package org.scribe.extractors;
import java.util.regex.*;
import org.scribe.exceptions.*;
import org.scribe.model.*;
import org.scribe.utils.*;
public class JsonTokenExtractor implements AccessTokenExtractor
{
private Pattern accessTokenPattern = Pattern.compile("\"access_token\":\\s*\"(\\S*?)\"");
@Override
public Token extract(String response)
{
Preconditions.checkEmptyString(response, "Cannot extract a token from a null or empty String");
Matcher matcher = accessTokenPattern.matcher(response);
if(matcher.find())
{
return new Token(matcher.group(1), "", response);
}
else
{
throw new OAuthException("Cannot extract an acces token. Response was: " + response);
}
}
}