com.tdm.client.dispatch.handler.GetProblemByIdHandler.java Source code

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Here is the source code for com.tdm.client.dispatch.handler.GetProblemByIdHandler.java

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/**
 * Copyright 2011 Pawe Doleciski.
 *
 * 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.tdm.client.dispatch.handler;

import java.util.HashMap;

import com.google.gwt.core.client.JsonUtils;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.Response;
import com.tdm.client.dispatch.AbstractRequestBuilderClientActionHandler;
import com.tdm.client.dispatch.command.GetProblemByIdAction;
import com.tdm.client.dispatch.command.GetProblemByIdResult;
import com.tdm.domain.model.problem.dto.ProblemJSO;

/**
 * @author Pawe Doleciski
 * 
 */
public class GetProblemByIdHandler
        extends AbstractRequestBuilderClientActionHandler<GetProblemByIdAction, GetProblemByIdResult> {

    private static final String[] restResourcePath = { "problems", "{problemId}" };

    protected GetProblemByIdHandler() {
        super(GetProblemByIdAction.class);
    }

    @Override
    protected GetProblemByIdResult extractResult(final Response response) {
        ProblemJSO problem = JsonUtils.safeEval(response.getText());
        return new GetProblemByIdResult(problem);
    }

    @Override
    protected RequestBuilder getRequestBuilder(final GetProblemByIdAction action) {

        restResourcePath[1] = action.getProblemId();
        HashMap<String, String> hashMap = new HashMap<String, String>();
        if (action.isJoin()) {
            hashMap.put("join", "true");
        }
        return prepareRequestBuilder(RequestBuilder.GET, restResourcePath, hashMap);

    }

}