/*
* 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 org.apache.jena.assembler.exceptions;
import java.util.*;
import org.apache.jena.assembler.assemblers.AssemblerGroup ;
import org.apache.jena.assembler.assemblers.AssemblerGroup.Frame ;
import org.apache.jena.rdf.model.* ;
import org.apache.jena.shared.JenaException ;
import org.apache.jena.vocabulary.RDFS ;
/**
Assembler Exception class: contains code shared by all the Assembler
exceptions.
*/
public class AssemblerException extends JenaException
{
protected final Resource root;
protected List<Frame> doing = new ArrayList<>();
public AssemblerException( Resource root, String string, Throwable t )
{
super( string, t );
this.root = root;
}
public AssemblerException( Resource root, String message )
{
super( message );
this.root = root;
}
/**
Answer the root object whose model-filling was aborted
*/
public Resource getRoot()
{ return root; }
/**
XXX
*/
public AssemblerException pushDoing( AssemblerGroup.Frame frame )
{ doing.add( frame ); return this; }
/**
Answer a "nice" representation of <code>r</code>, suitable for appearance
within an exception message.
*/
protected static String nice( Resource r )
{
String rString = r.asNode().toString( r.getModel() );
return r.isAnon() ? rString + getLabels( r ) : rString;
}
private static String getLabels( Resource r )
{
Model m = r.getModel();
String labels = "", prefix = "labels: ";
for (StmtIterator it = r.listProperties( RDFS.label ); it.hasNext();)
{
String label = it.nextStatement().getObject().asNode().toString( m, true );
labels += prefix + label;
prefix = ", ";
}
return labels.equals( "" ) ? getIncomingProperty( r ) : " [" + labels + "]";
}
private static String getIncomingProperty( Resource r )
{
String incomings = "", prefix = "";
StmtIterator it = r.getModel().listStatements( null, null, r );
while (it.hasNext())
{
Statement s = it.nextStatement();
incomings += prefix + nice( s.getPredicate() ) + " of " + nice( s.getSubject() );
prefix = ", ";
}
return incomings.equals( "" ) ? "" : " [" + incomings + "]";
}
protected static String nice( RDFNode r )
{ return r.isLiteral() ? r.asNode().toString(): nice( (Resource) r ); }
public List<Frame> getDoing()
{ return doing; }
@Override
public String toString()
{
String parent = super.toString();
String frame = frameStrings();
return frame.equals( "" ) ? parent : parent + "\n doing:\n" + frame;
}
protected String frameStrings()
{
StringBuilder result = new StringBuilder();
for ( Frame aDoing : doing )
{
result.append( " " ).append( aDoing.toString() ).append( "\n" );
}
return result.toString();
}
}