/*
* eGov suite of products aim to improve the internal efficiency,transparency,
* accountability and the service delivery of the government organizations.
*
* Copyright (C) <2015> eGovernments Foundation
*
* The updated version of eGov suite of products as by eGovernments Foundation
* is available at http://www.egovernments.org
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/ or
* http://www.gnu.org/licenses/gpl.html .
*
* In addition to the terms of the GPL license to be adhered to in using this
* program, the following additional terms are to be complied with:
*
* 1) All versions of this program, verbatim or modified must carry this
* Legal Notice.
*
* 2) Any misrepresentation of the origin of the material is prohibited. It
* is required that all modified versions of this material be marked in
* reasonable ways as different from the original version.
*
* 3) This license does not grant any rights to any user of the program
* with regards to rights under trademark law for use of the trade names
* or trademarks of eGovernments Foundation.
*
* In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org.
*/
package org.egov.infra.workflow.inbox;
import org.egov.infra.workflow.entity.State;
import org.egov.infra.workflow.entity.StateAware;
import org.egov.infra.workflow.entity.StateHistory;
import org.egov.infra.workflow.entity.WorkflowAction;
import org.egov.infra.workflow.entity.WorkflowTypes;
import org.egov.infra.workflow.service.StateService;
import org.egov.infra.workflow.service.WorkflowActionService;
import org.egov.infra.workflow.service.WorkflowTypeService;
import org.egov.infstr.services.EISServeable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.ArrayList;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.Collectors;
import static org.apache.commons.lang.StringUtils.EMPTY;
@Service
@Transactional(readOnly = true)
public class InboxRenderServiceDeligate<T extends StateAware> {
private static final Logger LOG = LoggerFactory.getLogger(InboxRenderServiceDeligate.class);
private static final String INBOX_RENDER_SERVICE_SUFFIX = "InboxRenderService";
@Autowired
private ApplicationContext applicationContext;
@Autowired
private StateService stateService;
@Autowired
@Qualifier("eisService")
private EISServeable eisService;
@Autowired
private WorkflowTypeService workflowTypeService;
@Autowired
private WorkflowActionService workflowActionService;
private static final Map<String, WorkflowTypes> WORKFLOWTYPE_CACHE = new ConcurrentHashMap<>();
public List<T> getInboxItems(final Long userId) {
return fetchInboxItems(userId, this.eisService.getPositionsForUser(userId, new Date()).parallelStream()
.map(position -> position.getId()).collect(Collectors.toList()));
}
public List<T> getInboxDraftItems(final Long userId) {
return fetchInboxDraftItems(userId, this.eisService.getPositionsForUser(userId, new Date()).parallelStream()
.map(position -> position.getId()).collect(Collectors.toList()));
}
public List<StateHistory> getWorkflowHistory(final Long stateId) {
return new LinkedList<>(stateService.getStateById(stateId).getHistory());
}
public List<T> fetchInboxItems(final Long userId, final List<Long> owners) {
final List<T> assignedWFItems = new ArrayList<>();
if(!owners.isEmpty()){
final List<String> wfTypes = stateService.getAssignedWorkflowTypeNames(owners);
for (final String wfType : wfTypes) {
final Optional<InboxRenderService<T>> inboxRenderService = this.getInboxRenderService(wfType);
if (inboxRenderService.isPresent())
assignedWFItems.addAll(inboxRenderService.get().getAssignedWorkflowItems(userId, owners));
}
}
return assignedWFItems;
}
public List<T> fetchInboxDraftItems(final Long userId, final List<Long> owners) {
final List<T> draftWfItems = new ArrayList<>();
if(!owners.isEmpty()){
final List<String> wfTypes = stateService.getAssignedWorkflowTypeNames(owners);
for (final String wfType : wfTypes) {
final Optional<InboxRenderService<T>> inboxRenderService = getInboxRenderService(wfType);
if (inboxRenderService.isPresent())
draftWfItems.addAll(inboxRenderService.get().getDraftWorkflowItems(userId, owners));
}
}
return draftWfItems;
}
public WorkflowTypes getWorkflowType(final String wfType) {
WorkflowTypes workflowType = WORKFLOWTYPE_CACHE.get(wfType);
if (workflowType == null) {
workflowType = workflowTypeService.getEnabledWorkflowTypeByType(wfType);
if (workflowType != null)
WORKFLOWTYPE_CACHE.put(wfType, workflowType);
}
return workflowType;
}
public Optional<InboxRenderService<T>> getInboxRenderService(final String wfType) {
InboxRenderService<T> inboxRenderService = null;
try {
if (getWorkflowType(wfType) != null)
inboxRenderService = applicationContext.getBean(wfType.concat(INBOX_RENDER_SERVICE_SUFFIX), InboxRenderService.class);
} catch (final BeansException e) {
LOG.warn("InboxRenderService bean for {} not found, have you defined {}InboxRenderService bean ?", wfType, wfType, e);
}
return Optional.ofNullable(inboxRenderService);
}
public String getNextAction(final State state) {
String nextAction = EMPTY;
if (state.getNextAction() != null) {
final WorkflowAction workflowAction = workflowActionService.getWorkflowActionByNameAndType(state.getNextAction(), state.getType());
if (workflowAction == null)
nextAction = state.getNextAction();
else
nextAction = workflowAction.getDescription() == null ? state.getNextAction() : workflowAction.getDescription();
}
return nextAction;
}
}