// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 com.cloud.domain.dao;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.ejb.Local;
import org.apache.log4j.Logger;
import com.cloud.domain.Domain;
import com.cloud.domain.DomainVO;
import com.cloud.utils.db.DB;
import com.cloud.utils.db.GenericDaoBase;
import com.cloud.utils.db.GlobalLock;
import com.cloud.utils.db.SearchBuilder;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.Transaction;
@Local(value={DomainDao.class})
public class DomainDaoImpl extends GenericDaoBase<DomainVO, Long> implements DomainDao {
private static final Logger s_logger = Logger.getLogger(DomainDaoImpl.class);
protected SearchBuilder<DomainVO> DomainNameLikeSearch;
protected SearchBuilder<DomainVO> ParentDomainNameLikeSearch;
protected SearchBuilder<DomainVO> DomainPairSearch;
protected SearchBuilder<DomainVO> ImmediateChildDomainSearch;
protected SearchBuilder<DomainVO> FindAllChildrenSearch;
protected SearchBuilder<DomainVO> AllFieldsSearch;
public DomainDaoImpl () {
DomainNameLikeSearch = createSearchBuilder();
DomainNameLikeSearch.and("name", DomainNameLikeSearch.entity().getName(), SearchCriteria.Op.LIKE);
DomainNameLikeSearch.done();
ParentDomainNameLikeSearch = createSearchBuilder();
ParentDomainNameLikeSearch.and("name", ParentDomainNameLikeSearch.entity().getName(), SearchCriteria.Op.LIKE);
ParentDomainNameLikeSearch.and("parent", ParentDomainNameLikeSearch.entity().getName(), SearchCriteria.Op.EQ);
ParentDomainNameLikeSearch.done();
DomainPairSearch = createSearchBuilder();
DomainPairSearch.and("id", DomainPairSearch.entity().getId(), SearchCriteria.Op.IN);
DomainPairSearch.done();
ImmediateChildDomainSearch = createSearchBuilder();
ImmediateChildDomainSearch.and("parent", ImmediateChildDomainSearch.entity().getParent(), SearchCriteria.Op.EQ);
ImmediateChildDomainSearch.done();
FindAllChildrenSearch = createSearchBuilder();
FindAllChildrenSearch.and("path", FindAllChildrenSearch.entity().getPath(), SearchCriteria.Op.LIKE);
FindAllChildrenSearch.and("id", FindAllChildrenSearch.entity().getId(), SearchCriteria.Op.NEQ);
FindAllChildrenSearch.done();
AllFieldsSearch = createSearchBuilder();
AllFieldsSearch.and("name", AllFieldsSearch.entity().getName(), SearchCriteria.Op.EQ);
AllFieldsSearch.and("state", AllFieldsSearch.entity().getState(), SearchCriteria.Op.EQ);
AllFieldsSearch.and("owner", AllFieldsSearch.entity().getAccountId(), SearchCriteria.Op.EQ);
AllFieldsSearch.and("path", AllFieldsSearch.entity().getPath(), SearchCriteria.Op.EQ);
AllFieldsSearch.and("parent", AllFieldsSearch.entity().getParent(), SearchCriteria.Op.EQ);
AllFieldsSearch.done();
}
private static String allocPath(DomainVO parentDomain, String name) {
String parentPath = parentDomain.getPath();
return parentPath + name + "/";
}
@Override
public synchronized DomainVO create(DomainVO domain) {
// make sure domain name is valid
String domainName = domain.getName();
if (domainName != null) {
if (domainName.contains("/")) {
throw new IllegalArgumentException("Domain name contains one or more invalid characters. Please enter a name without '/' characters.");
}
} else {
throw new IllegalArgumentException("Domain name is null. Please specify a valid domain name.");
}
long parent = DomainVO.ROOT_DOMAIN;
if(domain.getParent() != null && domain.getParent().longValue() >= DomainVO.ROOT_DOMAIN) {
parent = domain.getParent().longValue();
}
DomainVO parentDomain = findById(parent);
if(parentDomain == null) {
s_logger.error("Unable to load parent domain: " + parent);
return null;
}
Transaction txn = Transaction.currentTxn();
try {
txn.start();
parentDomain = this.lockRow(parent, true);
if(parentDomain == null) {
s_logger.error("Unable to lock parent domain: " + parent);
return null;
}
domain.setPath(allocPath(parentDomain, domain.getName()));
domain.setLevel(parentDomain.getLevel() + 1);
parentDomain.setNextChildSeq(parentDomain.getNextChildSeq() + 1); // FIXME: remove sequence number?
parentDomain.setChildCount(parentDomain.getChildCount() + 1);
persist(domain);
update(parentDomain.getId(), parentDomain);
txn.commit();
return domain;
} catch(Exception e) {
s_logger.error("Unable to create domain due to " + e.getMessage(), e);
txn.rollback();
return null;
}
}
@Override
@DB
public boolean remove(Long id) {
// check for any active users / domains assigned to the given domain id and don't remove the domain if there are any
if (id != null && id.longValue() == DomainVO.ROOT_DOMAIN) {
s_logger.error("Can not remove domain " + id + " as it is ROOT domain");
return false;
}
DomainVO domain = findById(id);
if(domain == null) {
s_logger.error("Unable to remove domain as domain " + id + " no longer exists");
return false;
}
if(domain.getParent() == null) {
s_logger.error("Invalid domain " + id + ", orphan?");
return false;
}
String sql = "SELECT * from account where domain_id = " + id + " and removed is null";
String sql1 = "SELECT * from domain where parent = " + id + " and removed is null";
boolean success = false;
Transaction txn = Transaction.currentTxn();
try {
txn.start();
DomainVO parentDomain = super.lockRow(domain.getParent(), true);
if(parentDomain == null) {
s_logger.error("Unable to load parent domain: " + domain.getParent());
return false;
}
PreparedStatement stmt = txn.prepareAutoCloseStatement(sql);
ResultSet rs = stmt.executeQuery();
if (rs.next()) {
return false;
}
stmt = txn.prepareAutoCloseStatement(sql1);
rs = stmt.executeQuery();
if (rs.next()) {
return false;
}
parentDomain.setChildCount(parentDomain.getChildCount() - 1);
update(parentDomain.getId(), parentDomain);
success = super.remove(id);
txn.commit();
} catch (SQLException ex) {
success = false;
s_logger.error("error removing domain: " + id, ex);
txn.rollback();
}
return success;
}
@Override
public DomainVO findDomainByPath(String domainPath) {
SearchCriteria<DomainVO> sc = createSearchCriteria();
sc.addAnd("path", SearchCriteria.Op.EQ, domainPath);
return findOneBy(sc);
}
@Override
public DomainVO findImmediateChildForParent(Long parentId){
SearchCriteria<DomainVO> sc = ImmediateChildDomainSearch.create();
sc.setParameters("parent", parentId);
return (listBy(sc).size() > 0 ? listBy(sc).get(0) : null);//may need to revisit for multiple children case
}
@Override
public List<DomainVO> findImmediateChildrenForParent(Long parentId){
SearchCriteria<DomainVO> sc = ImmediateChildDomainSearch.create();
sc.setParameters("parent", parentId);
return listBy(sc);
}
@Override
public List<DomainVO> findAllChildren(String path, Long parentId){
SearchCriteria<DomainVO> sc = FindAllChildrenSearch.create();
sc.setParameters("path", "%"+path+"%");
sc.setParameters("id", parentId);
return listBy(sc);
}
@Override
public boolean isChildDomain(Long parentId, Long childId) {
if ((parentId == null) || (childId == null)) {
return false;
}
if (parentId.equals(childId)) {
return true;
}
boolean result = false;
SearchCriteria<DomainVO> sc = DomainPairSearch.create();
sc.setParameters("id", parentId, childId);
List<DomainVO> domainPair = listBy(sc);
if ((domainPair != null) && (domainPair.size() == 2)) {
DomainVO d1 = domainPair.get(0);
DomainVO d2 = domainPair.get(1);
if (d1.getId() == parentId) {
result = d2.getPath().startsWith(d1.getPath());
} else {
result = d1.getPath().startsWith(d2.getPath());
}
}
return result;
}
@Override
public List<DomainVO> findInactiveDomains() {
SearchCriteria<DomainVO> sc = AllFieldsSearch.create();
sc.setParameters("state", Domain.State.Inactive);
return listBy(sc);
}
@Override
public Set<Long> getDomainParentIds(long domainId) {
Set<Long> parentDomains = new HashSet<Long>();
Domain domain = findById(domainId);
parentDomains.add(domain.getId());
while (domain.getParent() != null) {
domain = findById(domain.getParent());
parentDomains.add(domain.getId());
}
return parentDomains;
}
}