package org.activiti.engine.impl;
import java.util.List;
import org.activiti.engine.history.HistoricActivityInstance;
import org.activiti.engine.history.HistoricData;
import org.activiti.engine.history.HistoricVariableInstance;
import org.activiti.engine.history.ProcessInstanceHistoryLog;
import org.activiti.engine.history.ProcessInstanceHistoryLogQuery;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.interceptor.CommandExecutor;
import org.activiti.engine.impl.persistence.entity.HistoricProcessInstanceEntity;
/**
* @author Joram Barrez
*/
public class ProcessInstanceHistoryLogQueryImpl implements ProcessInstanceHistoryLogQuery, Command<ProcessInstanceHistoryLog> {
protected CommandExecutor commandExecutor;
protected String processInstanceId;
protected boolean includeTasks;
protected boolean includeActivities;
protected boolean includeVariables;
protected boolean includeComments;
protected boolean includeVariableUpdates;
protected boolean includeFormProperties;
public ProcessInstanceHistoryLogQueryImpl(CommandExecutor commandExecutor, String processInstanceId) {
this.commandExecutor = commandExecutor;
this.processInstanceId = processInstanceId;
}
@Override
public ProcessInstanceHistoryLogQuery includeTasks() {
this.includeTasks = true;
return this;
}
@Override
public ProcessInstanceHistoryLogQuery includeComments() {
this.includeComments = true;
return this;
}
@Override
public ProcessInstanceHistoryLogQuery includeActivities() {
this.includeActivities = true;
return this;
}
@Override
public ProcessInstanceHistoryLogQuery includeVariables() {
this.includeVariables = true;
return this;
}
@Override
public ProcessInstanceHistoryLogQuery includeVariableUpdates() {
this.includeVariableUpdates = true;
return this;
}
@Override
public ProcessInstanceHistoryLogQuery includeFormProperties() {
this.includeFormProperties = true;
return this;
}
@Override
public ProcessInstanceHistoryLog singleResult() {
return commandExecutor.execute(this);
}
@Override
public ProcessInstanceHistoryLog execute(CommandContext commandContext) {
// Fetch historic process instance
HistoricProcessInstanceEntity historicProcessInstance = commandContext
.getHistoricProcessInstanceEntityManager().findHistoricProcessInstance(processInstanceId);
if (historicProcessInstance == null) {
return null;
}
// Create a log using this historic process instance
ProcessInstanceHistoryLogImpl processInstanceHistoryLog = new ProcessInstanceHistoryLogImpl(historicProcessInstance);
// Add events, based on query settings
// Tasks
if (includeTasks) {
List<? extends HistoricData> tasks = commandContext.getHistoricTaskInstanceEntityManager()
.findHistoricTaskInstancesByQueryCriteria(
new HistoricTaskInstanceQueryImpl(commandExecutor).processInstanceId(processInstanceId));
processInstanceHistoryLog.addHistoricData(tasks);
}
// Activities
if (includeActivities) {
List<HistoricActivityInstance> activities = commandContext.getHistoricActivityInstanceEntityManager()
.findHistoricActivityInstancesByQueryCriteria(
new HistoricActivityInstanceQueryImpl(commandExecutor).processInstanceId(processInstanceId), null);
processInstanceHistoryLog.addHistoricData(activities);
}
// Variables
if (includeVariables) {
List<HistoricVariableInstance> variables = commandContext.getHistoricVariableInstanceEntityManager()
.findHistoricVariableInstancesByQueryCriteria(
new HistoricVariableInstanceQueryImpl(commandExecutor).processInstanceId(processInstanceId), null);
processInstanceHistoryLog.addHistoricData(variables);
}
// Comment
if (includeComments) {
List<? extends HistoricData> comments = commandContext.getCommentEntityManager().findCommentsByProcessInstanceId(processInstanceId);
processInstanceHistoryLog.addHistoricData(comments);
}
// Details: variables
if (includeVariableUpdates) {
List<? extends HistoricData> variableUpdates = commandContext.getHistoricDetailEntityManager()
.findHistoricDetailsByQueryCriteria(new HistoricDetailQueryImpl(commandExecutor).variableUpdates(), null);
processInstanceHistoryLog.addHistoricData(variableUpdates);
}
// Details: form properties
if (includeFormProperties) {
List<? extends HistoricData> formProperties = commandContext.getHistoricDetailEntityManager()
.findHistoricDetailsByQueryCriteria(new HistoricDetailQueryImpl(commandExecutor).formProperties(), null);
processInstanceHistoryLog.addHistoricData(formProperties);
}
// All events collected. Sort them by date.
processInstanceHistoryLog.orderHistoricData();
return processInstanceHistoryLog;
}
}