playn.html.HtmlNet.java Source code

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Here is the source code for playn.html.HtmlNet.java

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/**
 * Copyright 2010 The PlayN Authors
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package playn.html;

import com.google.gwt.xhr.client.ReadyStateChangeHandler;
import com.google.gwt.xhr.client.XMLHttpRequest;

import playn.core.Net;
import playn.core.util.Callback;

public class HtmlNet implements Net {

    @Override
    public WebSocket createWebSocket(String url, WebSocket.Listener listener) {
        return new HtmlWebSocket(url, listener);
    }

    public void get(String url, final Callback<String> callback) {
        try {
            XMLHttpRequest xhr = XMLHttpRequest.create();
            xhr.open("GET", url);
            xhr.setOnReadyStateChange(new ReadyStateChangeHandler() {
                @Override
                public void onReadyStateChange(XMLHttpRequest xhr) {
                    if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                        if (xhr.getStatus() >= 400) {
                            callback.onFailure(new RuntimeException("Bad HTTP status code: " + xhr.getStatus()));
                        } else {
                            callback.onSuccess(xhr.getResponseText());
                        }
                    }
                }
            });
            xhr.send();
        } catch (Exception e) {
            callback.onFailure(e);
        }
    }

    @Override
    public void post(String url, String data, final Callback<String> callback) {
        try {
            XMLHttpRequest xhr = XMLHttpRequest.create();
            xhr.open("POST", url);
            xhr.setOnReadyStateChange(new ReadyStateChangeHandler() {
                @Override
                public void onReadyStateChange(XMLHttpRequest xhr) {
                    if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                        if (xhr.getStatus() >= 400) {
                            callback.onFailure(new RuntimeException("Bad HTTP status code: " + xhr.getStatus()));
                        } else {
                            callback.onSuccess(xhr.getResponseText());
                        }
                    }
                }
            });
            xhr.send(data);
        } catch (Exception e) {
            callback.onFailure(e);
        }
    }
}