com.emitrom.ti4j.mobile.rpc.client.requestfactory.Ti4jMobileDefaultRequestTransport.java Source code

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Here is the source code for com.emitrom.ti4j.mobile.rpc.client.requestfactory.Ti4jMobileDefaultRequestTransport.java

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/************************************************************************
 * Ti4jMobileDefaultRequestTransport.java is part of Ti4j 3.1.0 Copyright 2013
 * Emitrom LLC
 * 
 * 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 com.emitrom.ti4j.mobile.rpc.client.requestfactory;

import static com.google.gwt.user.client.rpc.RpcRequestBuilder.STRONG_NAME_HEADER;

import com.emitrom.ti4j.mobile.client.platform.Platform;
import com.google.gwt.core.client.GWT;
import com.google.gwt.http.client.RequestBuilder;
import com.google.web.bindery.requestfactory.gwt.client.DefaultRequestTransport;
import com.google.web.bindery.requestfactory.shared.RequestFactory;

/**
 * RequestTransport implementation to use with Titanium4j Mobile. This class
 * overrides the 'pagerul' header and sets the entry point of the internal
 * RequestBuilder to 'http://127.0.0.1:8888/' for iOS and
 * 'http://10.0.2.2:8888/' for Android. <br/>
 * <p>
 * You should extends this class and override the getHost method.
 * 
 */
public class Ti4jMobileDefaultRequestTransport extends DefaultRequestTransport {

    /**
     * convenient method to create an instance of
     * TiMobileDefaultRequestTransport
     * 
     * @return an instance of TiMobileDefaultRequestTransport
     */
    public static Ti4jMobileDefaultRequestTransport create() {
        return new Ti4jMobileDefaultRequestTransport();
    }

    /**
     * Override to change the headers sent in the HTTP request.
     * 
     * @param builder
     *            a {@link RequestBuilder} instance
     */
    protected void configureRequestBuilder(RequestBuilder builder) {
        builder.setHeader("Content-Type", RequestFactory.JSON_CONTENT_TYPE_UTF8);
        builder.setHeader("pageurl", getHost());
        builder.setHeader(STRONG_NAME_HEADER, GWT.getPermutationStrongName());
    }

    /**
     * Constructs a {@link RequestBuilder} using the {@link RequestBuilder#POST}
     * method sent to the URL returned from {@link #getRequestUrl()}.
     * 
     * @return a {@link RequestBuilder} instance
     */
    protected RequestBuilder createRequestBuilder() {
        return new RequestBuilder(RequestBuilder.POST, getHost() + URL);
    }

    /**
     * Returns the host from where the request is made.
     * 
     * @return
     */
    protected String getHost() {
        String host = "http://127.0.0.1:8888/";
        if (Platform.get().isAndroid()) {
            host = "http://10.0.2.2:8888/";
        }
        return host;
    }

}