4 Replies Latest reply on Jan 28, 2013 7:29 AM by rahul22

Seam3 or CDI equivalent for org.jboss.seam.core.Interpolator

iphands Jul 23, 2011 3:33 PM

Does Seam3/CDI expose access to a class that I can use for Interpolation?

In Seam2 I was using org.jboss.seam.core.Interpolator.interpolate() to interpolate XML files (read from disk) before transformation and publishing (so that I can xsl:sort on interpolated values).

What the end goal here is to be able to do something like:

public String getLocalizedXml() {
        // String xml = FileUtils.readFileToString(new File("/foo.xml"));
        String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><foo><bar>#{messages['foo.bar']}</bar></foo>";
        return Interpolator.instance().interpolate(xml);
}

1. Re: Seam3 or CDI equivalent for org.jboss.seam.core.Interpolator

iphands Jul 23, 2011 6:01 PM (in response to iphands)

Found an answer here https://issues.jboss.org/browse/SEAMINTL-16

Off to try the beta bits I guess.
Actions

2. Re: Seam3 or CDI equivalent for org.jboss.seam.core.Interpolator

iphands Jul 24, 2011 4:13 PM (in response to iphands)

I tried to implement the interpolator from Seam2 (http://anonsvn.jboss.org/repos/seam/branches/community/Seam22/src/main/org/jboss/seam/core/Interpolator.java) in my project, but I am having some issues.

public String getTestString() {
     String expression = "#{messages['nav.knowledge.docs']}";
     String value = expressions.evaluateValueExpression(expression, String.class);
     return value;
}

Caused by: java.lang.NullPointerException
     at com.sun.faces.el.FacesResourceBundleELResolver.getValue(FacesResourceBundleELResolver.java:81) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]
     at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]
     at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203) [jsf-impl-2.0.4-b09-jbossorg-4.jar:2.0.4-b09-jbossorg-4]
     at org.jboss.seam.faces.el.FacesContextELResolver.getValue(FacesContextELResolver.java:39) [seam-faces-3.0.2.Final.jar:]
     at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:175) [jboss-el-api_2.2_spec-1.0.0.Final.jar:1.0.0.Final]

Anyone know why? Is this a bug?

The class I am using to test this is almost the same as the exmple http://docs.jboss.org/seam/3/solder/latest/reference/en-US/html/elextensions.html

3. Re: Seam3 or CDI equivalent for org.jboss.seam.core.Interpolator

iphands Jul 24, 2011 11:22 PM (in response to iphands)

Opened jira https://issues.jboss.org/browse/SOLDER-111
Actions
4. Re: Seam3 or CDI equivalent for org.jboss.seam.core.Interpolator

rahul22 Jan 28, 2013 7:29 AM (in response to iphands)

hi Ian,

I'm also looking to find Interpolator equilance class in seam 3 or CDI .

did you find any other solution then using Interpolator.java from seam 2 ???

as i can see , all the issues are still unresolved. so what workaround you followed ???

I'll be happy if you can share some information.

Thanks
Actions

Go to original post