protected Map internalBind()

in xbean-spring/src/main/java/org/apache/xbean/spring/jndi/DefaultContext.java [393:440]
45 lines of code
12 McCabe index (conditional complexity)

    protected Map internalBind(String name, Object value, boolean allowRebind) throws NamingException {
        
        if (name == null || name.length() == 0){
            throw new NamingException("Invalid Name " + name);
        }
        if (frozen){
            throw new NamingException("Read only");
        }

        Map newBindings = new HashMap();
        int pos = name.indexOf('/');
        if (pos == -1) {
            Object oldValue = treeBindings.put(name, value);
            if (!allowRebind && oldValue != null) {
                throw new NamingException("Something already bound at " + name);
            }
            bindings.put(name, value);
            newBindings.put(name, value);
        }
        else {
            String segment = name.substring(0, pos);
          
            if (segment == null || segment.length()==0){
                throw new NamingException("Invalid segment " + segment);
            }
            Object o = treeBindings.get(segment);
            if (o == null) {
                o = newContext();
                treeBindings.put(segment, o);
                bindings.put(segment, o);
                newBindings.put(segment, o);
            }
            else if (!(o instanceof DefaultContext)) {
                throw new NamingException("Something already bound where a subcontext should go");
            }
            DefaultContext defaultContext = (DefaultContext) o;
            String remainder = name.substring(pos + 1);
            Map subBindings = defaultContext.internalBind(remainder, value, allowRebind);
            for (Iterator iterator = subBindings.entrySet().iterator(); iterator.hasNext();) {
                Map.Entry entry = (Map.Entry) iterator.next();
                String subName = segment + "/" + (String) entry.getKey();
                Object bound = entry.getValue();
                treeBindings.put(subName, bound);
                newBindings.put(subName, bound);
            }
        }
        return newBindings;
    }