Package org.alfresco.repo.content.filestore

Class SpoofedTextContentReader

java.lang.Object

org.alfresco.repo.content.AbstractContentAccessor

org.alfresco.repo.content.AbstractContentReader

org.alfresco.repo.content.filestore.SpoofedTextContentReader

All Implemented Interfaces:

ContentAccessor, ContentReader

public class SpoofedTextContentReader
extends AbstractContentReader

Provides access to text data that is generated when requested.

The URL has the format: spoofed://{locale=en_GB,seed=12345,length=1024,strings=["Alfresco", "Cloud"]}

The lexicon for the given locale is found by taking the language part of the locale (en in en_GB) and finding the resource alfresco/textgen/lexicon-stem-en.txt.

Since:

5.1

Author:

Derek Hulley

See Also:

• TextGenerator

Nested Class Summary

Nested classes/interfaces inherited from class org.alfresco.repo.content.AbstractContentAccessor

AbstractContentAccessor.CallbackFileChannel, AbstractContentAccessor.ChannelCloseCallbackAdvise

Field Summary

Fields

Modifier and Type	Field	Description
static final String	KEY_LOCALE
static final String	KEY_SEED
static final String	KEY_SIZE
static final String	KEY_WORDS
static final String	LEXICON_STEM_PATH

Constructor Summary

Constructors

Constructor	Description
SpoofedTextContentReader(String url)

Method Summary

Modifier and Type	Method	Description
static String	createContentUrl(Locale locale, long seed, long size, String... words)	Helper to create a content URL that represents spoofed text
protected ContentReader	createReader()	The URL of the write is known from the start and this method contract states that no consideration needs to be taken w.r.t.
boolean	exists()
protected ReadableByteChannel	getDirectReadableChannel()	Provides low-level access to read content from the repository.
long	getLastModified()
long	getSeed()
long	getSize()
org.alfresco.textgen.TextGenerator	getTextGenerator()
static org.alfresco.textgen.TextGenerator	getTextGenerator(Locale locale)	Get a text generator for the given locale
String[]	getWords()
protected final void	setContentUrl(String contentUrl)	Allow derived implementations to set the Content URL.

Methods inherited from class org.alfresco.repo.content.AbstractContentReader

addListener, compareContentReaders, getContent, getContent, getContentInputStream, getContentString, getContentString, getFileChannel, getLimits, getReadableChannel, getReader, getTransformerDebug, getUseBufferedInputStream, isChannelOpen, isClosed, setLimits, setTransformerDebug, setUseBufferedInputStream

Methods inherited from class org.alfresco.repo.content.AbstractContentAccessor

channelOpened, finalize, getCallbackFileChannel, getContentData, getContentUrl, getEncoding, getLocale, getMimetype, setEncoding, setLocale, setMimetype, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.alfresco.service.cmr.repository.ContentAccessor

getContentData, getContentUrl, getEncoding, getLocale, getMimetype, setEncoding, setLocale, setMimetype

Field Details

LEXICON_STEM_PATH

public static final String LEXICON_STEM_PATH

See Also:

• Constant Field Values

KEY_LOCALE

public static final String KEY_LOCALE

See Also:

• Constant Field Values

KEY_SEED

public static final String KEY_SEED

See Also:

• Constant Field Values

KEY_SIZE

public static final String KEY_SIZE

See Also:

• Constant Field Values

KEY_WORDS

public static final String KEY_WORDS

See Also:

• Constant Field Values

Constructor Details

SpoofedTextContentReader

public SpoofedTextContentReader(String url)

Parameters:

url - a URL describing the type of text to produce (see class comments)

Method Details

getTextGenerator

public static org.alfresco.textgen.TextGenerator getTextGenerator(Locale locale)

Get a text generator for the given locale

Throws:

RuntimeException - if the locale has no lexicon exists for the locale

createContentUrl

public static String createContentUrl(Locale locale,
 long seed,
 long size,
 String... words)

Helper to create a content URL that represents spoofed text

Parameters:

locale - the text local (must be supported by an appropriate lexicon config resource)

seed - numerical seed to ensure repeatable sequences of random text

size - the size (bytes) of the text to generate

words - additional words with decreasing frequency

Returns:

the content URL

Throws:

IllegalArgumentException - if the resulting URL exceeds 255 characters

exists

public boolean exists()

Returns:

true always

getTextGenerator

public org.alfresco.textgen.TextGenerator getTextGenerator()

Returns:

the text generator that will make the spoofed text

getSeed

public long getSeed()

Returns:

the random seed for the spoofed text

getWords

public String[] getWords()

Returns:

the words to add to the spoofed text

getSize

public long getSize()

Returns:

spoofed text size

getLastModified

public long getLastModified()

See Also:

• File.lastModified()

createReader

protected ContentReader createReader()
                              throws ContentIOException

The URL of the write is known from the start and this method contract states that no consideration needs to be taken w.r.t. the stream state.

Specified by:

createReader in class AbstractContentReader

Returns:

Returns a reader onto the location referenced by this instance. The instance must always be a new instance.

Throws:

ContentIOException

getDirectReadableChannel

protected ReadableByteChannel getDirectReadableChannel()
                                                throws ContentIOException

Description copied from class: AbstractContentReader

Provides low-level access to read content from the repository.

This is the only of the content reading methods that needs to be implemented by derived classes. All other content access methods make use of this in their underlying implementations.

Specified by:

getDirectReadableChannel in class AbstractContentReader

Returns:

Returns a channel from which content can be read

Throws:

ContentIOException - if the channel could not be opened or the underlying content has disappeared

setContentUrl

protected final void setContentUrl(String contentUrl)

Description copied from class: AbstractContentAccessor

Allow derived implementations to set the Content URL. This allows for implementations where the URL is not known when the accessor is first constructed.

Overrides:

setContentUrl in class AbstractContentAccessor

Parameters:

contentUrl - the new content URL