forked from D-Net/dnet-hadoop
34 lines
1.0 KiB
Java
34 lines
1.0 KiB
Java
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package eu.dnetlib.dhp.utils.saxon;
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import net.sf.saxon.expr.XPathContext;
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import net.sf.saxon.lib.ExtensionFunctionCall;
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import net.sf.saxon.lib.ExtensionFunctionDefinition;
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import net.sf.saxon.om.Sequence;
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import net.sf.saxon.om.StructuredQName;
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import net.sf.saxon.trans.XPathException;
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public abstract class AbstractExtensionFunction extends ExtensionFunctionDefinition {
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public static final String DEFAULT_SAXON_EXT_NS_URI = "http://www.d-net.research-infrastructures.eu/saxon-extension";
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public abstract String getName();
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public abstract Sequence doCall(XPathContext context, Sequence[] arguments) throws XPathException;
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@Override
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public StructuredQName getFunctionQName() {
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return new StructuredQName("dnet", DEFAULT_SAXON_EXT_NS_URI, getName());
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}
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@Override
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public ExtensionFunctionCall makeCallExpression() {
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return new ExtensionFunctionCall() {
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@Override
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public Sequence call(XPathContext context, Sequence[] arguments) throws XPathException {
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return doCall(context, arguments);
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}
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};
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}
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}
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