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
Related
I recently upgraded my java version from java 1.7 to java 1.8. After the upgrade i am getting this error.
Caused by: ECMAScript Exception: Type Error: Can not find a common class loader for ScriptObject and My Interface.
Which version of wicket do i need to use which supports java 1.8 and nashorn script engine. Also do i need to configure anything related to Script Engine for wicket.
I have tried adding this dependency
<dependency>
<groupId>org.wicketstuff</groupId>
<artifactId>wicketstuff-nashorn</artifactId>
<version>7.4.0</version>
</dependency>
and ScriptEngineManager sem = new ScriptEngineManager();
engine = sem.getEngineByName("nashorn");
but i am still getting the same issue.
Please help me fix this issue.
Below is my method
private final ScriptEngine engine;
ScriptEngineManager sem = new ScriptEngineManager();
engine = sem.getEngineByName("nashorn");
public <K> K getNewInterface(MyScript myScript){
ScriptContext ctx = new SimpleScriptContext();
String script = myScript.getScript();
if(Strings.isEmpty(script)) {markInvalid(myScript, "Script is empty", null); return null;}
script += " (function(){return this;})();";
Object thiz;
try{
thiz = engine.eval(script, ctx);
} catch (ScriptException e){
markInvalid(myScript, "Can't execute script", e);
return null;
}
if(thiz==null) {markInvalid(myScript, "Script executed, but context is null", null); return null;}
K ret = (K) ((Invocable)engine).getInterface(thiz, myScript.getScriptInterfaceClass());
if(ret==null) {
markInvalid(myScript, "Script executed, but it's incompatible with required interface", null);
return null;
}else{
myScript.setValid(true);
return ret;
}
}
Wicket doesn't need Nashorn. You can use Wicket 1.5/6.x/7.x/8.x with Java 8.
wicketstuff-nashorn is definitely not needed to run Wicket application.
Without the actual error it is hard for us to tell why it is failing.
Update: why do you use new ScriptEngineManager(null), i.e. null ClassLoader. Better use new ScriptEngineManager() and it will use the context class loader which most probably knows about both classes. Or use new ScriptEngineManager(YourInterface.class.getClassLoader())
I am implementing my own DSL and using Xtend to generate codes. I need some static resources to be copied to my generate code. I was trying to use commons-io, but I couldn't get anywhere with that! What is the best way to do so? I am trying to avoid reading each file and writing to the corresponding file in output path...
This should do (taken from this web site, slightly modified, not tested)
def static void copyFileUsingChannel(File source, File dest) throws IOException {
FileChannel sourceChannel = null;
FileChannel destChannel = null;
try {
sourceChannel = new FileInputStream(source).getChannel();
destChannel = new FileOutputStream(dest).getChannel();
destChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
}finally{
sourceChannel.close();
destChannel.close();
}
}
I could use Refactor->Inine when I need to inline a method.
This the code skeleton that I tried, I used the code in this post - Is there any eclipse refactoring API that I can call programmatically?.
// 1. Get ICompiationUnit for type "smcho.Hello"
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
IProject project = root.getProject("Hello");
project.open(null /* IProgressMonitor */);
IJavaProject javaProject = JavaCore.create(project);
IType itype = javaProject.findType("smcho.Hello");
org.eclipse.jdt.core.ICompilationUnit icu = itype.getCompilationUnit();
// 2. Contribution and Description creation
RefactoringContribution contribution = RefactoringCore.getRefactoringContribution(IJavaRefactorings.INLINE_METHOD);
InlineMethodDescriptor descriptor = (InlineMethodDescriptor) contribution.createDescriptor();
descriptor.setProject(icu.getResource().getProject().getName( ));
// 3. executing the refactoring
RefactoringStatus status = new RefactoringStatus();
try {
Refactoring refactoring = descriptor.createRefactoring(status);
IProgressMonitor monitor = new NullProgressMonitor();
refactoring.checkInitialConditions(monitor);
refactoring.checkFinalConditions(monitor);
Change change = refactoring.createChange(monitor);
change.perform(monitor);
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
When I execute the code, I got this error
org.eclipse.core.runtime.CoreException: The refactoring script argument 'input' is missing
in the refactoring script.
I think I need to give the refactored method name to the API. What might be wrong in the code?
You never supply the method to the refactoring operation in the above code, you only give it the project context. But I don't know the necessary API for that.
If you look at this source code, you will notice the use of JavaRefactoringDescriptorUtil.ATTRIBUTE_INPUT, which is probably the one you also need to set. Maybe you can search the refactoring.ui plugin sources for references to that attribute.
This is the code that works with inline refactoring JDT API.
It requires start position and length to be inlined.
int[] selection= {start, length}; // getSelection();
InlineMethodRefactoring refactoring= InlineMethodRefactoring.create(this.icu, new RefactoringASTParser(ASTProvider.SHARED_AST_LEVEL).parse(this.icu, true), selection[0], selection[1]);
refactoring.setDeleteSource(true);
refactoring.setCurrentMode(Mode.INLINE_ALL); // or INLINE SINGLE based on the user's intervention
IProgressMonitor pm= new NullProgressMonitor();
RefactoringStatus res = refactoring.checkInitialConditions(pm);
res = refactoring.checkFinalConditions(pm);
final PerformRefactoringOperation op= new PerformRefactoringOperation(
refactoring, getCheckingStyle());
op.run(new NullProgressMonitor());
When you know the name of the method that is going to be inlined, you can use the code in - Getting startPosition and length of a method invocation using JDT
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.