com.bigdata.rdf.sail.webapp

Class BackupServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.bigdata.rdf.sail.webapp.BigdataServlet

com.bigdata.rdf.sail.webapp.BigdataRDFServlet

com.bigdata.rdf.sail.webapp.BackupServlet

All Implemented Interfaces:

IMimeTypes, Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class BackupServlet
extends BigdataRDFServlet

Request an online backup of the journal (non-HA Mode). The backup will be written to the backup file specified as the value of the Request Parameter, i.e. curl --data-urlencode "file=/path/to/backup.jnl" http://localhost:9999/blazegraph/backup Will place the backup file in /path/to/backup.jnl. If not backupFile is specified, it will be written to backup.jnl in the directory where the java process is currently executing. The REST API supports the following parameters: file : The name of the file. Defaults to backup.jnl in the current working directory. compress : Boolean to compress the backup. It defaults to false. It is true if the parameter is present without a value. Compress does not append a .gz to the backup file name. block : Boolean to block the REST call on creating the snapshot. Defaults to true. curl \ --data-urlencode "file=/path/to/backup.jnl" \ --data-urlencode "compress=true" \ --data-urlencode "block=true" \ http://localhost:9999/blazegraph/backup

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	BLOCK URL parameter to specify that the REST call should block until the backup is completed.
static String	COMPRESS URL parameter to compress the snapshot.
static String	DEFAULT_FILE
static String	FILE URL parameter to specify the backup file.

Fields inherited from class com.bigdata.rdf.sail.webapp.BigdataRDFServlet

ATTR_BLUEPRINTS, MIME_JSON, MIME_RDF_XML, MIME_SPARQL_QUERY, MIME_SPARQL_RESULTS_JSON, MIME_SPARQL_RESULTS_XML, MIME_SPARQL_UPDATE, NA, OUTPUT_FORMAT_JSON, OUTPUT_FORMAT_JSON_SHORT, OUTPUT_FORMAT_QUERY_PARAMETER, OUTPUT_FORMAT_XML, OUTPUT_FORMAT_XML_SHORT, UNDEFINED_WORKBENCH_NAMESPACE, UTF8

Fields inherited from class com.bigdata.rdf.sail.webapp.BigdataServlet

ATTRIBUTE_RDF_CONTEXT, charset, DELETE, GET, HTTP_BADREQUEST, HTTP_HEADER_BIGDATA_READ_ONLY, HTTP_INTERNALERROR, HTTP_METHOD_NOT_ALLOWED, HTTP_NOTFOUND, HTTP_NOTIMPLEMENTED, HTTP_OK, POST, PUT

Fields inherited from interface com.bigdata.rdf.sail.webapp.client.IMimeTypes

MIME_APPLICATION_JSON, MIME_APPLICATION_URL_ENCODED, MIME_APPLICATION_XML, MIME_DEFAULT_BINARY, MIME_GRAPH_ML, MIME_PROPERTIES_XML, MIME_TEXT_HTML, MIME_TEXT_JAVASCRIPT, MIME_TEXT_PLAIN

Constructor Summary

Constructors

Constructor and Description
BackupServlet()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
protected void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
protected void	processRequest(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)

Methods inherited from class com.bigdata.rdf.sail.webapp.BigdataRDFServlet

buildAndCommitBooleanResponse, buildAndCommitNamespaceNotFoundResponse, buildAndCommitRangeCountResponse, getNamespace, getTimestamp, isAttachment, launderThrowable, newPipedInputStream, parseBindings, sendGraph, sendProperties, toURIs

Methods inherited from class com.bigdata.rdf.sail.webapp.BigdataServlet

buildAndCommitResponse, decodeContexts, getBigdataRDFContext, getBooleanValue, getIndexManager, getIndexManager, getServiceURIs, readFully, submitApiTask

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

COMPRESS

public static final String COMPRESS

URL parameter to compress the snapshot. Default value is false. If it is present without a value, it is assumed to be true. It does not append a .gz to the filename.

See Also:

Constant Field Values

FILE

public static final String FILE

URL parameter to specify the backup file. It is optional. If it is not specified, it defaults to "backup.jnl". The file must be writable and must not exist. If the file is passed with a relatively filename, it will be converted to an absolute path.

See Also:

Constant Field Values

DEFAULT_FILE

public static final String DEFAULT_FILE

See Also:

Constant Field Values

BLOCK

public static final String BLOCK

URL parameter to specify that the REST call should block until the backup is completed. The default value is true. If it is set to false, the backup will not be available until the SnapshoTask is completed.

See Also:

Constant Field Values

Constructor Detail

BackupServlet

public BackupServlet()

Method Detail

doPost

protected void doPost(javax.servlet.http.HttpServletRequest req,
          javax.servlet.http.HttpServletResponse res)
               throws IOException

Overrides:

doPost in class javax.servlet.http.HttpServlet

Throws:

IOException

doGet

protected void doGet(javax.servlet.http.HttpServletRequest req,
         javax.servlet.http.HttpServletResponse res)
              throws IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

IOException

processRequest

protected void processRequest(javax.servlet.http.HttpServletRequest req,
                  javax.servlet.http.HttpServletResponse res)
                       throws IOException

Throws:

IOException