ViewDataset.java

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package cedar.hepdata.webapp.pages.dataset;

import cedar.hepdata.model.*;
import cedar.hepdata.util.*;
import cedar.hepdata.xml.*;
import cedar.hepdata.db.*;

import org.apache.tapestry5.StreamResponse;
import org.apache.tapestry5.util.TextStreamResponse;
import org.apache.tapestry5.annotations.*;
import org.apache.tapestry5.ioc.annotations.*;
import org.apache.tapestry5.services.*;

import org.hibernate.*;
import org.hibernate.criterion.*;
import java.util.*;

import org.antlr.stringtemplate.*;


public class ViewDataset {

    @Inject
    private RequestGlobals _reqGlobals;

    @Inject
    private org.hibernate.Session _session;


    public StreamResponse onYODA() {
        String asYODA = "No valid paper and dataset specified";

        Dataset ds = getDataset();
        if (ds != null) {
            StringBuffer s = new StringBuffer();
            for (XAxis x : ds.getXAxes()) {
                for (YAxis y : ds.getYAxes()) {
                    StringTemplate path = new StringTemplate("/HepData/$paperid$/d$did$-x$xid$-y$yid$");
                    path.setAttribute("paperid", ds.getPaper().getId());
                    path.setAttribute("did", ds.getId());
                    path.setAttribute("xid", x.getId());
                    path.setAttribute("yid", y.getId());
                    s.append("BEGIN HISTO1D "  + path.toString());
                    for (int r = 0; r < ds.numPoints(); ++r) {
                        StringTemplate row = new StringTemplate("$xlow$\t$xhigh$\t$yval$\t$yerr$");
                        Bin b = x.getBin(r);
                        Point p = y.getPoint(r);
                        if (b != null) {
                            Double xlow = null;
                            Double xhigh = null;
                            if (b.getLowValue() != null) {
                                xlow = b.getLowValue();
                                xhigh = b.getHighValue();
                            } else {
                                Double xval = b.getFocus();
                                Double xwidth = b.getWidth();
                                if (xval != null) {
                                    xlow = xval;
                                    xhigh = xval;
                                    if (xwidth != null) {
                                        xlow -= xwidth/2.0;
                                        xhigh += xwidth/2.0;
                                    }
                                }
                            }
                            row.setAttribute("xlow", xlow);
                            row.setAttribute("xhigh", xhigh);
                        }
                        if (p != null) {
                            row.setAttribute("yval", p.getValue());
                            double yerr = 0.0;
                            if (!p.getErrors().isEmpty()) {
                                try {
                                    yerr = p.getErrors().first().getAbsoluteError().getPlusMinus();
                            } catch (HDException e) {
                                    //
                                }
                            }
                            row.setAttribute("yerr", yerr);
                        }
                        s.append(row.toString() + "\n");
                    }
                    s.append("END HISTO1D " + "\n\n\n");
                }
            }
            asYODA = s.toString();
        }

        return new TextStreamResponse("text/plain", asYODA);
    }


    public StreamResponse onAIDA() {
        return new TextStreamResponse("text/plain", "This will be AIDA once I get round to it...");
    }


    public StreamResponse onROOT() {
        return new TextStreamResponse("text/plain", "This will be a ROOT macro once I get round to it...");
    }




    public String getQueryParam(String param){
       return _reqGlobals.getRequest().getParameter(param);
    }


    private Query constructQuery() {
        String theIrn = getQueryParam("irn");
        String thePaper = getQueryParam("p");
        String theDataset = getQueryParam("d");

        // Assuming a paper ID search first, falling back to Spires ID search
        Query q = null;
        StringBuffer qs = new StringBuffer("select distinct d from Paper p join p._datasets d where d._localId = :did ");
        if (thePaper != null) {
            qs.append("and p._id = :pid");
            q = _session.createQuery(qs.toString());
            q.setString("pid", thePaper);
        } else if (theIrn != null) {
            qs.append("and p._spiresId = :irn");
            q = _session.createQuery(qs.toString());
            q.setString("irn", theIrn);
        }
        q.setString("did", theDataset);
        return q;
    }


    public Dataset getDataset(){
        Dataset ds = (Dataset) constructQuery().uniqueResult();
        return ds;
    }


}

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