/*
 * Copyright (c) 2015 EMC Corporation
 * All Rights Reserved
 */
package controllers.api;

import controllers.Common;
import play.Logger;
import play.mvc.Controller;
import play.mvc.With;
import plugin.ApiModelPlugin;
import javax.xml.bind.SchemaOutputResolver;
import javax.xml.transform.Result;
import javax.xml.transform.stream.StreamResult;
import java.io.IOException;
import java.io.StringWriter;

/**
 * API to retrieve schemas for the API.
 * 
 * @author Chris Dail
 */
@With(Common.class)
public class SchemaApi extends Controller {
    public static void schema() throws IOException {
        final StringWriter writer = new StringWriter();

        ApiModelPlugin.getInstance().getCtx().generateSchema(new SchemaOutputResolver() {
            public Result createOutput(String namespaceUri, String filename) throws IOException {
                Logger.debug("Generating API Schemas %s", filename);
                StreamResult result = new StreamResult(writer);
                result.setSystemId("schema.xsd");
                return result;
            }
        });
        renderXml(writer.toString());
    }
}