dubbo-config/src/main/java/com/alibaba/dubbo/config/AbstractConfig.java - dubbo - Git at Google

 /*
  * Copyright 1999-2011 Alibaba Group.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package com.alibaba.dubbo.config;

 import java.io.Serializable;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

 import com.alibaba.dubbo.common.Constants;
 import com.alibaba.dubbo.common.URL;
 import com.alibaba.dubbo.common.extension.ExtensionLoader;
 import com.alibaba.dubbo.common.logger.Logger;
 import com.alibaba.dubbo.common.logger.LoggerFactory;
 import com.alibaba.dubbo.common.utils.ConfigUtils;
 import com.alibaba.dubbo.common.utils.StringUtils;

 /**
  * AbstractConfig
  *
  * @author william.liangf
  */
 public abstract class AbstractConfig implements Serializable {

     private static final long serialVersionUID = 4267533505537413570L;

     protected static final Logger logger = LoggerFactory.getLogger(AbstractConfig.class);

     private static final int MAX_LENGTH = 100;

     private static final int MAX_PATH_LENGTH = 200;

     private static final Pattern PATTERN_NAME = Pattern.compile("[\\-._0-9a-zA-Z]+");

     private static final Pattern PATTERN_MULTI_NAME = Pattern.compile("[,\\-._0-9a-zA-Z]+");

     private static final Pattern PATTERN_METHOD_NAME = Pattern.compile("[a-zA-Z][0-9a-zA-Z]*");

     private static final Pattern PATTERN_PATH = Pattern.compile("[/\\-$._0-9a-zA-Z]+");

     private static final Pattern PATTERN_NAME_HAS_SYMBOL = Pattern.compile("[:*,/\\-._0-9a-zA-Z]+");

     private static final Pattern PATTERN_KEY = Pattern.compile("[*,\\-._0-9a-zA-Z]+");

     protected String id;

     @Parameter(excluded = true)
     public String getId() {
         return id;
     }

     public void setId(String id) {
         this.id = id;
     }

     private static final Map<String, String> legacyProperties = new HashMap<String, String>();
     static {
         legacyProperties.put("dubbo.protocol.name", "dubbo.service.protocol");
         legacyProperties.put("dubbo.protocol.host", "dubbo.service.server.host");
         legacyProperties.put("dubbo.protocol.port", "dubbo.service.server.port");
         legacyProperties.put("dubbo.protocol.threads", "dubbo.service.max.thread.pool.size");
         legacyProperties.put("dubbo.consumer.timeout", "dubbo.service.invoke.timeout");
         legacyProperties.put("dubbo.consumer.retries", "dubbo.service.max.retry.providers");
         legacyProperties.put("dubbo.consumer.check", "dubbo.service.allow.no.provider");
         legacyProperties.put("dubbo.service.url", "dubbo.service.address");
     }

     private static String convertLegacyValue(String key, String value) {
         if (value != null && value.length() > 0) {
             if ("dubbo.service.max.retry.providers".equals(key)) {
                 return String.valueOf(Integer.parseInt(value) - 1);
             } else if ("dubbo.service.allow.no.provider".equals(key)) {
                 return String.valueOf(! Boolean.parseBoolean(value));
             }
         }
         return value;
     }

     protected static void appendProperties(AbstractConfig config) {
         if (config == null) {
             return;
         }
         String prefix = "dubbo." + getTagName(config.getClass()) + ".";
         Method[] methods = config.getClass().getMethods();
         for (Method method : methods) {
             try {
                 String name = method.getName();
                 if (name.length() > 3 && name.startsWith("set") && Modifier.isPublic(method.getModifiers())
                         && method.getParameterTypes().length == 1 && isPrimitive(method.getParameterTypes()[0])) {
                     String property = StringUtils.camelToSplitName(name.substring(3, 4).toLowerCase() + name.substring(4), "-");
                     String value = null;
                     if (config.getId() != null && config.getId().length() > 0) {
                         value = System.getProperty(prefix + config.getId() + "." + property);
                     }
                     if (value == null || value.length() == 0) {
                         value = System.getProperty(prefix + property);
                     }
                     if (value == null || value.length() == 0) {
                         Method getter;
                         try {
                             getter = config.getClass().getMethod("get" + name.substring(3), new Class<?>[0]);
                         } catch (NoSuchMethodException e) {
                             try {
                                 getter = config.getClass().getMethod("is" + name.substring(3), new Class<?>[0]);
                             } catch (NoSuchMethodException e2) {
                                 getter = null;
                             }
                         }
                         if (getter != null) {
                             if (getter.invoke(config, new Object[0]) == null) {
                                 if (config.getId() != null && config.getId().length() > 0) {
                                     value = ConfigUtils.getProperty(prefix + config.getId() + "." + property);
                                 }
                                 if (value == null || value.length() == 0) {
                                     value = ConfigUtils.getProperty(prefix + property);
                                 }
                                 if (value == null || value.length() == 0) {
                                     String legacyKey = legacyProperties.get(prefix + property);
                                     if (legacyKey != null && legacyKey.length() > 0) {
                                         value = convertLegacyValue(legacyKey, ConfigUtils.getProperty(legacyKey));
                                     }
                                 }

                             }
                         }
                     }
                     if (value != null && value.length() > 0) {
                         method.invoke(config, new Object[] {convertPrimitive(method.getParameterTypes()[0], value)});
                     }
                 }
             } catch (Exception e) {
                 logger.error(e.getMessage(), e);
             }
         }
     }

     private static String getTagName(Class<?> cls) {
         String tag = cls.getSimpleName();
         for (String suffix : SUFFIXS) {
             if (tag.endsWith(suffix)) {
                 tag = tag.substring(0, tag.length() - suffix.length());
                 break;
             }
         }
         tag = tag.toLowerCase();
         return tag;
     }

     protected static void appendParameters(Map<String, String> parameters, Object config) {
         appendParameters(parameters, config, null);
     }

     @SuppressWarnings("unchecked")
     protected static void appendParameters(Map<String, String> parameters, Object config, String prefix) {
         if (config == null) {
             return;
         }
         Method[] methods = config.getClass().getMethods();
         for (Method method : methods) {
             try {
                 String name = method.getName();
                 if ((name.startsWith("get") || name.startsWith("is"))
                         && ! "getClass".equals(name)
                         && Modifier.isPublic(method.getModifiers())
                         && method.getParameterTypes().length == 0
                         && isPrimitive(method.getReturnType())) {
                     Parameter parameter = method.getAnnotation(Parameter.class);
                     if (method.getReturnType() == Object.class || parameter != null && parameter.excluded()) {
                         continue;
                     }
                     int i = name.startsWith("get") ? 3 : 2;
                     String prop = StringUtils.camelToSplitName(name.substring(i, i + 1).toLowerCase() + name.substring(i + 1), ".");
                     String key;
                     if (parameter != null && parameter.key() != null && parameter.key().length() > 0) {
                         key = parameter.key();
                     } else {
                         key = prop;
                     }
                     Object value = method.invoke(config, new Object[0]);
                     String str = String.valueOf(value).trim();
                     if (value != null && str.length() > 0) {
                         if (parameter != null && parameter.escaped()) {
                             str = URL.encode(str);
                         }
                         if (parameter != null && parameter.append()) {
                             String pre = (String)parameters.get(Constants.DEFAULT_KEY + "." + key);
                             if (pre != null && pre.length() > 0) {
                                 str = pre + "," + str;
                             }
                             pre = (String)parameters.get(key);
                             if (pre != null && pre.length() > 0) {
                                 str = pre + "," + str;
                             }
                         }
                         if (prefix != null && prefix.length() > 0) {
                             key = prefix + "." + key;
                         }
                         parameters.put(key, str);
                     } else if (parameter != null && parameter.required()) {
                         throw new IllegalStateException(config.getClass().getSimpleName() + "." + key + " == null");
                     }
                 } else if ("getParameters".equals(name)
                         && Modifier.isPublic(method.getModifiers())
                         && method.getParameterTypes().length == 0
                         && method.getReturnType() == Map.class) {
                     Map<String, String> map = (Map<String, String>) method.invoke(config, new Object[0]);
                     if (map != null && map.size() > 0) {
                         String pre = (prefix != null && prefix.length() > 0 ? prefix + "." : "");
                         for (Map.Entry<String, String> entry : map.entrySet()) {
                             parameters.put(pre + entry.getKey().replace('-', '.'), entry.getValue());
                         }
                     }
                 }
             } catch (Exception e) {
                 throw new IllegalStateException(e.getMessage(), e);
             }
         }
     }

     protected static void appendAttributes(Map<Object, Object> parameters, Object config) {
         appendAttributes(parameters, config, null);
     }

     protected static void appendAttributes(Map<Object, Object> parameters, Object config, String prefix) {
         if (config == null) {
             return;
         }
         Method[] methods = config.getClass().getMethods();
         for (Method method : methods) {
             try {
                 String name = method.getName();
                 if ((name.startsWith("get") || name.startsWith("is"))
                         && ! "getClass".equals(name)
                         && Modifier.isPublic(method.getModifiers())
                         && method.getParameterTypes().length == 0
                         && isPrimitive(method.getReturnType())) {
                     Parameter parameter = method.getAnnotation(Parameter.class);
                     if (parameter == null || !parameter.attribute())
                         continue;
                     String key;
                     if (parameter != null && parameter.key() != null && parameter.key().length() > 0) {
                         key = parameter.key();
                     } else {
                         int i = name.startsWith("get") ? 3 : 2;
                         key = name.substring(i, i + 1).toLowerCase() + name.substring(i + 1);
                     }
                     Object value = method.invoke(config, new Object[0]);
                     if (value != null) {
                         if (prefix != null && prefix.length() > 0) {
                             key = prefix + "." + key;
                         }
                         parameters.put(key, value);
                     }
                 }
             } catch (Exception e) {
                 throw new IllegalStateException(e.getMessage(), e);
             }
         }
     }

     private static boolean isPrimitive(Class<?> type) {
         return type.isPrimitive()
                 || type == String.class
                 || type == Character.class
                 || type == Boolean.class
                 || type == Byte.class
                 || type == Short.class
                 || type == Integer.class
                 || type == Long.class
                 || type == Float.class
                 || type == Double.class
                 || type == Object.class;
     }

     private static Object convertPrimitive(Class<?> type, String value) {
         if (type == char.class || type == Character.class) {
             return value.length() > 0 ? value.charAt(0) : '\0';
         } else if (type == boolean.class || type == Boolean.class) {
             return Boolean.valueOf(value);
         } else if (type == byte.class || type == Byte.class) {
             return Byte.valueOf(value);
         } else if (type == short.class || type == Short.class) {
             return Short.valueOf(value);
         } else if (type == int.class || type == Integer.class) {
             return Integer.valueOf(value);
         } else if (type == long.class || type == Long.class) {
             return Long.valueOf(value);
         } else if (type == float.class || type == Float.class) {
             return Float.valueOf(value);
         } else if (type == double.class || type == Double.class) {
             return Double.valueOf(value);
         }
         return value;
     }

     protected static void checkExtension(Class<?> type, String property, String value) {
         checkName(property, value);
         if (value != null && value.length() > 0
                 && ! ExtensionLoader.getExtensionLoader(type).hasExtension(value)) {
             throw new IllegalStateException("No such extension " + value + " for " + property + "/" + type.getName());
         }
     }

     protected static void checkMultiExtension(Class<?> type, String property, String value) {
         checkMultiName(property, value);
         if (value != null && value.length() > 0) {
             String[] values = value.split("\\s*[,]+\\s*");
             for (String v : values) {
                 if (v.startsWith(Constants.REMOVE_VALUE_PREFIX)) {
                     v = v.substring(1);
                 }
                 if (! ExtensionLoader.getExtensionLoader(type).hasExtension(v)) {
                     throw new IllegalStateException("No such extension " + v + " for " + property + "/" + type.getName());
                 }
             }
         }
     }

     protected static void checkLength(String property, String value) {
         checkProperty(property, value, MAX_LENGTH, null);
     }

     protected static void checkPathLength(String property, String value) {
         checkProperty(property, value, MAX_PATH_LENGTH, null);
     }

     protected static void checkName(String property, String value) {
         checkProperty(property, value, MAX_LENGTH, PATTERN_NAME);
     }

     protected static void checkNameHasSymbol(String property, String value) {
         checkProperty(property, value, MAX_LENGTH, PATTERN_NAME_HAS_SYMBOL);
     }

     protected static void checkKey(String property, String value) {
         checkProperty(property, value, MAX_LENGTH, PATTERN_KEY);
     }

     protected static void checkMultiName(String property, String value) {
         checkProperty(property, value, MAX_LENGTH, PATTERN_MULTI_NAME);
     }

     protected static void checkPathName(String property, String value) {
         checkProperty(property, value, MAX_PATH_LENGTH, PATTERN_PATH);
     }

     protected static void checkMethodName(String property, String value) {
         checkProperty(property, value, MAX_LENGTH, PATTERN_METHOD_NAME);
     }

     protected static void checkParameterName(Map<String, String> parameters) {
         if (parameters == null || parameters.size() == 0) {
             return;
         }
         for (Map.Entry<String, String> entry : parameters.entrySet()) {
             //change by tony.chenl parameter value maybe has colon.for example napoli address
             checkNameHasSymbol(entry.getKey(), entry.getValue());
         }
     }

     protected static void checkProperty(String property, String value, int maxlength, Pattern pattern) {
         if (value == null || value.length() == 0) {
             return;
         }
         if(value.length() > maxlength){
             throw new IllegalStateException("Invalid " + property + "=\"" + value + "\" is longer than " + maxlength);
         }
         if (pattern != null) {
             Matcher matcher = pattern.matcher(value);
             if(! matcher.matches()) {
                 throw new IllegalStateException("Invalid " + property + "=\"" + value + "\" contain illegal charactor, only digit, letter, '-', '_' and '.' is legal.");
             }
         }
     }

     static {
         Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
             public void run() {
                 if (logger.isInfoEnabled()) {
                     logger.info("Run shutdown hook now.");
                 }
                 ProtocolConfig.destroyAll();
             }
         }, "DubboShutdownHook"));
     }

     private static final String[] SUFFIXS = new String[] {"Config", "Bean"};

     @Override
     public String toString() {
         try {
             StringBuilder buf = new StringBuilder();
             buf.append("<dubbo:");
             buf.append(getTagName(getClass()));
             Method[] methods = getClass().getMethods();
             for (Method method : methods) {
                 try {
                     String name = method.getName();
                     if ((name.startsWith("get") || name.startsWith("is"))
                             && ! "getClass".equals(name) && ! "get".equals(name) && ! "is".equals(name)
                             && Modifier.isPublic(method.getModifiers())
                             && method.getParameterTypes().length == 0
                             && isPrimitive(method.getReturnType())) {
                         int i = name.startsWith("get") ? 3 : 2;
                         String key = name.substring(i, i + 1).toLowerCase() + name.substring(i + 1);
                         Object value = method.invoke(this, new Object[0]);
                         if (value != null) {
                             buf.append(" ");
                             buf.append(key);
                             buf.append("=\"");
                             buf.append(value);
                             buf.append("\"");
                         }
                     }
                 } catch (Exception e) {
                     logger.warn(e.getMessage(), e);
                 }
             }
             buf.append(" />");
             return buf.toString();
         } catch (Throwable t) { // 防御性容错
             logger.warn(t.getMessage(), t);
             return super.toString();
         }
     }

 }
	/*
	* Copyright 1999-2011 Alibaba Group.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package com.alibaba.dubbo.config;

	import java.io.Serializable;
	import java.lang.reflect.Method;
	import java.lang.reflect.Modifier;
	import java.util.HashMap;
	import java.util.Map;
	import java.util.regex.Matcher;
	import java.util.regex.Pattern;

	import com.alibaba.dubbo.common.Constants;
	import com.alibaba.dubbo.common.URL;
	import com.alibaba.dubbo.common.extension.ExtensionLoader;
	import com.alibaba.dubbo.common.logger.Logger;
	import com.alibaba.dubbo.common.logger.LoggerFactory;
	import com.alibaba.dubbo.common.utils.ConfigUtils;
	import com.alibaba.dubbo.common.utils.StringUtils;

	/**
	* AbstractConfig
	*
	* @author william.liangf
	*/
	public abstract class AbstractConfig implements Serializable {

	private static final long serialVersionUID = 4267533505537413570L;

	protected static final Logger logger = LoggerFactory.getLogger(AbstractConfig.class);

	private static final int MAX_LENGTH = 100;

	private static final int MAX_PATH_LENGTH = 200;

	private static final Pattern PATTERN_NAME = Pattern.compile("[\\-._0-9a-zA-Z]+");

	private static final Pattern PATTERN_MULTI_NAME = Pattern.compile("[,\\-._0-9a-zA-Z]+");

	private static final Pattern PATTERN_METHOD_NAME = Pattern.compile("[a-zA-Z][0-9a-zA-Z]*");

	private static final Pattern PATTERN_PATH = Pattern.compile("[/\\-$._0-9a-zA-Z]+");

	private static final Pattern PATTERN_NAME_HAS_SYMBOL = Pattern.compile("[:*,/\\-._0-9a-zA-Z]+");

	private static final Pattern PATTERN_KEY = Pattern.compile("[*,\\-._0-9a-zA-Z]+");

	protected String id;

	@Parameter(excluded = true)
	public String getId() {
	return id;
	}

	public void setId(String id) {
	this.id = id;
	}

	private static final Map<String, String> legacyProperties = new HashMap<String, String>();
	static {
	legacyProperties.put("dubbo.protocol.name", "dubbo.service.protocol");
	legacyProperties.put("dubbo.protocol.host", "dubbo.service.server.host");
	legacyProperties.put("dubbo.protocol.port", "dubbo.service.server.port");
	legacyProperties.put("dubbo.protocol.threads", "dubbo.service.max.thread.pool.size");
	legacyProperties.put("dubbo.consumer.timeout", "dubbo.service.invoke.timeout");
	legacyProperties.put("dubbo.consumer.retries", "dubbo.service.max.retry.providers");
	legacyProperties.put("dubbo.consumer.check", "dubbo.service.allow.no.provider");
	legacyProperties.put("dubbo.service.url", "dubbo.service.address");
	}

	private static String convertLegacyValue(String key, String value) {
	if (value != null && value.length() > 0) {
	if ("dubbo.service.max.retry.providers".equals(key)) {
	return String.valueOf(Integer.parseInt(value) - 1);
	} else if ("dubbo.service.allow.no.provider".equals(key)) {
	return String.valueOf(! Boolean.parseBoolean(value));
	}
	}
	return value;
	}

	protected static void appendProperties(AbstractConfig config) {
	if (config == null) {
	return;
	}
	String prefix = "dubbo." + getTagName(config.getClass()) + ".";
	Method[] methods = config.getClass().getMethods();
	for (Method method : methods) {
	try {
	String name = method.getName();
	if (name.length() > 3 && name.startsWith("set") && Modifier.isPublic(method.getModifiers())
	&& method.getParameterTypes().length == 1 && isPrimitive(method.getParameterTypes()[0])) {
	String property = StringUtils.camelToSplitName(name.substring(3, 4).toLowerCase() + name.substring(4), "-");
	String value = null;
	if (config.getId() != null && config.getId().length() > 0) {
	value = System.getProperty(prefix + config.getId() + "." + property);
	}
	if (value == null \|\| value.length() == 0) {
	value = System.getProperty(prefix + property);
	}
	if (value == null \|\| value.length() == 0) {
	Method getter;
	try {
	getter = config.getClass().getMethod("get" + name.substring(3), new Class<?>[0]);
	} catch (NoSuchMethodException e) {
	try {
	getter = config.getClass().getMethod("is" + name.substring(3), new Class<?>[0]);
	} catch (NoSuchMethodException e2) {
	getter = null;
	}
	}
	if (getter != null) {
	if (getter.invoke(config, new Object[0]) == null) {
	if (config.getId() != null && config.getId().length() > 0) {
	value = ConfigUtils.getProperty(prefix + config.getId() + "." + property);
	}
	if (value == null \|\| value.length() == 0) {
	value = ConfigUtils.getProperty(prefix + property);
	}
	if (value == null \|\| value.length() == 0) {
	String legacyKey = legacyProperties.get(prefix + property);
	if (legacyKey != null && legacyKey.length() > 0) {
	value = convertLegacyValue(legacyKey, ConfigUtils.getProperty(legacyKey));
	}
	}

	}
	}
	}
	if (value != null && value.length() > 0) {
	method.invoke(config, new Object[] {convertPrimitive(method.getParameterTypes()[0], value)});
	}
	}
	} catch (Exception e) {
	logger.error(e.getMessage(), e);
	}
	}
	}

	private static String getTagName(Class<?> cls) {
	String tag = cls.getSimpleName();
	for (String suffix : SUFFIXS) {
	if (tag.endsWith(suffix)) {
	tag = tag.substring(0, tag.length() - suffix.length());
	break;
	}
	}
	tag = tag.toLowerCase();
	return tag;
	}

	protected static void appendParameters(Map<String, String> parameters, Object config) {
	appendParameters(parameters, config, null);
	}

	@SuppressWarnings("unchecked")
	protected static void appendParameters(Map<String, String> parameters, Object config, String prefix) {
	if (config == null) {
	return;
	}
	Method[] methods = config.getClass().getMethods();
	for (Method method : methods) {
	try {
	String name = method.getName();
	if ((name.startsWith("get") \|\| name.startsWith("is"))
	&& ! "getClass".equals(name)
	&& Modifier.isPublic(method.getModifiers())
	&& method.getParameterTypes().length == 0
	&& isPrimitive(method.getReturnType())) {
	Parameter parameter = method.getAnnotation(Parameter.class);
	if (method.getReturnType() == Object.class \|\| parameter != null && parameter.excluded()) {
	continue;
	}
	int i = name.startsWith("get") ? 3 : 2;
	String prop = StringUtils.camelToSplitName(name.substring(i, i + 1).toLowerCase() + name.substring(i + 1), ".");
	String key;
	if (parameter != null && parameter.key() != null && parameter.key().length() > 0) {
	key = parameter.key();
	} else {
	key = prop;
	}
	Object value = method.invoke(config, new Object[0]);
	String str = String.valueOf(value).trim();
	if (value != null && str.length() > 0) {
	if (parameter != null && parameter.escaped()) {
	str = URL.encode(str);
	}
	if (parameter != null && parameter.append()) {
	String pre = (String)parameters.get(Constants.DEFAULT_KEY + "." + key);
	if (pre != null && pre.length() > 0) {
	str = pre + "," + str;
	}
	pre = (String)parameters.get(key);
	if (pre != null && pre.length() > 0) {
	str = pre + "," + str;
	}
	}
	if (prefix != null && prefix.length() > 0) {
	key = prefix + "." + key;
	}
	parameters.put(key, str);
	} else if (parameter != null && parameter.required()) {
	throw new IllegalStateException(config.getClass().getSimpleName() + "." + key + " == null");
	}
	} else if ("getParameters".equals(name)
	&& Modifier.isPublic(method.getModifiers())
	&& method.getParameterTypes().length == 0
	&& method.getReturnType() == Map.class) {
	Map<String, String> map = (Map<String, String>) method.invoke(config, new Object[0]);
	if (map != null && map.size() > 0) {
	String pre = (prefix != null && prefix.length() > 0 ? prefix + "." : "");
	for (Map.Entry<String, String> entry : map.entrySet()) {
	parameters.put(pre + entry.getKey().replace('-', '.'), entry.getValue());
	}
	}
	}
	} catch (Exception e) {
	throw new IllegalStateException(e.getMessage(), e);
	}
	}
	}

	protected static void appendAttributes(Map<Object, Object> parameters, Object config) {
	appendAttributes(parameters, config, null);
	}

	protected static void appendAttributes(Map<Object, Object> parameters, Object config, String prefix) {
	if (config == null) {
	return;
	}
	Method[] methods = config.getClass().getMethods();
	for (Method method : methods) {
	try {
	String name = method.getName();
	if ((name.startsWith("get") \|\| name.startsWith("is"))
	&& ! "getClass".equals(name)
	&& Modifier.isPublic(method.getModifiers())
	&& method.getParameterTypes().length == 0
	&& isPrimitive(method.getReturnType())) {
	Parameter parameter = method.getAnnotation(Parameter.class);
	if (parameter == null \|\| !parameter.attribute())
	continue;
	String key;
	if (parameter != null && parameter.key() != null && parameter.key().length() > 0) {
	key = parameter.key();
	} else {
	int i = name.startsWith("get") ? 3 : 2;
	key = name.substring(i, i + 1).toLowerCase() + name.substring(i + 1);
	}
	Object value = method.invoke(config, new Object[0]);
	if (value != null) {
	if (prefix != null && prefix.length() > 0) {
	key = prefix + "." + key;
	}
	parameters.put(key, value);
	}
	}
	} catch (Exception e) {
	throw new IllegalStateException(e.getMessage(), e);
	}
	}
	}

	private static boolean isPrimitive(Class<?> type) {
	return type.isPrimitive()
	\|\| type == String.class
	\|\| type == Character.class
	\|\| type == Boolean.class
	\|\| type == Byte.class
	\|\| type == Short.class
	\|\| type == Integer.class
	\|\| type == Long.class
	\|\| type == Float.class
	\|\| type == Double.class
	\|\| type == Object.class;
	}

	private static Object convertPrimitive(Class<?> type, String value) {
	if (type == char.class \|\| type == Character.class) {
	return value.length() > 0 ? value.charAt(0) : '\0';
	} else if (type == boolean.class \|\| type == Boolean.class) {
	return Boolean.valueOf(value);
	} else if (type == byte.class \|\| type == Byte.class) {
	return Byte.valueOf(value);
	} else if (type == short.class \|\| type == Short.class) {
	return Short.valueOf(value);
	} else if (type == int.class \|\| type == Integer.class) {
	return Integer.valueOf(value);
	} else if (type == long.class \|\| type == Long.class) {
	return Long.valueOf(value);
	} else if (type == float.class \|\| type == Float.class) {
	return Float.valueOf(value);
	} else if (type == double.class \|\| type == Double.class) {
	return Double.valueOf(value);
	}
	return value;
	}

	protected static void checkExtension(Class<?> type, String property, String value) {
	checkName(property, value);
	if (value != null && value.length() > 0
	&& ! ExtensionLoader.getExtensionLoader(type).hasExtension(value)) {
	throw new IllegalStateException("No such extension " + value + " for " + property + "/" + type.getName());
	}
	}

	protected static void checkMultiExtension(Class<?> type, String property, String value) {
	checkMultiName(property, value);
	if (value != null && value.length() > 0) {
	String[] values = value.split("\\s[,]+\\s");
	for (String v : values) {
	if (v.startsWith(Constants.REMOVE_VALUE_PREFIX)) {
	v = v.substring(1);
	}
	if (! ExtensionLoader.getExtensionLoader(type).hasExtension(v)) {
	throw new IllegalStateException("No such extension " + v + " for " + property + "/" + type.getName());
	}
	}
	}
	}

	protected static void checkLength(String property, String value) {
	checkProperty(property, value, MAX_LENGTH, null);
	}

	protected static void checkPathLength(String property, String value) {
	checkProperty(property, value, MAX_PATH_LENGTH, null);
	}

	protected static void checkName(String property, String value) {
	checkProperty(property, value, MAX_LENGTH, PATTERN_NAME);
	}

	protected static void checkNameHasSymbol(String property, String value) {
	checkProperty(property, value, MAX_LENGTH, PATTERN_NAME_HAS_SYMBOL);
	}

	protected static void checkKey(String property, String value) {
	checkProperty(property, value, MAX_LENGTH, PATTERN_KEY);
	}

	protected static void checkMultiName(String property, String value) {
	checkProperty(property, value, MAX_LENGTH, PATTERN_MULTI_NAME);
	}

	protected static void checkPathName(String property, String value) {
	checkProperty(property, value, MAX_PATH_LENGTH, PATTERN_PATH);
	}

	protected static void checkMethodName(String property, String value) {
	checkProperty(property, value, MAX_LENGTH, PATTERN_METHOD_NAME);
	}

	protected static void checkParameterName(Map<String, String> parameters) {
	if (parameters == null \|\| parameters.size() == 0) {
	return;
	}
	for (Map.Entry<String, String> entry : parameters.entrySet()) {
	//change by tony.chenl parameter value maybe has colon.for example napoli address
	checkNameHasSymbol(entry.getKey(), entry.getValue());
	}
	}

	protected static void checkProperty(String property, String value, int maxlength, Pattern pattern) {
	if (value == null \|\| value.length() == 0) {
	return;
	}
	if(value.length() > maxlength){
	throw new IllegalStateException("Invalid " + property + "=\"" + value + "\" is longer than " + maxlength);
	}
	if (pattern != null) {
	Matcher matcher = pattern.matcher(value);
	if(! matcher.matches()) {
	throw new IllegalStateException("Invalid " + property + "=\"" + value + "\" contain illegal charactor, only digit, letter, '-', '_' and '.' is legal.");
	}
	}
	}

	static {
	Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
	public void run() {
	if (logger.isInfoEnabled()) {
	logger.info("Run shutdown hook now.");
	}
	ProtocolConfig.destroyAll();
	}
	}, "DubboShutdownHook"));
	}

	private static final String[] SUFFIXS = new String[] {"Config", "Bean"};

	@Override
	public String toString() {
	try {
	StringBuilder buf = new StringBuilder();
	buf.append("<dubbo:");
	buf.append(getTagName(getClass()));
	Method[] methods = getClass().getMethods();
	for (Method method : methods) {
	try {
	String name = method.getName();
	if ((name.startsWith("get") \|\| name.startsWith("is"))
	&& ! "getClass".equals(name) && ! "get".equals(name) && ! "is".equals(name)
	&& Modifier.isPublic(method.getModifiers())
	&& method.getParameterTypes().length == 0
	&& isPrimitive(method.getReturnType())) {
	int i = name.startsWith("get") ? 3 : 2;
	String key = name.substring(i, i + 1).toLowerCase() + name.substring(i + 1);
	Object value = method.invoke(this, new Object[0]);
	if (value != null) {
	buf.append(" ");
	buf.append(key);
	buf.append("=\"");
	buf.append(value);
	buf.append("\"");
	}
	}
	} catch (Exception e) {
	logger.warn(e.getMessage(), e);
	}
	}
	buf.append(" />");
	return buf.toString();
	} catch (Throwable t) { // 防御性容错
	logger.warn(t.getMessage(), t);
	return super.toString();
	}
	}

	}