| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| package org.apache.openejb.tools.legal; |
| |
| import java.io.BufferedInputStream; |
| import java.io.BufferedOutputStream; |
| import java.io.BufferedReader; |
| import java.io.BufferedWriter; |
| import java.io.ByteArrayOutputStream; |
| import java.io.Closeable; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.FileReader; |
| import java.io.FileWriter; |
| import java.io.Flushable; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.net.URL; |
| import java.util.zip.ZipInputStream; |
| import java.util.zip.ZipOutputStream; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class IOUtil { |
| |
| private static final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(IOUtil.class); |
| |
| public static String readString(URL url) throws IOException { |
| final InputStream in = url.openStream(); |
| try { |
| BufferedReader reader = new BufferedReader(new InputStreamReader(in)); |
| return reader.readLine(); |
| } finally { |
| close(in); |
| } |
| } |
| |
| public static String readString(File file) throws IOException { |
| final FileReader in = new FileReader(file); |
| try { |
| BufferedReader reader = new BufferedReader(in); |
| return reader.readLine(); |
| } finally { |
| close(in); |
| } |
| } |
| |
| public static String slurp(File file) throws IOException { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| copy(file, out); |
| return new String(out.toByteArray()); |
| } |
| |
| public static String slurp(URL url) throws IOException { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| copy(url.openStream(), out); |
| return new String(out.toByteArray()); |
| } |
| |
| public static void writeString(File file, String string) throws IOException { |
| final FileWriter out = new FileWriter(file); |
| try { |
| final BufferedWriter bufferedWriter = new BufferedWriter(out); |
| try { |
| bufferedWriter.write(string); |
| bufferedWriter.newLine(); |
| } finally { |
| close(bufferedWriter); |
| } |
| } finally { |
| close(out); |
| } |
| } |
| |
| public static void copy(File from, OutputStream to) throws IOException { |
| final InputStream read = read(from); |
| try { |
| copy(read, to); |
| } finally { |
| close(read); |
| } |
| } |
| |
| public static void copy(InputStream from, File to) throws IOException { |
| final OutputStream write = write(to); |
| try { |
| copy(from, write); |
| } finally { |
| close(write); |
| } |
| } |
| |
| public static void copy(InputStream from, File to, boolean append) throws IOException { |
| final OutputStream write = write(to, append); |
| try { |
| copy(from, write); |
| } finally { |
| close(write); |
| } |
| } |
| |
| public static void copy(InputStream from, OutputStream to) throws IOException { |
| byte[] buffer = new byte[1024]; |
| int length = 0; |
| while ((length = from.read(buffer)) != -1) { |
| to.write(buffer, 0, length); |
| } |
| to.flush(); |
| } |
| |
| public static ZipOutputStream zip(File file) throws IOException { |
| final OutputStream write = write(file); |
| return new ZipOutputStream(write); |
| } |
| |
| public static ZipInputStream unzip(File file) throws IOException { |
| final InputStream read = read(file); |
| return new ZipInputStream(read); |
| } |
| |
| public static void close(Closeable closeable) throws IOException { |
| if (closeable == null) return; |
| try { |
| if (closeable instanceof Flushable) { |
| ((Flushable) closeable).flush(); |
| } |
| } catch (IOException e) { |
| } |
| try { |
| closeable.close(); |
| } catch (IOException e) { |
| } |
| } |
| |
| public static boolean delete(File file) { |
| if (file == null) return false; |
| if (!file.delete()) { |
| log.error("Delete failed " + file.getAbsolutePath()); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public static OutputStream write(File destination) throws FileNotFoundException { |
| final OutputStream out = new FileOutputStream(destination); |
| return new BufferedOutputStream(out, 32768); |
| } |
| |
| public static OutputStream write(File destination, boolean append) throws FileNotFoundException { |
| final OutputStream out = new FileOutputStream(destination, append); |
| return new BufferedOutputStream(out, 32768); |
| } |
| |
| public static InputStream read(File source) throws FileNotFoundException { |
| final InputStream in = new FileInputStream(source); |
| return new BufferedInputStream(in, 32768); |
| } |
| } |