org.gss_project.gss.web.client.rest.PostCommand.java Source code

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Here is the source code for org.gss_project.gss.web.client.rest.PostCommand.java

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/*
 * Copyright 2009 Electronic Business Systems Ltd.
 *
 * This file is part of GSS.
 *
 * GSS 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 3 of the License, or
 * (at your option) any later version.
 *
 * GSS 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 GSS.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.gss_project.gss.web.client.rest;

import org.gss_project.gss.web.client.GSS;

import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.Response;

/**
 * @author kman
 *
 */
public abstract class PostCommand extends RestCommand {
    boolean complete = false;
    String postBody = null;

    public PostCommand(final String path, String data, final int okStatusCode) {
        this(path, data, okStatusCode, true);
    }

    public PostCommand(final String path, String data, final int okStatusCode, boolean showLoading) {
        setShowLoadingIndicator(showLoading);
        if (isShowLoadingIndicator())
            GSS.get().showLoadingIndicator("Updating ", path);

        RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, path);

        try {
            handleHeaders(builder, path);
            builder.sendRequest(data, new RequestCallback() {

                @Override
                public void onError(Request arg0, Throwable arg1) {
                    complete = true;
                    PostCommand.this.onError(arg1);
                }

                @Override
                public void onResponseReceived(Request req, Response resp) {
                    complete = true;
                    int status = resp.getStatusCode();
                    // Normalize IE status 1223 to a regular 204.
                    if (status == 1223)
                        status = 204;

                    if (status == okStatusCode) {
                        postBody = resp.getText();
                        onComplete();
                    } else if (status == 403)
                        sessionExpired();
                    else
                        PostCommand.this
                                .onError(new RestException(path, status, resp.getStatusText(), resp.getText()));
                }

            });
        } catch (Exception ex) {
            complete = true;
            onError(ex);
        }
    }

    public boolean isComplete() {
        return complete;
    }

    @Override
    public boolean execute() {
        boolean com = isComplete();
        if (com) {
            if (isShowLoadingIndicator())
                GSS.get().hideLoadingIndicator();
            return false;
        }
        return true;
    }

    public String getPostBody() {
        return postBody;
    }

}