gwt.g3d.resources.client.impl.AbstractExternalMeshResource.java Source code

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Here is the source code for gwt.g3d.resources.client.impl.AbstractExternalMeshResource.java

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/*
 * Copyright 2009 Hao Nguyen
 * 
 * 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 gwt.g3d.resources.client.impl;

import gwt.g3d.resources.client.ExternalMeshResource;
import gwt.g3d.resources.client.MeshResource;
import gwt.g3d.resources.client.Texture2DResource;

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.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.resources.client.ResourceCallback;
import com.google.gwt.resources.client.ResourceException;

/**
 * Abstract implementation of {@link Texture2DResource}
 * 
 * @author hao1300@gmail.com
 */
public abstract class AbstractExternalMeshResource implements ExternalMeshResource {

    /**
     * Helper method for loading a mesh.
     * 
     * @param externalImageResource
     * @param textureResource
     */
    protected void getMesh(String url, final MeshDataInfo meshDataInfo,
            final ResourceCallback<MeshResource> callback) {
        RequestBuilder request = new RequestBuilder(RequestBuilder.POST, url);
        request.setCallback(new RequestCallback() {
            @Override
            public void onResponseReceived(Request request, Response response) {
                callback.onSuccess(new AbstractMeshResource(meshDataInfo, JSONParser.parse(response.getText())) {
                    @Override
                    public String getName() {
                        return AbstractExternalMeshResource.this.getName();
                    }
                });
            }

            @Override
            public void onError(Request request, Throwable exception) {
                callback.onError(new ResourceException(AbstractExternalMeshResource.this, exception.getMessage()));
            }
        });
        try {
            request.send();
        } catch (RequestException e) {
            callback.onError(new ResourceException(AbstractExternalMeshResource.this, e.getMessage()));
        }
    }
}