Human File Size
jeesl:humanFileSize(sizeInLong) is a function that convert long value of file size to readable file size like 1kb, 2mb or 1gb.
| Long | Text |
|---|---|
| 7 | 7 B |
| 40 | 40 B |
| 933 | 933 B |
| 3374 | 3.4 kB |
| 54515 | 54.5 kB |
| 745078 | 745.1 kB |
| 9778941 | 9.8 MB |
| 79799190 | 79.8 MB |
| 986959007 | 987.0 MB |
| 695593186 | 695.6 MB |
<p:dataTable var="l" value="#{humanFileSizeBean.list}" styleClass="jeesl-datatable">
<p:column headerText="Long">
<h:outputText value="#{l}"/>
</p:column>
<p:column headerText="Text">
<h:outputText value="#{jeesl:humanFileSize(l)}"/>
</p:column>
</p:dataTable>
@Named @ViewScoped
public class HumanFileSizeBean extends AbstractJeeBean implements Serializable
{
final static Logger logger = LoggerFactory.getLogger(HumanFileSizeBean.class);
private static final long serialVersionUID = 1L;
private List<Long> list;
public List<Long> getList(){return list;}
@PostConstruct
public void init()
{
super.initSecurity();
showcase();
}
private void showcase()
{
Random rnd = new Random();
list = new ArrayList<>();
for(int i=1;i<=10;i++)
{
int pow = (int)Math.pow(10,i);
list.add(Integer.valueOf(rnd.nextInt(pow)).longValue());
}
}
}