/*
* Copyright 2008-2013 LinkedIn, 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 voldemort.store.system;
import java.io.StringReader;
import java.util.List;
import voldemort.store.StoreDefinition;
import voldemort.utils.StoreDefinitionUtils;
import voldemort.xml.StoreDefinitionsMapper;
/**
* A file that defines all constants for system stores, including the store
* definitions
*
*/
public class SystemStoreConstants {
public static final String NAME_PREFIX = "voldsys$_";
public static enum SystemStoreName {
voldsys$_client_registry,
voldsys$_metadata_version_persistence,
voldsys$_store_quotas;
}
public static final String CLUSTER_VERSION_KEY = "cluster.xml";
public static final String STORES_VERSION_KEY = "stores.xml";
public static final String VERSIONS_METADATA_KEY = "metadata-versions";
// The route to all strategy does not bother about zones or rep factor
public static final String SYSTEM_STORE_SCHEMA = "<stores>"
+ " <store>"
+ " <name>voldsys$_client_registry</name>"
+ " <routing-strategy>all-routing</routing-strategy>"
+ " <hinted-handoff-strategy>proximity-handoff</hinted-handoff-strategy>"
+ " <persistence>memory</persistence>"
+ " <routing>client</routing>"
+ " <replication-factor>1</replication-factor>"
+ " <required-reads>1</required-reads>"
+ " <required-writes>1</required-writes>"
+ " <key-serializer>"
+ " <type>string</type>"
+ " </key-serializer>"
+ " <value-serializer>"
+ " <type>string</type>"
+ " </value-serializer>"
+ " <retention-days>7</retention-days>"
+ " </store>"
+ " <store>"
+ " <name>voldsys$_metadata_version_persistence</name>"
+ " <routing-strategy>all-routing</routing-strategy>"
+ " <hinted-handoff-strategy>proximity-handoff</hinted-handoff-strategy>"
+ " <persistence>file-backed-cache</persistence>"
+ " <routing>client</routing>"
+ " <replication-factor>1</replication-factor>"
+ " <required-reads>1</required-reads>"
+ " <required-writes>1</required-writes>"
+ " <key-serializer>"
+ " <type>string</type>"
+ " </key-serializer>"
+ " <value-serializer>"
+ " <type>string</type>"
+ " </value-serializer>"
+ " </store>"
+ " <store>"
+ " <name>voldsys$_store_quotas</name>"
+ " <routing-strategy>all-routing</routing-strategy>"
+ " <hinted-handoff-strategy>proximity-handoff</hinted-handoff-strategy>"
+ " <persistence>file-backed-cache</persistence>"
+ " <routing>client</routing>"
+ " <replication-factor>1</replication-factor>"
+ " <required-reads>1</required-reads>"
+ " <required-writes>1</required-writes>"
+ " <key-serializer>"
+ " <type>string</type>"
+ " </key-serializer>"
+ " <value-serializer>"
+ " <type>string</type>"
+ " </value-serializer>"
+ " </store>"
+ "</stores>";
public static boolean isSystemStore(String storeName) {
return (null == storeName ? false : storeName.startsWith(NAME_PREFIX));
}
public static List<StoreDefinition> getAllSystemStoreDefs() {
return (new StoreDefinitionsMapper()).readStoreList(new StringReader(SystemStoreConstants.SYSTEM_STORE_SCHEMA));
}
public static StoreDefinition getSystemStoreDef(String name) {
List<StoreDefinition> allDefs = getAllSystemStoreDefs();
return StoreDefinitionUtils.getStoreDefinitionWithName(allDefs, name);
}
}