<fix>(event,codec): fix codec not decode event indexed topic bug.

Author: kyonRay

build.gradle

@@ -20,7 +20,7 @@ ext {
     commonsIOVersion = '2.11.0'
     commonsLang3Version = '3.12.0'
     toml4jVersion = "0.7.2"
-    bcprovJDK18onVersion = '1.75'
+    bcprovJDK18onVersion = '1.78'
     webankJavaCryptoVersion = "1.0.3"
     junitVersion = '4.13.2'
     commonsCollections4Version = "4.4"

src/main/java/org/fisco/bcos/sdk/v3/codec/ContractCodec.java

@@ -1017,7 +1017,7 @@ public List<Object> decodeEvent(String abi, String eventName, EventLog log)
                     params =
                             ContractCodecTools.decodeJavaObject(inputObject, log.getData(), isWasm);
                 }
-                List<String> topics = log.getTopics();
+                List<String> topics = decodeIndexedEvent(log, abiDefinition);
                 return this.mergeEventParamsAndTopics(abiDefinition, params, topics);
             } catch (Exception e) {
                 logger.error(" exception in decodeEventToObject : {}", e.getMessage());
@@ -1029,6 +1029,30 @@ public List<Object> decodeEvent(String abi, String eventName, EventLog log)
         throw new ContractCodecException(errorMsg);
     }
 
+    public List<String> decodeIndexedEvent(EventLog log, ABIDefinition abiDefinition)
+            throws ClassNotFoundException {
+        List<ABIObject> eventIndexedObject =
+                ABIObjectFactory.createEventIndexedObject(abiDefinition);
+        List<String> topics = new ArrayList<>();
+        if (!log.getTopics().isEmpty()) {
+            topics.add(log.getTopics().get(0));
+            for (int i = 1; i < log.getTopics().size(); i++) {
+                ABIObject indexedObject = eventIndexedObject.get(i - 1);
+                if (indexedObject.isDynamic()) {
+                    topics.add(log.getTopics().get(i));
+                } else {
+                    List<String> objects =
+                            contractCodecJsonWrapper.decode(
+                                    indexedObject, Hex.decode(log.getTopics().get(i)), isWasm);
+                    if (!objects.isEmpty()) {
+                        topics.add(objects.get(0));
+                    }
+                }
+            }
+        }
+        return topics;
+    }
+
     public List<Object> decodeEventByTopic(String abi, String eventTopic, EventLog log)
             throws ContractCodecException {
         ContractABIDefinition contractABIDefinition = this.abiDefinitionFactory.loadABI(abi);
@@ -1040,7 +1064,7 @@ public List<Object> decodeEventByTopic(String abi, String eventTopic, EventLog l
             if (!log.getData().equals("0x")) {
                 params = ContractCodecTools.decodeJavaObject(inputObject, log.getData(), isWasm);
             }
-            List<String> topics = log.getTopics();
+            List<String> topics = decodeIndexedEvent(log, abiDefinition);
             return this.mergeEventParamsAndTopics(abiDefinition, params, topics);
         } catch (Exception e) {
             logger.error(" exception in decodeEventByTopicToObject : {}", e.getMessage());
@@ -1078,7 +1102,7 @@ public List<String> decodeEventToString(String abi, String eventName, EventLog l
                             contractCodecJsonWrapper.decode(
                                     inputObject, Hex.decode(log.getData()), isWasm);
                 }
-                List<String> topics = log.getTopics();
+                List<String> topics = decodeIndexedEvent(log, abiDefinition);
                 return this.mergeEventParamsAndTopicsToString(abiDefinition, params, topics);
             } catch (Exception e) {
                 logger.error(" exception in decodeEventToString : {}", e.getMessage());
@@ -1103,7 +1127,7 @@ public List<String> decodeEventByTopicToString(String abi, String eventTopic, Ev
                         contractCodecJsonWrapper.decode(
                                 inputObject, Hex.decode(log.getData()), isWasm);
             }
-            List<String> topics = log.getTopics();
+            List<String> topics = decodeIndexedEvent(log, abiDefinition);
             return this.mergeEventParamsAndTopicsToString(abiDefinition, params, topics);
         } catch (Exception e) {
             logger.error(" exception in decodeEventByTopicToString : {}", e.getMessage());

src/main/java/org/fisco/bcos/sdk/v3/codec/wrapper/ABIObjectFactory.java

@@ -1,6 +1,7 @@
 package org.fisco.bcos.sdk.v3.codec.wrapper;
 
 import java.math.BigInteger;
+import java.util.ArrayList;
 import java.util.List;
 import org.fisco.bcos.sdk.v3.utils.Numeric;
 import org.slf4j.Logger;
@@ -37,6 +38,16 @@ private static ABIObject createObject(String name, List<ABIDefinition.NamedType>
         return null;
     }
 
+    public static List<ABIObject> createEventIndexedObject(ABIDefinition abiDefinition) {
+        ArrayList<ABIObject> abiObjects = new ArrayList<>();
+        for (ABIDefinition.NamedType namedType : abiDefinition.getInputs()) {
+            if (namedType.isIndexed()) {
+                abiObjects.add(buildTypeObject(namedType));
+            }
+        }
+        return abiObjects;
+    }
+
     public static ABIObject createEventInputObject(ABIDefinition abiDefinition) {
         return creatEventObjectWithOutIndexed(abiDefinition.getInputs());
     }