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Huawei Cloud Open API SDK for Java
/*******************************************************************************
* Copyright 2017 Huawei Technologies Co., Ltd.
*
* 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 com.huawei.openstack4j.openstack.database.internal;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.collect.Maps;
import com.huawei.openstack4j.openstack.database.domain.DatabaseParam;
import com.huawei.openstack4j.openstack.database.domain.InstanceParamOperationResult;
import com.huawei.openstack4j.openstack.database.domain.DatabaseParam.Parameters;
/**
* The implementation of manipulation of {@link DatabaseParam}
*
* @author QianBiao.NG
* @date 2017-08-03 11:06:34
*/
public class DatabaseParamService extends BaseDatabaseServices {
/**
* list all configuration parameters of a specification version of datastore
*
* @param dataStoreVersionId datastore version identifier
* @return a list of {@link DatabaseParam} instances
*/
public List list(String dataStoreVersionId) {
Preconditions.checkArgument(!Strings.isNullOrEmpty(dataStoreVersionId),
"parameter `dataStoreVersionId` should not be empty");
return get(Parameters.class, uri("/datastores/versions/%s/parameters", dataStoreVersionId)).execute().getList();
}
/**
* get the details of a configuration parameter
*
* @param dataStoreVersionId datastore version identifier
* @param paramName datastore configuration parameter name
* @return an instance of {@link DatabaseParam}
*/
public DatabaseParam get(String dataStoreVersionId, String paramName) {
Preconditions.checkArgument(!Strings.isNullOrEmpty(dataStoreVersionId),
"parameter `dataStoreVersionId` should not be empty");
Preconditions.checkArgument(!Strings.isNullOrEmpty(paramName), "parameter `paramName` should not be empty");
return get(DatabaseParam.class, uri("/datastores/versions/%s/parameters/%s", dataStoreVersionId, paramName))
.execute();
}
/**
* config database parameters for an instance
*
* @param instanceId database instance identifier
* @param params database parameters map
* @return {@link InstanceParamOperationResult} instance
*/
public InstanceParamOperationResult config(String instanceId, Map params) {
Preconditions.checkArgument(!Strings.isNullOrEmpty(instanceId), "parameter `instanceId` should not be empty");
Preconditions.checkArgument(params != null && !params.isEmpty(), "parameter `params` should not be empty");
HashMap entity = Maps.newHashMap();
entity.put("values", params);
return put(InstanceParamOperationResult.class, uri("/instances/%s/parameters", instanceId)).entity(entity)
.execute();
}
/**
* restore database parameters for an instance
*
* @param instanceId database instance identifier
* @return {@link InstanceParamOperationResult} instance
*/
public InstanceParamOperationResult restore(String instanceId) {
Preconditions.checkArgument(!Strings.isNullOrEmpty(instanceId), "parameter `instanceId` should not be empty");
HashMap entity = Maps.newHashMap();
return put(InstanceParamOperationResult.class, uri("/instances/%s/parameters/default", instanceId)).entity(entity)
.execute();
}
}