QuickServer的学习研究（七）

        在项目解析xml的方式很多，常用的如JDOM，dom4j,SAX,DOM,XStream 进行xml的解析，在Struts1.0中解析xml 的方式是通过Commons-Digister实现，同样在QuickServer中也采用同种方式解析相关的方式。

QuickServer中ConfigReader中解析xml的源代码如下：

 public static QuickServerConfig read(File input)
    throws Exception
  {
    Digester digester = new Digester();
    digester.setValidating(false);

    String mainTag = "quickserver";
    String subTag = "";

    digester.addObjectCreate(mainTag, QuickServerConfig.class);
    digester.addBeanPropertySetter(mainTag + "/name", "name");
    digester.addBeanPropertySetter(mainTag + "/server-banner", "serverBanner");
    digester.addBeanPropertySetter(mainTag + "/port", "port");
    digester.addBeanPropertySetter(mainTag + "/bind-address", "bindAddr");

    String curTag = mainTag + "/server-mode";
    digester.addObjectCreate(curTag, ServerMode.class);
    digester.addBeanPropertySetter(curTag + "/blocking", "blocking");
    digester.addSetNext(curTag, "setServerMode");

    digester.addBeanPropertySetter(mainTag + "/client-event-handler", "clientEventHandler");
    digester.addBeanPropertySetter(mainTag + "/client-command-handler", "clientCommandHandler");
    digester.addBeanPropertySetter(mainTag + "/client-object-handler", "clientObjectHandler");
    digester.addBeanPropertySetter(mainTag + "/client-binary-handler", "clientBinaryHandler");
    digester.addBeanPropertySetter(mainTag + "/client-write-handler", "clientWriteHandler");
    digester.addBeanPropertySetter(mainTag + "/authenticator", "authenticator");
    digester.addBeanPropertySetter(mainTag + "/client-authentication-handler", "clientAuthenticationHandler");
    digester.addBeanPropertySetter(mainTag + "/client-data", "clientData");
    digester.addBeanPropertySetter(mainTag + "/client-extended-event-handler", "clientExtendedEventHandler");
    digester.addBeanPropertySetter(mainTag + "/timeout", "timeout");
    digester.addBeanPropertySetter(mainTag + "/timeout-msg", "timeoutMsg");
    digester.addBeanPropertySetter(mainTag + "/max-auth-try", "maxAuthTry");
    digester.addBeanPropertySetter(mainTag + "/max-auth-try-msg", "maxAuthTryMsg");
    digester.addBeanPropertySetter(mainTag + "/max-connection", "maxConnection");
    digester.addBeanPropertySetter(mainTag + "/max-connection-msg", "maxConnectionMsg");
    digester.addBeanPropertySetter(mainTag + "/console-logging-level", "consoleLoggingLevel");
    digester.addBeanPropertySetter(mainTag + "/console-logging-formatter", "consoleLoggingFormatter");

    curTag = mainTag + "/default-data-mode";
    digester.addObjectCreate(curTag, DefaultDataMode.class);
    digester.addBeanPropertySetter(curTag + "/data-type-in", "dataModeIn");
    digester.addBeanPropertySetter(curTag + "/data-type-out", "dataModeOut");
    digester.addSetNext(curTag, "setDefaultDataMode");

    curTag = mainTag + "/object-pool";
    digester.addObjectCreate(curTag, ObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/init-size", "initSize");
    digester.addBeanPropertySetter(curTag + "/pool-manager", "poolManager");

    digester.addObjectCreate(curTag + "/thread-object-pool", ThreadObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/thread-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/thread-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/thread-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/thread-object-pool", "setThreadObjectPoolConfig");

    digester.addObjectCreate(curTag + "/client-handler-object-pool", ClientHandlerObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/client-handler-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/client-handler-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/client-handler-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/client-handler-object-pool", "setClientHandlerObjectPoolConfig");

    digester.addObjectCreate(curTag + "/byte-buffer-object-pool", ByteBufferObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/byte-buffer-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/byte-buffer-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/byte-buffer-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/byte-buffer-object-pool", "setByteBufferObjectPoolConfig");

    digester.addObjectCreate(curTag + "/client-data-object-pool", ClientDataObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/client-data-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/client-data-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/client-data-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/client-data-object-pool", "setClientDataObjectPoolConfig");

    digester.addSetNext(curTag, "setObjectPoolConfig");

    digester.addBeanPropertySetter(mainTag + "/communication-logging/enable", "communicationLogging");

    digester.addBeanPropertySetter(mainTag + "/security-manager-class", "securityManagerClass");

    digester.addObjectCreate(mainTag + "/access-constraint", AccessConstraintConfig.class);

    digester.addObjectCreate(mainTag + "/access-constraint/ip-filter", IpFilterConfig.class);
    digester.addBeanPropertySetter(mainTag + "/access-constraint/ip-filter/enable", "enable");
    digester.addBeanPropertySetter(mainTag + "/access-constraint/ip-filter/allow-access", "allowAccess");

    digester.addCallMethod(mainTag + "/access-constraint/ip-filter/ip-collection/client-ip-address", "addClientIpAddress", 0);

    digester.addSetNext(mainTag + "/access-constraint/ip-filter", "setIpFilterConfig");

    digester.addSetNext(mainTag + "/access-constraint", "setAccessConstraintConfig");

    digester.addBeanPropertySetter(mainTag + "/application-jar-path", "applicationJarPath");

    digester.addObjectCreate(mainTag + "/server-hooks", ServerHooks.class);
    digester.addCallMethod(mainTag + "/server-hooks/class-name", "addClassName", 0);
    digester.addSetNext(mainTag + "/server-hooks", "setServerHooks");

    curTag = mainTag + "/secure";
    digester.addObjectCreate(curTag, Secure.class);
    digester.addBeanPropertySetter(curTag + "/enable", "enable");
    digester.addBeanPropertySetter(curTag + "/load", "load");
    digester.addBeanPropertySetter(curTag + "/port", "port");
    digester.addBeanPropertySetter(curTag + "/protocol", "protocol");
    digester.addBeanPropertySetter(curTag + "/client-auth-enable", "clientAuthEnable");

    digester.addObjectCreate(curTag + "/secure-store", SecureStore.class);
    digester.addBeanPropertySetter(curTag + "/secure-store/type", "type");
    digester.addBeanPropertySetter(curTag + "/secure-store/algorithm", "algorithm");
    digester.addBeanPropertySetter(curTag + "/secure-store/provider", "provider");

    digester.addObjectCreate(curTag + "/secure-store/key-store-info", KeyStoreInfo.class);
    digester.addBeanPropertySetter(curTag + "/secure-store/key-store-info/store-file", "storeFile");
    digester.addBeanPropertySetter(curTag + "/secure-store/key-store-info/store-password", "storePassword");
    digester.addBeanPropertySetter(curTag + "/secure-store/key-store-info/key-password", "keyPassword");
    digester.addSetNext(curTag + "/secure-store/key-store-info", "setKeyStoreInfo");

    digester.addObjectCreate(curTag + "/secure-store/trust-store-info", TrustStoreInfo.class);
    digester.addBeanPropertySetter(curTag + "/secure-store/trust-store-info/store-file", "storeFile");
    digester.addBeanPropertySetter(curTag + "/secure-store/trust-store-info/store-password", "storePassword");
    digester.addBeanPropertySetter(curTag + "/secure-store/trust-store-info/type", "type");
    digester.addBeanPropertySetter(curTag + "/secure-store/trust-store-info/provider", "provider");
    digester.addSetNext(curTag + "/secure-store/trust-store-info", "setTrustStoreInfo");

    digester.addBeanPropertySetter(curTag + "/secure-store/secure-store-manager", "secureStoreManager");
    digester.addSetNext(curTag + "/secure-store", "setSecureStore");

    digester.addSetNext(curTag, "setSecure");

    curTag = mainTag + "/advanced-settings";
    digester.addObjectCreate(curTag, AdvancedSettings.class);
    digester.addBeanPropertySetter(curTag + "/charset", "charset");
    digester.addBeanPropertySetter(curTag + "/byte-buffer-size", "byteBufferSize");
    digester.addBeanPropertySetter(curTag + "/backlog", "backlog");
    digester.addBeanPropertySetter(curTag + "/use-direct-byte-buffer", "useDirectByteBuffer");
    digester.addBeanPropertySetter(curTag + "/socket-linger", "socketLinger");
    digester.addBeanPropertySetter(curTag + "/debug-non-blocking-mode", "debugNonBlockingMode");
    digester.addBeanPropertySetter(curTag + "/client-identifier", "clientIdentifier");
    digester.addBeanPropertySetter(curTag + "/qsobject-pool-maker", "qSObjectPoolMaker");
    digester.addBeanPropertySetter(curTag + "/max-threads-for-nio-write", "maxThreadsForNioWrite");
    digester.addSetNext(curTag, "setAdvancedSettings");

    subTag = "qsadmin-server";
    curTag = mainTag + "/" + subTag;
    digester.addObjectCreate(curTag, QSAdminServerConfig.class);
    digester.addBeanPropertySetter(curTag + "/name", "name");
    digester.addBeanPropertySetter(curTag + "/server-banner", "serverBanner");
    digester.addBeanPropertySetter(curTag + "/port", "port");

    digester.addObjectCreate(curTag + "/server-mode", ServerMode.class);
    digester.addBeanPropertySetter(curTag + "/server-mode/blocking", "blocking");
    digester.addSetNext(curTag + "/server-mode", "setServerMode");

    digester.addBeanPropertySetter(curTag + "/client-event-handler", "clientEventHandler");
    digester.addBeanPropertySetter(curTag + "/client-command-handler", "clientCommandHandler");
    digester.addBeanPropertySetter(curTag + "/client-object-handler", "clientObjectHandler");
    digester.addBeanPropertySetter(curTag + "/client-binary-handler", "clientBinaryHandler");
    digester.addBeanPropertySetter(curTag + "/client-write-handler", "clientWriteHandler");
    digester.addBeanPropertySetter(curTag + "/authenticator", "authenticator");
    digester.addBeanPropertySetter(curTag + "/client-authentication-handler", "clientAuthenticationHandler");
    digester.addBeanPropertySetter(curTag + "/client-data", "clientData");
    digester.addBeanPropertySetter(curTag + "/client-extended-event-handler", "clientExtendedEventHandler");
    digester.addBeanPropertySetter(curTag + "/timeout", "timeout");
    digester.addBeanPropertySetter(curTag + "/max-auth-try", "maxAuthTry");
    digester.addBeanPropertySetter(curTag + "/max-auth-try-msg", "maxAuthTryMsg");
    digester.addBeanPropertySetter(curTag + "/timeout-msg", "timeoutMsg");
    digester.addBeanPropertySetter(curTag + "/max-connection", "maxConnection");
    digester.addBeanPropertySetter(curTag + "/max-connection-msg", "maxConnectionMsg");
    digester.addBeanPropertySetter(curTag + "/bind-address", "bindAddr");
    digester.addBeanPropertySetter(curTag + "/client-object-handler", "clientObjectHandler");
    digester.addBeanPropertySetter(curTag + "/console-logging-level", "consoleLoggingLevel");
    digester.addBeanPropertySetter(curTag + "/console-logging-formatter", "consoleLoggingFormatter");

    digester.addObjectCreate(curTag + "/default-data-mode", DefaultDataMode.class);
    digester.addBeanPropertySetter(curTag + "/default-data-mode/data-type-in", "dataModeIn");
    digester.addBeanPropertySetter(curTag + "/default-data-mode/data-type-out", "dataModeOut");
    digester.addSetNext(curTag + "/default-data-mode", "setDefaultDataMode");

    digester.addObjectCreate(curTag + "/object-pool", ObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/object-pool/init-size", "initSize");
    digester.addBeanPropertySetter(curTag + "/object-pool/pool-manager", "poolManager");

    digester.addObjectCreate(curTag + "/object-pool/thread-object-pool", ThreadObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/object-pool/thread-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/object-pool/thread-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/object-pool/thread-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/object-pool/thread-object-pool", "setThreadObjectPoolConfig");

    digester.addObjectCreate(curTag + "/object-pool/client-handler-object-pool", ClientHandlerObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/object-pool/client-handler-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/object-pool/client-handler-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/object-pool/client-handler-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/object-pool/client-handler-object-pool", "setClientHandlerObjectPoolConfig");

    digester.addObjectCreate(curTag + "/object-pool/byte-buffer-object-pool", ByteBufferObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/object-pool/byte-buffer-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/object-pool/byte-buffer-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/object-pool/byte-buffer-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/object-pool/byte-buffer-object-pool", "setByteBufferObjectPoolConfig");

    digester.addObjectCreate(curTag + "/object-pool/client-data-object-pool", ClientDataObjectPoolConfig.class);
    digester.addBeanPropertySetter(curTag + "/object-pool/client-data-object-pool/max-active", "maxActive");
    digester.addBeanPropertySetter(curTag + "/object-pool/client-data-object-pool/max-idle", "maxIdle");
    digester.addBeanPropertySetter(curTag + "/object-pool/client-data-object-pool/init-size", "initSize");
    digester.addSetNext(curTag + "/object-pool/client-data-object-pool", "setClientDataObjectPoolConfig");

    digester.addSetNext(curTag + "/object-pool", "setObjectPoolConfig");

    digester.addBeanPropertySetter(curTag + "/command-shell/enable", "commandShellEnable");
    digester.addBeanPropertySetter(curTag + "/command-shell/prompt-name", "commandShellPromptName");

    digester.addBeanPropertySetter(curTag + "/communication-logging/enable", "communicationLogging");

    digester.addObjectCreate(curTag + "/access-constraint", AccessConstraintConfig.class);

    digester.addObjectCreate(curTag + "/access-constraint/ip-filter", IpFilterConfig.class);
    digester.addBeanPropertySetter(curTag + "/access-constraint/ip-filter/enable", "enable");
    digester.addBeanPropertySetter(curTag + "/access-constraint/ip-filter/allow-access", "allowAccess");

    digester.addCallMethod(curTag + "/access-constraint/ip-filter/ip-collection/client-ip-address", "addClientIpAddress", 0);

    digester.addSetNext(curTag + "/access-constraint/ip-filter", "setIpFilterConfig");

    digester.addSetNext(curTag + "/access-constraint", "setAccessConstraintConfig");

    digester.addObjectCreate(curTag + "/server-hooks", ServerHooks.class);
    digester.addCallMethod(curTag + "/server-hooks/class-name", "addClassName", 0);
    digester.addSetNext(curTag + "/server-hooks", "setServerHooks");

    digester.addObjectCreate(curTag + "/secure", Secure.class);
    digester.addBeanPropertySetter(curTag + "/secure/enable", "enable");
    digester.addBeanPropertySetter(curTag + "/secure/load", "load");
    digester.addBeanPropertySetter(curTag + "/secure/port", "port");
    digester.addBeanPropertySetter(curTag + "/secure/protocol", "protocol");
    digester.addBeanPropertySetter(curTag + "/secure/client-auth-enable", "clientAuthEnable");

    digester.addObjectCreate(curTag + "/secure/secure-store", SecureStore.class);
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/type", "type");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/algorithm", "algorithm");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/provider", "provider");

    digester.addObjectCreate(curTag + "/secure/secure-store/key-store-info", KeyStoreInfo.class);
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/key-store-info/store-file", "storeFile");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/key-store-info/store-password", "storePassword");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/key-store-info/key-password", "keyPassword");
    digester.addSetNext(curTag + "/secure/secure-store/key-store-info", "setKeyStoreInfo");

    digester.addObjectCreate(curTag + "/secure/secure-store/trust-store-info", TrustStoreInfo.class);
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/trust-store-info/store-file", "storeFile");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/trust-store-info/store-password", "storePassword");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/trust-store-info/type", "type");
    digester.addBeanPropertySetter(curTag + "/secure/secure-store/trust-store-info/provider", "provider");
    digester.addSetNext(curTag + "/secure/secure-store/trust-store-info", "setTrustStoreInfo");

    digester.addBeanPropertySetter(curTag + "/secure/secure-store/secure-store-manager", "secureStoreManager");
    digester.addSetNext(curTag + "/secure/secure-store", "setSecureStore");

    digester.addSetNext(curTag + "/secure", "setSecure");

    digester.addBeanPropertySetter(curTag + "/command-plugin", "commandPlugin");

    digester.addObjectCreate(curTag + "/advanced-settings", AdvancedSettings.class);
    digester.addBeanPropertySetter(curTag + "/advanced-settings/charset", "charset");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/byte-buffer-size", "byteBufferSize");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/backlog", "backlog");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/use-direct-byte-buffer", "useDirectByteBuffer");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/socket-linger", "socketLinger");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/debug-non-blocking-mode", "debugNonBlockingMode");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/client-identifier", "clientIdentifier");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/qsobject-pool-maker", "qSObjectPoolMaker");
    digester.addBeanPropertySetter(curTag + "/advanced-settings/max-threads-for-nio-write", "maxThreadsForNioWrite");
    digester.addSetNext(curTag + "/advanced-settings", "setAdvancedSettings");

    digester.addSetNext(curTag, "setQSAdminServerConfig");

    subTag = "db-object-pool";
    digester.addObjectCreate(mainTag + "/" + subTag, DBObjectPoolConfig.class);

    digester.addObjectCreate(mainTag + "/" + subTag + "/database-connection-set", DatabaseConnectionSet.class);

    curTag = mainTag + "/" + subTag + "/database-connection-set/database-connection";
    digester.addObjectCreate(curTag, DatabaseConnectionConfig.class);
    digester.addBeanPropertySetter(curTag + "/id", "id");
    digester.addBeanPropertySetter(curTag + "/driver", "driver");
    digester.addBeanPropertySetter(curTag + "/url", "url");
    digester.addBeanPropertySetter(curTag + "/username", "username");
    digester.addBeanPropertySetter(curTag + "/password", "password");
    digester.addSetNext(curTag, "addDatabaseConnection");

    digester.addSetNext(mainTag + "/" + subTag + "/database-connection-set", "setDatabaseConnectionSet");

    curTag = mainTag + "/" + subTag + "/db-pool-util";
    digester.addBeanPropertySetter(curTag, "dbPoolUtil");

    digester.addSetNext(mainTag + "/" + subTag, "setDBObjectPoolConfig");

    subTag = "application-configuration";
    digester.addObjectCreate(mainTag + "/" + subTag, ApplicationConfiguration.class);
    digester.addBeanPropertySetter(mainTag + "/" + subTag + "/prompt-type", "promptType");
    curTag = mainTag + "/" + subTag + "/" + "property";
    digester.addObjectCreate(curTag, Property.class);
    digester.addBeanPropertySetter(curTag + "/property-name", "name");
    digester.addBeanPropertySetter(curTag + "/property-value", "value");
    digester.addSetNext(curTag, "addProperty");
    digester.addSetNext(mainTag + "/" + subTag, "setApplicationConfiguration");

    subTag = "init-server-hooks";
    digester.addObjectCreate(mainTag + "/" + subTag, InitServerHooks.class);
    digester.addCallMethod(mainTag + "/" + subTag + "/class-name", "addClassName", 0);

    digester.addSetNext(mainTag + "/" + subTag, "setInitServerHooks");

    logger.fine("Loading config from xml file : " + input.getAbsolutePath());
    QuickServerConfig qsc = (QuickServerConfig)digester.parse(input);
    qsc.setConfigFile(input.getAbsolutePath());

    loadMissingApplicationConfiguration(qsc);

    QuickServer.setDebugNonBlockingMode(qsc.getAdvancedSettings().getDebugNonBlockingMode());

    return qsc;
  }