+++ /dev/null
-package be.nikiroo.utils;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipOutputStream;
-
-/**
- * This class offer some utilities based around Streams.
- *
- * @author niki
- */
-public class IOUtils {
- /**
- * Write the data to the given {@link File}.
- *
- * @param in
- * the data source
- * @param target
- * the target {@link File}
- *
- * @throws IOException
- * in case of I/O error
- */
- public static void write(InputStream in, File target) throws IOException {
- OutputStream out = new FileOutputStream(target);
- try {
- write(in, out);
- } finally {
- out.close();
- }
- }
-
- /**
- * Write the data to the given {@link OutputStream}.
- *
- * @param in
- * the data source
- * @param out
- * the target {@link OutputStream}
- *
- * @throws IOException
- * in case of I/O error
- */
- public static void write(InputStream in, OutputStream out)
- throws IOException {
- byte buffer[] = new byte[4069];
- for (int len = 0; (len = in.read(buffer)) > 0;) {
- out.write(buffer, 0, len);
- }
- }
-
- /**
- * Recursively Add a {@link File} (which can thus be a directory, too) to a
- * {@link ZipOutputStream}.
- *
- * @param zip
- * the stream
- * @param base
- * the path to prepend to the ZIP info before the actual
- * {@link File} path
- * @param target
- * the source {@link File} (which can be a directory)
- * @param targetIsRoot
- * FALSE if we need to add a {@link ZipEntry} for base/target,
- * TRUE to add it at the root of the ZIP
- *
- * @throws IOException
- * in case of I/O error
- */
- public static void zip(ZipOutputStream zip, String base, File target,
- boolean targetIsRoot) throws IOException {
- if (target.isDirectory()) {
- if (!targetIsRoot) {
- if (base == null || base.isEmpty()) {
- base = target.getName();
- } else {
- base += "/" + target.getName();
- }
- zip.putNextEntry(new ZipEntry(base + "/"));
- }
- for (File file : target.listFiles()) {
- zip(zip, base, file, false);
- }
- } else {
- if (base == null || base.isEmpty()) {
- base = target.getName();
- } else {
- base += "/" + target.getName();
- }
- zip.putNextEntry(new ZipEntry(base));
- FileInputStream in = new FileInputStream(target);
- try {
- IOUtils.write(in, zip);
- } finally {
- in.close();
- }
- }
- }
-
- /**
- * Zip the given source into dest.
- *
- * @param src
- * the source {@link File} (which can be a directory)
- * @param dest
- * the destination <tt>.zip</tt> file
- * @param srcIsRoot
- * FALSE if we need to add a {@link ZipEntry} for src, TRUE to
- * add it at the root of the ZIP
- *
- * @throws IOException
- * in case of I/O error
- */
- public static void zip(File src, File dest, boolean srcIsRoot)
- throws IOException {
- OutputStream out = new FileOutputStream(dest);
- try {
- ZipOutputStream zip = new ZipOutputStream(out);
- try {
- IOUtils.zip(zip, "", src, srcIsRoot);
- } finally {
- zip.close();
- }
- } finally {
- out.close();
- }
- }
-
- /**
- * Write the {@link String} content to {@link File}.
- *
- * @param dir
- * the directory where to write the {@link File}
- * @param filename
- * the {@link File} name
- * @param content
- * the content
- *
- * @throws IOException
- * in case of I/O error
- */
- public static void writeSmallFile(File dir, String filename, String content)
- throws IOException {
- if (!dir.exists()) {
- dir.mkdirs();
- }
-
- FileWriter writerVersion = new FileWriter(new File(dir, filename));
- try {
- writerVersion.write(content);
- } finally {
- writerVersion.close();
- }
- }
-
- /**
- * Read the whole {@link File} content into a {@link String}.
- *
- * @param file
- * the {@link File}
- *
- * @return the content
- *
- * @throws IOException
- * in case of I/O error
- */
- public static String readSmallFile(File file) throws IOException {
- InputStream stream = new FileInputStream(file);
- try {
- return readSmallStream(stream);
- } finally {
- stream.close();
- }
- }
-
- /**
- * Read the whole {@link InputStream} content into a {@link String}.
- *
- * @param stream
- * the {@link InputStream}
- *
- * @return the content
- *
- * @throws IOException
- * in case of I/O error
- */
- public static String readSmallStream(InputStream stream) throws IOException {
- BufferedReader reader = new BufferedReader(
- new InputStreamReader(stream));
- try {
- StringBuilder builder = new StringBuilder();
- for (String line = reader.readLine(); line != null; line = reader
- .readLine()) {
- builder.append(line);
- builder.append("\n");
- }
- return builder.toString();
- } finally {
- reader.close();
- }
- }
-
- /**
- * Recursively delete the given {@link File}, which may of course also be a
- * directory.
- * <p>
- * Will silently continue in case of error.
- *
- * @param target
- * the target to delete
- */
- public static void deltree(File target) {
- File[] files = target.listFiles();
- if (files != null) {
- for (File file : files) {
- deltree(file);
- }
- }
-
- if (!target.delete()) {
- System.err.println("Cannot delete: " + target.getAbsolutePath());
- }
- }
-
- /**
- * Open the given /-separated resource (from the binary root).
- *
- * @param name
- * the resource name
- *
- * @return the opened resource if found, NLL if not
- */
- public static InputStream openResource(String name) {
- ClassLoader loader = IOUtils.class.getClassLoader();
- if (loader == null) {
- loader = ClassLoader.getSystemClassLoader();
- }
-
- return loader.getResourceAsStream(name);
- }
-}
git://git.nikiroo.be / fanfix.git / blobdiff