AbstractWebdavServlet (Apache Jackrabbit 2.20.16 API)

java.lang.Object
- javax.servlet.GenericServlet
- - javax.servlet.http.HttpServlet
  - - org.apache.jackrabbit.webdav.server.AbstractWebdavServlet

All Implemented Interfaces:

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

Direct Known Subclasses:

JCRWebdavServerServlet, SimpleWebdavServlet
```
public abstract class AbstractWebdavServlet
extends javax.servlet.http.HttpServlet
implements DavConstants
```
AbstractWebdavServlet

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`DEFAULT_AUTHENTICATE_HEADER` Default value for the 'WWW-Authenticate' header, that is set, if request results in a `401 (Unauthorized)` error.
`static String`	`INIT_PARAM_AUTHENTICATE_HEADER` Name of the optional init parameter that defines the value of the 'WWW-Authenticate' header.
`static String`	`INIT_PARAM_CREATE_ABSOLUTE_URI` Name of the 'createAbsoluteURI' init parameter that defines whether hrefs should be created with a absolute URI or as absolute Path (ContextPath).
`static String`	`INIT_PARAM_CSRF_PROTECTION` Name of the parameter that specifies the configuration of the CSRF protection.
`static String`	`INIT_PARAM_MISSING_AUTH_MAPPING` the 'missing-auth-mapping' init parameter

Fields inherited from interface org.apache.jackrabbit.webdav.DavConstants
creationDateFormat, DEPTH_0, DEPTH_1, DEPTH_INFINITY, DEPTH_INFINITY_S, HEADER_AUTHORIZATION, HEADER_CONTENT_LANGUAGE, HEADER_CONTENT_LENGTH, HEADER_CONTENT_TYPE, HEADER_DAV, HEADER_DEPTH, HEADER_DESTINATION, HEADER_ETAG, HEADER_IF, HEADER_LAST_MODIFIED, HEADER_LOCK_TOKEN, HEADER_OVERWRITE, HEADER_TIMEOUT, INFINITE_TIMEOUT, modificationDateFormat, NAMESPACE, OPAQUE_LOCK_TOKEN_PREFIX, PROPERTY_CREATIONDATE, PROPERTY_DISPLAYNAME, PROPERTY_GETCONTENTLANGUAGE, PROPERTY_GETCONTENTLENGTH, PROPERTY_GETCONTENTTYPE, PROPERTY_GETETAG, PROPERTY_GETLASTMODIFIED, PROPERTY_LOCKDISCOVERY, PROPERTY_RESOURCETYPE, PROPERTY_SOURCE, PROPERTY_SUPPORTEDLOCK, PROPFIND_ALL_PROP, PROPFIND_ALL_PROP_INCLUDE, PROPFIND_BY_PROPERTY, PROPFIND_PROPERTY_NAMES, TIMEOUT_INFINITE, UNDEFINED_TIME, UNDEFINED_TIMEOUT, XML_ACTIVELOCK, XML_ALLPROP, XML_COLLECTION, XML_DEPTH, XML_DST, XML_EXCLUSIVE, XML_HREF, XML_INCLUDE, XML_KEEPALIVE, XML_LINK, XML_LOCKENTRY, XML_LOCKINFO, XML_LOCKROOT, XML_LOCKSCOPE, XML_LOCKTOKEN, XML_LOCKTYPE, XML_MULTISTATUS, XML_OMIT, XML_OWNER, XML_PROP, XML_PROPERTYBEHAVIOR, XML_PROPERTYUPDATE, XML_PROPFIND, XML_PROPNAME, XML_PROPSTAT, XML_REMOVE, XML_RESPONSE, XML_RESPONSEDESCRIPTION, XML_SET, XML_SHARED, XML_SOURCE, XML_STATUS, XML_TIMEOUT, XML_WRITE

Constructor Summary

Constructors
Constructor and Description

AbstractWebdavServlet()

Constructors
Constructor and Description
`AbstractWebdavServlet()`

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`doAcl(WebdavRequest request, WebdavResponse response, DavResource resource)` The ACL method
`protected void`	`doBaselineControl(WebdavRequest request, WebdavResponse response, DavResource resource)` The BASELINECONTROL method
`protected void`	`doBind(WebdavRequest request, WebdavResponse response, DavResource resource)` The BIND method
`protected void`	`doCheckin(WebdavRequest request, WebdavResponse response, DavResource resource)` The CHECKIN method
`protected void`	`doCheckout(WebdavRequest request, WebdavResponse response, DavResource resource)` The CHECKOUT method
`protected void`	`doCopy(WebdavRequest request, WebdavResponse response, DavResource resource)` The COPY method
`protected void`	`doDelete(WebdavRequest request, WebdavResponse response, DavResource resource)` The DELETE method
`protected void`	`doGet(WebdavRequest request, WebdavResponse response, DavResource resource)` The GET method
`protected void`	`doHead(WebdavRequest request, WebdavResponse response, DavResource resource)` The HEAD method
`protected void`	`doLabel(WebdavRequest request, WebdavResponse response, DavResource resource)` The LABEL method
`protected void`	`doLock(WebdavRequest request, WebdavResponse response, DavResource resource)` The LOCK method
`protected void`	`doMerge(WebdavRequest request, WebdavResponse response, DavResource resource)` The MERGE method
`protected void`	`doMkActivity(WebdavRequest request, WebdavResponse response, DavResource resource)` The MKACTIVITY method
`protected void`	`doMkCol(WebdavRequest request, WebdavResponse response, DavResource resource)` The MKCOL method
`protected void`	`doMkWorkspace(WebdavRequest request, WebdavResponse response, DavResource resource)` The MKWORKSPACE method
`protected void`	`doMove(WebdavRequest request, WebdavResponse response, DavResource resource)` The MOVE method
`protected void`	`doOptions(WebdavRequest request, WebdavResponse response, DavResource resource)` The OPTION method
`protected void`	`doOrderPatch(WebdavRequest request, WebdavResponse response, DavResource resource)` The ORDERPATCH method
`protected void`	`doPoll(WebdavRequest request, WebdavResponse response, DavResource resource)` The POLL method
`protected void`	`doPost(WebdavRequest request, WebdavResponse response, DavResource resource)` The POST method.
`protected void`	`doPropFind(WebdavRequest request, WebdavResponse response, DavResource resource)` The PROPFIND method
`protected void`	`doPropPatch(WebdavRequest request, WebdavResponse response, DavResource resource)` The PROPPATCH method
`protected void`	`doPut(WebdavRequest request, WebdavResponse response, DavResource resource)` The PUT method
`protected void`	`doRebind(WebdavRequest request, WebdavResponse response, DavResource resource)` The REBIND method
`protected void`	`doReport(WebdavRequest request, WebdavResponse response, DavResource resource)` The REPORT method
`protected void`	`doSearch(WebdavRequest request, WebdavResponse response, DavResource resource)` The SEARCH method
`protected void`	`doSubscribe(WebdavRequest request, WebdavResponse response, DavResource resource)` The SUBSCRIBE method
`protected void`	`doUnbind(WebdavRequest request, WebdavResponse response, DavResource resource)` The UNBIND method
`protected void`	`doUncheckout(WebdavRequest request, WebdavResponse response, DavResource resource)` The UNCHECKOUT method
`protected void`	`doUnlock(WebdavRequest request, WebdavResponse response, DavResource resource)` The UNLOCK method
`protected void`	`doUnsubscribe(WebdavRequest request, WebdavResponse response, DavResource resource)` The UNSUBSCRIBE method
`protected void`	`doUpdate(WebdavRequest request, WebdavResponse response, DavResource resource)` The UPDATE method
`protected void`	`doVersionControl(WebdavRequest request, WebdavResponse response, DavResource resource)` The VERSION-CONTROL method
`protected boolean`	`execute(WebdavRequest request, WebdavResponse response, int method, DavResource resource)` Executes the respective method in the given webdav context
`String`	`getAuthenticateHeaderValue()` Returns the value of the 'WWW-Authenticate' header, that is returned in case of 401 error: the value is retrireved from the corresponding init param or defaults to `DEFAULT_AUTHENTICATE_HEADER`.
`static List<String>`	`getContentCodings(javax.servlet.http.HttpServletRequest request)` Obtain the (ordered!) list of content codings that have been used in the request
`abstract DavSessionProvider`	`getDavSessionProvider()` Returns the `DavSessionProvider`.
`protected InputContext`	`getInputContext(DavServletRequest request, InputStream in)` Return a new `InputContext` used for adding resource members
`abstract DavLocatorFactory`	`getLocatorFactory()` Returns the `DavLocatorFactory`.
`protected OutputContext`	`getOutputContext(DavServletResponse response, OutputStream out)` Return a new `OutputContext` used for spooling resource properties and the resource content
`abstract DavResourceFactory`	`getResourceFactory()` Returns the `DavResourceFactory`.
`protected static String`	`getSingletonField(javax.servlet.http.HttpServletRequest request, String fieldName)` Get field value of a singleton field
`void`	`init()`
`protected boolean`	`isCreateAbsoluteURI()` Returns if a absolute URI should be created for hrefs.
`protected abstract boolean`	`isPreconditionValid(WebdavRequest request, DavResource resource)` Checks if the precondition for this request and resource is valid.
`protected void`	`sendUnauthorized(WebdavRequest request, WebdavResponse response, DavException error)` Sets the "WWW-Authenticate" header and writes the appropriate error to the given webdav response.
`protected void`	`service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)` Service the given request.
`abstract void`	`setDavSessionProvider(DavSessionProvider davSessionProvider)` Returns the `DavSessionProvider`.
`abstract void`	`setLocatorFactory(DavLocatorFactory locatorFactory)` Sets the `DavLocatorFactory`.
`abstract void`	`setResourceFactory(DavResourceFactory resourceFactory)` Sets the `DavResourceFactory`.
`protected int`	`validateDestination(DavResource destResource, WebdavRequest request, boolean checkHeader)` Validate the given destination resource and return the proper status code: Any return value greater/equal than `HttpServletResponse.SC_NO_CONTENT` indicates an error.

Methods inherited from class javax.servlet.http.HttpServlet
doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet
destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

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

Field Detail
- INIT_PARAM_MISSING_AUTH_MAPPING
```
public static final String INIT_PARAM_MISSING_AUTH_MAPPING
```
  the 'missing-auth-mapping' init parameter
  
  See Also:
  
  Constant Field Values
- INIT_PARAM_AUTHENTICATE_HEADER
```
public static final String INIT_PARAM_AUTHENTICATE_HEADER
```
  Name of the optional init parameter that defines the value of the 'WWW-Authenticate' header.
  If the parameter is omitted the default value "Basic Realm=Jackrabbit Webdav Server" is used.
  
  See Also:
  
  getAuthenticateHeaderValue(), Constant Field Values
- DEFAULT_AUTHENTICATE_HEADER
```
public static final String DEFAULT_AUTHENTICATE_HEADER
```
  Default value for the 'WWW-Authenticate' header, that is set, if request results in a 401 (Unauthorized) error.
  
  See Also:
  
  getAuthenticateHeaderValue(), Constant Field Values
- INIT_PARAM_CSRF_PROTECTION
```
public static final String INIT_PARAM_CSRF_PROTECTION
```
  Name of the parameter that specifies the configuration of the CSRF protection. May contain a comma-separated list of allowed referrer hosts. If the parameter is omitted or left empty the behaviour is to only allow requests which have an empty referrer or a referrer host equal to the server host. If the parameter is set to 'disabled' no referrer checks will be performed at all.
  
  See Also:
  
  Constant Field Values
- INIT_PARAM_CREATE_ABSOLUTE_URI
```
public static final String INIT_PARAM_CREATE_ABSOLUTE_URI
```
  Name of the 'createAbsoluteURI' init parameter that defines whether hrefs should be created with a absolute URI or as absolute Path (ContextPath). The value should be 'true' or 'false'. The default value if not set is true.
  
  See Also:
  
  Constant Field Values

Constructor Detail
- AbstractWebdavServlet
```
public AbstractWebdavServlet()
```

Method Detail

init
```
public void init()
          throws javax.servlet.ServletException
```
Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

isPreconditionValid

protected abstract boolean isPreconditionValid(WebdavRequest request,
                                               DavResource resource)

Checks if the precondition for this request and resource is valid.

Parameters:: request -; resource -
Returns:

getDavSessionProvider
```
public abstract DavSessionProvider getDavSessionProvider()
```
Returns the DavSessionProvider.

Returns:

the session provider

setDavSessionProvider

public abstract void setDavSessionProvider(DavSessionProvider davSessionProvider)

Returns the DavSessionProvider.

Parameters:: davSessionProvider -

getLocatorFactory
```
public abstract DavLocatorFactory getLocatorFactory()
```
Returns the DavLocatorFactory.

Returns:

the locator factory

setLocatorFactory

public abstract void setLocatorFactory(DavLocatorFactory locatorFactory)

Sets the DavLocatorFactory.

Parameters:: locatorFactory -

getResourceFactory
```
public abstract DavResourceFactory getResourceFactory()
```
Returns the DavResourceFactory.

Returns:

the resource factory

setResourceFactory

public abstract void setResourceFactory(DavResourceFactory resourceFactory)

Sets the DavResourceFactory.

Parameters:: resourceFactory -

getAuthenticateHeaderValue
```
public String getAuthenticateHeaderValue()
```
Returns the value of the 'WWW-Authenticate' header, that is returned in case of 401 error: the value is retrireved from the corresponding init param or defaults to DEFAULT_AUTHENTICATE_HEADER.

Returns:

corresponding init parameter or DEFAULT_AUTHENTICATE_HEADER.

See Also:

INIT_PARAM_AUTHENTICATE_HEADER

isCreateAbsoluteURI
```
protected boolean isCreateAbsoluteURI()
```
Returns if a absolute URI should be created for hrefs.

Returns:

absolute URI hrefs

service

protected void service(javax.servlet.http.HttpServletRequest request,
                       javax.servlet.http.HttpServletResponse response)
                throws javax.servlet.ServletException,
                       IOException

Service the given request.

Overrides:: service in class javax.servlet.http.HttpServlet
Parameters:: request -; response -
Throws:: javax.servlet.ServletException; IOException

sendUnauthorized

protected void sendUnauthorized(WebdavRequest request,
                                WebdavResponse response,
                                DavException error)
                         throws IOException

Sets the "WWW-Authenticate" header and writes the appropriate error to the given webdav response.

Parameters:: request - The webdav request.; response - The webdav response.; error - The DavException that leads to the unauthorized response.
Throws:: IOException

execute

protected boolean execute(WebdavRequest request,
                          WebdavResponse response,
                          int method,
                          DavResource resource)
                   throws javax.servlet.ServletException,
                          IOException,
                          DavException

Executes the respective method in the given webdav context

Parameters:: request -; response -; method -; resource -
Throws:: javax.servlet.ServletException; IOException; DavException

doOptions

protected void doOptions(WebdavRequest request,
                         WebdavResponse response,
                         DavResource resource)
                  throws IOException,
                         DavException

The OPTION method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doHead

protected void doHead(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException

The HEAD method

Parameters:: request -; response -; resource -
Throws:: IOException

doGet

protected void doGet(WebdavRequest request,
                     WebdavResponse response,
                     DavResource resource)
              throws IOException,
                     DavException

The GET method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doPropFind

protected void doPropFind(WebdavRequest request,
                          WebdavResponse response,
                          DavResource resource)
                   throws IOException,
                          DavException

The PROPFIND method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doPropPatch

protected void doPropPatch(WebdavRequest request,
                           WebdavResponse response,
                           DavResource resource)
                    throws IOException,
                           DavException

The PROPPATCH method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doPost

protected void doPost(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException,
                      DavException

The POST method. Delegate to PUT

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doPut

protected void doPut(WebdavRequest request,
                     WebdavResponse response,
                     DavResource resource)
              throws IOException,
                     DavException

The PUT method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doMkCol

protected void doMkCol(WebdavRequest request,
                       WebdavResponse response,
                       DavResource resource)
                throws IOException,
                       DavException

The MKCOL method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doDelete

protected void doDelete(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws IOException,
                        DavException

The DELETE method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doCopy

protected void doCopy(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException,
                      DavException

The COPY method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doMove

protected void doMove(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException,
                      DavException

The MOVE method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doBind

protected void doBind(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException,
                      DavException

The BIND method

Parameters:: request -; response -; resource - the collection resource to which a new member will be added
Throws:: IOException; DavException

doRebind

protected void doRebind(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws IOException,
                        DavException

The REBIND method

Parameters:: request -; response -; resource - the collection resource to which a new member will be added
Throws:: IOException; DavException

doUnbind

protected void doUnbind(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws IOException,
                        DavException

The UNBIND method

Parameters:: request -; response -; resource - the collection resource from which a member will be removed
Throws:: IOException; DavException

validateDestination
```
protected int validateDestination(DavResource destResource,
                                  WebdavRequest request,
                                  boolean checkHeader)
                           throws DavException
```
Validate the given destination resource and return the proper status code: Any return value greater/equal than HttpServletResponse.SC_NO_CONTENT indicates an error.

Parameters:

destResource - destination resource to be validated.

request -

checkHeader - flag indicating if the destination header must be present.

Returns:

status code indicating whether the destination is valid.

Throws:

DavException

doLock

protected void doLock(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException,
                      DavException

The LOCK method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doUnlock

protected void doUnlock(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws DavException

The UNLOCK method

Parameters:: request -; response -; resource -
Throws:: DavException

doOrderPatch

protected void doOrderPatch(WebdavRequest request,
                            WebdavResponse response,
                            DavResource resource)
                     throws IOException,
                            DavException

The ORDERPATCH method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doSubscribe

protected void doSubscribe(WebdavRequest request,
                           WebdavResponse response,
                           DavResource resource)
                    throws IOException,
                           DavException

The SUBSCRIBE method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doUnsubscribe

protected void doUnsubscribe(WebdavRequest request,
                             WebdavResponse response,
                             DavResource resource)
                      throws IOException,
                             DavException

The UNSUBSCRIBE method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doPoll

protected void doPoll(WebdavRequest request,
                      WebdavResponse response,
                      DavResource resource)
               throws IOException,
                      DavException

The POLL method

Parameters:: request -; response -; resource -
Throws:: IOException; DavException

doVersionControl

protected void doVersionControl(WebdavRequest request,
                                WebdavResponse response,
                                DavResource resource)
                         throws DavException,
                                IOException

The VERSION-CONTROL method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doLabel

protected void doLabel(WebdavRequest request,
                       WebdavResponse response,
                       DavResource resource)
                throws DavException,
                       IOException

The LABEL method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doReport

protected void doReport(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws DavException,
                        IOException

The REPORT method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doCheckin

protected void doCheckin(WebdavRequest request,
                         WebdavResponse response,
                         DavResource resource)
                  throws DavException,
                         IOException

The CHECKIN method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doCheckout

protected void doCheckout(WebdavRequest request,
                          WebdavResponse response,
                          DavResource resource)
                   throws DavException,
                          IOException

The CHECKOUT method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doUncheckout

protected void doUncheckout(WebdavRequest request,
                            WebdavResponse response,
                            DavResource resource)
                     throws DavException,
                            IOException

The UNCHECKOUT method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doMerge

protected void doMerge(WebdavRequest request,
                       WebdavResponse response,
                       DavResource resource)
                throws DavException,
                       IOException

The MERGE method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doUpdate

protected void doUpdate(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws DavException,
                        IOException

The UPDATE method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doMkWorkspace

protected void doMkWorkspace(WebdavRequest request,
                             WebdavResponse response,
                             DavResource resource)
                      throws DavException,
                             IOException

The MKWORKSPACE method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doMkActivity

protected void doMkActivity(WebdavRequest request,
                            WebdavResponse response,
                            DavResource resource)
                     throws DavException,
                            IOException

The MKACTIVITY method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doBaselineControl

protected void doBaselineControl(WebdavRequest request,
                                 WebdavResponse response,
                                 DavResource resource)
                          throws DavException,
                                 IOException

The BASELINECONTROL method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doSearch

protected void doSearch(WebdavRequest request,
                        WebdavResponse response,
                        DavResource resource)
                 throws DavException,
                        IOException

The SEARCH method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

doAcl

protected void doAcl(WebdavRequest request,
                     WebdavResponse response,
                     DavResource resource)
              throws DavException,
                     IOException

The ACL method

Parameters:: request -; response -; resource -
Throws:: DavException; IOException

getInputContext
```
protected InputContext getInputContext(DavServletRequest request,
                                       InputStream in)
```
Return a new InputContext used for adding resource members

Parameters:

request -

in -

Returns:

See Also:

spoolResource(WebdavRequest, WebdavResponse, DavResource, boolean)

getOutputContext
```
protected OutputContext getOutputContext(DavServletResponse response,
                                         OutputStream out)
```
Return a new OutputContext used for spooling resource properties and the resource content

Parameters:

response -

out -

Returns:

See Also:

doPut(WebdavRequest, WebdavResponse, DavResource), doMkCol(WebdavRequest, WebdavResponse, DavResource)

getContentCodings
```
public static List<String> getContentCodings(javax.servlet.http.HttpServletRequest request)
```
Obtain the (ordered!) list of content codings that have been used in the request

getSingletonField
```
protected static String getSingletonField(javax.servlet.http.HttpServletRequest request,
                                          String fieldName)
```
Get field value of a singleton field

Parameters:

request - HTTP request

fieldName - field name

Returns:

the field value (when there is indeed a single field line) or null when field not present

Throws:

IllegalArgumentException - when multiple field lines present

Class AbstractWebdavServlet

Field Summary

Fields inherited from interface org.apache.jackrabbit.webdav.DavConstants

Constructor Summary

Method Summary

Methods inherited from class javax.servlet.http.HttpServlet

Methods inherited from class javax.servlet.GenericServlet

Methods inherited from class java.lang.Object

Field Detail

INIT_PARAM_MISSING_AUTH_MAPPING

INIT_PARAM_AUTHENTICATE_HEADER

DEFAULT_AUTHENTICATE_HEADER

INIT_PARAM_CSRF_PROTECTION

INIT_PARAM_CREATE_ABSOLUTE_URI

Constructor Detail

AbstractWebdavServlet