: Class SampleResourceIndexer

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## org.w3c.tools.resources.indexer
Class SampleResourceIndexer

    java.lang.Object
      |
      +--org.w3c.tools.resources.AttributeHolder
            |
            +--org.w3c.tools.resources.Resource
                  |
                  +--org.w3c.tools.resources.indexer.SampleResourceIndexer

Direct Known Subclasses:
  ConfigResourceIndexer, ContentTypeIndexer, GhostResourceIndexer, ServletIndexer, ZipIndexer

public class SampleResourceIndexer
extends Resource
implements ContainerInterface, ResourceIndexer

A container for directories and templates.

Field Summary
`protected static int` | `ATTR_NOT_INDEXED` Attribute index - the super indexer, if any.
`protected static int` | `ATTR_SUPER_INDEXER` Attribute index - the super indexer, if any.
`protected ResourceReference` | `contentTypes`
`protected static java.lang.String` | `defname`
`protected ResourceReference` | `directories`
`protected static boolean` | `extCaseSensitive`
`protected ResourceReference` | `extensions`

Fields inherited from class org.w3c.tools.resources.Resource
`ATTR_CONTEXT, ATTR_HELP_URL, ATTR_IDENTIFIER, ATTR_LAST_MODIFIED, ATTR_PARENT, ATTR_RESOURCE_FRAMES, ATTR_STORE_ENTRY, ATTR_URL`

Fields inherited from class org.w3c.tools.resources.AttributeHolder
`attributes, values`

Constructor Summary
`SampleResourceIndexer()`
`SampleResourceIndexer(ResourceContext ctxt)`

Method Summary
`protected Resource` | `createDirectoryResource(java.io.File directory, RequestInterface req, java.lang.String name, java.util.Hashtable defs)` Create a default container resource for this directory (that exists).
`protected Resource` | `createFileResource(java.io.File directory, RequestInterface req, java.lang.String name, java.util.Hashtable defs)` Create a default file resource for this file (that exists).
`Resource` | `createResource(ContainerResource container, RequestInterface request, java.io.File directory, java.lang.String name, java.util.Hashtable defs)` Try to create a resource for the given file.
`protected Resource` | `createVirtualResource(java.io.File directory, RequestInterface req, java.lang.String name, java.util.Hashtable defs)` Try to create a virtual resource if the real (physical) resource is not there.
`void` | `delete()` Delete this inexer
`void` | `delete(java.lang.String name)` Remove a child resource from that container.
`java.util.Enumeration` | `enumerateResourceIdentifiers(boolean all)` Enumerate children resource identifiers.
`protected ResourceReference` | `getDirectories()`
`protected ResourceReference` | `getExtensions()`
`protected java.lang.String[]` | `getFileExtensions(java.lang.String name)`
`protected java.lang.String` | `getIndexedDirName(java.lang.String name)`
`protected java.lang.String` | `getIndexedFileName(java.lang.String name)`
`java.lang.String` | `getIndexedName(java.io.File directory, java.lang.String name)` Get the name of the resource relative to the given filename.
`java.lang.String` | `getSuperIndexer()`
`protected ResourceReference` | `getTemplateFor(java.lang.String ext)` Return the class (if any) that our store defines for given extension.
`long` | `lastModified()` When was this indexer configuration last modified.
`ResourceReference` | `loadDirectory(java.lang.String name)` Load a given directory template from the store.
`ResourceReference` | `loadExtension(java.lang.String name)`
`ResourceReference` | `lookup(java.lang.String name)` Lookup a children in the container.
`protected java.util.Hashtable` | `mergeDefaultAttributes(Resource template, java.lang.String ext, java.util.Hashtable into)` Merge the attributes this extension defines, with the provided ones.
`protected void` | `mergeFrameAttributes(ResourceFrame origFrame, java.lang.String ext, ResourceReference frameref)` Merge the attributes this extension defines, with the provided ones.
`void` | `registerResource(java.lang.String name, Resource resource, java.util.Hashtable defs)` Initialize and register the given resource within that container.

Methods inherited from class org.w3c.tools.resources.Resource
`acceptUnload, checkMultipleLock, collectFrames, getClone, getContext, getFrame, getFrames, getHelpURL, getHelpURL, getIdentifier, getLastModified, getParent, getResourceReference, getServer, getSpace, getSpaceEntry, getStoreEntry, getURLPath, getValue, getValue, initialize, isInitialized, isUnloaded, markModified, notifyUnload, registerFrame, setContext, setContext, setValue, setValue, unregisterFrame, updateAttributes`

Methods inherited from class org.w3c.tools.resources.AttributeHolder
`definesAttribute, definesAttribute, getAttributes, getBoolean, getChar, getClone, getClone, getDouble, getFloat, getInt, getLong, getString, getValue, initialize, lookupAttribute, pickleValues, print, setBoolean, setChar, setDouble, setFloat, setInt, setLong, setString, setValue, unsafeGetValue`

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

Field Detail

### extCaseSensitive

    protected static final boolean extCaseSensitive

### defname

    protected static final java.lang.String defname

### ATTR_SUPER_INDEXER

    protected static int ATTR_SUPER_INDEXER

  Attribute index - the super indexer, if any.

### ATTR_NOT_INDEXED

    protected static int ATTR_NOT_INDEXED

  Attribute index - the super indexer, if any.

### directories

    protected ResourceReference directories

### extensions

    protected ResourceReference extensions

### contentTypes

    protected ResourceReference contentTypes

Constructor Detail

### SampleResourceIndexer

    public SampleResourceIndexer(ResourceContext ctxt)

### SampleResourceIndexer

    public SampleResourceIndexer()

Method Detail

### getDirectories

    protected ResourceReference getDirectories()

### getExtensions

    protected ResourceReference getExtensions()

### lastModified

    public long lastModified()

  Description copied from interface: ResourceIndexer
  When was this indexer configuration last modified.
  Specified by:
    lastModified in interface ResourceIndexer
  Tags copied from interface: ResourceIndexer
  Returns:
    The date at which that indexer was last modified, as a number of milliseconds since Java epoch.

### getSuperIndexer

    public java.lang.String getSuperIndexer()

### enumerateResourceIdentifiers

    public java.util.Enumeration enumerateResourceIdentifiers(boolean all)

  Description copied from interface: ContainerInterface
  Enumerate children resource identifiers.
  Specified by:
    enumerateResourceIdentifiers in interface ContainerInterface
  Tags copied from interface: ContainerInterface
  Parameters:
    `all` - Should all resources be enumerated ? Resources are often created on demand only, this flag allows the caller to tell the container about wether it is interested only in already created resources, or in all resources (even the one that have not yet been created).
  Returns:
    An String enumeration, one element per child.

### lookup

    public ResourceReference lookup(java.lang.String name)

  Description copied from interface: ContainerInterface
  Lookup a children in the container.
  Specified by:
    lookup in interface ContainerInterface
  Tags copied from interface: ContainerInterface
  Parameters:
    `name` - The name of the children to lookup. the resource from its store.

### delete

    public void delete()
                throws MultipleLockException

  Delete this inexer
  Overrides:
    delete in class Resource
  Throws:
    MultipleLockException - if someone else has locked the indexer.

### delete

    public void delete(java.lang.String name)

  Description copied from interface: ContainerInterface
  Remove a child resource from that container.
  Specified by:
    delete in interface ContainerInterface
  Tags copied from interface: ContainerInterface
  Parameters:
    `name` - The name of the child to remove.
  Throws:
    MultipleLockException - If somone else has locked the resource.

### registerResource

    public void registerResource(java.lang.String name,
                                 Resource resource,
                                 java.util.Hashtable defs)

  Description copied from interface: ContainerInterface
  Initialize and register the given resource within that container.
  Specified by:
    registerResource in interface ContainerInterface
  Tags copied from interface: ContainerInterface
  Parameters:
    `name` - The identifier for the resource.
    `resource` - An unitialized resource instance.
    `defs` - A default set of init attribute values (may be null).
  Throws:
    InvalidResourceException - If an error occurs during the registration.

### loadExtension

    public ResourceReference loadExtension(java.lang.String name)

### getTemplateFor

    protected ResourceReference getTemplateFor(java.lang.String ext)

  Return the class (if any) that our store defines for given extension.
  Parameters:
    `ext` - The extension we want a class for.
  Returns:
    A Class instance, or null.

### mergeDefaultAttributes

    protected java.util.Hashtable mergeDefaultAttributes(Resource template,
                                                         java.lang.String ext,
                                                         java.util.Hashtable into)

  Merge the attributes this extension defines, with the provided ones.
  Parameters:
    `attrs` - The attributes we want to fill with default values.
    `ext` - The extension name.
    `into` - The already built set of default values.
  Returns:
    A Hashtable, containing the augmented set of default attribute values.

### mergeFrameAttributes

    protected void mergeFrameAttributes(ResourceFrame origFrame,
                                        java.lang.String ext,
                                        ResourceReference frameref)

  Merge the attributes this extension defines, with the provided ones.
  Parameters:
    `origFrame` - The original frame
    `ext` - The extension name
    `into` - The ResourceReference of the frame to be merged

### getFileExtensions

    protected java.lang.String[] getFileExtensions(java.lang.String name)

### createFileResource

    protected Resource createFileResource(java.io.File directory,
                                          RequestInterface req,
                                          java.lang.String name,
                                          java.util.Hashtable defs)

  Create a default file resource for this file (that exists).
  Parameters:
    `directory` - The directory of the file.
    `name` - The name of the file.
    `defs` - A set of default attribute values.
  Returns:
    An instance of Resource, or null if we were unable to create it.

### loadDirectory

    public ResourceReference loadDirectory(java.lang.String name)

  Load a given directory template from the store.
  Parameters:
    `name` - The name of the template to load.
  Returns:
    An instance of ResourceReference, or null.

### createDirectoryResource

    protected Resource createDirectoryResource(java.io.File directory,
                                               RequestInterface req,
                                               java.lang.String name,
                                               java.util.Hashtable defs)

  Create a default container resource for this directory (that exists).
  Parameters:
    `directory` - The parent directory.
    `req` - the request that triggered this creation
    `name` - The name of its sub-directory to index.
    `defaults` - A set of default atribute values.
  Returns:
    A Resource instance, or null if the indexer was unable to build a default resource for the directory.

### createVirtualResource

    protected Resource createVirtualResource(java.io.File directory,
                                             RequestInterface req,
                                             java.lang.String name,
                                             java.util.Hashtable defs)

  Try to create a virtual resource if the real (physical) resource is not there.
  Parameters:
    `directory` - The directory the file is in.
    `req` - the request that triggered this creation
    `name` - The name of the file.
    `defs` - Any default attribute values that should be provided to the created resource at initialization time.
  Returns:
    A Resource instance, or null if the given file can't be truned into a resource given our configuration database.

### createResource

    public Resource createResource(ContainerResource container,
                                   RequestInterface request,
                                   java.io.File directory,
                                   java.lang.String name,
                                   java.util.Hashtable defs)

  Try to create a resource for the given file. This method makes its best efforts to try to build a default resource out of a file.
  Specified by:
    createResource in interface ResourceIndexer
  Parameters:
    `directory` - The directory the file is in.
    `name` - The name of the file.
    `defs` - Any default attribute values that should be provided to the created resource at initialization time.
  Returns:
    A Resource instance, or null if the given file can't be truned into a resource given our configuration database.

### getIndexedName

    public java.lang.String getIndexedName(java.io.File directory,
                                           java.lang.String name)

  Get the name of the resource relative to the given filename.
  Specified by:
    getIndexedName in interface ResourceIndexer
  Parameters:
    `name` - The name of the file.
  Returns:
    a String, the resource name.

### getIndexedFileName

    protected java.lang.String getIndexedFileName(java.lang.String name)

### getIndexedDirName

    protected java.lang.String getIndexedDirName(java.lang.String name)

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