package org.pitest.classpath;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import org.pitest.functional.Option;
/*
* Copyright 2010 Henry Coles
*
* Licensed 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.
*/
public class DirectoryClassPathRoot implements ClassPathRoot {
private final File root;
public DirectoryClassPathRoot(final File root) {
this.root = root;
}
@Override
public InputStream getData(final String classname) throws IOException {
final String filename = classname.replace('.', File.separatorChar).concat(
".class");
final File file = new File(this.root, filename);
if (file.canRead()) {
return new FileInputStream(file);
} else {
return null;
}
}
@Override
public URL getResource(final String name) throws MalformedURLException {
final File f = new File(this.root, name);
if (f.canRead()) {
// magically work around encoding issues
return f.toURI().toURL();
} else {
return null;
}
}
@Override
public Collection<String> classNames() {
return classNames(this.root);
}
private Collection<String> classNames(final File file) {
final List<String> classNames = new LinkedList<String>();
for (final File f : file.listFiles()) {
if (f.isDirectory()) {
classNames.addAll(classNames(f));
} else if (f.getName().endsWith(".class")) {
classNames.add(fileToClassName(f));
}
}
return classNames;
}
private String fileToClassName(final File f) {
return f
.getAbsolutePath()
.substring(this.root.getAbsolutePath().length() + 1,
(f.getAbsolutePath().length() - ".class".length()))
.replace(File.separatorChar, '.');
}
@Override
public Option<String> cacheLocation() {
return Option.some(this.root.getAbsolutePath());
}
}