org.apache.hadoop.hdfs.server.namenode

类 StreamFile

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.apache.hadoop.hdfs.server.namenode.StreamFile

所有已实现的接口:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class StreamFile
extends javax.servlet.http.HttpServlet

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
static String	CONTENT_LENGTH

构造器概要

构造器

构造器和说明
StreamFile()

方法概要

方法

限定符和类型	方法和说明
protected ClientProtocol	createNameNodeProxy() Create a NameNode proxy from the current ServletContext.
protected URI	createRedirectUri(String servletpath, UserGroupInformation ugi, DatanodeID host, javax.servlet.http.HttpServletRequest request, String tokenString) Create a URI for redirecting request
void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
protected DFSClient	getDFSClient(javax.servlet.http.HttpServletRequest request) getting a client for connecting to dfs
protected String	getFilename(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Get filename from the request
protected UserGroupInformation	getUGI(javax.servlet.http.HttpServletRequest request, Configuration conf) Get UserGroupInformation from request * @throws IOException
protected void	writeXml(Exception except, String path, org.znerd.xmlenc.XMLOutputter doc) Write the object to XML format

从类继承的方法 javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

从类继承的方法 javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

从类继承的方法 java.lang.Object

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

字段详细资料

CONTENT_LENGTH

public static final String CONTENT_LENGTH

另请参阅:

常量字段值

构造器详细资料

StreamFile

public StreamFile()

方法详细资料

getDFSClient

protected DFSClient getDFSClient(javax.servlet.http.HttpServletRequest request)
                          throws IOException,
                                 InterruptedException

getting a client for connecting to dfs

抛出:

IOException

InterruptedException

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
         javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException,
                  IOException

覆盖:

doGet 在类中 javax.servlet.http.HttpServlet

抛出:

javax.servlet.ServletException

IOException

writeXml

protected void writeXml(Exception except,
            String path,
            org.znerd.xmlenc.XMLOutputter doc)
                 throws IOException

Write the object to XML format

抛出:

IOException

getUGI

protected UserGroupInformation getUGI(javax.servlet.http.HttpServletRequest request,
                          Configuration conf)
                               throws IOException

Get UserGroupInformation from request * @throws IOException

抛出:

IOException

createNameNodeProxy

protected ClientProtocol createNameNodeProxy()
                                      throws IOException

Create a NameNode proxy from the current ServletContext.

抛出:

IOException

createRedirectUri

protected URI createRedirectUri(String servletpath,
                    UserGroupInformation ugi,
                    DatanodeID host,
                    javax.servlet.http.HttpServletRequest request,
                    String tokenString)
                         throws URISyntaxException

Create a URI for redirecting request

抛出:

URISyntaxException

getFilename

protected String getFilename(javax.servlet.http.HttpServletRequest request,
                 javax.servlet.http.HttpServletResponse response)
                      throws IOException

Get filename from the request

抛出:

IOException