package com.thinkbiganalytics.metadata.modeshape.template;
/*-
* #%L
* thinkbig-metadata-modeshape
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* 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.
* #L%
*/
import java.io.Serializable;
import java.security.Principal;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;
import javax.inject.Inject;
import org.apache.commons.lang3.StringUtils;
import org.joda.time.DateTime;
import org.springframework.security.core.context.SecurityContextHolder;
import com.thinkbiganalytics.metadata.api.event.MetadataChange.ChangeType;
import com.thinkbiganalytics.metadata.api.event.MetadataEventService;
import com.thinkbiganalytics.metadata.api.event.template.TemplateChange;
import com.thinkbiganalytics.metadata.api.event.template.TemplateChangeEvent;
import com.thinkbiganalytics.metadata.api.template.FeedManagerTemplate;
import com.thinkbiganalytics.metadata.api.template.FeedManagerTemplateProvider;
import com.thinkbiganalytics.metadata.api.template.TemplateDeletionException;
import com.thinkbiganalytics.metadata.modeshape.BaseJcrProvider;
import com.thinkbiganalytics.metadata.modeshape.JcrMetadataAccess;
import com.thinkbiganalytics.metadata.modeshape.MetadataRepositoryException;
import com.thinkbiganalytics.metadata.modeshape.common.EntityUtil;
import com.thinkbiganalytics.metadata.modeshape.common.JcrEntity;
import com.thinkbiganalytics.metadata.modeshape.security.action.JcrAllowedActions;
import com.thinkbiganalytics.metadata.modeshape.security.action.JcrAllowedEntityActionsProvider;
import com.thinkbiganalytics.metadata.modeshape.support.JcrQueryUtil;
import com.thinkbiganalytics.metadata.modeshape.support.JcrUtil;
import com.thinkbiganalytics.security.AccessController;
import com.thinkbiganalytics.security.action.AllowedActions;
import com.thinkbiganalytics.security.role.SecurityRole;
import com.thinkbiganalytics.security.role.SecurityRoleProvider;
/**
*/
public class JcrFeedTemplateProvider extends BaseJcrProvider<FeedManagerTemplate, FeedManagerTemplate.ID> implements FeedManagerTemplateProvider {
@Inject
private MetadataEventService metadataEventService;
@Inject
private SecurityRoleProvider roleProvider;
@Inject
private JcrAllowedEntityActionsProvider actionsProvider;
@Inject
private AccessController accessController;
@Override
public Class<? extends FeedManagerTemplate> getEntityClass() {
return JcrFeedTemplate.class;
}
@Override
public Class<? extends JcrEntity> getJcrEntityClass() {
return JcrFeedTemplate.class;
}
@Override
public String getNodeType(Class<? extends JcrEntity> jcrEntityType) {
return JcrFeedTemplate.NODE_TYPE;
}
public FeedManagerTemplate ensureTemplate(String systemName) {
String sanitiezedName = sanitizeSystemName(systemName);
String path = EntityUtil.pathForTemplates();
Map<String, Object> props = new HashMap<>();
props.put(JcrFeedTemplate.TITLE, sanitiezedName);
boolean newTemplate = !JcrUtil.hasNode(getSession(), path, sanitiezedName);
JcrFeedTemplate template = (JcrFeedTemplate) findOrCreateEntity(path, sanitiezedName, props);
if (newTemplate) {
if (this.accessController.isEntityAccessControlled()) {
List<SecurityRole> roles = this.roleProvider.getEntityRoles(SecurityRole.TEMPLATE);
this.actionsProvider.getAvailableActions(AllowedActions.TEMPLATE)
.ifPresent(actions -> template.enableAccessControl((JcrAllowedActions) actions, JcrMetadataAccess.getActiveUser(), roles));
} else {
this.actionsProvider.getAvailableActions(AllowedActions.TEMPLATE)
.ifPresent(actions -> template.disableAccessControl((JcrAllowedActions) actions, JcrMetadataAccess.getActiveUser()));
}
addPostFeedChangeAction(template, ChangeType.CREATE);
}
return template;
}
@Override
public FeedManagerTemplate findByName(String name) {
if (StringUtils.isNotBlank(name)) {
String sanitiezedTitle = sanitizeTitle(name);
String query = "SELECT * from " + EntityUtil.asQueryProperty(JcrFeedTemplate.NODE_TYPE) + " as e where e." + EntityUtil.asQueryProperty(JcrFeedTemplate.TITLE) + " = $title";
Map<String, String> bindParams = new HashMap<>();
bindParams.put("title", sanitiezedTitle);
return JcrQueryUtil.findFirst(getSession(), query, bindParams, JcrFeedTemplate.class);
} else {
return null;
}
}
@Override
public FeedManagerTemplate findByNifiTemplateId(String nifiTemplateId) {
String
query =
"SELECT * from " + EntityUtil.asQueryProperty(JcrFeedTemplate.NODE_TYPE) + " as e where e." + EntityUtil.asQueryProperty(JcrFeedTemplate.NIFI_TEMPLATE_ID) + " = $nifiTemplateId";
Map<String, String> bindParams = new HashMap<>();
bindParams.put("nifiTemplateId", nifiTemplateId);
return JcrQueryUtil.findFirst(getSession(), query, bindParams, JcrFeedTemplate.class);
}
public FeedManagerTemplate.ID resolveId(Serializable fid) {
return new JcrFeedTemplate.FeedTemplateId(fid);
}
@Override
public FeedManagerTemplate enable(FeedManagerTemplate.ID id) {
JcrFeedTemplate template = (JcrFeedTemplate) findById(id);
if (template != null) {
if (!template.isEnabled()) {
template.enable();
addPostFeedChangeAction(template, ChangeType.UPDATE);
return update(template);
}
return template;
} else {
throw new MetadataRepositoryException("Unable to find template with id" + id);
}
}
@Override
public FeedManagerTemplate disable(FeedManagerTemplate.ID id) {
JcrFeedTemplate template = (JcrFeedTemplate) findById(id);
if (template != null) {
if (template.isEnabled()) {
template.disable();
addPostFeedChangeAction(template, ChangeType.UPDATE);
return update(template);
}
return template;
} else {
throw new MetadataRepositoryException("Unable to find template with id" + id);
}
}
@Override
public boolean deleteTemplate(FeedManagerTemplate.ID id) throws TemplateDeletionException {
FeedManagerTemplate item = findById(id);
return deleteTemplate(item);
}
public boolean deleteTemplate(FeedManagerTemplate feedManagerTemplate) throws TemplateDeletionException {
if (feedManagerTemplate != null && (feedManagerTemplate.getFeeds() == null || feedManagerTemplate.getFeeds().size() == 0)) {
addPostFeedChangeAction(feedManagerTemplate, ChangeType.DELETE);
super.delete(feedManagerTemplate);
return true;
} else {
throw new TemplateDeletionException(feedManagerTemplate.getName(), feedManagerTemplate.getId().toString(), "There are still feeds assigned to this template.");
}
}
@Override
public void delete(FeedManagerTemplate feedManagerTemplate) {
deleteTemplate(feedManagerTemplate);
}
@Override
public void deleteById(FeedManagerTemplate.ID id) {
deleteTemplate(id);
}
/**
* Registers an action that produces a template change event upon a successful transaction commit.
*
* @param template the feed to being created
*/
private void addPostFeedChangeAction(FeedManagerTemplate template, ChangeType changeType) {
FeedManagerTemplate.State state = template.getState();
FeedManagerTemplate.ID id = template.getId();
String desc = template.getName();
DateTime createTime = template.getCreatedTime();
final Principal principal = SecurityContextHolder.getContext().getAuthentication() != null
? SecurityContextHolder.getContext().getAuthentication()
: null;
Consumer<Boolean> action = (success) -> {
if (success) {
TemplateChange change = new TemplateChange(changeType, desc, id, state);
TemplateChangeEvent event = new TemplateChangeEvent(change, createTime, principal);
metadataEventService.notify(event);
}
};
JcrMetadataAccess.addPostTransactionAction(action);
}
}