content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.camel.component.git.consumer;
  
  import java.util.ArrayDeque;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Queue;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.Processor;
  import org.apache.camel.component.git.GitConstants;
  import org.apache.camel.component.git.GitEndpoint;
  import org.apache.camel.util.ObjectHelper;
  import org.eclipse.jgit.lib.ObjectId;
  import org.eclipse.jgit.revwalk.RevCommit;
  
  public class GitCommitConsumer extends AbstractGitConsumer {
  
      private final List<ObjectId> commitsConsumed = new ArrayList<>();
  
      public GitCommitConsumer(GitEndpoint endpoint, Processor processor) {
          super(endpoint, processor);
      }
  
      @Override
      public GitEndpoint getEndpoint() {
          return (GitEndpoint) super.getEndpoint();
      }
  
      @Override
      protected int poll() throws Exception {
          Queue<Object> exchanges = new ArrayDeque<>();
  
          String branch = getEndpoint().getBranchName();
          Iterable<RevCommit> commits;
          ObjectId id = null;
          if (ObjectHelper.isNotEmpty(branch)) {
              id = getGit().getRepository().resolve(branch);
          }
          if (id != null) {
              commits = getGit().log().add(id).call();
          } else {
              commits = getGit().log().all().call();
          }
          for (RevCommit commit : commits) {
              if (!commitsConsumed.contains(commit.getId())) {
                  Exchange e = createExchange(true);
                  e.getMessage().setBody(commit.getFullMessage());
                  e.getMessage().setHeader(GitConstants.GIT_COMMIT_ID, commit.getId());
                  e.getMessage().setHeader(GitConstants.GIT_COMMIT_AUTHOR_NAME, commit.getAuthorIdent().getName());
                  e.getMessage().setHeader(GitConstants.GIT_COMMIT_COMMITTER_NAME, commit.getCommitterIdent().getName());
                  e.getMessage().setHeader(GitConstants.GIT_COMMIT_TIME, commit.getCommitTime());
                  exchanges.add(e);
              }
          }
          return processBatch(exchanges);
      }
  
      @Override
      public Object onPreProcessed(Exchange exchange) {
          return exchange.getMessage().getHeader(GitConstants.GIT_COMMIT_ID);
      }
  
      @Override
      public void onProcessed(Exchange exchange, Object value) {
          if (value instanceof ObjectId oid) {
              commitsConsumed.add(oid);
          }
      }
  }
  