/*
* DefaultRequestWrapper.java criado em 27/09/2011
*
* Propriedade de Objectos Fábrica de Software LTDA.
* Reprodução parcial ou total proibida.
*/
package br.com.objectos.comuns.sitebricks;
import java.text.DecimalFormat;
import java.text.ParseException;
import org.joda.time.LocalDate;
import br.com.objectos.comuns.base.text.DecimalFormats;
import br.com.objectos.comuns.matematica.financeira.Percentual;
import br.com.objectos.comuns.relational.search.Page;
import br.com.objectos.comuns.relational.search.SimplePage;
import br.com.objectos.comuns.sitebricks.relational.SearchString;
import com.google.common.base.Strings;
import com.google.sitebricks.headless.Request;
/**
* @author marcio.endo@objectos.com.br (Marcio Endo)
*/
public class DefaultRequestWrapper implements RequestWrapper {
private final DecimalFormat doubleFormat = DecimalFormats.newCurrencyWithLocale("pt");
private final Request req;
public DefaultRequestWrapper(Request req) {
this.req = req;
}
@Override
public String param(String param) {
return req.param(param);
}
@Override
public boolean booleanParam(String param) {
String value = req.param(param);
return value != null;
}
@Override
public <E extends Enum<E>> E enumParam(Class<E> enumClass, String param) {
E res = null;
String value = req.param(param);
if (value != null) {
try {
res = Enum.valueOf(enumClass, value);
} catch (IllegalArgumentException e) {
}
}
return res;
}
@Override
public LocalDate localDateParam(String param) {
return localDateParam(LocalDateFormat.ISO, param);
}
@Override
public LocalDate localDateParam(LocalDateFormat format, String param) {
String value = req.param(param);
return format.parse(value);
}
@Override
public Double doubleParam(String param) {
try {
String value = req.param(param);
return Double.valueOf(value);
} catch (NullPointerException e) {
return null;
} catch (NumberFormatException e) {
return null;
}
}
@Override
public Integer integerParam(String param) {
try {
String value = req.param(param);
return Integer.valueOf(value);
} catch (NullPointerException e) {
return null;
} catch (NumberFormatException e) {
return null;
}
}
@Override
public Long longParam(String param) {
try {
String value = req.param(param);
return Long.valueOf(value);
} catch (NullPointerException e) {
return null;
} catch (NumberFormatException e) {
return null;
}
}
@Override
public Percentual percentualParam(String key) {
Percentual percentual = null;
String text = param(key);
if (!Strings.isNullOrEmpty(text)) {
try {
double doubleValue = parseDouble(text);
percentual = new Percentual(doubleValue / 100d);
} catch (ParseException e) {
}
}
return percentual;
}
@Override
public Page getPage() {
int pageNumber = parsePage();
int size = getPageSize();
int start = pageNumber * size;
return SimplePage.build().startAt(start).withLengthOf(size).get();
}
@Override
public SearchString getSearchString(String param) {
String string = param(param);
return new SearchString(string);
}
protected Integer getPageParam() {
return integerParam("page");
}
protected int getPageSize() {
return 100;
}
private int parsePage() {
Integer page = getPageParam();
return page != null ? page.intValue() : 0;
}
protected double parseDouble(String text) throws ParseException {
Number number = doubleFormat.parse(text);
return number.doubleValue();
}
}