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Add cluster token server interface to core and support embedded mode

- Add a EmbeddedClusterTokenServer interface

Signed-off-by: Eric Zhao <sczyh16@gmail.com>
master
Eric Zhao 6 years ago
parent
commit
9d42edcffa
3 changed files with 85 additions and 0 deletions
  1. +10
    -0
      sentinel-core/src/main/java/com/alibaba/csp/sentinel/cluster/server/ClusterTokenServer.java
  2. +27
    -0
      sentinel-core/src/main/java/com/alibaba/csp/sentinel/cluster/server/EmbeddedClusterTokenServer.java
  3. +48
    -0
      sentinel-core/src/main/java/com/alibaba/csp/sentinel/cluster/server/EmbeddedClusterTokenServerProvider.java

sentinel-cluster/sentinel-cluster-server-default/src/main/java/com/alibaba/csp/sentinel/cluster/server/ClusterTokenServer.java → sentinel-core/src/main/java/com/alibaba/csp/sentinel/cluster/server/ClusterTokenServer.java View File

@@ -23,7 +23,17 @@ package com.alibaba.csp.sentinel.cluster.server;
*/
public interface ClusterTokenServer {

/**
* Start the Sentinel cluster server.
*
* @throws Exception if any error occurs
*/
void start() throws Exception;

/**
* Stop the Sentinel cluster server.
*
* @throws Exception if any error occurs
*/
void stop() throws Exception;
}

+ 27
- 0
sentinel-core/src/main/java/com/alibaba/csp/sentinel/cluster/server/EmbeddedClusterTokenServer.java View File

@@ -0,0 +1,27 @@
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* 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.csp.sentinel.cluster.server;

import com.alibaba.csp.sentinel.cluster.TokenService;

/**
* Embedded token server interface that can work in embedded mode.
*
* @author Eric Zhao
* @since 1.4.0
*/
public interface EmbeddedClusterTokenServer extends ClusterTokenServer, TokenService {
}

+ 48
- 0
sentinel-core/src/main/java/com/alibaba/csp/sentinel/cluster/server/EmbeddedClusterTokenServerProvider.java View File

@@ -0,0 +1,48 @@
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* 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.csp.sentinel.cluster.server;

import com.alibaba.csp.sentinel.log.RecordLog;
import com.alibaba.csp.sentinel.util.SpiLoader;

/**
* @author Eric Zhao
* @since 1.4.0
*/
public final class EmbeddedClusterTokenServerProvider {

private static EmbeddedClusterTokenServer server = null;

static {
resolveInstance();
}

private static void resolveInstance() {
EmbeddedClusterTokenServer s = SpiLoader.loadFirstInstance(EmbeddedClusterTokenServer.class);
if (s == null) {
RecordLog.warn("[EmbeddedClusterTokenServerProvider] No existing cluster token server, cluster server mode will not be activated");
} else {
server = s;
RecordLog.info("[EmbeddedClusterTokenServerProvider] Cluster token server resolved: " + server.getClass().getCanonicalName());
}
}

public static EmbeddedClusterTokenServer getServer() {
return server;
}

private EmbeddedClusterTokenServerProvider() {}
}

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