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package com.sun.xml.ws.api.pipe;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import java.util.logging.Level;
import com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl;
/**
* Clones the whole pipeline.
*
*
* Since {@link Pipe}s may form an arbitrary directed graph, someone needs
* to keep track of isomorphism for a clone to happen correctly. This class
* serves that role.
*
* @author Kohsuke Kawaguchi
*/
@SuppressWarnings("deprecation")
public class PipeClonerImpl extends PipeCloner {
private static final Logger LOGGER = Logger.getLogger(PipeClonerImpl.class.getName());
// no need to be constructed publicly. always use the static clone method.
/*package*/ public PipeClonerImpl() {
super(new HashMap());
}
protected PipeClonerImpl(Map master2copy) {
super(master2copy);
}
/**
* {@link Pipe} version of {@link #copy(Tube)}
*/
@SuppressWarnings("unchecked")
public T copy(T p) {
Pipe r = (Pipe)master2copy.get(p);
if(r==null) {
r = p.copy(this);
// the pipe must puts its copy to the map by itself
assert master2copy.get(p)==r : "the pipe must call the add(...) method to register itself before start copying other pipes, but "+p+" hasn't done so";
}
return (T)r;
}
/**
* The {@link Pipe} version of {@link #add(Tube, Tube)}.
*/
public void add(Pipe original, Pipe copy) {
assert !master2copy.containsKey(original);
assert original!=null && copy!=null;
master2copy.put(original,copy);
}
/**
* Disambiguation version.
*/
public void add(AbstractTubeImpl original, AbstractTubeImpl copy) {
add((Tube)original,copy);
}
@Override
public void add(Tube original, Tube copy) {
assert !master2copy.containsKey(original);
assert original!=null && copy!=null;
master2copy.put(original,copy);
}
@SuppressWarnings("unchecked")
@Override
public T copy(T t) {
Tube r = (Tube)master2copy.get(t);
if(r==null) {
if (t != null) {
r = t.copy(this);
} else {
if (LOGGER.isLoggable(Level.FINER)) {
LOGGER.fine("WARNING, tube passed to 'copy' in " + this + " was null, so no copy was made");
}
}
}
return (T)r;
}
}