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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.activiti.app.model.runtime;

import java.util.Date;
import java.util.List;

import org.activiti.app.model.common.AbstractRepresentation;
import org.activiti.app.model.idm.UserRepresentation;
import org.activiti.engine.history.HistoricTaskInstance;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.task.Task;
import org.activiti.engine.task.TaskInfo;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;

/**
 * REST representation of a task.
 * 
 * @author Tijs Rademakers
 */
public class TaskRepresentation extends AbstractRepresentation {

  protected String id;
  protected String name;
  protected String description;
  protected String category;
  protected UserRepresentation assignee;
  protected Date created;
  protected Date dueDate;
  protected Date endDate;
  protected Long duration;
  protected Integer priority;
  protected String processInstanceId;
  protected String processInstanceName;
  protected String processDefinitionId;
  protected String processDefinitionName;
  protected String processDefinitionDescription;
  protected String processDefinitionKey;
  protected String processDefinitionCategory;
  protected int processDefinitionVersion;
  protected String processDefinitionDeploymentId;
  protected String formKey;
  protected String processInstanceStartUserId;
  protected boolean initiatorCanCompleteTask;
  protected boolean isMemberOfCandidateGroup;
  protected boolean isMemberOfCandidateUsers;

  @JsonDeserialize(contentAs = UserRepresentation.class)
  @JsonInclude(Include.NON_NULL)
  protected List involvedPeople;

  // Needed for serialization!
  public TaskRepresentation() {
  }

  public TaskRepresentation(Task task) {
    this(task, null);
  }

  public TaskRepresentation(HistoricTaskInstance task) {
    this(task, null);
  }

  public TaskRepresentation(TaskInfo taskInfo, ProcessDefinition processDefinition) {
    this.id = taskInfo.getId();
    this.name = taskInfo.getName();
    this.description = taskInfo.getDescription();
    this.category = taskInfo.getCategory();
    this.created = taskInfo.getCreateTime();
    this.dueDate = taskInfo.getDueDate();
    this.priority = taskInfo.getPriority();
    this.processInstanceId = taskInfo.getProcessInstanceId();
    this.processDefinitionId = taskInfo.getProcessDefinitionId();

    if (taskInfo instanceof HistoricTaskInstance) {
      this.endDate = ((HistoricTaskInstance) taskInfo).getEndTime();
      this.formKey = taskInfo.getFormKey();
      this.duration = ((HistoricTaskInstance) taskInfo).getDurationInMillis();
    } else {
      // Rendering of forms for historic tasks not supported currently
      this.formKey = taskInfo.getFormKey();
    }

    if (processDefinition != null) {
      this.processDefinitionName = processDefinition.getName();
      this.processDefinitionDescription = processDefinition.getDescription();
      this.processDefinitionKey = processDefinition.getKey();
      this.processDefinitionCategory = processDefinition.getCategory();
      this.processDefinitionVersion = processDefinition.getVersion();
      this.processDefinitionDeploymentId = processDefinition.getDeploymentId();
    }
  }

  public TaskRepresentation(TaskInfo taskInfo, ProcessDefinition processDefinition, String processInstanceName) {
    // todo Once a ProcessInstanceInfo class is implemented, lets send inthat as the 3rd parameter istead
    this(taskInfo, processDefinition);
    this.processInstanceName = processInstanceName;
  }

  public void fillTask(Task task) {
    task.setName(name);
    task.setDescription(description);
    if (assignee != null && assignee.getId() != null) {
      task.setAssignee(String.valueOf(assignee.getId()));
    }
    task.setDueDate(dueDate);
    if (priority != null) {
      task.setPriority(priority);
    }
    task.setCategory(category);
  }

  public String getId() {
    return id;
  }

  public void setId(String id) {
    this.id = id;
  }

  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public String getDescription() {
    return description;
  }

  public void setDescription(String description) {
    this.description = description;
  }

  public String getCategory() {
    return category;
  }

  public void setCategory(String category) {
    this.category = category;
  }

  public UserRepresentation getAssignee() {
    return assignee;
  }

  public void setAssignee(UserRepresentation assignee) {
    this.assignee = assignee;
  }

  public Date getCreated() {
    return created;
  }

  public void setCreated(Date created) {
    this.created = created;
  }

  public Date getDueDate() {
    return dueDate;
  }

  public void setDueDate(Date dueDate) {
    this.dueDate = dueDate;
  }

  public Integer getPriority() {
    return priority;
  }

  public void setPriority(Integer priority) {
    this.priority = priority;
  }

  public String getProcessInstanceId() {
    return processInstanceId;
  }

  public void setProcessInstanceId(String processInstanceId) {
    this.processInstanceId = processInstanceId;
  }

  public String getProcessInstanceName() {
    return processInstanceName;
  }

  public void setProcessInstanceName(String processInstanceName) {
    this.processInstanceName = processInstanceName;
  }

  public String getProcessDefinitionId() {
    return processDefinitionId;
  }

  public void setProcessDefinitionId(String processDefinitionId) {
    this.processDefinitionId = processDefinitionId;
  }

  public String getProcessDefinitionName() {
    return processDefinitionName;
  }

  public void setProcessDefinitionName(String processDefinitionName) {
    this.processDefinitionName = processDefinitionName;
  }

  public String getProcessDefinitionDescription() {
    return processDefinitionDescription;
  }

  public void setProcessDefinitionDescription(String processDefinitionDescription) {
    this.processDefinitionDescription = processDefinitionDescription;
  }

  public String getProcessDefinitionKey() {
    return processDefinitionKey;
  }

  public void setProcessDefinitionKey(String processDefinitionKey) {
    this.processDefinitionKey = processDefinitionKey;
  }

  public String getProcessDefinitionCategory() {
    return processDefinitionCategory;
  }

  public void setProcessDefinitionCategory(String processDefinitionCategory) {
    this.processDefinitionCategory = processDefinitionCategory;
  }

  public int getProcessDefinitionVersion() {
    return processDefinitionVersion;
  }

  public void setProcessDefinitionVersion(int processDefinitionVersion) {
    this.processDefinitionVersion = processDefinitionVersion;
  }

  public String getProcessDefinitionDeploymentId() {
    return processDefinitionDeploymentId;
  }

  public void setProcessDefinitionDeploymentId(String processDefinitionDeploymentId) {
    this.processDefinitionDeploymentId = processDefinitionDeploymentId;
  }

  public String getFormKey() {
    return formKey;
  }

  public void setFormKey(String formKey) {
    this.formKey = formKey;
  }

  public String getProcessInstanceStartUserId() {
    return processInstanceStartUserId;
  }

  public void setProcessInstanceStartUserId(String processInstanceStartUserId) {
    this.processInstanceStartUserId = processInstanceStartUserId;
  }

  public boolean isInitiatorCanCompleteTask() {
    return initiatorCanCompleteTask;
  }

  public void setInitiatorCanCompleteTask(boolean initiatorCanCompleteTask) {
    this.initiatorCanCompleteTask = initiatorCanCompleteTask;
  }

  public boolean isMemberOfCandidateGroup() {
    return isMemberOfCandidateGroup;
  }

  public void setMemberOfCandidateGroup(boolean isMemberOfCandidateGroup) {
    this.isMemberOfCandidateGroup = isMemberOfCandidateGroup;
  }

  public boolean isMemberOfCandidateUsers() {
    return isMemberOfCandidateUsers;
  }

  public void setMemberOfCandidateUsers(boolean isMemberOfCandidateUsers) {
    this.isMemberOfCandidateUsers = isMemberOfCandidateUsers;
  }

  public Date getEndDate() {
    return endDate;
  }

  public void setEndDate(Date endDate) {
    this.endDate = endDate;
  }

  public Long getDuration() {
    return duration;
  }

  public void setDuration(Long duration) {
    this.duration = duration;
  }

  public List getInvolvedPeople() {
    return involvedPeople;
  }

  public void setInvolvedPeople(List involvedPeople) {
    this.involvedPeople = involvedPeople;
  }
}