/*
* Copyright (c) 2014 Red Hat, Inc.
*
* 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.ovirt.engine.api.restapi.resource.openstack;
import java.util.List;
import javax.ws.rs.core.Response;
import org.apache.commons.lang.StringUtils;
import org.ovirt.engine.api.model.DataCenter;
import org.ovirt.engine.api.model.OpenStackVolumeProvider;
import org.ovirt.engine.api.model.OpenStackVolumeProviders;
import org.ovirt.engine.api.resource.openstack.OpenstackVolumeProviderResource;
import org.ovirt.engine.api.resource.openstack.OpenstackVolumeProvidersResource;
import org.ovirt.engine.api.restapi.resource.AbstractBackendCollectionResource;
import org.ovirt.engine.api.restapi.types.DataCenterMapper;
import org.ovirt.engine.api.restapi.util.QueryHelper;
import org.ovirt.engine.core.common.action.ProviderParameters;
import org.ovirt.engine.core.common.action.VdcActionType;
import org.ovirt.engine.core.common.businessentities.Provider;
import org.ovirt.engine.core.common.businessentities.ProviderType;
import org.ovirt.engine.core.common.businessentities.StorageDomainStatic;
import org.ovirt.engine.core.common.businessentities.StoragePool;
import org.ovirt.engine.core.common.interfaces.SearchType;
import org.ovirt.engine.core.common.queries.GetAllProvidersParameters;
import org.ovirt.engine.core.common.queries.IdQueryParameters;
import org.ovirt.engine.core.common.queries.NameQueryParameters;
import org.ovirt.engine.core.common.queries.VdcQueryType;
import org.ovirt.engine.core.compat.Guid;
public class BackendOpenStackVolumeProvidersResource
extends AbstractBackendCollectionResource<OpenStackVolumeProvider, Provider>
implements OpenstackVolumeProvidersResource {
public BackendOpenStackVolumeProvidersResource() {
super(OpenStackVolumeProvider.class, Provider.class);
}
@Override
public OpenStackVolumeProviders list() {
return mapCollection(getBackendCollection());
}
private OpenStackVolumeProviders mapCollection(List<Provider> entities) {
OpenStackVolumeProviders collection = new OpenStackVolumeProviders();
for (Provider entity : entities) {
OpenStackVolumeProvider provider = map(entity);
collection.getOpenStackVolumeProviders().add(addLinks(populate(provider, entity)));
}
return collection;
}
private List<Provider> getBackendCollection() {
if (isFiltered()) {
return getBackendCollection(
VdcQueryType.GetAllProviders,
new GetAllProvidersParameters(ProviderType.OPENSTACK_VOLUME)
);
}
else {
return getBackendCollection(SearchType.Provider, getConstraint());
}
}
private String getConstraint() {
StringBuilder buffer = new StringBuilder();
buffer.append("Providers: type=");
buffer.append(ProviderType.OPENSTACK_VOLUME.name());
String query = QueryHelper.getConstraint(httpHeaders, uriInfo, null, modelType, false);
if (StringUtils.isNotBlank(query)) {
buffer.append(" AND (");
buffer.append(query);
buffer.append(")");
}
return buffer.toString();
}
@Override
public Response add(OpenStackVolumeProvider provider) {
validateParameters(provider, "name");
if (provider.isSetDataCenter()) {
StoragePool storagePool = getStoragePool(provider.getDataCenter());
provider.setDataCenter(DataCenterMapper.map(storagePool, null));
}
return performCreate(
VdcActionType.AddProvider,
new ProviderParameters(map(provider)),
new QueryIdResolver<Guid>(VdcQueryType.GetProviderById, IdQueryParameters.class)
);
}
@Override
protected OpenStackVolumeProvider doPopulate(OpenStackVolumeProvider model, Provider entity) {
StoragePool storagePool = getStoragePoolIdByStorageDomainName(entity.getName());
if (storagePool != null) {
model.setDataCenter(DataCenterMapper.map(storagePool, null));
}
return model;
}
@Override
public OpenstackVolumeProviderResource getProviderResource(String id) {
return inject(new BackendOpenStackVolumeProviderResource(id, this));
}
public StoragePool getStoragePool(DataCenter dataCenter) {
StoragePool pool = null;
if (dataCenter.isSetId()) {
Guid id = asGuid(dataCenter.getId());
pool = getEntity(StoragePool.class, VdcQueryType.GetStoragePoolById,
new IdQueryParameters(id), "Datacenter: id=" + dataCenter.getId());
} else if (dataCenter.isSetName()) {
pool = getEntity(StoragePool.class, VdcQueryType.GetStoragePoolByDatacenterName,
new NameQueryParameters(dataCenter.getName()), "Datacenter: name=" + dataCenter.getName());
}
if (pool == null) {
notFound(DataCenter.class);
}
return pool;
}
private StoragePool getStoragePoolIdByStorageDomainName(String storageDomainName) {
StorageDomainStatic storageDomain = getEntity(StorageDomainStatic.class, VdcQueryType.GetStorageDomainByName,
new NameQueryParameters(storageDomainName), "StorageDomain: name=" + storageDomainName);
List<StoragePool> storagePools = getEntity(List.class, VdcQueryType.GetStoragePoolsByStorageDomainId,
new IdQueryParameters(storageDomain.getId()), "Datacenters");
if (!storagePools.isEmpty()) {
return storagePools.get(0);
}
// The storage domain is unattached
return null;
}
}