private boolean merge()

in services/src/main/java/org/apache/unomi/services/impl/profiles/ProfileServiceImpl.java [1179:1219]
41 lines of code
12 McCabe index (conditional complexity)

    private boolean merge(Map<String, Object> target, Map<String, Object> object) {
        boolean changed = false;
        for (Map.Entry<String, Object> newEntry : object.entrySet()) {
            if (newEntry.getValue() != null) {
                String packageName = newEntry.getValue().getClass().getPackage().getName();
                if (newEntry.getValue() instanceof Collection) {
                    target.put(newEntry.getKey(), newEntry.getValue());
                    changed = true;
                } else if (newEntry.getValue() instanceof Map) {
                    Map<String, Object> currentMap = (Map) target.get(newEntry.getKey());
                    if (currentMap == null) {
                        target.put(newEntry.getKey(), newEntry.getValue());
                        changed = true;
                    } else {
                        changed |= merge(currentMap, (Map) newEntry.getValue());
                    }
                } else if (StringUtils.equals(packageName, "java.lang")) {
                    if (newEntry.getValue() != null && !newEntry.getValue().equals(target.get(newEntry.getKey()))) {
                        target.put(newEntry.getKey(), newEntry.getValue());
                        changed = true;
                    }
                } else if (newEntry.getValue().getClass().isEnum()) {
                    target.put(newEntry.getKey(), newEntry.getValue());
                    changed = true;
                } else {
                    if (target.get(newEntry.getKey()) != null) {
                        changed |= merge(target.get(newEntry.getKey()), newEntry.getValue());
                    } else {
                        target.put(newEntry.getKey(), newEntry.getValue());
                        changed = true;
                    }
                }
            } else {
                if (target.containsKey(newEntry.getKey())) {
                    target.remove(newEntry.getKey());
                    changed = true;
                }
            }
        }
        return changed;
    }