diff --git a/agents-flex-core/src/main/java/com/agentsflex/core/chain/impl/LoopChain.java b/agents-flex-core/src/main/java/com/agentsflex/core/chain/impl/LoopChain.java new file mode 100644 index 0000000..1dd9202 --- /dev/null +++ b/agents-flex-core/src/main/java/com/agentsflex/core/chain/impl/LoopChain.java @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com). + *

+ * 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.agentsflex.core.chain.impl; + +import com.agentsflex.core.chain.ChainEdge; +import com.agentsflex.core.chain.NodeContext; +import com.agentsflex.core.chain.node.StartNode; + +public class LoopChain extends SequentialChain { + + private int maxLoopCount = Integer.MAX_VALUE; + private int executeCount = 0; + + public LoopChain() { + this.addNode(new StartNode()); + } + + public int getMaxLoopCount() { + return maxLoopCount; + } + + public void setMaxLoopCount(int maxLoopCount) { + this.maxLoopCount = maxLoopCount; + } + + public void close() { + if (this.nodes.size() < 2) { + return; + } + + String sourceId = this.nodes.get(this.nodes.size() - 1).getId(); + String targetId = this.nodes.get(1).getId(); + + ChainEdge edge = new ChainEdge(); + edge.setSource(sourceId); + edge.setTarget(targetId); + + super.addEdge(edge); + } + + @Override + protected void onNodeExecuteAfter(NodeContext nodeContext) { + if (executeCount++ >= maxLoopCount) { + stopNormal("Loop to the maxLoopCount limit"); + } + } + +}