/*
* 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 java.util.HashMap ;
import java.util.Map ;
import org.apache.jena.riot.web.HttpOp ;
import org.apache.jena.riot.web.HttpResponseHandler ;
import org.apache.jena.riot.web.HttpResponseLib ;
import com.hp.hpl.jena.sparql.ARQException ;
import com.hp.hpl.jena.sparql.engine.http.HttpParams;
import com.hp.hpl.jena.sparql.engine.http.Params;
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 an HTML form and POST
* Use of application/sparql-update via @link{UpdateProcessRemote} is preferred.
*/
public class UpdateProcessRemoteForm extends UpdateProcessRemoteBase implements UpdateProcessor
{
/**
* Creates a new remote update processor that uses the form URL encoded submission method
* @param request Update request
* @param endpoint Update endpoint
* @param context Context
*/
public UpdateProcessRemoteForm(UpdateRequest request , String endpoint, Context context )
{
super(request, endpoint, context);
}
@Override
public void execute()
{
// Validation
if ( this.getEndpoint() == null )
throw new ARQException("Null endpoint for remote update by form") ;
if ( this.getUpdateRequest() == null )
throw new ARQException("Null update request for remote update") ;
// Execution
String reqStr = this.getUpdateRequest().toString() ;
Params ps = new Params(this.getParams());
ps.addParam(HttpParams.pUpdate, reqStr);
Map<String, HttpResponseHandler> handlers = new HashMap<String, HttpResponseHandler>() ;
handlers.put("*", HttpResponseLib.nullResponse) ;
HttpOp.execHttpPostForm(this.getEndpoint(), ps, handlers, getHttpContext()) ;
}
}