FnStaticBaseUri.java
/*
* SPDX-FileCopyrightText: none
* SPDX-License-Identifier: CC0-1.0
*/
package gov.nist.secauto.metaschema.core.metapath.function.library;
import gov.nist.secauto.metaschema.core.metapath.DynamicContext;
import gov.nist.secauto.metaschema.core.metapath.ISequence;
import gov.nist.secauto.metaschema.core.metapath.MetapathConstants;
import gov.nist.secauto.metaschema.core.metapath.function.IArgument;
import gov.nist.secauto.metaschema.core.metapath.function.IFunction;
import gov.nist.secauto.metaschema.core.metapath.item.IItem;
import gov.nist.secauto.metaschema.core.metapath.item.atomic.IAnyUriItem;
import gov.nist.secauto.metaschema.core.metapath.item.atomic.IStringItem;
import java.net.URI;
import java.util.List;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
public final class FnStaticBaseUri {
@NonNull
static final IFunction SIGNATURE = IFunction.builder()
.name("static-base-uri")
.namespace(MetapathConstants.NS_METAPATH_FUNCTIONS)
.deterministic()
.contextDependent()
.focusIndependent()
.argument(IArgument.builder()
.name("arg1")
.type(IStringItem.class)
.zeroOrOne()
.build())
.returnType(IAnyUriItem.class)
.returnOne()
.functionHandler(FnStaticBaseUri::execute)
.build();
@SuppressWarnings("unused")
@NonNull
private static ISequence<IAnyUriItem> execute(@NonNull IFunction function,
@NonNull List<ISequence<?>> arguments,
@NonNull DynamicContext dynamicContext,
IItem focus) {
IAnyUriItem uri = fnStaticBaseUri(dynamicContext);
return ISequence.of(uri);
}
private FnStaticBaseUri() {
// disable construction
}
/**
* Get the static base URI from the static context.
*
* @param context
* the dynamic context
* @return the base URI or {@code null} if none was set
*/
@Nullable
public static IAnyUriItem fnStaticBaseUri(@NonNull DynamicContext context) {
URI staticBaseUri = context.getStaticContext().getBaseUri();
return staticBaseUri == null ? null : IAnyUriItem.valueOf(staticBaseUri);
}
}