<source lang = java>
/*
* Copyright: (c) 2004-2009 Mayo Foundation for Medical Education and
* Research (MFMER). All rights reserved. MAYO, MAYO CLINIC, and the
* triple-shield Mayo logo are trademarks and service marks of MFMER.
*
* Except as contained in the copyright notice above, or as used to identify
* MFMER as the author of this software, the trade names, trademarks, service
* marks, or product names of the copyright holder shall not be used in
* advertising, promotion or otherwise in connection with this software without
* prior written authorization of the copyright holder.
*
* Licensed under the Eclipse Public License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.eclipse.org/legal/epl-v10.html
*
*/
package org.LexGrid.LexBIG.example;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Formatter;
import java.util.List;
import org.LexGrid.LexBIG.DataModel.Collections.CodingSchemeRenderingList;
import org.LexGrid.LexBIG.DataModel.Core.CodingSchemeSummary;
import org.LexGrid.LexBIG.DataModel.InterfaceElements.CodingSchemeRendering;
import org.LexGrid.LexBIG.Exceptions.LBException;
import org.LexGrid.LexBIG.Impl.LexBIGServiceImpl;
import org.LexGrid.LexBIG.LexBIGService.LexBIGService;
/**
* Helper class used to display a list of available code systems and return the
* user selection.
*
*/
public class CodingSchemeSelectionMenu {
static final String Dash5 = "-----";
static final String Dash15 = "---------------";
static final String Dash25 = "-------------------------";
static final String Dash30 = "------------------------------";
public CodingSchemeSelectionMenu() {
super();
}
/**
* Displays a list of available coding schemes.
*
* @return The ordered list of coding scheme summaries as displayed.
* @throws LBException
* If an error occurs displaying the list.
*/
protected List<CodingSchemeSummary> displayCodingSchemes() throws LBException {
List<CodingSchemeSummary> choices = new ArrayList<CodingSchemeSummary>();
LexBIGService lbs = LexBIGServiceImpl.defaultInstance();
CodingSchemeRenderingList schemes = lbs.getSupportedCodingSchemes();
if (schemes.getCodingSchemeRenderingCount() == 0)
Util.displayMessage("No coding schemes found.");
else {
Formatter f = new Formatter();
String format = "%-5.5s|%-30.30s|%-25.25s|%-15.15s\n";
Object[] hSep = new Object[] { Dash5, Dash30, Dash25, Dash15 };
f.format(format, hSep);
f.format(format, new Object[] { "#", "Local Name", "Version", "Tag" });
f.format(format, hSep);
CodingSchemeRendering[] csr = schemes.getCodingSchemeRendering();
for (int i = 1; i <= csr.length; i++) {
String nu = String.valueOf(i);
CodingSchemeSummary css = csr[i - 1].getCodingSchemeSummary();
choices.add(css);
// Evaluate local name
String localName = css.getLocalName();
if (localName != null && localName.length() > 30)
localName = localName.substring(0, 28) + ">>";
// Evaluate version
String version = css.getRepresentsVersion();
if (version != null && version.length() > 25)
version = version.substring(0, 23) + ">>";
// Evaluate tag(s)
String[] tags = csr[i - 1].getRenderingDetail().getVersionTags().getTag();
String tag = tags.length > 0 ? tags[0] : "";
if (tag != null && tag.length() > 15)
tag = tag.substring(0, 13) + ">>";
// Output the first line
f.format(format, new Object[] { nu, localName, version, tag });
// Output additional tags
for (int j = 1; j < tags.length; j++) {
tag = tags[j];
if (tag != null && tag.length() > 10)
tag = tag.substring(0, 8) + ">>";
f.format(format, "", "", "", tag);
}
// Output separator
f.format(format, hSep);
}
Util.displayMessage(f.out().toString());
Util.displayMessage("");
Util.displayMessage("NOTE: >> indicates column value exceeds the available width.");
}
return choices;
}
/**
* Display the list of available coding schemes and process the user
* selection.
*
* @return A coding scheme summary correponding to the user selection; null
* if no selection is made or an error occurs.
*/
public CodingSchemeSummary displayAndGetSelection() {
CodingSchemeSummary css = null;
try {
// Display choices ...
List<CodingSchemeSummary> choices = displayCodingSchemes();
if (choices.size() > 0) {
// Process the user input ...
try {
Util.displayMessage("Enter the number of the Coding scheme to use, then <Enter> :");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int i = new Integer(br.readLine()).intValue();
if (i > 0 && i <= choices.size())
css = choices.get(i - 1);
else
Util.displayMessage("Entered value is out of range.");
} catch (NumberFormatException nfe) {
Util.displayMessage("Entered value must be numeric.");
} catch (IOException ioe) {
Util.displayAndLogError("An error occurred while processing the entered value", ioe);
}
} else {
Util.displayMessage("No code systems are available.");
}
} catch (Exception e) {
Util.displayAndLogError("An error occurred processing the available code systems", e);
}
return css;
}
}
</source>
