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package com.sun.enterprise.addons.util;
import java.io.File;
import java.io.FilenameFilter;
import java.util.regex.Pattern;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import java.util.Map;
import java.util.Set;
import java.util.jar.Attributes;
import java.util.jar.Attributes.Name;
/**
* @since 9.1
* @author sreenivas munnangi, msreddy@dev.java.net
*/
public class AddOnUtils {
public static JarFile getAddonJarFile(
String addonName, File jarDir, FilenameFilter filter)
throws Exception {
if ((jarDir == null) || (addonName == null) || (filter == null)) {
throw new Exception("invalid input to getAddonJarFile");
}
File[] jars = jarDir.listFiles(filter);
String str;
for (File jar:jars) {
str = jar.getName().split(ConfigurableJarFileFilter.regex)[0];
if (str.equals(addonName)) {
return new JarFile(jar);
}
}
return null;
}
public static String [] getDependencies(JarFile jar)
throws Exception {
String [] strArr = null;
if (jar == null) {
throw new Exception("invalid input to getDependencies");
}
Manifest mf = jar.getManifest();
if (mf == null) return strArr;
Attributes attrs = mf.getMainAttributes();
if (attrs == null) return strArr;
Set<Map.Entry<Object, Object>> mfattrs = attrs.entrySet();
String key, val;
for (Map.Entry<Object,Object> entry : mfattrs) {
key = ((Attributes.Name) entry.getKey()).toString();
val = (String) entry.getValue();
if (! key.equals("Add-On-Dependencies")) continue;
if (val.contains(",")) {
strArr = val.split(",");
} else {
strArr = new String[1];
strArr[0] = val;
}
}
return strArr;
}
}