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/*
* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license. See terms of license at gnu.org.
*/
package net.java.sip.communicator.impl.replacement.vbox7;
import java.util.regex.*;
import net.java.sip.communicator.service.replacement.*;
import net.java.sip.communicator.util.*;
/**
* Implements the {@link ReplacementService} to provide previews for Vbox7
* links.
*
* @author Purvesh Sahoo
*/
public class ReplacementServiceVbox7Impl
implements ReplacementService
{
/**
* The logger for this class.
*/
private static final Logger logger =
Logger.getLogger(ReplacementServiceVbox7Impl.class);
/**
* The regex used to match the link in the message.
*/
public static final String VBOX7_PATTERN =
"(http.*?(www\\.)*?vbox7\\.com\\/play\\:([a-zA-Z0-9_\\-]+))([?&]\\w+=[\\w-]*)*";
/**
* Configuration label property name. The label is saved in the languages
* file under this property.
*/
public static final String VBOX7_CONFIG_LABEL = "VBOX7";
/**
* Constructor for <tt>ReplacementServiceVbox7Impl</tt>. The source needs
* to register itself with {@link ReplacementService} sourceList to be
* displayed in the configuration panel.
*/
public ReplacementServiceVbox7Impl()
{
sourceList.add(VBOX7_CONFIG_LABEL);
logger.trace("Creating a Vbox7 Source.");
}
/**
* Replaces the vbox7 video links in the chat message with their
* corresponding thumbnails.
*
* @param chatString the original chat message.
* @return replaced chat message with the thumbnail image; the original
* message in case of no match.
*/
public String getReplacedMessage(String chatString)
{
final Pattern p =
Pattern.compile(VBOX7_PATTERN, Pattern.CASE_INSENSITIVE
| Pattern.DOTALL);
Matcher m = p.matcher(chatString);
int count = 0, startPos = 0;
StringBuffer msgBuff = new StringBuffer();
while (m.find())
{
count++;
msgBuff.append(chatString.substring(startPos, m.start()));
startPos = m.end();
if (count % 2 == 0)
{
msgBuff.append("<IMG HEIGHT=\"90\" WIDTH=\"120\" SRC=\"");
msgBuff
.append("http://i.vbox7.com/p/");
msgBuff.append(m.group(3));
msgBuff.append("3.jpg\"></IMG>");
}
else
{
msgBuff.append(chatString.substring(m.start(), m.end()));
}
}
msgBuff.append(chatString.substring(startPos));
if (!msgBuff.toString().equals(chatString))
return msgBuff.toString();
return chatString;
}
}
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