io.apicurio.datamodels.deref.UnresolvedReferenceNodeVisitor Maven / Gradle / Ivy

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package io.apicurio.datamodels.deref;

import java.util.LinkedList;
import java.util.List;

import io.apicurio.datamodels.models.Node;
import io.apicurio.datamodels.models.Referenceable;

/**
 * Visitor used to find nodes that have a $ref that has not yet been resolved.
 *
 * @author [email protected]
 */
public class UnresolvedReferenceNodeVisitor extends AllReferenceableNodeVisitor {

    private List nodesWithUnresolvedRefs = new LinkedList<>();

    @Override
    protected void visitReferenceableNode(Referenceable refNode) {
        if (!isResolved((Node) refNode)) {
            nodesWithUnresolvedRefs.add((Node) refNode);
        }
    }

    private boolean isResolved(Node refNode) {
        Object resolved = refNode.getNodeAttribute(DereferenceConstants.KEY_RESOLUTION);
        return DereferenceConstants.VALUE_RESOLVED.equals(resolved) ||
                DereferenceConstants.VALUE_UNRESOLVEABLE.equals(resolved);
    }

    public List getNodesWithUnresolvedRefs() {
        return this.nodesWithUnresolvedRefs;
    }

}