src/main/org/apache/tools/ant/taskdefs/optional/XslpLiaison.java

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package org.apache.tools.ant.taskdefs.optional;

import com.kvisco.xsl.XSLProcessor;
import com.kvisco.xsl.XSLReader;
import com.kvisco.xsl.XSLStylesheet;
import org.apache.tools.ant.taskdefs.XSLTLiaison;
import org.apache.tools.ant.BuildException;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;

/**
 * Concrete liaison for XSLP
 *
 * @author <a href="mailto:rubys@us.ibm.com">Sam Ruby</a>
 * @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
 * @since Ant 1.1
 */
public class XslpLiaison implements XSLTLiaison {

    protected XSLProcessor processor;
    protected XSLStylesheet xslSheet;

    public XslpLiaison() {
        processor = new XSLProcessor();
        // uh ?! I'm forced to do that otherwise a setProperty crashes
        // with NPE !  I don't understand why the property map is static
        // though...  how can we do multithreading w/ multiple identical
        // parameters ?
        processor.getProperty("dummy-to-init-properties-map");
    }

    public void setStylesheet(File fileName) throws Exception {
        XSLReader xslReader = new XSLReader();
        // a file:/// + getAbsolutePath() does not work here
        // it is really the pathname
        xslSheet = xslReader.read(fileName.getAbsolutePath());
    }
    
    public void transform(File infile, File outfile) throws Exception {
        FileOutputStream fos = new FileOutputStream(outfile);
        // XSLP does not support encoding...we're in hot water.
        OutputStreamWriter out = new OutputStreamWriter(fos, "UTF8");
        processor.process(infile.getAbsolutePath(), xslSheet, out);
    }

    public void addParam(String name, String expression){
        processor.setProperty(name, expression);
    }

} //-- XSLPLiaison