ServerConnectionMock.java

/*
 * Copyright 2014 Grow Bit
 *
 * 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 org.turbogwt.net.http.client.mock;

import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestCallbackWithProgress;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.RequestProgress;
import com.google.gwt.http.client.Response;

import org.turbogwt.net.http.client.Headers;
import org.turbogwt.net.http.client.ServerConnection;

/**
 * A mock of {@link ServerConnection}.
 *
 * You should add expected {@link Response}s to the underlying server stub with #responseFor
 * in order to mock responses from server.
 *
 * @author Danilo Reinert
 */
public class ServerConnectionMock implements ServerConnection {

    private static final RequestProgress REQUEST_PROGRESS = new RequestProgress() {
        @Override
        public boolean isLengthComputable() {
            return false;
        }

        @Override
        public Number loaded() {
            return null;
        }

        @Override
        public Number total() {
            return null;
        }
    };

    private static String uri;
    private static RequestCallbackWithProgress requestCallback;

    static void triggerPendingRequest() {
        requestCallback.onProgress(REQUEST_PROGRESS);
        if (ServerStub.isReturnSuccess()) {
            requestCallback.onResponseReceived(null, ServerStub.getResponseFor(uri));
        } else {
            requestCallback.onError(null, new RequestException("This is a mock exception."));
        }

        uri = null;
        requestCallback = null;
    }

    @Override
    public void sendRequest(RequestBuilder.Method method, String url, String data, RequestCallback callback)
            throws RequestException {
        ServerStub.setRequestData(url, new RequestMock(method, url, data));
        uri = url;
        requestCallback = (RequestCallbackWithProgress) callback;
    }

    @Override
    public void sendRequest(int timeout, String user, String password, Headers headers, RequestBuilder.Method method,
                            String url, String data, RequestCallback callback) throws RequestException {
        ServerStub.setRequestData(url, new RequestMock(method, url, data, headers));
        uri = url;
        requestCallback = (RequestCallbackWithProgress) callback;
    }
}