edu.ucdenver.bios.glimmpseweb.client.connector.MatrixSvcConnector.java Source code

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Here is the source code for edu.ucdenver.bios.glimmpseweb.client.connector.MatrixSvcConnector.java

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/*
 * User Interface for the GLIMMPSE Software System.  Allows
 * users to perform power, sample size, and detectable difference
 * calculations. 
 * 
 * Copyright (C) 2010 Regents of the University of Colorado.  
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package edu.ucdenver.bios.glimmpseweb.client.connector;

import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;

import edu.ucdenver.bios.glimmpseweb.client.GlimmpseWeb;
import edu.ucdenver.bios.webservice.common.domain.NamedMatrix;

/**
 * Connector class to the matrix service to perform linear algebra
 * operations.
 * @author VIJAY AKULA
 *
 */
public class MatrixSvcConnector {

    private static final String MEDIA_TYPE = "application/json";

    // JSON encoder/decoder class
    private static final DomainObjectSerializer serializer = DomainObjectSerializer.getInstance();

    public MatrixSvcConnector() {
    }

    public void getRank(NamedMatrix matrix, RequestCallback callback) throws RequestException {
        String entity = serializer.toJSON(matrix);
        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST,
                GlimmpseWeb.constants.matrixSvcHostMatrices());

        builder.setHeader("Content-Type", MEDIA_TYPE);
        builder.setHeader("Accept", MEDIA_TYPE);
        builder.sendRequest(entity, callback);
    }

    public void getIsPositiveDefinite(NamedMatrix matrix, RequestCallback callback) throws RequestException {
        String entity = serializer.toJSON(matrix);
        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST,
                GlimmpseWeb.constants.matrixSvcHostMatrices());
        builder.setHeader("Content-Type", MEDIA_TYPE);
        builder.setHeader("Accept", MEDIA_TYPE);
        builder.sendRequest(entity, callback);
    }

}