org.apache.hadoop.dfs
Class JspHelper

java.lang.Object
  org.apache.hadoop.dfs.JspHelper

public class JspHelper
extends Object

Field Summary

static Configuration	conf
static String	WEB_UGI_PROPERTY_NAME
static UnixUserGroupInformation	webUGI

Constructor Summary

JspHelper()

Method Summary

void	addTableFooter(javax.servlet.jsp.JspWriter out)
void	addTableHeader(javax.servlet.jsp.JspWriter out)
void	addTableRow(javax.servlet.jsp.JspWriter out, String[] columns)
void	addTableRow(javax.servlet.jsp.JspWriter out, String[] columns, int row)
DatanodeInfo	bestNode(org.apache.hadoop.dfs.LocatedBlock blk)
static void	createTitle(javax.servlet.jsp.JspWriter out, javax.servlet.http.HttpServletRequest req, String file)
void	DFSNodesStatus(ArrayList<DatanodeDescriptor> live, ArrayList<DatanodeDescriptor> dead)
String	getInodeLimitText()
String	getSafeModeText()
String	getUpgradeStatusText()
static String	percentageGraph(float perc, int width)
static String	percentageGraph(int perc, int width)
static void	printGotoForm(javax.servlet.jsp.JspWriter out, int namenodeInfoPort, String file)
static void	printPathWithLinks(String dir, javax.servlet.jsp.JspWriter out, int namenodeInfoPort)
DatanodeID	randomNode()
void	sortNodeList(ArrayList<DatanodeDescriptor> nodes, String field, String order)
void	streamBlockInAscii(InetSocketAddress addr, long blockId, long genStamp, long blockSize, long offsetIntoBlock, long chunkSizeToView, javax.servlet.jsp.JspWriter out)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

WEB_UGI_PROPERTY_NAME

public static final String WEB_UGI_PROPERTY_NAME

See Also:

Constant Field Values

conf

public static Configuration conf

webUGI

public static final UnixUserGroupInformation webUGI

Constructor Detail

JspHelper

public JspHelper()

Method Detail

randomNode

public DatanodeID randomNode()
                      throws IOException

Throws:

IOException

bestNode

public DatanodeInfo bestNode(org.apache.hadoop.dfs.LocatedBlock blk)
                      throws IOException

Throws:

IOException

streamBlockInAscii

public void streamBlockInAscii(InetSocketAddress addr,
                               long blockId,
                               long genStamp,
                               long blockSize,
                               long offsetIntoBlock,
                               long chunkSizeToView,
                               javax.servlet.jsp.JspWriter out)
                        throws IOException

Throws:

IOException

DFSNodesStatus

public void DFSNodesStatus(ArrayList<DatanodeDescriptor> live,
                           ArrayList<DatanodeDescriptor> dead)

addTableHeader

public void addTableHeader(javax.servlet.jsp.JspWriter out)
                    throws IOException

Throws:

IOException

addTableRow

public void addTableRow(javax.servlet.jsp.JspWriter out,
                        String[] columns)
                 throws IOException

Throws:

IOException

addTableRow

public void addTableRow(javax.servlet.jsp.JspWriter out,
                        String[] columns,
                        int row)
                 throws IOException

Throws:

IOException

addTableFooter

public void addTableFooter(javax.servlet.jsp.JspWriter out)
                    throws IOException

Throws:

IOException

getSafeModeText

public String getSafeModeText()

getInodeLimitText

public String getInodeLimitText()

getUpgradeStatusText

public String getUpgradeStatusText()

sortNodeList

public void sortNodeList(ArrayList<DatanodeDescriptor> nodes,
                         String field,
                         String order)

printPathWithLinks

public static void printPathWithLinks(String dir,
                                      javax.servlet.jsp.JspWriter out,
                                      int namenodeInfoPort)
                               throws IOException

Throws:

IOException

printGotoForm

public static void printGotoForm(javax.servlet.jsp.JspWriter out,
                                 int namenodeInfoPort,
                                 String file)
                          throws IOException

Throws:

IOException

createTitle

public static void createTitle(javax.servlet.jsp.JspWriter out,
                               javax.servlet.http.HttpServletRequest req,
                               String file)
                        throws IOException

Throws:

IOException

percentageGraph

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

Throws:

IOException

percentageGraph

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

Throws:

IOException