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UnpackedResources.java
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UnpackedResources.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cypher;
import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.PathMatcher;
import java.nio.file.StandardCopyOption;
import java.util.Collections;
import java.util.Iterator;
import org.junit.experimental.runners.Enclosed;
import org.junit.runners.model.RunnerBuilder;
import org.opencypher.tools.tck.TCKCucumberTemplate;
public class UnpackedResources extends Enclosed
{
public UnpackedResources( Class<?> klass, RunnerBuilder builder ) throws Throwable
{
super( klass, download( builder ) );
}
private static RunnerBuilder download( RunnerBuilder builder )
{
unpackResources();
return builder;
}
private static void unpackResources()
{
File featuresDirectory = createTargetDirectory( "features" );
File graphsDirectory = createTargetDirectory( "graphs" );
URI uri;
try
{
uri = TCKCucumberTemplate.class.getResource( "" ).toURI();
}
catch ( URISyntaxException e )
{
throw new IllegalStateException( "Failed to find resources for TCK feature files in JAR!", e );
}
try ( FileSystem fileSystem = FileSystems.newFileSystem( uri, Collections.emptyMap() ) )
{
findAndUnpackTo( fileSystem, "glob:**/*.feature", featuresDirectory );
findAndUnpackTo( fileSystem, "glob:**/*.cypher", graphsDirectory );
findAndUnpackTo( fileSystem, "glob:**/*.json", graphsDirectory );
}
catch ( IOException e )
{
throw new IllegalStateException( "Unexpected error while unpacking Cypher TCK feature files", e );
}
}
private static void findAndUnpackTo( FileSystem sourceFileSystem, String sourcePattern, File targetDirectory ) throws IOException
{
System.out.println( "Unpacking to " + targetDirectory.getCanonicalPath() );
PathMatcher matcher = sourceFileSystem.getPathMatcher(sourcePattern);
for (Iterator<Path> it = Files.walk( sourceFileSystem.getPath( "/" ), 2 ).iterator(); it.hasNext(); )
{
Path next = it.next();
if ( matcher.matches( next ) )
{
File target = new File( targetDirectory, next.getFileName().toString() );
Files.copy( next, target.toPath()
// , StandardCopyOption.REPLACE_EXISTING
);
System.out.println( "Unpacked " + target.getName() );
}
}
}
private static File createTargetDirectory( String suffix )
{
return obtainTargetDirectory( true, suffix );
}
public static File targetDirectory( String suffix )
{
return obtainTargetDirectory( false, suffix );
}
private static File obtainTargetDirectory( boolean create, String suffix )
{
File directory = new File( new File( "target" ), suffix ).getAbsoluteFile();
if ( !directory.exists() )
{
if ( !(create && directory.mkdirs()) )
{
throw new IllegalStateException(
"Failed to create target directory for cypher feature files: " + directory );
}
}
return directory;
}
}