org.sonar.java.bytecode.loader.FileSystemLoader Maven / Gradle / Ivy
/*
* SonarQube Java
* Copyright (C) 2012 SonarSource
* [email protected]
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
*/
package org.sonar.java.bytecode.loader;
import org.apache.commons.io.IOUtils;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
class FileSystemLoader implements Loader {
private File baseDir;
public FileSystemLoader(File baseDir) {
if (baseDir == null) {
throw new IllegalArgumentException("baseDir can't be null");
}
this.baseDir = baseDir;
}
@Override
public URL findResource(String name) {
if (baseDir == null) {
throw new IllegalStateException("Loader closed");
}
File file = new File(baseDir, name);
if (file.exists() && file.isFile()) {
try {
return file.toURI().toURL();
} catch (MalformedURLException e) {
return null;
}
}
return null;
}
@Override
public byte[] loadBytes(String name) {
if (baseDir == null) {
throw new IllegalStateException("Loader closed");
}
File file = new File(baseDir, name);
if (!file.exists()) {
return new byte[0];
}
InputStream is = null;
try {
is = new FileInputStream(file);
return IOUtils.toByteArray(is);
} catch (IOException e) {
return new byte[0];
} finally {
IOUtils.closeQuietly(is);
}
}
@Override
public void close() {
baseDir = null;
}
}