TestRule rule3 = new TestRule("rule3", false);
        TestRule rule4 = new TestRule("rule4", true);

        ruleManager.addRule(rule1);
        ruleManager.addRule(rule2);
        ruleManager.addRule(rule3);
        ruleManager.addRule(rule4);

        List<Rule> rules = ruleManager.getRules();
        assertEquals(4, rules.size());
        assertEquals("rule1", rules.get(0).getRuleId());

                }
            }
            return null;
        }

        @Override
        public void addRule(Rule rule) {
            if (rule != null) {
                rules.add(rule);
            }
        }

        @Override
        public void addRule(int index, Rule rule) {
            if (rule != null) {
                rules.add(index, rule);
            }
        }

        @Override
        public Rule getRule(ResponseData responseData) {
            return null;
        }

        @Override
        public void addRule(Rule rule) {
        }

        @Override
        public void addRule(int index, Rule rule) {
        }

        @Override
        public boolean removeRule(Rule rule) {
            return false;
        }

        @Override

            client.setRetryInterval(500);
        }).prototype("fsClient", FileSystemClient.class).prototype("ruleManager", RuleManagerImpl.class, manager -> {
            manager.addRule(container.getComponent("sitemapsRule"));
            manager.addRule(container.getComponent("fileRule"));
        })
                .prototype("accessResult", AccessResultImpl.class)
                .prototype("urlQueue", UrlQueueImpl.class)

    controller.setDefaultIntervalTime(1000);
});
```

### Sitemap Support

```java
// Enable sitemap processing
container.singleton("sitemapsRule", SitemapsRule.class, rule -> {
    rule.addRule("url", ".*sitemap.*");
});

// Add sitemap URL
crawler.addUrl("https://example.com/sitemap.xml");
```

## Data Access and Storage

### Accessing Crawled Data

```java