//Instantiate classloader
this.classLoader = (this.classLoader == null)? Thread.currentThread().getContextClassLoader():this.classLoader;
this.classLoader = new URLClassLoader(getURLs(), this.classLoader);
//Instantiate the classtransformer, we check if the persistenceinfo URL has been specified.
StaticWeaveClassTransformer classTransformer=null;
if(persistenceInfo!=null){
classTransformer = new StaticWeaveClassTransformer(persistenceInfo, this.classLoader,this.logWriter,this.logLevel);
} else{
classTransformer = new StaticWeaveClassTransformer(source, this.classLoader,this.logWriter,this.logLevel);
}
//Starting process...
Archive sourceArchive =(new ArchiveFactoryImpl()).createArchive(source);
Iterator entries = sourceArchive.getEntries();
while (entries.hasNext()){
String entryName = (String)entries.next();
InputStream entryInputStream = sourceArchive.getEntry(entryName);
String className = PersistenceUnitProcessor.buildClassNameFromEntryString(entryName) ;
//Add a directory entry
swoh.addDirEntry(getDirectoryFromEntryName(entryName));
//Add a regular entry
JarEntry newEntry = new JarEntry(entryName);
byte[] originalClassBytes=null;
byte[] transferredClassBytes=null;
try {
Class thisClass = this.classLoader.loadClass(className);
//if the class is not in the classpath, we simply copy the entry
//to the target(no weaving).
if (thisClass == null){
swoh.addEntry(entryInputStream, newEntry);
continue;
}
//Try to read the loaded class bytes, the class bytes is required for
//classtransformer to perform transfer. Simply copy entry to the target(no weaving)
//if the class bytes can't be read.
InputStream is = this.classLoader.getResourceAsStream(entryName);
if (is!=null){
originalClassBytes = new byte[is.available()];
is.read(originalClassBytes);
}else{
swoh.addEntry(entryInputStream, newEntry);
continue;
}
//If everything is OK so far, we perform the weaving. we need three paramteres in order to
//class to perform weaving for that class, the class name,the class object and class bytes.
transferredClassBytes = classTransformer.transform(className.replace('.', '/'), thisClass, originalClassBytes);
//if transferredClassBytes is null means the class dose not get woven.
if(transferredClassBytes!=null){
swoh.addEntry(newEntry, transferredClassBytes);
} else{