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## org.apache.hadoop.util
Class ServletUtil

    java.lang.Object
      org.apache.hadoop.util.ServletUtil

    public class ServletUtil

extends Object

Field Summary
`static String` | `HTML_TAIL`

Constructor Summary
`ServletUtil()`

Method Summary
`static String` | `getParameter(javax.servlet.ServletRequest request, String name)` Get a parameter from a ServletRequest.
`static String` | `htmlFooter()` HTML footer to be added in the jsps.
`static PrintWriter` | `initHTML(javax.servlet.ServletResponse response, String title)` Initial HTML header
`static String` | `percentageGraph(float perc, int width)` Generate the percentage graph and returns HTML representation string of the same.
`static String` | `percentageGraph(int perc, int width)` Generate the percentage graph and returns HTML representation string of the same.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### HTML_TAIL

    public static final String HTML_TAIL

Constructor Detail

### ServletUtil

    public ServletUtil()

Method Detail

### initHTML

    public static PrintWriter initHTML(javax.servlet.ServletResponse response,
                                       String title)
                                throws IOException

  Initial HTML header

  Throws:
    `IOException`

### getParameter

    public static String getParameter(javax.servlet.ServletRequest request,
                                      String name)

  Get a parameter from a ServletRequest. Return null if the parameter contains only white spaces.

### htmlFooter

    public static String htmlFooter()

  HTML footer to be added in the jsps.

  Returns:
    the HTML footer.

### percentageGraph

    public static String percentageGraph(int perc,
                                         int width)
                                  throws IOException

  Generate the percentage graph and returns HTML representation string of the same.

  Parameters:
    `perc` - The percentage value for which graph is to be generated
    `width` - The width of the display table
  Returns:
    HTML String representation of the percentage graph
  Throws:
    `IOException`

### percentageGraph

    public static String percentageGraph(float perc,
                                         int width)
                                  throws IOException

  Generate the percentage graph and returns HTML representation string of the same.

  Parameters:
    `perc` - The percentage value for which graph is to be generated
    `width` - The width of the display table
  Returns:
    HTML String representation of the percentage graph
  Throws:
    `IOException`

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Copyright © 2009 The Apache Software Foundation