/*
* PluginExport.java
*
* Copyright (c) 2010, Ralf Biedert All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer. Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the author nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package net.xeoh.plugins.remote.util.internal;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Collection;
import java.util.logging.Logger;
import net.xeoh.plugins.base.Plugin;
import net.xeoh.plugins.base.util.PluginUtil;
/**
* Some utils for exporting plugins. Only used internally.
*
* @author Ralf Biedert
*/
public class PluginExport {
/**
* @param plugin
*
* @return .
*/
public static String getExportName(Plugin plugin) {
final Collection<Class<? extends Plugin>> primaryInterfaces = new PluginUtil(plugin).getPrimaryInterfaces();
final Logger logger = Logger.getLogger(PluginExport.class.getName());
if (primaryInterfaces.size() < 1) {
logger.severe("CRITICAL ERROR: UNABLE TO GET ANY INTERFACE NAME FOR " + plugin);
return "ERROR";
}
if (primaryInterfaces.size() > 1) {
logger.warning("Multiple plugin names found ... that is very bad and means your export names will be unstable!");
}
Class<? extends Plugin> next = primaryInterfaces.iterator().next();
return next.getCanonicalName();
}
/**
* @param plugin
*
* @return .
*/
@SuppressWarnings("boxing")
public static String getHashedName(Plugin plugin) {
final String exportName = getExportName(plugin);
try {
// Convert name to bytes
final byte[] bytes = exportName.getBytes("UTF-8");
final MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
// Update the hash
digest.update(bytes, 0, bytes.length);
// Get result
final byte[] hash = digest.digest();
// Assemble hash string
final StringBuilder sb = new StringBuilder();
for (final byte b : hash) {
final String format = String.format("%02x", b);
sb.append(format);
}
char replacements[] = { 'a', 'b', 'c', 'd', 'e', 'f', 'a', 'b', 'c', 'd', 'e' };
String rval = sb.toString();
char charAt = rval.charAt(0);
if (Character.isDigit(charAt)) {
int i = Integer.parseInt("" + charAt);
rval = replacements[i] + rval.substring(1);
}
return rval;
} catch (final NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return "ERROR_CREATING_FINGERPRINT";
}
}