X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FAdaptValue.java;fp=bundles%2Forg.simantics.db.common%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fcommon%2Frequest%2FAdaptValue.java;h=82b6bf965ee0dc94f59a5eec005ada2b3c178dfb;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/AdaptValue.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/AdaptValue.java new file mode 100644 index 000000000..82b6bf965 --- /dev/null +++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/AdaptValue.java @@ -0,0 +1,47 @@ +package org.simantics.db.common.request; + +import org.simantics.db.ReadGraph; +import org.simantics.db.Resource; +import org.simantics.db.common.utils.Functions; +import org.simantics.db.exception.DatabaseException; +import org.simantics.db.exception.RuntimeDatabaseException; +import org.simantics.layer0.Layer0; +import org.simantics.scl.reflection.ReflectionUtils; +import org.simantics.scl.reflection.ValueNotFoundException; +import org.simantics.scl.runtime.function.FunctionImpl3; + +/** + * Adapts a resource to (SCL) value. + * @author Hannu Niemistö + */ +public class AdaptValue extends ResourceRead { + + public AdaptValue(Resource resource) { + super(resource); + } + + private static final FunctionImpl3 functionApplication = new FunctionImpl3() { + + @Override + public Object apply(ReadGraph graph, Resource resource, Object context) { + try { + return Functions.exec(graph, resource, graph, resource, context); + } catch (DatabaseException e) { + throw new RuntimeDatabaseException(e); + } + } + + }; + + @Override + public Object perform(ReadGraph graph) throws DatabaseException { + String uri = graph.getURI(resource); + try { + if(Layer0.URIs.Functions_functionApplication.equals(uri)) return functionApplication; + return ReflectionUtils.getValue(uri).getValue(); + } catch (ValueNotFoundException e) { + throw new DatabaseException("Couldn't adapt the value " + uri, e); + } + } + +}