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/*
* Copyright 2010-2012 Ning, Inc.
*
* Ning 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 org.killbill.billing.util.audit.dao;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.inject.Inject;
import org.killbill.billing.ObjectType;
import org.killbill.billing.callcontext.InternalTenantContext;
import org.killbill.billing.util.api.AuditLevel;
import org.killbill.billing.util.audit.AuditLog;
import org.killbill.billing.util.audit.ChangeType;
import org.killbill.billing.util.audit.DefaultAccountAuditLogs;
import org.killbill.billing.util.audit.DefaultAccountAuditLogsForObjectType;
import org.killbill.billing.util.audit.DefaultAuditLog;
import org.killbill.billing.util.cache.CacheControllerDispatcher;
import org.killbill.billing.util.dao.NonEntityDao;
import org.killbill.billing.util.dao.NonEntitySqlDao;
import org.killbill.billing.util.dao.RecordIdIdMappings;
import org.killbill.billing.util.dao.TableName;
import org.killbill.billing.util.entity.dao.EntitySqlDao;
import org.killbill.billing.util.entity.dao.EntitySqlDaoTransactionWrapper;
import org.killbill.billing.util.entity.dao.EntitySqlDaoTransactionalJdbiWrapper;
import org.killbill.billing.util.entity.dao.EntitySqlDaoWrapperFactory;
import org.killbill.clock.Clock;
import org.skife.jdbi.v2.IDBI;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterators;
import com.google.common.collect.Lists;
public class DefaultAuditDao implements AuditDao {
private final NonEntitySqlDao nonEntitySqlDao;
private final EntitySqlDaoTransactionalJdbiWrapper transactionalSqlDao;
@Inject
public DefaultAuditDao(final IDBI dbi, final Clock clock, final CacheControllerDispatcher cacheControllerDispatcher, final NonEntityDao nonEntityDao) {
this.nonEntitySqlDao = dbi.onDemand(NonEntitySqlDao.class);
this.transactionalSqlDao = new EntitySqlDaoTransactionalJdbiWrapper(dbi, clock, cacheControllerDispatcher, nonEntityDao);
}
@Override
public DefaultAccountAuditLogs getAuditLogsForAccountRecordId(final AuditLevel auditLevel, final InternalTenantContext context) {
final UUID accountId = nonEntitySqlDao.getIdFromObject(context.getAccountRecordId(), TableName.ACCOUNT.getTableName());
// Lazy evaluate records to minimize the memory footprint (these can yield a lot of results)
// We usually always want to wrap our queries in an EntitySqlDaoTransactionWrapper... except here.
// Since we want to stream the results out, we don't want to auto-commit when this method returns.
final EntitySqlDao auditSqlDao = transactionalSqlDao.onDemandForStreamingResults(EntitySqlDao.class);
final Iterator auditLogsForAccountRecordId = auditSqlDao.getAuditLogsForAccountRecordId(context);
final Iterator allAuditLogs = buildAuditLogsFromModelDao(auditLogsForAccountRecordId, context);
return new DefaultAccountAuditLogs(accountId, auditLevel, allAuditLogs);
}
@Override
public DefaultAccountAuditLogsForObjectType getAuditLogsForAccountRecordId(final TableName tableName, final AuditLevel auditLevel, final InternalTenantContext context) {
final String actualTableName;
if (tableName.hasHistoryTable()) {
actualTableName = tableName.getHistoryTableName().name(); // upper cased
} else {
actualTableName = tableName.getTableName();
}
// Lazy evaluate records to minimize the memory footprint (these can yield a lot of results)
// We usually always want to wrap our queries in an EntitySqlDaoTransactionWrapper... except here.
// Since we want to stream the results out, we don't want to auto-commit when this method returns.
final EntitySqlDao auditSqlDao = transactionalSqlDao.onDemandForStreamingResults(EntitySqlDao.class);
final Iterator auditLogsForTableNameAndAccountRecordId = auditSqlDao.getAuditLogsForTableNameAndAccountRecordId(actualTableName, context);
final Iterator allAuditLogs = buildAuditLogsFromModelDao(auditLogsForTableNameAndAccountRecordId, context);
return new DefaultAccountAuditLogsForObjectType(auditLevel, allAuditLogs);
}
private Iterator buildAuditLogsFromModelDao(final Iterator auditLogsForAccountRecordId, final InternalTenantContext tenantContext) {
final Map> recordIdIdsCache = new HashMap>();
final Map> historyRecordIdIdsCache = new HashMap>();
return Iterators.transform(auditLogsForAccountRecordId,
new Function() {
@Override
public AuditLog apply(final AuditLogModelDao input) {
// If input is for e.g. TAG_DEFINITION_HISTORY, retrieve TAG_DEFINITIONS
// For tables without history, e.g. TENANT, originalTableNameForHistoryTableName will be null
final TableName originalTableNameForHistoryTableName = findTableNameForHistoryTableName(input.getTableName());
final ObjectType objectType;
final UUID auditedEntityId;
if (originalTableNameForHistoryTableName != null) {
// input point to a history entry
objectType = originalTableNameForHistoryTableName.getObjectType();
if (historyRecordIdIdsCache.get(originalTableNameForHistoryTableName) == null) {
if (TableName.ACCOUNT.equals(originalTableNameForHistoryTableName)) {
final Iterable mappings = nonEntitySqlDao.getHistoryRecordIdIdMappingsForAccountsTable(originalTableNameForHistoryTableName.getTableName(),
input.getTableName().getTableName(),
tenantContext);
historyRecordIdIdsCache.put(originalTableNameForHistoryTableName, RecordIdIdMappings.toMap(mappings));
} else if (TableName.TAG_DEFINITIONS.equals(originalTableNameForHistoryTableName)) {
final Iterable mappings = nonEntitySqlDao.getHistoryRecordIdIdMappingsForTablesWithoutAccountRecordId(originalTableNameForHistoryTableName.getTableName(),
input.getTableName().getTableName(),
tenantContext);
historyRecordIdIdsCache.put(originalTableNameForHistoryTableName, RecordIdIdMappings.toMap(mappings));
} else {
final Iterable mappings = nonEntitySqlDao.getHistoryRecordIdIdMappings(originalTableNameForHistoryTableName.getTableName(),
input.getTableName().getTableName(),
tenantContext);
historyRecordIdIdsCache.put(originalTableNameForHistoryTableName, RecordIdIdMappings.toMap(mappings));
}
}
auditedEntityId = historyRecordIdIdsCache.get(originalTableNameForHistoryTableName).get(input.getTargetRecordId());
} else {
objectType = input.getTableName().getObjectType();
if (recordIdIdsCache.get(input.getTableName()) == null) {
final Iterable mappings = nonEntitySqlDao.getRecordIdIdMappings(input.getTableName().getTableName(),
tenantContext);
recordIdIdsCache.put(input.getTableName(), RecordIdIdMappings.toMap(mappings));
}
auditedEntityId = recordIdIdsCache.get(input.getTableName()).get(input.getTargetRecordId());
}
return new DefaultAuditLog(input, objectType, auditedEntityId);
}
private TableName findTableNameForHistoryTableName(final TableName historyTableName) {
for (final TableName tableName : TableName.values()) {
if (historyTableName.equals(tableName.getHistoryTableName())) {
return tableName;
}
}
return null;
}
});
}
@Override
public List getAuditLogsForId(final TableName tableName, final UUID objectId, final AuditLevel auditLevel, final InternalTenantContext context) {
if (tableName.hasHistoryTable()) {
return doGetAuditLogsViaHistoryForId(tableName, objectId, auditLevel, context);
} else {
return doGetAuditLogsForId(tableName, objectId, auditLevel, context);
}
}
private List doGetAuditLogsForId(final TableName tableName, final UUID objectId, final AuditLevel auditLevel, final InternalTenantContext context) {
final Long recordId = nonEntitySqlDao.getRecordIdFromObject(objectId.toString(), tableName.getTableName());
if (recordId == null) {
return ImmutableList.of();
} else {
return getAuditLogsForRecordId(tableName, objectId, recordId, auditLevel, context);
}
}
private List doGetAuditLogsViaHistoryForId(final TableName tableName, final UUID objectId, final AuditLevel auditLevel, final InternalTenantContext context) {
final TableName historyTableName = tableName.getHistoryTableName();
if (historyTableName == null) {
throw new IllegalStateException("History table shouldn't be null for " + tableName);
}
final Long targetRecordId = nonEntitySqlDao.getRecordIdFromObject(objectId.toString(), tableName.getTableName());
final List allAuditLogs = transactionalSqlDao.execute(new EntitySqlDaoTransactionWrapper>() {
@Override
public List inTransaction(final EntitySqlDaoWrapperFactory entitySqlDaoWrapperFactory) throws Exception {
final List auditLogsViaHistoryForTargetRecordId = entitySqlDaoWrapperFactory.become(EntitySqlDao.class).getAuditLogsViaHistoryForTargetRecordId(historyTableName.name(),
historyTableName.getTableName().toLowerCase(),
targetRecordId,
context);
return buildAuditLogsFromModelDao(auditLogsViaHistoryForTargetRecordId, tableName.getObjectType(), objectId);
}
});
return filterAuditLogs(auditLevel, allAuditLogs);
}
private List getAuditLogsForRecordId(final TableName tableName, final UUID auditedEntityId, final Long targetRecordId, final AuditLevel auditLevel, final InternalTenantContext context) {
final List allAuditLogs = transactionalSqlDao.execute(new EntitySqlDaoTransactionWrapper>() {
@Override
public List inTransaction(final EntitySqlDaoWrapperFactory entitySqlDaoWrapperFactory) throws Exception {
final List auditLogsForTargetRecordId = entitySqlDaoWrapperFactory.become(EntitySqlDao.class).getAuditLogsForTargetRecordId(tableName.name(),
targetRecordId,
context);
return buildAuditLogsFromModelDao(auditLogsForTargetRecordId, tableName.getObjectType(), auditedEntityId);
}
});
return filterAuditLogs(auditLevel, allAuditLogs);
}
private List buildAuditLogsFromModelDao(final List auditLogsForAccountRecordId, final ObjectType objectType, final UUID auditedEntityId) {
return Lists.transform(auditLogsForAccountRecordId,
new Function() {
@Override
public AuditLog apply(final AuditLogModelDao input) {
return new DefaultAuditLog(input, objectType, auditedEntityId);
}
});
}
private List filterAuditLogs(final AuditLevel auditLevel, final List auditLogs) {
// TODO Do the filtering in the query
if (AuditLevel.FULL.equals(auditLevel)) {
return auditLogs;
} else if (AuditLevel.MINIMAL.equals(auditLevel) && !auditLogs.isEmpty()) {
if (ChangeType.INSERT.equals(auditLogs.get(0).getChangeType())) {
return ImmutableList.of(auditLogs.get(0));
} else {
// We may be coming here via the history code path - only a single mapped history record id
// will be for the initial INSERT
return ImmutableList.of();
}
} else if (AuditLevel.NONE.equals(auditLevel)) {
return ImmutableList.of();
} else {
return auditLogs;
}
}
}
