/*
 * 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.rdf.model.test;

import java.util.Arrays;
import java.util.List;

import org.apache.jena.rdf.model.Model ;
import org.apache.jena.rdf.model.Statement ;
import org.apache.jena.rdf.model.test.helpers.ModelHelper ;
import org.apache.jena.rdf.model.test.helpers.TestingModelFactory ;
import org.apache.jena.shared.PrefixMapping ;
import org.junit.Assert;

/**
 * Tests of the Model-level bulk update API.
 */

public class TestModelBulkUpdate extends AbstractModelTestBase
{
	public TestModelBulkUpdate( final TestingModelFactory modelFactory,
			final String name )
	{
		super(modelFactory, name);
	}

	public void addReification( final Model m, final String tag,
			final String statement )
	{
		m.createReifiedStatement(tag, ModelHelper.statement(m, statement));
	}

	public void testBulkByModel()
	{
		Assert.assertEquals("precondition: model must be empty", 0,
				model.size());
		final Model A = ModelHelper.modelWithStatements(this,
				"clouds offer rain; trees offer shelter");
		final Model B = ModelHelper.modelWithStatements(this,
				"x R y; y Q z; z P x");
		model.add(A);
		ModelHelper.assertIsoModels(A, model);
		model.add(B);
		model.remove(A);
		ModelHelper.assertIsoModels(B, model);
		model.remove(B);
		Assert.assertEquals("", 0, model.size());
	}

	public void testBulkByModelReifying()
	{
		final Model m = ModelHelper.modelWithStatements(this, "a P b");
		addReification(m, "x", "S P O");
		addReification(m, "a", "x R y");
		final Model target = ModelHelper.modelWithStatements(this, "");
		target.add(m);
		target.setNsPrefixes(PrefixMapping.Standard);
		ModelHelper.assertIsoModels(m, target);
	}

	public void testBulkDeleteByModelReifying()
	{

		final Model target = ModelHelper.modelWithStatements(this, "");
		addReification(target, "x", "S P O");
		addReification(target, "y", "A P B");
		final Model remove = ModelHelper.modelWithStatements(this, "");
		addReification(remove, "y", "A P B");
		final Model answer = ModelHelper.modelWithStatements(this, "");
		addReification(answer, "x", "S P O");
		target.remove(remove);
		ModelHelper.assertIsoModels(answer, target);
	}

	public void testBulkRemoveSelf()
	{
		final Model m = ModelHelper.modelWithStatements(this,
				"they sing together; he sings alone");
		m.remove(m);
		Assert.assertEquals("", 0, m.size());
	}

	public void testContains( final Model m, final List<Statement> statements )
	{
        for ( Statement statement : statements )
        {
            Assert.assertTrue( "it should be here", m.contains( statement ) );
        }
	}

	public void testContains( final Model m, final Statement[] statements )
	{
		for (final Statement statement : statements)
		{
			Assert.assertTrue("it should be here", m.contains(statement));
		}
	}

	public void testMBU()
	{
		final Statement[] sArray = ModelHelper.statements(model,
				"moon orbits earth; earth orbits sun");
		final List<Statement> sList = Arrays.asList(ModelHelper.statements(
				model, "I drink tea; you drink coffee"));
		model.add(sArray);
		testContains(model, sArray);
		model.add(sList);
		testContains(model, sList);
		testContains(model, sArray);
		/* */
		model.remove(sArray);
		testOmits(model, sArray);
		testContains(model, sList);
		model.remove(sList);
		testOmits(model, sArray);
		testOmits(model, sList);
	}

	public void testOmits( final Model m, final List<Statement> statements )
	{
        for ( Statement statement : statements )
        {
            Assert.assertFalse( "it should not be here", m.contains( statement ) );
        }
	}

	public void testOmits( final Model m, final Statement[] statements )
	{
		for (final Statement statement : statements)
		{
			Assert.assertFalse("it should not be here", m.contains(statement));
		}
	}
}