AbstractController.java

package controllers;

import java.util.Map;

import play.mvc.Controller;

public class AbstractController extends Controller {
	
	protected static String getQueryParam(String name) {
		String[] value = request().queryString().get(name);
		if (value == null)
			return null;
		
		if (value.length == 0)
			return null;
		
		return value[0];
	}
	
	protected static int getQueryParamAsInt(String name, int defaultValue) {
		String[] param = request().queryString().get(name);
		if (param == null)
			return defaultValue;
		
		if (param.length < 1)
			return defaultValue;
		
		try {
			return Integer.parseInt(param[0]);
		} catch (Throwable t) {
			return defaultValue;
		}
	}
	
	protected static double getQueryParamAsDouble(String name, double defaultValue) {
		String[] param = request().queryString().get(name);
		if (param == null)
			return defaultValue;
		
		if (param.length < 1)
			return defaultValue;
		
		try {
			return Double.parseDouble(param[0]);
		} catch (Throwable t) {
			return defaultValue;
		}
	}
	
	protected static String getFormParam(String name) {
		Map<String, String[]> formParams = request().body().asFormUrlEncoded();
		if (formParams == null)
			return null;
		
		String[] values = formParams.get(name);
		if (values == null)
			return null;
		
		if (values.length < 1)
			return null;
		
		return values[0];
	}
	
}