diff options
Diffstat (limited to 'common/src/at/gv/egovernment/moa/util/FileUtils.java')
-rw-r--r-- | common/src/at/gv/egovernment/moa/util/FileUtils.java | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/common/src/at/gv/egovernment/moa/util/FileUtils.java b/common/src/at/gv/egovernment/moa/util/FileUtils.java new file mode 100644 index 000000000..f8941568d --- /dev/null +++ b/common/src/at/gv/egovernment/moa/util/FileUtils.java @@ -0,0 +1,87 @@ +package at.gv.egovernment.moa.util; + +import java.io.BufferedInputStream; +import java.io.FileInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.net.URL; + +/** + * Utility for accessing files on the file system, and for reading from input streams. + * @author Paul Ivancsics + * @version $Id$ + */ +public class FileUtils { + + /** + * Reads a file, given by URL, into a byte array. + * @param urlString file URL + * @return file content + * @throws IOException on any exception thrown + */ + public static byte[] readURL(String urlString) throws IOException { + URL url = new URL(urlString); + InputStream in = new BufferedInputStream(url.openStream()); + byte[] content = StreamUtils.readStream(in); + in.close(); + return content; + } + /** + * Reads a file, given by URL, into a String. + * @param urlString file URL + * @param encoding character encoding + * @return file content + * @throws IOException on any exception thrown + */ + public static String readURL(String urlString, String encoding) throws IOException { + byte[] content = readURL(urlString); + return new String(content, encoding); + } + /** + * Reads a file, given by filename, into a byte array. + * @param filename filename + * @return file content + * @throws IOException on any exception thrown + */ + public static byte[] readFile(String filename) throws IOException { + BufferedInputStream in = new BufferedInputStream(new FileInputStream(filename)); + byte[] content = StreamUtils.readStream(in); + in.close(); + return content; + } + /** + * Reads a file, given by filename, into a String. + * @param filename filename + * @param encoding character encoding + * @return file content + * @throws IOException on any exception thrown + */ + public static String readFile(String filename, String encoding) throws IOException { + byte[] content = readFile(filename); + return new String(content, encoding); + } + /** + * Reads a file from a resource. + * @param name resource name + * @return file content as a byte array + * @throws IOException on any exception thrown + */ + public static byte[] readResource(String name) throws IOException { + ClassLoader cl = FileUtils.class.getClassLoader(); + BufferedInputStream in = new BufferedInputStream(cl.getResourceAsStream(name)); + byte[] content = StreamUtils.readStream(in); + in.close(); + return content; + } + /** + * Reads a file from a resource. + * @param name filename + * @param encoding character encoding + * @return file content + * @throws IOException on any exception thrown + */ + public static String readResource(String name, String encoding) throws IOException { + byte[] content = readResource(name); + return new String(content, encoding); + } +} |