diff --git a/src/main/java/META-INF/application-template.xml b/src/main/java/META-INF/application-template.xml
index a260c57bc..d20e61c8c 100644
--- a/src/main/java/META-INF/application-template.xml
+++ b/src/main/java/META-INF/application-template.xml
@@ -124,8 +124,8 @@
             如果name是system.property.开头的值将会在进程启动时进行System.setProperty("yyyy", "YYYYYY")操作。
             如果name是mimetype.property.开头的值将会在进程启动时进行MimeType.add("yyyy", "YYYYYY")操作。
             先加载子节点property，再加载load文件， 最后加载agent的实现子类。
-            agent: 实现类名，必须是org.redkale.boot.PropertiesAgent的子类
             load:  加载文件，多个用;隔开。
+            其他属性: 供org.redkale.boot.PropertiesAgentProvider使用判断
             默认置入的system.property.的有：
                System.setProperty("redkale.net.transport.poolmaxconns", "100");
                System.setProperty("redkale.net.transport.pinginterval", "30");
@@ -138,7 +138,7 @@
             <properties>节点下也可包含非<property>节点.
             非<property>其节点可以通过@Resource(name="properties.xxxxxx")进行注入, 被注解的字段类型只能是AnyValue、AnyValue[]
         -->
-        <properties load="config.properties" agent="">
+        <properties load="config.properties">
             <property name="system.property.yyyy" value="YYYYYY"/>
             <property name="xxxxxx" value="XXXXXXXX"/>
             <property name="xxxxxx" value="XXXXXXXX"/>
diff --git a/src/main/java/org/redkale/boot/Application.java b/src/main/java/org/redkale/boot/Application.java
index 67359a25a..504fcf93f 100644
--- a/src/main/java/org/redkale/boot/Application.java
+++ b/src/main/java/org/redkale/boot/Application.java
@@ -494,11 +494,10 @@ public final class Application {
                         Iterator<ClusterAgentProvider> it = ServiceLoader.load(ClusterAgentProvider.class, classLoader).iterator();
                         RedkaleClassLoader.putServiceLoader(ClusterAgentProvider.class);
                         while (it.hasNext()) {
-                            ClusterAgentProvider agent = it.next();
-                            if (agent != null) RedkaleClassLoader.putReflectionPublicConstructors(agent.getClass(), agent.getClass().getName()); //loader class
-                            if (agent != null && agent.acceptsConf(clusterConf)) {
-                                RedkaleClassLoader.putReflectionPublicConstructors(agent.getClass(), agent.agentClass().getName()); //agent class
-                                cluster = agent.agentClass().getConstructor().newInstance();
+                            ClusterAgentProvider provider = it.next();
+                            if (provider != null) RedkaleClassLoader.putReflectionPublicConstructors(provider.getClass(), provider.getClass().getName()); //loader class
+                            if (provider != null && provider.acceptsConf(clusterConf)) {
+                                cluster = provider.createInstance();
                                 cluster.setConfig(clusterConf);
                                 break;
                             }
@@ -550,11 +549,10 @@ public final class Application {
                             Iterator<MessageAgentProvider> it = ServiceLoader.load(MessageAgentProvider.class, classLoader).iterator();
                             RedkaleClassLoader.putServiceLoader(MessageAgentProvider.class);
                             while (it.hasNext()) {
-                                MessageAgentProvider messageAgent = it.next();
-                                if (messageAgent != null) RedkaleClassLoader.putReflectionPublicConstructors(messageAgent.getClass(), messageAgent.getClass().getName()); //loader class
-                                if (messageAgent != null && messageAgent.acceptsConf(mqConf)) {
-                                    RedkaleClassLoader.putReflectionPublicConstructors(messageAgent.getClass(), messageAgent.agentClass().getName()); //agent class
-                                    mqs[i] = messageAgent.agentClass().getConstructor().newInstance();
+                                MessageAgentProvider provider = it.next();
+                                if (provider != null) RedkaleClassLoader.putReflectionPublicConstructors(provider.getClass(), provider.getClass().getName()); //loader class
+                                if (provider != null && provider.acceptsConf(mqConf)) {
+                                    mqs[i] = provider.createInstance();
                                     mqs[i].setConfig(mqConf);
                                     break;
                                 }
@@ -797,19 +795,26 @@ public final class Application {
                     }
                 }
 
-                String agent = propertiesConf.getValue("agent");
-                if (agent != null && !agent.isEmpty() && !PropertiesAgent.class.getName().equals(agent)) {
-                    Class<PropertiesAgent> clazz = (Class) classLoader.loadClass(agent);
-                    if (!PropertiesAgent.class.isAssignableFrom(clazz)) {
-                        throw new RuntimeException("PropertiesAgent class (" + agent + ") is not " + PropertiesAgent.class.getName() + " impl class");
+                if ((dfloads == null && propertiesConf.getStringEntrys().length > 0) || (dfloads != null && propertiesConf.getStringEntrys().length > 1)) {
+                    Iterator<PropertiesAgentProvider> it = ServiceLoader.load(PropertiesAgentProvider.class, classLoader).iterator();
+                    RedkaleClassLoader.putServiceLoader(PropertiesAgentProvider.class);
+                    List<PropertiesAgentProvider> providers = new ArrayList<>();
+                    while (it.hasNext()) {
+                        PropertiesAgentProvider provider = it.next();
+                        if (provider != null) RedkaleClassLoader.putReflectionPublicConstructors(provider.getClass(), provider.getClass().getName()); //loader class
+                        if (provider != null && provider.acceptsConf(propertiesConf)) {
+                            providers.add(provider);
+                        }
                     }
-                    RedkaleClassLoader.putReflectionPublicConstructors(clazz, clazz.getName());
-                    this.propertiesAgent = clazz.getConstructor().newInstance();
-                    this.resourceFactory.inject(this.propertiesAgent);
-                    if (compileMode) {
-                        this.propertiesAgent.compile(propertiesConf);
-                    } else {
-                        this.propertiesAgent.init(resourceFactory, appProperties, propertiesConf);
+                    for (PropertiesAgentProvider provider : InstanceProvider.sort(providers)) {
+                        this.propertiesAgent = provider.createInstance();
+                        this.resourceFactory.inject(this.propertiesAgent);
+                        if (compileMode) {
+                            this.propertiesAgent.compile(propertiesConf);
+                        } else {
+                            this.propertiesAgent.init(resourceFactory, appProperties, propertiesConf);
+                        }
+                        break;
                     }
                 }
             }
@@ -1009,39 +1014,34 @@ public final class Application {
         }
         String classval = sourceConf.getValue("type");
         try {
-            Class sourceType = null;
+            CacheSource source = null;
             if (classval == null || classval.isEmpty()) {
                 RedkaleClassLoader.putServiceLoader(CacheSourceProvider.class);
                 List<CacheSourceProvider> providers = new ArrayList<>();
                 Iterator<CacheSourceProvider> it = ServiceLoader.load(CacheSourceProvider.class, serverClassLoader).iterator();
                 while (it.hasNext()) {
-                    CacheSourceProvider s = it.next();
-                    if (s != null) RedkaleClassLoader.putReflectionPublicConstructors(s.getClass(), s.getClass().getName());
-                    if (s != null && s.acceptsConf(sourceConf)) {
-                        providers.add(s);
+                    CacheSourceProvider provider = it.next();
+                    if (provider != null) RedkaleClassLoader.putReflectionPublicConstructors(provider.getClass(), provider.getClass().getName());
+                    if (provider != null && provider.acceptsConf(sourceConf)) {
+                        providers.add(provider);
                     }
                 }
-                Collections.sort(providers, (a, b) -> {
-                    Priority p1 = a == null ? null : a.getClass().getAnnotation(Priority.class);
-                    Priority p2 = b == null ? null : b.getClass().getAnnotation(Priority.class);
-                    return (p2 == null ? 0 : p2.value()) - (p1 == null ? 0 : p1.value());
-                });
-                for (CacheSourceProvider provider : providers) {
-                    sourceType = provider.sourceClass();
-                    if (sourceType != null) break;
+                for (CacheSourceProvider provider : InstanceProvider.sort(providers)) {
+                    source = provider.createInstance();
+                    if (source != null) break;
                 }
-                if (sourceType == null) {
+                if (source == null) {
                     if (CacheMemorySource.acceptsConf(sourceConf)) {
-                        sourceType = CacheMemorySource.class;
+                        source = new CacheMemorySource(sourceName);
                     }
                 }
             } else {
-                sourceType = serverClassLoader.loadClass(classval);
+                Class sourceType = serverClassLoader.loadClass(classval);
+                RedkaleClassLoader.putReflectionPublicConstructors(sourceType, sourceType.getName());
+                source = (CacheSource) sourceType.getConstructor().newInstance();
             }
-            if (sourceType == null) throw new RuntimeException("Not found CacheSourceProvider for config=" + sourceConf);
+            if (source == null) throw new RuntimeException("Not found CacheSourceProvider for config=" + sourceConf);
 
-            RedkaleClassLoader.putReflectionPublicConstructors(sourceType, sourceType.getName());
-            CacheSource source = sourceType == CacheMemorySource.class ? new CacheMemorySource(sourceName) : (CacheSource) sourceType.getConstructor().newInstance();
             cacheSources.add(source);
             resourceFactory.register(sourceName, source);
             resourceFactory.inject(sourceName, source);
@@ -1070,45 +1070,40 @@ public final class Application {
         }
         String classval = sourceConf.getValue("type");
         try {
-            Class sourceType = null;
+            DataSource source = null;
             if (classval == null || classval.isEmpty()) {
                 if (DataJdbcSource.acceptsConf(sourceConf)) {
-                    sourceType = DataJdbcSource.class;
+                    source = new DataJdbcSource();
                 } else {
                     RedkaleClassLoader.putServiceLoader(DataSourceProvider.class);
                     List<DataSourceProvider> providers = new ArrayList<>();
                     Iterator<DataSourceProvider> it = ServiceLoader.load(DataSourceProvider.class, serverClassLoader).iterator();
                     while (it.hasNext()) {
-                        DataSourceProvider s = it.next();
-                        if (s != null) RedkaleClassLoader.putReflectionPublicConstructors(s.getClass(), s.getClass().getName());
-                        if (s != null && s.acceptsConf(sourceConf)) {
-                            providers.add(s);
+                        DataSourceProvider provider = it.next();
+                        if (provider != null) RedkaleClassLoader.putReflectionPublicConstructors(provider.getClass(), provider.getClass().getName());
+                        if (provider != null && provider.acceptsConf(sourceConf)) {
+                            providers.add(provider);
                         }
                     }
-                    Collections.sort(providers, (a, b) -> {
-                        Priority p1 = a == null ? null : a.getClass().getAnnotation(Priority.class);
-                        Priority p2 = b == null ? null : b.getClass().getAnnotation(Priority.class);
-                        return (p2 == null ? 0 : p2.value()) - (p1 == null ? 0 : p1.value());
-                    });
-                    for (DataSourceProvider provider : providers) {
-                        sourceType = provider.sourceClass();
-                        if (sourceType != null) break;
+                    for (DataSourceProvider provider : InstanceProvider.sort(providers)) {
+                        source = provider.createInstance();
+                        if (source != null) break;
                     }
-                    if (sourceType == null) {
+                    if (source == null) {
                         if (DataMemorySource.acceptsConf(sourceConf)) {
-                            sourceType = DataMemorySource.class;
+                            source = new DataMemorySource(sourceName);
                         }
                     }
                 }
             } else {
-                sourceType = serverClassLoader.loadClass(classval);
+                Class sourceType = serverClassLoader.loadClass(classval);
+                RedkaleClassLoader.putReflectionPublicConstructors(sourceType, sourceType.getName());
+                source = (DataSource) sourceType.getConstructor().newInstance();
             }
-            if (sourceType == null) throw new RuntimeException("Not found DataSourceProvider for config=" + sourceConf);
+            if (source == null) throw new RuntimeException("Not found DataSourceProvider for config=" + sourceConf);
 
-            RedkaleClassLoader.putReflectionPublicConstructors(sourceType, sourceType.getName());
-            DataSource source = sourceType == DataMemorySource.class ? new DataMemorySource(sourceName) : (DataSource) sourceType.getConstructor().newInstance();
             dataSources.add(source);
-            if (sourceType == DataMemorySource.class && DataMemorySource.isSearchType(sourceConf)) {
+            if (source instanceof DataMemorySource && DataMemorySource.isSearchType(sourceConf)) {
                 resourceFactory.register(sourceName, SearchSource.class, source);
             } else {
                 resourceFactory.register(sourceName, source);
diff --git a/src/main/java/org/redkale/boot/NodeServer.java b/src/main/java/org/redkale/boot/NodeServer.java
index e41bdaf59..37627e7f7 100644
--- a/src/main/java/org/redkale/boot/NodeServer.java
+++ b/src/main/java/org/redkale/boot/NodeServer.java
@@ -15,6 +15,7 @@ import java.net.*;
 import java.nio.file.*;
 import java.util.*;
 import java.util.concurrent.*;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.*;
 import java.util.logging.*;
 import javax.annotation.*;
@@ -357,6 +358,7 @@ public abstract class NodeServer {
         ResourceFactory regFactory = isSNCP() ? application.getResourceFactory() : resourceFactory;
         final ResourceFactory appResourceFactory = application.getResourceFactory();
         final TransportFactory appSncpTransFactory = application.getSncpTransportFactory();
+        final AtomicInteger serviceCount = new AtomicInteger();
         for (FilterEntry<? extends Service> entry : entrys) { //service实现类
             final Class<? extends Service> serviceImplClass = entry.getType();
             if (Modifier.isFinal(serviceImplClass.getModifiers())) continue; //修饰final的类跳过
@@ -422,6 +424,7 @@ public abstract class NodeServer {
                         interceptorServices.add(service);
                         if (consumer != null) consumer.accept(agent, service);
                     }
+                    serviceCount.incrementAndGet();
                 } catch (RuntimeException ex) {
                     throw ex;
                 } catch (Exception e) {
@@ -502,7 +505,7 @@ public abstract class NodeServer {
             for (String s : wlist) {
                 sb.append(s);
             }
-            sb.append(localThreadName).append("All Services load cost ").append(System.currentTimeMillis() - starts).append(" ms" + LINE_SEPARATOR);
+            sb.append(localThreadName).append("All " + localServices.size() + " Services load cost ").append(System.currentTimeMillis() - starts).append(" ms");
         }
         if (sb != null && preinite > 10) sb.append(localThreadName).append(ClusterAgent.class.getSimpleName()).append(" register ").append(preinite).append(" ms" + LINE_SEPARATOR);
         if (sb != null && sb.length() > 0) logger.log(Level.INFO, sb.toString());
diff --git a/src/main/java/org/redkale/boot/PropertiesAgent.java b/src/main/java/org/redkale/boot/PropertiesAgent.java
index aa5379877..024701fbb 100644
--- a/src/main/java/org/redkale/boot/PropertiesAgent.java
+++ b/src/main/java/org/redkale/boot/PropertiesAgent.java
@@ -3,6 +3,7 @@
 package org.redkale.boot;
 
 import java.util.Properties;
+import java.util.logging.Logger;
 import org.redkale.util.*;
 
 /**
@@ -17,11 +18,9 @@ import org.redkale.util.*;
  */
 public abstract class PropertiesAgent {
 
-    public static final String PROP_KEY_URL = "url";
-
     public static final String PROP_KEY_NAMESPACE = "namespace";
 
-    public static final String PROP_NAMESPACE_APPLICATION = "application";
+    protected final Logger logger = Logger.getLogger(this.getClass().getSimpleName());
 
     /**
      * 编译时进行的操作
@@ -31,6 +30,15 @@ public abstract class PropertiesAgent {
     public void compile(AnyValue conf) {
     }
 
+    /**
+     * ServiceLoader时判断配置是否符合当前实现类
+     *
+     * @param config 节点配置
+     *
+     * @return boolean
+     */
+    public abstract boolean acceptsConf(AnyValue config);
+
     /**
      * 初始化配置源，配置项需要写入appProperties，并监听配置项的变化
      *
diff --git a/src/main/java/org/redkale/boot/PropertiesAgentProvider.java b/src/main/java/org/redkale/boot/PropertiesAgentProvider.java
new file mode 100644
index 000000000..075090d81
--- /dev/null
+++ b/src/main/java/org/redkale/boot/PropertiesAgentProvider.java
@@ -0,0 +1,19 @@
+/*
+ */
+package org.redkale.boot;
+
+import org.redkale.util.*;
+
+/**
+ * 自定义的PropertiesAgent加载器
+ *
+ *
+ * <p>
+ * 详情见: https://redkale.org
+ *
+ * @author zhangjx
+ * @since 2.8.0
+ */
+public interface PropertiesAgentProvider extends InstanceProvider<PropertiesAgent> {
+
+}
diff --git a/src/main/java/org/redkale/cluster/ClusterAgent.java b/src/main/java/org/redkale/cluster/ClusterAgent.java
index a201e531c..f396604b2 100644
--- a/src/main/java/org/redkale/cluster/ClusterAgent.java
+++ b/src/main/java/org/redkale/cluster/ClusterAgent.java
@@ -86,7 +86,13 @@ public abstract class ClusterAgent {
     public void destroy(AnyValue config) {
     }
 
-    //ServiceLoader时判断配置是否符合当前实现类
+    /**
+     * ServiceLoader时判断配置是否符合当前实现类
+     *
+     * @param config 节点配置
+     *
+     * @return boolean
+     */
     public abstract boolean acceptsConf(AnyValue config);
 
     public boolean containsProtocol(String protocol) {
diff --git a/src/main/java/org/redkale/cluster/ClusterAgentProvider.java b/src/main/java/org/redkale/cluster/ClusterAgentProvider.java
index 7c5f25de6..b8b24d27a 100644
--- a/src/main/java/org/redkale/cluster/ClusterAgentProvider.java
+++ b/src/main/java/org/redkale/cluster/ClusterAgentProvider.java
@@ -5,7 +5,7 @@
  */
 package org.redkale.cluster;
 
-import org.redkale.util.AnyValue;
+import org.redkale.util.*;
 
 /**
  * 自定义的ClusterAgent加载器
@@ -17,9 +17,6 @@ import org.redkale.util.AnyValue;
  * @author zhangjx
  * @since 2.5.0
  */
-public interface ClusterAgentProvider {
+public interface ClusterAgentProvider extends InstanceProvider<ClusterAgent> {
 
-    public boolean acceptsConf(AnyValue config);
-
-    public Class<? extends ClusterAgent> agentClass();
 }
diff --git a/src/main/java/org/redkale/convert/ConvertFactory.java b/src/main/java/org/redkale/convert/ConvertFactory.java
index f3774447b..5b6396824 100644
--- a/src/main/java/org/redkale/convert/ConvertFactory.java
+++ b/src/main/java/org/redkale/convert/ConvertFactory.java
@@ -531,8 +531,8 @@ public abstract class ConvertFactory<R extends Reader, W extends Writer> {
                 }
                 if (coder == null) {
                     try {
-                        coder = (SimpledCoder) clazz1.getConstructor().newInstance();
                         RedkaleClassLoader.putReflectionPublicConstructors(clazz1, clazz1.getName());
+                        coder = (SimpledCoder) clazz1.getConstructor().newInstance();
                     } catch (Throwable t) {
                         t.printStackTrace();
                         continue;
diff --git a/src/main/java/org/redkale/mq/MessageAgentProvider.java b/src/main/java/org/redkale/mq/MessageAgentProvider.java
index c05570ac8..1e9526614 100644
--- a/src/main/java/org/redkale/mq/MessageAgentProvider.java
+++ b/src/main/java/org/redkale/mq/MessageAgentProvider.java
@@ -5,7 +5,7 @@
  */
 package org.redkale.mq;
 
-import org.redkale.util.AnyValue;
+import org.redkale.util.*;
 
 /**
  * 自定义的MessageAgent加载器
@@ -17,9 +17,6 @@ import org.redkale.util.AnyValue;
  * @author zhangjx
  * @since 2.5.0
  */
-public interface MessageAgentProvider {
+public interface MessageAgentProvider extends InstanceProvider<MessageAgent> {
 
-    public boolean acceptsConf(AnyValue config);
-
-    public Class<? extends MessageAgent> agentClass();
 }
diff --git a/src/main/java/org/redkale/net/SSLBuilder.java b/src/main/java/org/redkale/net/SSLBuilder.java
index 1679529d7..726247112 100644
--- a/src/main/java/org/redkale/net/SSLBuilder.java
+++ b/src/main/java/org/redkale/net/SSLBuilder.java
@@ -57,10 +57,12 @@ public class SSLBuilder {
         Provider jsseProvider = null;
         if (sslProviderImpl != null) {
             Class<Provider> providerClass = (Class) Thread.currentThread().getContextClassLoader().loadClass(sslProviderImpl);
+            RedkaleClassLoader.putReflectionPublicConstructors(providerClass, providerClass.getName());
             sslProvider = providerClass.getConstructor().newInstance();
         }
         if (jsseProviderImpl != null) {
             Class<Provider> providerClass = (Class) Thread.currentThread().getContextClassLoader().loadClass(jsseProviderImpl);
+            RedkaleClassLoader.putReflectionPublicConstructors(providerClass, providerClass.getName());
             jsseProvider = providerClass.getConstructor().newInstance();
         }
 
@@ -126,7 +128,7 @@ public class SSLBuilder {
             }
             if (!unset.isEmpty()) {
                 logger.log(Level.WARNING, "protocols " + unset + " is not supported, only support: " + Arrays.toString(protocolArray));
-            } 
+            }
         }
         if (!enabledCiphers.isEmpty()) {
             HashSet<String> set = new HashSet<>();
diff --git a/src/main/java/org/redkale/net/Server.java b/src/main/java/org/redkale/net/Server.java
index 59958fc9c..1d4f5396e 100644
--- a/src/main/java/org/redkale/net/Server.java
+++ b/src/main/java/org/redkale/net/Server.java
@@ -288,7 +288,7 @@ public abstract class Server<K extends Serializable, C extends Context, R extend
         logger.info(threadName + this.getClass().getSimpleName() + ("TCP".equalsIgnoreCase(netprotocol) ? "" : ("." + netprotocol)) + " listen: " + (address.getHostString() + ":" + address.getPort())
             + ", cpu: " + Utility.cpus() + ", responsePoolSize: " + responsePoolSize + ", bufferPoolSize: " + bufferPoolSize
             + ", bufferCapacity: " + formatLenth(bufferCapacity) + ", maxbody: " + formatLenth(context.maxbody)
-            + ", started in " + (System.currentTimeMillis() - context.getServerStartTime()) + " ms");
+            + ", started in " + (System.currentTimeMillis() - context.getServerStartTime()) + " ms\r\n");
     }
 
     protected void postPrepareInit() {
diff --git a/src/main/java/org/redkale/source/CacheSourceProvider.java b/src/main/java/org/redkale/source/CacheSourceProvider.java
index cdfb84e22..8d9fe8ca1 100644
--- a/src/main/java/org/redkale/source/CacheSourceProvider.java
+++ b/src/main/java/org/redkale/source/CacheSourceProvider.java
@@ -5,7 +5,7 @@
  */
 package org.redkale.source;
 
-import org.redkale.util.AnyValue;
+import org.redkale.util.*;
 
 /**
  *
@@ -17,9 +17,6 @@ import org.redkale.util.AnyValue;
  * @author zhangjx
  * @since 2.5.0
  */
-public interface CacheSourceProvider {
+public interface CacheSourceProvider extends InstanceProvider<CacheSource> {
 
-    public boolean acceptsConf(AnyValue config);
-
-    public Class<? extends CacheSource> sourceClass();
 }
diff --git a/src/main/java/org/redkale/source/DataSourceProvider.java b/src/main/java/org/redkale/source/DataSourceProvider.java
index e8e605ed0..aa1603038 100644
--- a/src/main/java/org/redkale/source/DataSourceProvider.java
+++ b/src/main/java/org/redkale/source/DataSourceProvider.java
@@ -5,7 +5,7 @@
  */
 package org.redkale.source;
 
-import org.redkale.util.AnyValue;
+import org.redkale.util.*;
 
 /**
  *
@@ -17,9 +17,6 @@ import org.redkale.util.AnyValue;
  * @author zhangjx
  * @since 2.5.0
  */
-public interface DataSourceProvider {
+public interface DataSourceProvider extends InstanceProvider<DataSource> {
 
-    public boolean acceptsConf(AnyValue config);
-
-    public Class<? extends DataSource> sourceClass();
 }
diff --git a/src/main/java/org/redkale/util/InstanceProvider.java b/src/main/java/org/redkale/util/InstanceProvider.java
new file mode 100644
index 000000000..8c05fa724
--- /dev/null
+++ b/src/main/java/org/redkale/util/InstanceProvider.java
@@ -0,0 +1,34 @@
+/*
+ */
+package org.redkale.util;
+
+import java.util.*;
+import javax.annotation.Priority;
+
+/**
+ * 配置源Agent的Provider
+ *
+ *
+ * 详情见: https://redkale.org
+ *
+ * @author zhangjx
+ * @param <V> XXXAgent
+ *
+ * @since 2.8.0
+ */
+public interface InstanceProvider<V> {
+
+    public boolean acceptsConf(AnyValue config);
+
+    public V createInstance();
+
+    //值大排前面
+    public static <P extends InstanceProvider> List<P> sort(List<P> providers) {
+        Collections.sort(providers, (a, b) -> {
+            Priority p1 = a == null ? null : a.getClass().getAnnotation(Priority.class);
+            Priority p2 = b == null ? null : b.getClass().getAnnotation(Priority.class);
+            return (p2 == null ? 0 : p2.value()) - (p1 == null ? 0 : p1.value());
+        });
+        return providers;
+    }
+}