package org.simantics.document.server.request;

import org.simantics.db.ReadGraph;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.layer0.request.VariableRead;
import org.simantics.db.layer0.variable.Variable;
import org.simantics.document.server.DocumentServerUtils.AttributesRequest;
import org.simantics.utils.threads.logger.ITask;
import org.simantics.utils.threads.logger.ThreadLogger;
import org.simantics.document.server.JSONObject;

public class NodeRequest extends VariableRead<JSONObject> {

    public static final String ERRORS = "Errors";
    public static final String PROPERTY_VALUE_EXCEPTIONS = "_PropertyValueExceptions";

    public NodeRequest(Variable node) {
        super(node);
    }

    @Override
    public JSONObject perform(ReadGraph graph) throws DatabaseException {

        ITask task = DocumentRequest.PROFILE ? ThreadLogger.task(this) : null;

        JSONObject staticContent = graph.syncRequest(new AttributesRequest(variable));

        if(DocumentRequest.PROFILE) task.finish();
        
        return staticContent;
    }

}