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## org.w3c.jigsaw.http
Class httpd

    java.lang.Object
      |
      +--org.w3c.jigsaw.http.httpd

Direct Known Subclasses:
  AdminServer

public class httpd
extends java.lang.Object
implements ServerInterface, java.lang.Runnable, PropertyMonitoring, java.lang.Cloneable

The server main class. This class can be used either through its main method, to run a full httpd server, or simply by importing it into your app. This latter possibility allows you to export some of your application state through http.

The server itself uses this to report about memory consumption, running threads, etc.

Field Summary
`static java.lang.String` | `CHECKURL_P` Name of the property indicating the URL of Jigsaw's chekpointer.
`static java.lang.String` | `CLIENT_BUFSIZE_P` Nam eof the property giving the client output buffer size.
`static java.lang.String` | `CLIENT_DEBUG_P` Name of the property indicating wether client should be debuged.
`static java.lang.String` | `CLIENT_FACTORY_P` Name of the property indicating the client factory class.
`static java.lang.String` | `CLIENT_PRIORITY_P` Name of the client thread priority property.
`static java.lang.String` | `CONFIG_P` Name of the property giving the server's config directory.
`static boolean` | `debug` debug flag
`static java.lang.String` | `DOCURL_P` Name of the property indicating the URL of Jigsaw's help.
`static java.lang.String` | `EDIT_ROOT_P` Name of the property that indicates the root resource for edit.
`static java.lang.String` | `FS_SENSITIVITY` Name of the property indicating if the file-system is case sensitive.
`protected java.lang.String` | `host` FIXME check The server host name.
`static java.lang.String` | `HOST_P` Name of the server host property.
`protected int[]` | `instances`
`static java.lang.String` | `KEEP_ALIVE_P` Name of the server's keep alive flag.
`static java.lang.String` | `KEEP_TIMEOUT_P` Name of the server's connection time out property.
`static java.lang.String` | `LOGGER_P` Name of property indicating the logger class to use.
`static int` | `MAX_LOADED_STORE`
`static java.lang.String` | `MAX_LOADED_STORE_P` Max number of store loaded in memory.
`protected int` | `port` FIXME check The server port.
`static java.lang.String` | `PORT_P` Name of the server port property.
`protected ObservableProperties` | `props` This server set of properties.
`static java.lang.String` | `PROPS_P` Name of the property giving the path of the property file.
`static java.lang.String` | `PUBLIC_P` Name of the property indicating the public methods allowed on that server.
`static java.lang.String` | `REQUEST_TIMEOUT_P` Name of the server's request time out property.
`FramedResource` | `root` This server root entity.
`static java.lang.String` | `ROOT_CLASS_P`
`static java.lang.String` | `ROOT_NAME_P` Name of the property giving the name of the root resource.
`static java.lang.String` | `ROOT_P` Name of the property giving the server root directory.
`static java.lang.String` | `SERVER_GROUP_P` UNIX - Name of the property that indicates the server group.
`static java.lang.String` | `SERVER_SOFTWARE_P` Name of the server software property.
`static java.lang.String` | `SERVER_USER_P` UNIX - Name of the property that indicates the server user.
`static java.lang.String` | `SHUFFLER_PATH_P` Name of the property giving the shuffler path.
`static java.lang.String` | `SPACE_P` Name of the property giving the server space directory.
`java.lang.Thread` | `thread`
`EventManager` | `timer`
`static java.lang.String` | `TRACE_P` Name of the server's trace property.
`static java.lang.String` | `TRASHDIR_P` Name of the property indicating the trash directory.
`protected java.net.URL` | `url` FIXME check for clones This server URL.
`static java.lang.String` | `USE_SM_P` Name of property that indicates if some security manager is required.
`static int` | `verscount` The current internal version counter of Jigsaw.
`static java.lang.String` | `VERSCOUNT_P`
`static java.lang.String` | `version` The current displayed version of Jigsaw.

Constructor Summary
`httpd()` Create a new server instance in this process.

Method Summary
`boolean` | `checkFileSystemSensitivity()` Is the underlying file-system case sensitive ?
`void` | `checkpoint()` Checkpoint all cached data, by saving them to disk.
`protected void` | `cleanup(boolean restart)` Cleanup the resources associated with this server context.
`ServerHandler` | `clone(ServerHandlerManager shm, java.lang.String id, ObservableProperties props)` clone this server
`void` | `debug(boolean onoff)` Turn debugging on/off for this instance of httpd server.
`java.util.Enumeration` | `enumeratePropertySet()` Enumerate all the registered property sets
`void` | `errlog(Client client, java.lang.String msg)` Emit a server error on behalf of some client object.
`void` | `errlog(java.lang.Object from, java.lang.String msg)` The prefered form for reporting errors.
`void` | `errlog(Resource from, java.lang.String msg)` Another nice way of reporting errors from an HTTPResource.
`void` | `errlog(java.lang.String msg)` Emit an error on behalf of the server.
`void` | `fatal(java.lang.Exception e, java.lang.String msg)` Emit a fatal error.
`void` | `fatal(java.lang.String msg)` Emit a fatal error.
`java.io.File` | `getAuthDirectory()` Get this server authentication directory.
`protected java.lang.String` | `getBanner()`
`int` | `getClientBufferSize()` Get the client's buffer size.
`boolean` | `getClientDebug()` Get the client's debug flags from the properties.
`boolean` | `getClientKeepConnection()` Does this server wants clients to try keeping connections alive ?
`int` | `getClientThreadPriority()` Get the client's threads priority from the properties.
`java.io.File` | `getConfigDirectory()` Get this server config directory.
`ResourceReference` | `getConfigResource()` get this server config resource
`int` | `getConnectionTimeOut()` Get the connection allowed idle time from the properties.
`ResourceContext` | `getDefaultContext()` Get the default resource context for that server.
`java.lang.String` | `getDocumentationURL()` Get the full URL of Jigsaw's documentation.
`ResourceReference` | `getEditRoot()` Get the server's edit root resource.
`java.lang.String` | `getHost()` Get this server host name.
`java.lang.String` | `getIdentifier()` Get this server identifier.
`java.io.File` | `getIndexerDirectory()` Get this server index directory
`IndexersCatalog` | `getIndexersCatalog()` get the indexer catalog of this server
`java.net.InetAddress` | `getInetAddress()` Get the server inet address
`int` | `getLocalPort()` Get the server local port
`Logger` | `getLogger()` Get the logger for that server.
`int` | `getPort()` Get this server port number.
`ObservableProperties` | `getProperties()` Get this server properties.
`Resource` | `getPropertySet(java.lang.String name)` Get a property set matching a specific name
`RealmsCatalog` | `getRealmsCatalog()` Get this server realm catalog.
`int` | `getRequestTimeOut()` Get the request allowed time slice from the properties.
`ResourceSpace` | `getResourceSpace()` Get this server resource space
`ResourceStoreManager` | `getResourceStoreManager()` Get this server resourcestore manager.
`FramedResource` | `getRoot()` Get the server current root resource.
`java.io.File` | `getRootDirectory()` Get this server root directory.
`ResourceReference` | `getRootReference()` get the resource reference of the root resource of the server
`Shuffler` | `getShuffler(Client client)` Get a shuffler for this server's client.
`java.lang.String` | `getSoftware()` Get the server software string.
`java.io.File` | `getSpaceDir()` Get this server space diretory
`httpdStatistics` | `getStatistics()` Get this server statistics.
`java.io.File` | `getStoreDirectory()` Get this server store directory.
`java.lang.String` | `getTrashDirectory()` Get the tracsh directory
`java.net.URL` | `getURL()` Get the server URL.
`void` | `initialize(ServerHandlerManager shm, java.lang.String identifier, ObservableProperties props)` Initialize a new HTTP server.
`protected void` | `initializeProperties()` FIXME protected for now to handle clones Initialize some of the servers instance values from properties.
`protected void` | `initializePropertySets()`
`ResourceReference` | `loadResource(java.lang.String name)` Lookup the root store for some resource.
`ResourceReference` | `loadRoot(java.lang.String name)` Dynamically change the root resource for the server.
`void` | `log(Client client, Request request, Reply reply, int nbytes, long duration)` Emit a log entry.
`void` | `log(java.lang.String msg)` Emit a log message.
`static void` | `main(java.lang.String[] args)` debugging main
`ReplyInterface` | `perform(RequestInterface req)` Perform the given request on behalf of this server.
`boolean` | `propertyChanged(java.lang.String name)` The property monitoring implementation.
`void` | `registerPropertySet(PropertySet set)` Register a property set to the server.
`void` | `restart()` Restart the server properly.
`void` | `run()`
`void` | `shutdown()` Shutdown the server properly.
`void` | `startCheckpoint()` start the automatic checkpoint
`void` | `trace(Client client, java.lang.String msg)` Emit a server trace.
`void` | `trace(java.lang.String msg)` Emit a server trace, on behalf of the server itself.
`static void` | `usage()` this server's usage
`void` | `warning(java.lang.Exception e, java.lang.String msg)` Emit a warning.
`void` | `warning(java.lang.String msg)` Emit a warning.

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

Field Detail

### version

    public static final java.lang.String version

  The current displayed version of Jigsaw.

### verscount

    public static final int verscount

  The current internal version counter of Jigsaw. This counter is bumped anytime the configuration needs upgrade.

### debug

    public static final boolean debug

  debug flag

### VERSCOUNT_P

    public static final java.lang.String VERSCOUNT_P

### SERVER_SOFTWARE_P

    public static final java.lang.String SERVER_SOFTWARE_P

  Name of the server software property. The server software is the string that gets emited by Jigsaw on each reply, to tell the client what server emited the reply.

  This property defaults to Jigsaw/1.0a.

### HOST_P

    public static final java.lang.String HOST_P

  Name of the server host property. The host property should be set to the name of the host running this server.

  This property defaults to the local host name, although if you want directory listing to work propertly, you might need to provide the full host name (including its domain).

### ROOT_P

    public static final java.lang.String ROOT_P

  Name of the property giving the server root directory.

  The server root directory is used to deduce a bunch of defaults properties, when they don't have any specific values.

  This property has no defaults.

### CONFIG_P

    public static final java.lang.String CONFIG_P

  Name of the property giving the server's config directory.

### SPACE_P

    public static final java.lang.String SPACE_P

  Name of the property giving the server space directory. The server space directory should contain an index file, built with the indexer.

  This property defaults to /WWW.

### PORT_P

    public static final java.lang.String PORT_P

  Name of the server port property. At initializatiojn time, the server will bind its accepting socket to the host its runs on, and to the provided port.

  This property defaults to `8888`.

### TRACE_P

    public static final java.lang.String TRACE_P

  Name of the server's trace property. When set to true, the server will emit some traces indicating its current state by using the logger trace methods. This property should be set to true if you want clients to emit traces.

  This property defaults to false.

### KEEP_ALIVE_P

    public static final java.lang.String KEEP_ALIVE_P

  Name of the server's keep alive flag. This property is used to determine wether this server should keep its connection alive. Keeping connection alive requires this flag to set to true, and clients to be compliant to the keep alive feature as described in HTTP/1.1 specification.

  This property defaults to true.

### KEEP_TIMEOUT_P

    public static final java.lang.String KEEP_TIMEOUT_P

  Name of the server's connection time out property. This property gives, in milliseconds, the timeout to use for connections that remains idel, waiting for an incoming request.

  This property defaults to `10000` milliseconds.

### REQUEST_TIMEOUT_P

    public static final java.lang.String REQUEST_TIMEOUT_P

  Name of the server's request time out property. The request time out property value indicates, in milliseconds, the allowed duration of a request. Any request whose duration exceeds this time out value will be aborted.

  This property defaults to `60000`.

### CLIENT_PRIORITY_P

    public static final java.lang.String CLIENT_PRIORITY_P

  Name of the client thread priority property. Every client threads will run at the given priority, which should be in the range of valid threads priority.

  This property defaults to `Thread.NORM_PRIORITY`.

### CLIENT_BUFSIZE_P

    public static final java.lang.String CLIENT_BUFSIZE_P

  Nam eof the property giving the client output buffer size. Each clients, when not using a shuffler, has to allocate its own output buffer, Output buffer size may increase/decrease significantly the Jigsaw performances, so change it with care.

  This property defaults to `8192`.

### CLIENT_DEBUG_P

    public static final java.lang.String CLIENT_DEBUG_P

  Name of the property indicating wether client should be debuged. When debuged, clients emit some traces, through the server logger about their current state.

  This property defaults to false.

### USE_SM_P

    public static final java.lang.String USE_SM_P

  Name of property that indicates if some security manager is required. You usually don't want to run a security manager for the server, except in the unlikely (right now) case that you want the server to be able to host agents.

  This property defaults to false.

### LOGGER_P

    public static final java.lang.String LOGGER_P

  Name of property indicating the logger class to use. The Jigsaw server allows you to implement your own logger. The only logger provided with the core server is the `org.w3c.jigsaw.core.CommonLogger`, which implements the common log format.

  Property defaults to `org.w3c.jigsaw.core.CommonLogger`

### CLIENT_FACTORY_P

    public static final java.lang.String CLIENT_FACTORY_P

  Name of the property indicating the client factory class.

### SHUFFLER_PATH_P

    public static final java.lang.String SHUFFLER_PATH_P

  Name of the property giving the shuffler path. This property should be set if you are to use the shuffler. The data shuffler is an external process to whiuch Jigsaw delegates the task of writing back document content to clients. Use this when you think your server isn't fast enough.

  This should be an absloute path.

  This property has no defaults.

### ROOT_NAME_P

    public static final java.lang.String ROOT_NAME_P

  Name of the property giving the name of the root resource. Upon startup, or restart, the server will look in its root store a resource whose name is given by this resource, and install it as its root resource.

  This property defaults to `root`.

### ROOT_CLASS_P

    public static final java.lang.String ROOT_CLASS_P

### MAX_LOADED_STORE_P

    public static final java.lang.String MAX_LOADED_STORE_P

  Max number of store loaded in memory.

### MAX_LOADED_STORE

    public static final int MAX_LOADED_STORE

### PROPS_P

    public static final java.lang.String PROPS_P

  Name of the property giving the path of the property file. this should be used internally (for restart) only.

  This property defaults to `config/httpd.props`.

### FS_SENSITIVITY

    public static final java.lang.String FS_SENSITIVITY

  Name of the property indicating if the file-system is case sensitive. This property determines wether Jigsaw will list all files to check for case sensitivity, before creating a resource for that file.

  For obvious security reasons, this property defaults to true.

### DOCURL_P

    public static java.lang.String DOCURL_P

  Name of the property indicating the URL of Jigsaw's help. This URL should point to the URL path of Jigsaw's documentation as served by that server.

### TRASHDIR_P

    public static java.lang.String TRASHDIR_P

  Name of the property indicating the trash directory.

### CHECKURL_P

    public static java.lang.String CHECKURL_P

  Name of the property indicating the URL of Jigsaw's chekpointer.

### PUBLIC_P

    public static java.lang.String PUBLIC_P

  Name of the property indicating the public methods allowed on that server. This property should provide a `|` separated list of methods available on that server.

  This property defaults to: GET | HEAD | PUT | POST | OPTIONS | DELETE | LINK | UNLINK | TRACE.

### EDIT_ROOT_P

    public static java.lang.String EDIT_ROOT_P

  Name of the property that indicates the root resource for edit. The edit root resource is the one that will show up by default when accessing the admin server from JigAdmin.

### SERVER_USER_P

    public static java.lang.String SERVER_USER_P

  UNIX - Name of the property that indicates the server user. When set, the server will try to turn itself to the given user name after initialization. If this fail, the server will abort.

  This property has no default value.

### SERVER_GROUP_P

    public static java.lang.String SERVER_GROUP_P

  UNIX - Name of the property that indicates the server group. When set, the server will try to turn itself to the given group name after initialization. If this fail, the server will abort.

  This property has no default value.

### thread

    public java.lang.Thread thread

### timer

    public EventManager timer

### instances

    protected int[] instances

### props

    protected ObservableProperties props

  This server set of properties.

### host

    protected java.lang.String host

  FIXME check The server host name.

### port

    protected int port

  FIXME check The server port.

### root

    public FramedResource root

  This server root entity.

### url

    protected java.net.URL url

  FIXME check for clones This server URL.

Constructor Detail

### httpd

    public httpd()

  Create a new server instance in this process.
  Parameters:
    `identifier` - The server's identifier.
    `props` - The server properties.

Method Detail

### propertyChanged

    public boolean propertyChanged(java.lang.String name)

  The property monitoring implementation.
  Specified by:
    propertyChanged in interface PropertyMonitoring
  Parameters:
    `name` - The name of the property that has changed.
  Returns:
    A boolean, true if the changed was taken into account, false otherwise.

### loadResource

    public ResourceReference loadResource(java.lang.String name)

  Lookup the root store for some resource.
  Specified by:
    loadResource in interface ServerInterface
  Parameters:
    `name` - The name of the resource to lookup in the root store.
  Returns:
    The loaded resource, or null.

### startCheckpoint

    public void startCheckpoint()

  start the automatic checkpoint

### checkpoint

    public void checkpoint()

  Checkpoint all cached data, by saving them to disk.
  Specified by:
    checkpoint in interface ServerInterface

### loadRoot

    public ResourceReference loadRoot(java.lang.String name)

  Dynamically change the root resource for the server. This is kind a dangerous operation !
  Specified by:
    loadRoot in interface ServerInterface
  Parameters:
    `name` - The name of the new root resource, to be found in the root resource store.
  Returns:
    The new installed root resource, or null if we couldn't load the given resource.

### initializeProperties

    protected void initializeProperties()
                                 throws ServerHandlerInitException

  FIXME protected for now to handle clones Initialize some of the servers instance values from properties.
  Throws:
    ServerHandlerInitException - if unable to be initialized.

### registerPropertySet

    public void registerPropertySet(PropertySet set)

  Register a property set to the server.
  Parameters:
    `propSet` - The property set to register.

### enumeratePropertySet

    public java.util.Enumeration enumeratePropertySet()

  Enumerate all the registered property sets
  Returns:
    an enumeration of PropertySet

### getPropertySet

    public Resource getPropertySet(java.lang.String name)

  Get a property set matching a specific name
  Returns:
    a Resource, the property set found

### initializePropertySets

    protected void initializePropertySets()

### getStatistics

    public httpdStatistics getStatistics()

  Get this server statistics.

### getProperties

    public ObservableProperties getProperties()

  Get this server properties.
  Specified by:
    getProperties in interface ServerInterface

### checkFileSystemSensitivity

    public boolean checkFileSystemSensitivity()

  Is the underlying file-system case sensitive ?
  Specified by:
    checkFileSystemSensitivity in interface ServerInterface
  Returns:
    A boolean, true if file system is case sensitive, false otherwise.

### getDocumentationURL

    public java.lang.String getDocumentationURL()

  Get the full URL of Jigsaw's documentation.
  Specified by:
    getDocumentationURL in interface ServerInterface
  Returns:
    A String encoded URL.

### getTrashDirectory

    public java.lang.String getTrashDirectory()

  Get the tracsh directory
  Specified by:
    getTrashDirectory in interface ServerInterface

### getClientDebug

    public final boolean getClientDebug()

  Get the client's debug flags from the properties.
  Specified by:
    getClientDebug in interface ServerInterface

### getClientKeepConnection

    public final boolean getClientKeepConnection()

  Does this server wants clients to try keeping connections alive ?
  Specified by:
    getClientKeepConnection in interface ServerInterface

### getRequestTimeOut

    public final int getRequestTimeOut()

  Get the request allowed time slice from the properties.
  Specified by:
    getRequestTimeOut in interface ServerInterface

### getConnectionTimeOut

    public final int getConnectionTimeOut()

  Get the connection allowed idle time from the properties.
  Specified by:
    getConnectionTimeOut in interface ServerInterface

### getClientThreadPriority

    public final int getClientThreadPriority()

  Get the client's threads priority from the properties.
  Specified by:
    getClientThreadPriority in interface ServerInterface

### getClientBufferSize

    public final int getClientBufferSize()

  Get the client's buffer size.
  Specified by:
    getClientBufferSize in interface ServerInterface

### getHost

    public java.lang.String getHost()

  Get this server host name.
  Specified by:
    getHost in interface ServerInterface

### getPort

    public int getPort()

  Get this server port number.
  Specified by:
    getPort in interface ServerInterface

### getRoot

    public FramedResource getRoot()

  Get the server current root resource.
  Specified by:
    getRoot in interface ServerInterface

### getRootReference

    public ResourceReference getRootReference()

  get the resource reference of the root resource of the server

### getLogger

    public Logger getLogger()

  Get the logger for that server.
  Returns:
    A Logger compatible instance, or null if no logger specified.

### getEditRoot

    public ResourceReference getEditRoot()

  Get the server's edit root resource. The edit root is the one that shows up by default when using JigAdmin It is named "root" in the interface.
  Returns:
    An HTTPResource.

### getURL

    public java.net.URL getURL()

  Get the server URL.
  Specified by:
    getURL in interface ServerInterface

### getSoftware

    public java.lang.String getSoftware()

  Get the server software string.
  Specified by:
    getSoftware in interface ServerInterface

### getLocalPort

    public int getLocalPort()

  Get the server local port
  Specified by:
    getLocalPort in interface ServerInterface

### getIdentifier

    public java.lang.String getIdentifier()

  Get this server identifier.

### getInetAddress

    public java.net.InetAddress getInetAddress()

  Get the server inet address
  Returns:
    The INET address this server is listening to.

### getRootDirectory

    public java.io.File getRootDirectory()

  Get this server root directory.
  Specified by:
    getRootDirectory in interface ServerInterface

### getSpaceDir

    public java.io.File getSpaceDir()

  Get this server space diretory

### getConfigDirectory

    public java.io.File getConfigDirectory()

  Get this server config directory.
  Specified by:
    getConfigDirectory in interface ServerInterface

### getAuthDirectory

    public java.io.File getAuthDirectory()

  Get this server authentication directory.
  Specified by:
    getAuthDirectory in interface ServerInterface

### getStoreDirectory

    public java.io.File getStoreDirectory()

  Get this server store directory.
  Specified by:
    getStoreDirectory in interface ServerInterface

### getIndexerDirectory

    public java.io.File getIndexerDirectory()

  Get this server index directory
  Specified by:
    getIndexerDirectory in interface ServerInterface

### getIndexersCatalog

    public IndexersCatalog getIndexersCatalog()

  get the indexer catalog of this server
  Specified by:
    getIndexersCatalog in interface ServerInterface

### getRealmsCatalog

    public RealmsCatalog getRealmsCatalog()

  Get this server realm catalog.

### getResourceStoreManager

    public ResourceStoreManager getResourceStoreManager()

  Get this server resourcestore manager.

### getResourceSpace

    public ResourceSpace getResourceSpace()

  Get this server resource space
  Specified by:
    getResourceSpace in interface ServerInterface

### getDefaultContext

    public ResourceContext getDefaultContext()

  Get the default resource context for that server.
  Specified by:
    getDefaultContext in interface ServerInterface

### cleanup

    protected void cleanup(boolean restart)

  Cleanup the resources associated with this server context. This method should only be called by the server thread itself, when it is requested to perform the cleanup.
  Parameters:
    `restart` - If true the server is restarted (reinitialized) straight away.

### shutdown

    public void shutdown()

  Shutdown the server properly. This methods shutdown the server, and clean-up all its associated resources. If the current thread is not the server thread, it unblocks the server thread from its accept() call, and forces it to perform the rest of the shutdown operation itself.
  See Also:
    `cleanup(boolean)`

### restart

    public void restart()

  Restart the server properly. This methods restarts the server. It cleans-up all its associated resources, and reinitialize it from scratch. If the current thread is not the server thread, it unblocks the server thread from its accept() call, and forces it to perform the rest of the restart operation itself.
  Parameters:
    `reload_properties` - Should we reload the properties from the property file, or should we just reinitialize from the current set of properties.
  See Also:
    `cleanup(boolean)`

### debug

    public void debug(boolean onoff)

  Turn debugging on/off for this instance of httpd server.
  Parameters:
    `A` - boolean, true turns debugging on, flase turns it off.

### trace

    public void trace(Client client,
                      java.lang.String msg)

  Emit a server trace. Traces are used solely for debugging purposes. You should either use log or error to report informations.
  Parameters:
    `client` - The client object which wants to report the trace.
    `msg` - The trace message.
  See Also:
    `httpd#error`, `log(org.w3c.jigsaw.http.Client, org.w3c.jigsaw.http.Request, org.w3c.jigsaw.http.Reply, int, long)`

### trace

    public void trace(java.lang.String msg)

  Emit a server trace, on behalf of the server itself.
  Parameters:
    `msg` - The trace the server wants to emit.

### log

    public void log(Client client,
                    Request request,
                    Reply reply,
                    int nbytes,
                    long duration)

  Emit a log entry.
  Parameters:
    `client` - The client whose request is to be logged.
    `request` - The request that has been handled.
    `reply` - The emitted reply.
    `nbytes` - The number of bytes emitted back to the client.
    `duration` - The time it took to process the request.

### log

    public void log(java.lang.String msg)

  Emit a log message.
  Parameters:
    `msg` - The message to log.

### errlog

    public void errlog(Client client,
                       java.lang.String msg)

  Emit a server error on behalf of some client object.
  Parameters:
    `client` - The client.
    `msg` - The error message.

### errlog

    public void errlog(java.lang.String msg)

  Emit an error on behalf of the server.
  Parameters:
    `msg` - The error message.

### errlog

    public void errlog(java.lang.Object from,
                       java.lang.String msg)

  The prefered form for reporting errors.
  Parameters:
    `from` - The object that emited the error.
    `msg` - The error message.

### errlog

    public void errlog(Resource from,
                       java.lang.String msg)

  Another nice way of reporting errors from an HTTPResource.
  Specified by:
    errlog in interface ServerInterface
  Parameters:
    `from` - The resource that trigered the error.
    `msg` - The error message.

### fatal

    public void fatal(java.lang.Exception e,
                      java.lang.String msg)

  Emit a fatal error.
  Parameters:
    `e` - Any exception that caused the error.
    `msg` - Any additional message.

### fatal

    public void fatal(java.lang.String msg)

  Emit a fatal error.
  Parameters:
    `msg` - Any error message

### warning

    public void warning(java.lang.String msg)

  Emit a warning. Warnings are emited, typically if the configuration is inconsistent, and the server can continue its work.
  Parameters:
    `msg` - The warning message.

### warning

    public void warning(java.lang.Exception e,
                        java.lang.String msg)

  Emit a warning.
  Parameters:
    `e` - Any exception.
    `msg` - Any message.

### getShuffler

    public Shuffler getShuffler(Client client)

  Get a shuffler for this server's client. Whenever possible, we use a shuffler program to speed up communication with the client. This methods return whatever the server deems appropriate for this client shuffler.
  Returns:
    A Shuffler instance, or null.
  See Also:
    `Shuffler`

### getBanner

    protected java.lang.String getBanner()

### run

    public void run()

  Specified by:
    run in interface java.lang.Runnable

### perform

    public ReplyInterface perform(RequestInterface req)
                           throws ProtocolException,
                                  ResourceException

  Perform the given request on behalf of this server.
  Specified by:
    perform in interface ServerInterface
  Parameters:
    `request` - The request to perform.
  Returns:
    A non-null Reply instance.
  Throws:
    ProtocolException - If some error occurs during processing the request.
    ResourceException - If a resource got a fatal error.

### initialize

    public void initialize(ServerHandlerManager shm,
                           java.lang.String identifier,
                           ObservableProperties props)
                    throws ServerHandlerInitException

  Initialize a new HTTP server. The server wil first be initialized from the available properties, it will than startup, and finally run in its own thread.
  Parameters:
    `identifier` - The string identifying this server's occurence.
    `props` - A set of properties to initialize from.
  Throws:
    ServerHandlerInitException - if unable to be initialized.

### clone

    public ServerHandler clone(ServerHandlerManager shm,
                               java.lang.String id,
                               ObservableProperties props)
                        throws ServerHandlerInitException

  clone this server
  Throws:
    ServerHandlerInitException - if unable to be initialized.

### getConfigResource

    public ResourceReference getConfigResource()

  get this server config resource

### usage

    public static void usage()

  this server's usage

### main

    public static void main(java.lang.String[] args)

  debugging main

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