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package sk.seges.acris.rpc;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;

import com.google.gwt.user.server.rpc.RPCServletUtils;
import com.google.gwt.user.server.rpc.SerializationPolicy;

/**
 * Enhanced GWTRPCServiceExporter except it doesn't use default serialization
 * policy loading mechanism but custom serialization policy class.
 * 
 * @author eldzi
 */
public class CustomPolicyRPCServiceExporter extends GWTRPCServiceExporter implements ICustomSerializationPolicyServiceExporter {
	private static final long serialVersionUID = 794254705092767867L;
	private ICustomSerializationPolicy policy;

	@Override
	protected SerializationPolicy doGetSerializationPolicy(
			HttpServletRequest request, String moduleBaseURL, String strongName) {
		SerializationPolicy sPolicy = policy.doGetSerializationPolicy(getServletContext(), request, moduleBaseURL, strongName);
		return sPolicy;
	}

	@Override
	public void setSerializationPolicy(ICustomSerializationPolicy policy) {
		this.policy = policy;
	}

	@Override
	protected String readContent(HttpServletRequest request)
			throws ServletException, IOException {

		if (request.getMethod() != null && request.getMethod().toLowerCase().equals("get")) {
			return request.getQueryString();
		}
		return RPCServletUtils.readContentAsGwtRpc(request);
	}

}