<feat>(client): add getNodeListByType interface. (#822)

Author: kyonRay

src/main/java/org/fisco/bcos/sdk/v3/client/Client.java

@@ -752,6 +752,44 @@ void getTransactionReceiptAsync(
      */
     void getSealerListAsync(String node, RespCallback<SealerList> callback);
 
+    /**
+     * get node list by type
+     *
+     * @param type type of node, now support consensus_sealer, consensus_observer and
+     *     consensus_candidate_sealer
+     * @return node list
+     */
+    SealerList getNodeListByType(String type);
+
+    /**
+     * get node list by type
+     *
+     * @param node the node rpc request send to
+     * @param type type of node, now support consensus_sealer, consensus_observer and
+     *     consensus_candidate_sealer
+     * @return node list
+     */
+    SealerList getNodeListByType(String node, String type);
+
+    /**
+     * async get node list by type
+     *
+     * @param type type of node, now support consensus_sealer, consensus_observer and
+     *     consensus_candidate_sealer
+     * @param callback the callback
+     */
+    void getNodeListByTypeAsync(String type, RespCallback<SealerList> callback);
+
+    /**
+     * async get node list by type
+     *
+     * @param node the node rpc request send to
+     * @param type type of node, now support consensus_sealer, consensus_observer and
+     *     consensus_candidate_sealer
+     * @param callback the callback
+     */
+    void getNodeListByTypeAsync(String node, String type, RespCallback<SealerList> callback);
+
     /**
      * Peer operation: get pbft view
      *

src/main/java/org/fisco/bcos/sdk/v3/client/ClientImpl.java

@@ -909,6 +909,42 @@ public void getSealerListAsync(String node, RespCallback<SealerList> callback) {
                 callback);
     }
 
+    @Override
+    public SealerList getNodeListByType(String type) {
+        return getNodeListByType("", type);
+    }
+
+    @Override
+    public SealerList getNodeListByType(String node, String type) {
+        node = Objects.isNull(node) ? "" : node;
+        return this.callRemoteMethod(
+                this.groupID,
+                node,
+                new JsonRpcRequest<>(
+                        JsonRpcMethods.GET_NODE_LIST_BY_TYPE,
+                        Arrays.asList(this.groupID, node, type)),
+                SealerList.class);
+    }
+
+    @Override
+    public void getNodeListByTypeAsync(String type, RespCallback<SealerList> callback) {
+        this.getNodeListByTypeAsync("", type, callback);
+    }
+
+    @Override
+    public void getNodeListByTypeAsync(
+            String node, String type, RespCallback<SealerList> callback) {
+        node = Objects.isNull(node) ? "" : node;
+        this.asyncCallRemoteMethod(
+                this.groupID,
+                node,
+                new JsonRpcRequest<>(
+                        JsonRpcMethods.GET_NODE_LIST_BY_TYPE,
+                        Arrays.asList(this.groupID, node, type)),
+                SealerList.class,
+                callback);
+    }
+
     @Override
     public PbftView getPbftView() {
         return this.getPbftView("");

src/main/java/org/fisco/bcos/sdk/v3/client/protocol/request/JsonRpcMethods.java

@@ -20,6 +20,7 @@ public class JsonRpcMethods {
     public static final String GET_PBFT_VIEW = "getPbftView";
     public static final String GET_CONSENSUS_STATUS = "getConsensusStatus";
     public static final String GET_SEALER_LIST = "getSealerList";
+    public static final String GET_NODE_LIST_BY_TYPE = "getNodeListByType";
     public static final String GET_SYSTEM_CONFIG_BY_KEY = "getSystemConfigByKey";
     public static final String GET_OBSERVER_LIST = "getObserverList";
     public static final String GET_SYNC_STATUS = "getSyncStatus";