com.bigdata.rdf.sail.webapp.ConfigParams Maven / Gradle / Ivy
/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
[email protected]
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.bigdata.rdf.sail.webapp;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import com.bigdata.journal.IIndexManager;
import com.bigdata.rdf.sparql.ast.service.ServiceFactory;
/**
* Interface declaring the config-params understood by the
* {@link BigdataRDFServletContextListener}.
*
* Note: When used in a jini/River configuration, the name of the component for
* those configuration options is the fully qualified class name for the
* {@link NanoSparqlServer}.
*
* @see Change
* web.xml parameter names to be consistent with Jini/River
*/
public interface ConfigParams {
/**
* The property file (for a standalone bigdata instance) or the jini
* configuration file (for a bigdata federation). The file must end with
* either ".properties" or ".config". This parameter is ignored if the
* {@link IIndexManager} is specified as an attribute of the web application
* context.
*/
final String PROPERTY_FILE = "propertyFile";
/**
* The default bigdata namespace of for the triple or quad store instance to
* be exposed (default {@link #DEFAULT_NAMESPACE}). Note that there can be
* many triple or quad store instances within a bigdata instance.
*/
final String NAMESPACE = "namespace";
final String DEFAULT_NAMESPACE = "kb";
/**
* When true, an instance of the specified {@link #NAMESPACE}
* will be created if none exists.
*/
final String CREATE = "create";
final boolean DEFAULT_CREATE = true;
/**
* The size of the thread pool used to service SPARQL queries -OR- ZERO
* (0) for an unbounded thread pool (default
* {@value #DEFAULT_QUERY_THREAD_POOL_SIZE}).
*/
final String QUERY_THREAD_POOL_SIZE = "queryThreadPoolSize";
final int DEFAULT_QUERY_THREAD_POOL_SIZE = 16;
/**
* Force a compacting merge of all shards on all data services in a
* bigdata federation (optional, default false).
*
* This option should only be used for benchmarking
* purposes.
*/
final String FORCE_OVERFLOW = "forceOverflow";
/**
* The commit time against which the server will assert a read lock by
* holding open a read-only transaction against that commit point
* (optional). When given, queries will default to read against this
* commit point. Otherwise queries will default to read against the most
* recent commit point on the database. Regardless, each query will be
* issued against a read-only transaction.
*/
final String READ_LOCK = "readLock";
/**
* When true and the KB instance is in the quads
* mode, each named graph will also be described in in the same level of
* detail as the default graph (default
* {@value #DEFAULT_DESCRIBE_EACH_NAMED_GRAPH}). Otherwise only the default
* graph will be described.
*
* Note: I have changed the default to false since this
* operation can be long-running for messy web graphs such as the TBL six
* degrees of freedom crawl. We wind up with one named graph for each
* "friend", which is a lot of named graphs, plus there are a lot of
* predicates that show up in web data. Together, this makes the per-named
* graph response not a very good default. However, you can certainly enable
* this if you only have a reasonable number of named graphs and/or only
* expose the SPARQL end point to a limited audience.
*/
final String DESCRIBE_EACH_NAMED_GRAPH = "describeEachNamedGraph";
final boolean DEFAULT_DESCRIBE_EACH_NAMED_GRAPH = false;
/**
* When true, requests will be refused for mutation operations
* on the database made through the REST API. This may be used to help lock
* down a public facing interface.
*/
final String READ_ONLY = "readOnly";
final boolean DEFAULT_READ_ONLY = false;
/**
* When non-zero, this specifies the timeout (milliseconds) for a query.
* This may be used to limit resource consumption on a public facing
* interface.
*/
final String QUERY_TIMEOUT = "queryTimeout";
final long DEFAULT_QUERY_TIMEOUT = 0L;
/**
* When non-zero, this specifies the timeout (milliseconds) for a warmup
* period when the NSS starts up (warmup is disabled when this is ZERO).
*
* @see pre-heat the journal
* on startup
*/
final String WARMUP_TIMEOUT = "warmupTimeout";
final long DEFAULT_WARMUP_TIMEOUT = 0L;
/**
* The size of the thread pool used to warmup the journal (default
* {@value #DEFAULT_WARMUP_THREAD_POOL_SIZE}).
*
* @see pre-heat the journal
* on startup
*/
final String WARMUP_THREAD_POOL_SIZE = "warmupThreadPoolSize";
final int DEFAULT_WARMUP_THREAD_POOL_SIZE = 20;
/**
* A comma delimited list of namespaces to be processed during the warmup
* procedure (optional). When not specified, ALL namespaces will be processed.
*
* @see pre-heat the journal
* on startup
*/
final String WARMUP_NAMESPACE_LIST = "warmupNamespaceList";
String DEFAULT_WARMUP_NAMESPACE_LIST = "";
/**
* A class that implements the {@link BlueprintsServletProxy}.
*
* @see Refactor Blueprints
*
*/
final String BLUEPRINTS_SERVLET_PROVIDER = "blueprintsServletProvider";
final static String DEFAULT_BLUEPRINTS_SERVLET_PROVIDER = BlueprintsServletProxy.getDefaultProvider();
/**
* A class that implements the {@link MapgraphServletProxy}.
*/
final String MAPGRAPH_SERVLET_PROVIDER = "mapgraphServletProvider";
final static String DEFAULT_MAPGRAPH_SERVLET_PROVIDER = MapgraphServletProxy.getDefaultProvider();
/**
* List of the services this instance is allowed to call out to.
*/
String SERVICE_WHITELIST = "serviceWhitelist";
}