}
        return buf.toString();
    }

    /**
     * Gets the character set for the given file.
     *
     * @param file the file to get the character set for
     * @return the character set
     */
    protected String getCharSet(final File file) {
        return charset;
    }

    /**
     * Gets the character encoding used for files.
     *
     * @return the character encoding

    }

    /**
     * Gets an access result for the specified session and URL.
     *
     * @param sessionId the session ID
     * @param url the URL
     * @return the access result or null if not found
     */
    @Override
    public AccessResultImpl<Long> getAccessResult(final String sessionId, final String url) {
        return dataHelper.getAccessResultMap(sessionId).get(url);
    }

    /**

            childUrlRuleMap.put(tagName, attrName);
        }
    }

    /**
     * Gets the XPath API instance for this thread.
     *
     * @return the XPath API instance
     */
    protected XPathAPI getXPathAPI() {
        XPathAPI cachedXPathAPI = xpathAPI.get();
        if (cachedXPathAPI == null) {
            cachedXPathAPI = new XPathAPI();
            xpathAPI.set(cachedXPathAPI);

    @Override
    public List<Pattern> getIncludeUrlPatternList(final String sessionId) {
        try {
            return includeFilterCache.get(sessionId);
        } catch (final ExecutionException e) {
            throw new CrawlerSystemException(e);
        }
    }

    /**
     * Gets the list of exclude URL patterns for the specified session.
     *
     * @param sessionId The session ID.

        }

        /**
         * Gets a cache key for this FTP connection based on host and port.
         * This key can be used to cache FTP client connections.
         *
         * @return The cache key in format "host:port"
         */
        public String getCacheKey() {
            return getHost() + ":" + getPort();
        }

        /**
         * Gets the host name from the FTP URL.
         *

        assertNull(smbAuthenticationHolder.get(null));
        assertNull(smbAuthenticationHolder.get(""));
        assertNull(smbAuthenticationHolder.get(" "));
        assertNull(smbAuthenticationHolder.get("smb1://"));
        assertNull(smbAuthenticationHolder.get("smb1://hoge:1000/"));
        assertNull(smbAuthenticationHolder.get("smb1://foo/"));
        assertNull(smbAuthenticationHolder.get("smb1://foo:10000/"));

import org.opensearch.action.fieldcaps.FieldCapabilitiesResponse;
import org.opensearch.action.get.GetRequest;
import org.opensearch.action.get.GetRequestBuilder;
import org.opensearch.action.get.GetResponse;
import org.opensearch.action.get.MultiGetRequest;
import org.opensearch.action.get.MultiGetRequestBuilder;
import org.opensearch.action.get.MultiGetResponse;
import org.opensearch.action.index.IndexRequest;

            }, Thread.currentThread().getName() + "-pdf");
            task.setDaemon(isDaemonThread);
            task.start();
            task.join(timeout);
            if (!done.get()) {
                for (int i = 0; i < 100 && !done.get(); i++) {
                    task.interrupt();
                    ThreadUtil.sleep(100L);
                }

        testRule.register(1);

        List<Rule> rules = ruleManager.getRules();
        assertEquals(3, rules.size());
        assertEquals("rule1", rules.get(0).getRuleId());
        assertEquals("middle", rules.get(1).getRuleId());
        assertEquals("rule2", rules.get(2).getRuleId());
    }

    /**
     * Test register method with last index
     */
    public void test_register_lastIndex() {

        for (int i = 0; i < createdComponents.size(); i++) {
            for (int j = i + 1; j < createdComponents.size(); j++) {
                assertNotSame(createdComponents.get(i), createdComponents.get(j));
            }
        }
    }

    /**
     * Test concurrent destroy operations
     */
    public void test_concurrentDestroy() throws Exception {