org.camunda.bpm.engine.impl.cmd.ModifyProcessInstanceAsyncCmd Maven / Gradle / Ivy

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/* 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 org.camunda.bpm.engine.impl.cmd;


import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import org.camunda.bpm.engine.authorization.Permissions;
import org.camunda.bpm.engine.authorization.Resources;
import org.camunda.bpm.engine.batch.Batch;
import org.camunda.bpm.engine.history.UserOperationLogEntry;
import org.camunda.bpm.engine.impl.ModificationBatchConfiguration;
import org.camunda.bpm.engine.impl.ProcessEngineLogger;
import org.camunda.bpm.engine.impl.ProcessInstanceModificationBuilderImpl;
import org.camunda.bpm.engine.impl.batch.BatchEntity;
import org.camunda.bpm.engine.impl.batch.BatchJobHandler;
import org.camunda.bpm.engine.impl.cfg.ProcessEngineConfigurationImpl;
import org.camunda.bpm.engine.impl.interceptor.Command;
import org.camunda.bpm.engine.impl.interceptor.CommandContext;
import org.camunda.bpm.engine.impl.persistence.entity.ExecutionEntity;
import org.camunda.bpm.engine.impl.persistence.entity.ExecutionManager;
import org.camunda.bpm.engine.impl.persistence.entity.PropertyChange;

/**
 * @author Yana Vasileva
 *
 */
public class ModifyProcessInstanceAsyncCmd implements Command {

  private final static CommandLogger LOG = ProcessEngineLogger.CMD_LOGGER;

  protected ProcessInstanceModificationBuilderImpl builder;

  public ModifyProcessInstanceAsyncCmd(ProcessInstanceModificationBuilderImpl processInstanceModificationBuilder) {
    this.builder = processInstanceModificationBuilder;
  }

  @Override
  public Batch execute(CommandContext commandContext) {
    String processInstanceId = builder.getProcessInstanceId();

    ExecutionManager executionManager = commandContext.getExecutionManager();
    ExecutionEntity processInstance = executionManager.findExecutionById(processInstanceId);
    ensureProcessInstanceExists(processInstanceId, processInstance);

    commandContext.getAuthorizationManager().checkAuthorization(Permissions.CREATE, Resources.BATCH);

    commandContext.getOperationLogManager().logProcessInstanceOperation(getLogEntryOperation(),
      processInstanceId,
      null,
      null,
      Collections.singletonList(PropertyChange.EMPTY_CHANGE));

    List instructions = builder.getModificationOperations();
    BatchEntity batch = createBatch(commandContext, instructions, processInstance);
    batch.createSeedJobDefinition();
    batch.createMonitorJobDefinition();
    batch.createBatchJobDefinition();

    batch.fireHistoricStartEvent();

    batch.createSeedJob();
    return batch;
  }

  protected BatchEntity createBatch(CommandContext commandContext, List instructions,
      ExecutionEntity processInstance) {

    String processInstanceId = processInstance.getProcessInstanceId();
    String processDefinitionId = processInstance.getProcessDefinitionId();
    String tenantId = processInstance.getTenantId();

    ProcessEngineConfigurationImpl processEngineConfiguration = commandContext.getProcessEngineConfiguration();
    BatchJobHandler batchJobHandler = getBatchJobHandler(processEngineConfiguration);

    ModificationBatchConfiguration configuration = new ModificationBatchConfiguration(Arrays.asList(processInstanceId), processDefinitionId, instructions,
        builder.isSkipCustomListeners(), builder.isSkipIoMappings());

    BatchEntity batch = new BatchEntity();

    batch.setType(batchJobHandler.getType());
    batch.setTotalJobs(1);
    batch.setBatchJobsPerSeed(processEngineConfiguration.getBatchJobsPerSeed());
    batch.setInvocationsPerBatchJob(processEngineConfiguration.getInvocationsPerBatchJob());
    batch.setConfigurationBytes(batchJobHandler.writeConfiguration(configuration));
    batch.setTenantId(tenantId);
    commandContext.getBatchManager().insert(batch);

    return batch;
  }

  @SuppressWarnings("unchecked")
  protected BatchJobHandler getBatchJobHandler(ProcessEngineConfigurationImpl processEngineConfiguration) {
    Map> batchHandlers = processEngineConfiguration.getBatchHandlers();
    return (BatchJobHandler) batchHandlers.get(Batch.TYPE_PROCESS_INSTANCE_MODIFICATION);
  }

  protected void ensureProcessInstanceExists(String processInstanceId, ExecutionEntity processInstance) {
    if (processInstance == null) {
      throw LOG.processInstanceDoesNotExist(processInstanceId);
    }
  }

  protected String getLogEntryOperation() {
    return UserOperationLogEntry.OPERATION_TYPE_MODIFY_PROCESS_INSTANCE;
  }

}