DirectorySourceFileLocator.java
/*******************************************************************************
* Copyright (c) 2009, 2011 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
/**
* Locator for source files that picks source files from a given directory in
* the file system.
*/
public class DirectorySourceFileLocator implements ISourceFileLocator {
private final File directory;
private final String encoding;
private final int tabWidth;
/**
* Creates a new locator that searches for source files in the given
* directory.
*
* @param directory
* directory to search for source file
* @param encoding
* encoding of the source files
* @param tabWidth
* tab width in source files as number of blanks
*
*/
public DirectorySourceFileLocator(final File directory,
final String encoding, final int tabWidth) {
this.directory = directory;
this.encoding = encoding;
this.tabWidth = tabWidth;
}
public Reader getSourceFile(final String packageName, final String fileName)
throws IOException {
final File dir = new File(directory, packageName);
final File file = new File(dir, fileName);
if (file.exists()) {
return new InputStreamReader(new FileInputStream(file), encoding);
}
return null;
}
public int getTabWidth() {
return tabWidth;
}
}