package foundation.server.config;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Iterator;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.dom4j.Document;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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public class ConfigerLoader {
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protected static Logger logger;
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private static ConfigerLoader instance;
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static {
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logger = LogManager.getLogger(ConfigerLoader.class);
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}
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private ConfigerLoader() {
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}
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public synchronized static ConfigerLoader getInstance() {
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if (instance == null) {
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instance = new ConfigerLoader();
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}
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return instance;
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}
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public static void staticLoad() throws Exception {
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getInstance();
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instance.load();
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}
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public void load() throws Exception {
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//1. clear configuration
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Configer configer = Configer.newInstance();
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//2. load configuration
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String path = Configer.getPath_MainConfig();
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File file = new File(path);
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loadOneFile(configer, file);
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//3.
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Configer.activeInstance(configer);
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}
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private void loadOneFile(Configer configer, File file) throws Exception {
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try {
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logger.debug("load config file:" + file);
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InputStream inputStream = new FileInputStream(file);
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try {
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SAXReader reader = new SAXReader();
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reader.setValidation(false);
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Document doc = reader.read(inputStream);
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Element root = doc.getRootElement();
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loadParams(configer, root);
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}
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finally {
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try {
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inputStream.close();
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} catch (IOException e) {
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}
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}
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} catch (Exception e) {
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logger.error("can not load dispatch file: " + file);
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logger.error(e);
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throw e;
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}
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}
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private void loadParams(Configer configer, Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator("param");
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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String name = element.attributeValue("name");
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String value = element.attributeValue("value");
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configer.addParam(name, value);
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}
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}
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}
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