/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.hp.hpl.jena.sparql.modify;
import org.apache.jena.atlas.web.auth.HttpAuthenticator;
import org.apache.jena.riot.WebContent ;
import org.apache.jena.riot.web.HttpOp ;
import com.hp.hpl.jena.sparql.ARQException ;
import com.hp.hpl.jena.sparql.util.Context ;
import com.hp.hpl.jena.update.UpdateProcessor ;
import com.hp.hpl.jena.update.UpdateRequest ;
/**
* UpdateProcess that send the request to a SPARQL endpoint by using POST of application/sparql-update.
*/
public class UpdateProcessRemote extends UpdateProcessRemoteBase implements UpdateProcessor
{
/**
* Creates a new remote update processor that uses the application/sparql-update submission method
* @param request Update request
* @param endpoint Update endpoint
* @param context Context
*/
public UpdateProcessRemote(UpdateRequest request, String endpoint, Context context )
{
super(request, endpoint, context);
}
/**
* Creates a new remote update processor that uses the application/sparql-update submission method
* @param request Update request
* @param endpoint Update endpoint
* @param context Context
* @param authenticator HTTP Authenticator
*/
public UpdateProcessRemote(UpdateRequest request, String endpoint, Context context, HttpAuthenticator authenticator)
{
this(request, endpoint, context);
// Don't want to overwrite credentials we may have picked up from
// service context in the parent constructor if the specified
// authenticator is null
if (authenticator != null)
this.setAuthenticator(authenticator);
}
@Override
public void execute()
{
// Validation
if ( this.getEndpoint() == null )
throw new ARQException("Null endpoint for remote update") ;
if ( this.getUpdateRequest() == null )
throw new ARQException("Null update request for remote update") ;
// Build endpoint URL
String endpoint = this.getEndpoint();
String querystring = this.getQueryString();
if (querystring != null && !querystring.equals("")) {
endpoint = endpoint.contains("?") ? endpoint + "&" + querystring : endpoint + "?" + querystring;
}
// Execution
String reqStr = this.getUpdateRequest().toString() ;
HttpOp.execHttpPost(endpoint, WebContent.contentTypeSPARQLUpdate, reqStr, null, getHttpContext(), getAuthenticator()) ;
}
}