
at scales.xml.parser.pull.XmlPulls$$anon$1.start(XmlPull.scala:134)
at scales.xml.parser.pull.XmlPulls$$anon$1.<init>(XmlPull.scala:156)
at scales.xml.parser.pull.XmlPulls$class.pullXml(XmlPull.scala:134)
at scales.xml.package$.pullXml(package.scala:7)
at TestXml$.calculate(TestLoadXml.scala:23)
at TestXml.calculate(TestLoadXml.scala)
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 stages.transform.runtime.JavaCalloutRuntimeStep$1.run(JavaCalloutRuntimeStep.java:173)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
at weblogic.security.Security.runAs(Security.java:61)
at stages.transform.runtime.JavaCalloutRuntimeStep.processMessage(JavaCalloutRuntimeStep.java:195)
at com.bea.wli.sb.pipeline.debug.DebuggerRuntimeStep.processMessage(DebuggerRuntimeStep.java:74)
at com.bea.wli.sb.stages.StageMetadataImpl$WrapperRuntimeStep.processMessage(StageMetadataImpl.java:346)
at com.bea.wli.sb.pipeline.PipelineStage.processMessage(PipelineStage.java:84)
It fails at pullXml. But it always succeeds when running on a commandline which I showed before. If I don't use pullXml but loadXml, it will always succeed even when running in a weblogic server. But loadXml will get a problem if loading a huge xml file. Both pullXml & loadXml methods are located in the same jar, scales-xml_2.10-0.6.0-M1.jar.
Just wonder if anyone ever used scales xml in weblogic server. Sounds like I got to give up using scales xml if weblogic server is the execution environment.
Thanks
that your code runs outside of weblogic shows its a javax.xml implementation issue. Its possible that this only needs you to supply an alternate implementation (e.g. aalto-xml) with a "child first" or app first classloader setting.
If you could let me know (answering here is cool) if that sorts things out that would be great, I'll add it to the docs.
Outside of this issue I hope Scales is working out for you :)
Cheers,
Chris
I am trying to create a jetty consumer. I am able to get it successfully running using the endpoint uri:
jetty:http://0.0.0.0:8080
However, when I modify the endpoint uri for https:
jetty:https://0.0.0.0:8443
The page times out trying to load. This seems odd because the camel documentation states it should function right out of the box.
I have since loaded a signed SSL into java's default keystore, with my attempted implementation to load it below:http://camel.apache.org/jetty.html
I have a basic Jetty instance using the akka-camel library with akka and scala. ex:
class RestActor extends Actor with Consumer {
val ksp: KeyStoreParameters = new KeyStoreParameters();
ksp.setPassword("...");
val kmp: KeyManagersParameters = new KeyManagersParameters();
kmp.setKeyStore(ksp);
val scp: SSLContextParameters = new SSLContextParameters();
scp.setKeyManagers(kmp);
val jettyComponent: JettyHttpComponent = CamelExtension(context.system).context.getComponent("jetty", classOf[JettyHttpComponent])
jettyComponent.setSslContextParameters(scp);
def endpointUri = "jetty:https://0.0.0.0:8443/"
def receive = {
case msg: CamelMessage => {
...
}
...
}
...
}
This resulted in some progress, because the page does not timeout anymore, but instead gives a "The connection was interrupted" error. I am not sure where to go from here because camel is not throwing any Exceptions, but rather failing silently somewhere (apparently).
Does anybody know what would cause this behavior?
When using java's "keytool" I did not specify an output file. It didn't throw back an error, so it probably went somewhere. I created a new keystore and explicitly imported my crt into the keyfile. I then explicitly added the filepath to that keystore I created, and everything works now!
If I had to speculate, it is possible things failed silently because I was adding the certs to jetty's general bank of certs to use if eligible, instead of explicitly binding it as the SSL for the endpoint.
class RestActor extends Actor with Consumer {
val ksp: KeyStoreParameters = new KeyStoreParameters();
ksp.setResource("/path/to/keystore");
ksp.setPassword("...");
val kmp: KeyManagersParameters = new KeyManagersParameters();
kmp.setKeyStore(ksp);
val scp: SSLContextParameters = new SSLContextParameters();
scp.setKeyManagers(kmp);
val jettyComponent: JettyHttpComponent = CamelExtension(context.system).context.getComponent("jetty", classOf[JettyHttpComponent])
jettyComponent.setSslContextParameters(scp);
def endpointUri = "jetty:https://0.0.0.0:8443/"
def receive = {
case msg: CamelMessage => {
...
}
...
}
...
}
Hopefully somebody in the future can find use for this code as a template in implementing Jetty over SSL with akka-camel (surprisingly no examples seem to exist)
I have produced a fop.dll from fop-1.0 with ikvm:
ikvmc -target:library -reference:IKVM.OpenJDK.Core.dll -recurse:{myPathToJars}\*.jar -version:1.0 -out:{myPathToJars}\fop.dll
If I use my fop.dll in a Windows Application, everything works perfect.
If I use it in a Class Library, I get the following error:
"Provider com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl not found" at javax.xml.transform.TransformerFactory.newInstance()
The code line is: TransformerFactory factory = TransformerFactory.newInstance();
Here is the code of method:
public static void xmlToPDF(String xmlPath, String xslPath, SortedList arguments, String destPdfPath)
{
java.io.File xmlfile = new java.io.File(xmlPath);
java.io.File pdffile = new java.io.File(destPdfPath);
try
{
// configure fopFactory as desired
FopFactory fopFactory = FopFactory.newInstance();
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// configure foUserAgent as desired
// Setup output
OutputStream outputStream = new java.io.FileOutputStream(pdffile);
outputStream = new java.io.BufferedOutputStream(outputStream);
try
{
// Construct fop with desired output format
Fop fop = fopFactory.newFop("application/pdf" /*MimeConstants.MIME_PDF*/, foUserAgent, outputStream);
// Setup XSLT
TransformerFactory factory = TransformerFactory.newInstance();
java.io.File xsltfile = new java.io.File(xslPath);
Transformer transformer = factory.newTransformer(new StreamSource(xsltfile.getAbsoluteFile()));
// Set the value of a in the stylesheet
if (arguments != null)
{
IList keys = arguments.GetKeyList();
foreach (var key in keys)
{
Object value = arguments[key];
transformer.setParameter(key.ToString(), value);
}
}
// Setup input for XSLT transformation
Source src = new StreamSource(xmlfile);
// Resulting SAX events (the generated FO) must be piped through to FOP
Result res = new SAXResult(fop.getDefaultHandler());
// Start XSLT transformation and FOP processing
transformer.transform(src, res);
}
catch (Exception e1)
{
System.Console.WriteLine(e1.Message);
}
finally
{
outputStream.close();
}
}
catch (Exception ex)
{
System.Console.WriteLine(ex.Message);
}
}
I used ikvm-0.46.0.1 to make my fop.dll (based on fop 1.0). I included the following jars:
avalon-framework-4.2.0.jar
batik-all-1.7.jar
commons-io-1.3.1.jar
commons-logging-1.0.4.jar
fop.jar
serializer-2.7.0.jar
xalan-2.7.0.jar
xercesImpl-2.7.1.jar
xml-apis-1.3.04.jar
xml-apis-ext-1.3.04.jar
xmlgraphics-commons-1.4.jar
Any idea why this error occurs? Why is the behaviour different between Windows Application and Class Library?
Addition 10/19/11:
I managed to get working the following:
MyMainPrg (a Windows Forms Application)
MyFopWrapper (a Class Library that calls fop.dll)
But for my case this is not the solution, because in my target project, I have the following structure:
MainCmdLinePrg (a Console Application; calls DLL_1)
DLL_1 (calls DLLsharedFop) {there are several DLLs that can call DLLsharedFop}
DLLsharedFop (calls directly fop.dll; or - I don't care - might call MyFopWrapper)
Unfortunately this construct results in the error.
You can shorten to a pair (ACmdLinePrg,MyFopWrapper): already this does not work! But (MyMainPrg,MyFopWrapper) does...
Here is how I got that error and how I resolved:
My solultion looks like this:
ClientApp (references)--> ClassLibrary1
My ClassLibrary1 public functions are using, but not exposing any IKVM related objects, therefore the caller (ClientApp) did not have to add IKVM references. All is good in compile time.
However in runtime, the situation is different. I got the same exception and realized that ClientApp also needed to reference the correct IKVM dll (IKVM.OpenJDK.XML.Transform.dll) that contains "com.sun.org.apache.xalan.#internal.xsltc.trax" namespace.
I resolved a similar problem by adding the following before the problematic line:
var s = new com.sun.org.apache.xerces.#internal.jaxp.SAXParserFactoryImpl();
var t = new com.sun.org.apache.xalan.#internal.xsltc.trax.TransformerFactoryImpl();
As described here
Do you have the dll with the missing class in your working directory?
If you have the dll then it is a classloader problem. Look in the IKVM wiki. Often the BootClassPathAssemby help.
I was using NuGet Packages of FOP.dll v1.1.0 and IKVM pacakges of v7.1.45 in C#.NET app. I got this issue on Windows 2016 x64 server with error messages like:
------------------------------ Fop.cs (111): Provider com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl
not found - at javax.xml.transform.TransformerFactory.newInstance()
Fop.cs (125): Provider
com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl not found
- at javax.xml.parsers.SAXParserFactory.newInstance()\r\n at org.apache.avalon.framework.configuration.DefaultConfigurationBuilder..ctor(Boolean
enableNamespaces)\r\n at
org.apache.avalon.framework.configuration.DefaultConfigurationBuilder..ctor()\r\n
I resolved the problem by adding those two lines at begins of procedure
com.sun.org.apache.xerces.#internal.jaxp.SAXParserFactoryImpl s = new com.sun.org.apache.xerces.#internal.jaxp.SAXParserFactoryImpl();
com.sun.org.apache.xalan.#internal.xsltc.trax.TransformerFactoryImpl t = new com.sun.org.apache.xalan.#internal.xsltc.trax.TransformerFactoryImpl();
helpful link:
https://github.com/KevM/tikaondotnet/issues/21
I've got an XML file that I need to read from the classpath in order to load some test data for my project with DBUnit when running a custom runTask in SBT.
The XML file is located in /src/main/resources and is copied properly to the /target/scala_2.8.1/classes during the build, but I get a MalformedURLException when trying to access it.
The weird thing is, I can access the file when this data loading functionality was part of my Scala specs unit tests.
Any ideas?
In my case the problem was that I used getClass.getResourceAsStream() in early initialiser. Had to specify the class explicitly with Class.forName() to solve it: Class.forName(<class name>).getResourceAsStream("/data.xml")
If the error is saying that the URL is malformed, it's probably true.
Here's a code I use to grab file from resource during test:
def copyFileFromResource(source: String, dest: File) {
val in = getClass.getResourceAsStream(source)
val reader = new java.io.BufferedReader(new java.io.InputStreamReader(in))
val out = new java.io.PrintWriter(new java.io.FileWriter(dest))
var line: String = null
line = reader.readLine
while (line != null) {
out.println(line)
line = reader.readLine
}
in.close
out.flush
}
We have our site hosted in medium trust level and the hosting provider has refused to give us full trust. Our code tries to deserialize code using following code snippet but fails with the reflectionpermission error. Upon debug I get "There is an error in XML document (71, 6)." error. It works perfectly fine in full trust. Please someone advice how I can solve this problem before we decide to move to full trust hosting provider.
public static T Decrypt<T>(Stream stream)
{
Rijndael rij = Rijndael.Create();
rij.Key = key;
rij.IV = iv;
T obj = default(T); // assigns null if T is a reference type, or 0 (zero) for value types
using (CryptoStream cs = new CryptoStream(stream, rij.CreateDecryptor(), CryptoStreamMode.Read))
{
using (GZipStream zs = new GZipStream(cs, CompressionMode.Decompress))
{
XmlSerializer xs = new XmlSerializer(typeof(T));
obj = (T)xs.Deserialize(zs);
zs.Close();
}
cs.Close();
}
return obj;
}
Open the project properties and set "Generate serialization assembly" to "on". This will make the compiler generate serialization assemblies at compile-time instead of on the fly. Just make sure to deploy the serialization assemblies.