package frame.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.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import org.apache.log4j.Logger;
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import org.dom4j.Document;
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import org.dom4j.DocumentException;
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import org.dom4j.Element;
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import org.dom4j.io.SAXReader;
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import org.xml.sax.EntityResolver;
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import frame.role.UserRightContainer;
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public class ContextConfigerLoader {
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protected static Logger logger;
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private static ContextConfigerLoader instance;
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private static LoaderContainer configLoaderContainer;
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private static UserRightContainer userRightContainer;
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private List<VirtualPathConfig> virtualPathList;
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private List<CallableConfig> callablList;
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static {
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logger = Logger.getLogger(ContextConfigerLoader.class);
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configLoaderContainer = LoaderContainer.getInstance();
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userRightContainer = UserRightContainer.getInstance();
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}
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private ContextConfigerLoader() {
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virtualPathList = new ArrayList<VirtualPathConfig>();
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callablList = new ArrayList<CallableConfig>();
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}
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public synchronized static ContextConfigerLoader getInstance() {
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if (instance == null) {
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instance = new ContextConfigerLoader();
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}
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return instance;
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}
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public void load() {
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String path = Configer.getPath_MainConfig();
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File file = new File(path);
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loadOneFile(file);
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}
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private void loadOneFile(File file) {
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try {
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logger.debug("load dispatch 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(root);
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loadConfigLoader(root);
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loadFreeVisit(root);
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loadLimitedVisit(root);
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loadVirtualPathConfig(root);
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loadCallableConfig(root);
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loadDataRight(root);
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}
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catch (DocumentException e) {
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logger.error("can not load dispatch file: " + file);
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logger.error(e);
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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(e);
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}
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}
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public void loadClasses() throws Exception {
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//1.
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for (VirtualPathConfig virtualPath: virtualPathList) {
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loadOneVirtualPath(virtualPath);
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}
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//2.
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for (CallableConfig callableConfig: callablList) {
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loadOneDispatch(callableConfig);
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}
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}
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private void loadParams(Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator(Node_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(Node_Param_Name);
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String value = element.attributeValue(Node_Param_Value);
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boolean client = Util.StringToBoolean(element.attributeValue(Node_Param_Client));
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Configer.addParam(name, value, client);
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}
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Configer.afterLoadParams();
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}
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private void loadFreeVisit(Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator(Node_FreeVisit);
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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Iterator<?> typeIterator = element.elementIterator(Node_Type);
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while (typeIterator.hasNext()) {
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Element elemnet = (Element) typeIterator.next();
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String type = elemnet.getTextTrim();
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loadOneFreeVisitType(type);
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}
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Iterator<?> resourceIterator = element.elementIterator(Node_Resource);
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while (resourceIterator.hasNext()) {
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Element elemnet = (Element) resourceIterator.next();
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String resource = elemnet.getTextTrim();
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loadOneFreeVisitResource(resource);
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}
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Iterator<?> callIterator = element.elementIterator(Node_Call);
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while (callIterator.hasNext()) {
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Element elemnet = (Element) callIterator.next();
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String call = elemnet.getTextTrim();
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loadOneFreeVisitCall(call);
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}
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Iterator<?> excludeIterator = element.elementIterator(Node_Exclude);
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while (excludeIterator.hasNext()) {
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Element elemnet = (Element) excludeIterator.next();
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String exclude = elemnet.getTextTrim();
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loadOneExcludeResource(exclude);
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}
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}
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}
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private void loadLimitedVisit(Element root) {
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Iterator<?> iterator = root.elementIterator(Node_LimitedVisit);
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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Iterator<?> typeIterator = element.elementIterator(Node_RoleResource);
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while (typeIterator.hasNext()) {
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Element elemnet = (Element) typeIterator.next();
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String role = elemnet.attributeValue(Node_RoleResource_Role);
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String resource = elemnet.attributeValue(Node_RoleResource_Resource);
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userRightContainer.addRoleResource(role, resource);
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}
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}
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}
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private void loadVirtualPathConfig(Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator("virtualPaths");
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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Iterator<?> mappingIterator = element.elementIterator("virtualPath");
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while (mappingIterator.hasNext()) {
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Element elemnet = (Element) mappingIterator.next();
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String path = elemnet.attributeValue("path");
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String target = elemnet.attributeValue("target");
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String className = elemnet.attributeValue("classname");
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VirtualPathConfig virtualPath = new VirtualPathConfig(path, target, className);
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virtualPathList.add(virtualPath);
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}
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}
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}
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private void loadCallableConfig(Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator(Node_Callable);
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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Iterator<?> mappingIterator = element.elementIterator(Node_Mapping);
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while (mappingIterator.hasNext()) {
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Element elemnet = (Element) mappingIterator.next();
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String path = elemnet.attributeValue(Node_Mapping_Path);
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String classname = elemnet.attributeValue(Node_Mapping_ClassName);
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CallableConfig callableConfig = new CallableConfig(path, classname);
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callablList.add(callableConfig);
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}
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}
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}
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private void loadConfigLoader(Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator(Node_ConfigLoader);
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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Iterator<?> configIterator = element.elementIterator(Node_ConfigLoader_Loader);
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while (configIterator.hasNext()) {
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Element loaderEl = (Element) configIterator.next();
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String name = loaderEl.attributeValue(Node_ConfigLoader_Loader_Name);
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String active = loaderEl.attributeValue(Node_ConfigLoader_Loader_Active);
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String classname = loaderEl.attributeValue(Node_ConfigLoader_Loader_ClassName);
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Class<?> clazz = Class.forName(classname);
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ILoader configLoader;
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Method getInstance = null;
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try {
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getInstance = clazz.getDeclaredMethod("getInstance");
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} catch (NoSuchMethodException e) {
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}
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if (getInstance != null) {
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configLoader = (ILoader) getInstance.invoke(null);
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} else {
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configLoader = (ILoader) clazz.newInstance();
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}
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configLoader.setName(name);
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configLoader.setActive(Util.StringToBoolean(active));
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configLoaderContainer.add(configLoader);
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}
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}
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}
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private void loadDataRight(Element root) throws Exception {
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Iterator<?> iterator = root.elementIterator(Node_DataFilter);
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while (iterator.hasNext()) {
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Element element = (Element) iterator.next();
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Iterator<?> filterIterator = element.elementIterator(Node_DataFilter_Filter);
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while (filterIterator.hasNext()) {
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Element filterEl = (Element) filterIterator.next();
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String tablename = filterEl.attributeValue(Node_DataFilter_Filter_TableName);
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String where = filterEl.attributeValue(Node_DataFilter_Filter_Where);
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userRightContainer.addDataRight(tablename, where);
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}
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}
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}
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private void loadOneFreeVisitType(String type) {
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if (Util.isEmptyStr(type)) {
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return;
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}
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mainDispatcher.appendFreeVisitType(type);
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}
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private void loadOneFreeVisitResource(String resource) {
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if (Util.isEmptyStr(resource)) {
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return;
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}
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mainDispatcher.appendFreeVisitResource(resource);
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}
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private void loadOneFreeVisitCall(String call) {
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if (Util.isEmptyStr(call)) {
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return;
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}
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mainDispatcher.appendFreeVisitCalls(call);
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}
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private void loadOneExcludeResource(String exclude) {
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if (Util.isEmptyStr(exclude)) {
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return;
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}
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mainDispatcher.appendExcludeResources(exclude);
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}
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private void loadOneVirtualPath(VirtualPathConfig virtualPath) throws Exception {
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if (virtualPath.invalid()) {
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return;
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}
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mainDispatcher.appendVirtualPaths(virtualPath.getPath(), virtualPath.getTarget(), virtualPath.getClassName());
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}
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private void loadOneDispatch(CallableConfig callableConfig) throws Exception {
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if (callableConfig.invalid()) {
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return;
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}
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mainDispatcher.appendCallableClass(callableConfig.getPath(), callableConfig.getClassName());
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}
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}
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