org.nees.repo.chef.servlets
Class FileTransfer

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.nees.repo.chef.servlets.FileTransfer

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class FileTransfer

extends javax.servlet.http.HttpServlet

This servlet allows clients using the CHEF metadata browser teamlet to upload and download files to and from the repository. It acts as an NFMS client to negotiate transfers with the repository. It authenticates to the repository by looking up the credential in the HTTP session. The proxy is placed there by the metadata browser. If there is no proxy there, either the user is a guest or the servlet is running in a non-CHEF host. In this case only guest access is permitted.

See Also:

DatabrowserAction, Serialized Form

Field Summary

static java.lang.String	CANCEL_VERB_ID The "cancel" verb, meaning: "cancel current transfer"
static java.lang.String	CHOOSE_VERB_ID The "choose" verb, meaning: "have the user choose a file to upload"
static java.lang.String	CONFIRM_VERB_ID The "confirm" verb, meaning: "confirm operationg complete"
static java.lang.String	CONTAINER_ID_LOCAL_PART_PARAMETER_ID The ID of the "container ID" parameter, which specifies which container to upload the file to.
static java.lang.String	CONTAINER_ID_NAMESPACE_URI_PARAMETER_ID The ID of the "container ID" parameter, which specifies which container to upload the file to.
protected static int	DIRECTION_DOWNLOAD
protected static int	DIRECTION_UPLOAD
static java.lang.String	DOWNLOAD_VERB_ID The "download" verb, meaning: "attempt to download a file"
static java.lang.String	FILE_TRANSFER_STATE_SESSION_ATTRIBUTE_ID The ID of the session attribute for the transfer state
static java.lang.String	LOGICAL_NAME_LOCAL_PART_PARAMETER_ID The ID of the "logical name" parameter, which specifies the logical name of the file to upload or download.
static java.lang.String	LOGICAL_NAME_NAMESPACE_URI_PARAMETER_ID The namespace URI for the "logical name" parameter
static java.lang.String	NFMS_FACADE_SESSION_ATTRIBUTE_ID The ID of the session attribute for the NFMS facade
static java.lang.String	PROXY_SESSION_ATTRIBUTE_ID The ID of the session attribute for the user's proxy
protected static int	STATUS_FAILED
protected static int	STATUS_IDLE
protected static int	STATUS_IN_PROGRESS
protected static int	STATUS_SUCCEEDED
static java.lang.String	STATUS_VERB_ID The "status" verb, meaning: "check status of transfer"
static java.lang.String	TITLE_PARAMETER_ID The ID of the "title" parameter, which specifies the title of the file to upload.
static java.lang.String	UPLOAD_VERB_ID The "upload" verb, meaning: "attempt to upload a file"
static java.lang.String	VERB_PARAMETER_ID The ID of the action "verb", which has one of a set of predefined values

Constructor Summary

FileTransfer()

Method Summary

void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	setUploadTemplate()

Methods inherited from class javax.servlet.http.HttpServlet

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

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Field Detail

PROXY_SESSION_ATTRIBUTE_ID

public static final java.lang.String PROXY_SESSION_ATTRIBUTE_ID

The ID of the session attribute for the user's proxy

See Also:

Constant Field Values

NFMS_FACADE_SESSION_ATTRIBUTE_ID

public static final java.lang.String NFMS_FACADE_SESSION_ATTRIBUTE_ID

The ID of the session attribute for the NFMS facade

See Also:

Constant Field Values

FILE_TRANSFER_STATE_SESSION_ATTRIBUTE_ID

public static final java.lang.String FILE_TRANSFER_STATE_SESSION_ATTRIBUTE_ID

The ID of the session attribute for the transfer state

See Also:

Constant Field Values

VERB_PARAMETER_ID

public static final java.lang.String VERB_PARAMETER_ID

The ID of the action "verb", which has one of a set of predefined values

See Also:

Constant Field Values

DOWNLOAD_VERB_ID

public static final java.lang.String DOWNLOAD_VERB_ID

The "download" verb, meaning: "attempt to download a file"

See Also:

Constant Field Values

UPLOAD_VERB_ID

public static final java.lang.String UPLOAD_VERB_ID

The "upload" verb, meaning: "attempt to upload a file"

See Also:

Constant Field Values

CHOOSE_VERB_ID

public static final java.lang.String CHOOSE_VERB_ID

The "choose" verb, meaning: "have the user choose a file to upload"

See Also:

Constant Field Values

STATUS_VERB_ID

public static final java.lang.String STATUS_VERB_ID

The "status" verb, meaning: "check status of transfer"

See Also:

Constant Field Values

CANCEL_VERB_ID

public static final java.lang.String CANCEL_VERB_ID

The "cancel" verb, meaning: "cancel current transfer"

See Also:

Constant Field Values

CONFIRM_VERB_ID

public static final java.lang.String CONFIRM_VERB_ID

The "confirm" verb, meaning: "confirm operationg complete"

See Also:

Constant Field Values

LOGICAL_NAME_NAMESPACE_URI_PARAMETER_ID

public static final java.lang.String LOGICAL_NAME_NAMESPACE_URI_PARAMETER_ID

The namespace URI for the "logical name" parameter

See Also:

Constant Field Values

LOGICAL_NAME_LOCAL_PART_PARAMETER_ID

public static final java.lang.String LOGICAL_NAME_LOCAL_PART_PARAMETER_ID

The ID of the "logical name" parameter, which specifies the logical name of the file to upload or download.

See Also:

Constant Field Values

TITLE_PARAMETER_ID

public static final java.lang.String TITLE_PARAMETER_ID

The ID of the "title" parameter, which specifies the title of the file to upload.

See Also:

Constant Field Values

CONTAINER_ID_LOCAL_PART_PARAMETER_ID

public static final java.lang.String CONTAINER_ID_LOCAL_PART_PARAMETER_ID

The ID of the "container ID" parameter, which specifies which container to upload the file to.

See Also:

Constant Field Values

CONTAINER_ID_NAMESPACE_URI_PARAMETER_ID

public static final java.lang.String CONTAINER_ID_NAMESPACE_URI_PARAMETER_ID

The ID of the "container ID" parameter, which specifies which container to upload the file to.

See Also:

Constant Field Values

STATUS_IDLE

protected static final int STATUS_IDLE

See Also:

Constant Field Values

STATUS_IN_PROGRESS

protected static final int STATUS_IN_PROGRESS

See Also:

Constant Field Values

STATUS_SUCCEEDED

protected static final int STATUS_SUCCEEDED

See Also:

Constant Field Values

STATUS_FAILED

protected static final int STATUS_FAILED

See Also:

Constant Field Values

DIRECTION_UPLOAD

protected static final int DIRECTION_UPLOAD

See Also:

Constant Field Values

DIRECTION_DOWNLOAD

protected static final int DIRECTION_DOWNLOAD

See Also:

Constant Field Values

Constructor Detail

FileTransfer

public FileTransfer()

Method Detail

doGet

public void doGet(javax.servlet.http.HttpServletRequest req,
                  javax.servlet.http.HttpServletResponse resp)
           throws javax.servlet.ServletException,
                  java.io.IOException

Throws:

javax.servlet.ServletException

java.io.IOException

doPost

public void doPost(javax.servlet.http.HttpServletRequest req,
                   javax.servlet.http.HttpServletResponse resp)
            throws javax.servlet.ServletException,
                   java.io.IOException

Throws:

javax.servlet.ServletException

java.io.IOException

setUploadTemplate

public void setUploadTemplate()