| /** |
| * 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.xbean.classloader; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.Reader; |
| import java.io.Writer; |
| import java.util.jar.JarFile; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public final class IoUtil { |
| private IoUtil() { |
| } |
| |
| public static byte[] getBytes(InputStream inputStream) throws IOException { |
| try { |
| byte[] buffer = new byte[4096]; |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| for (int count = inputStream.read(buffer); count >= 0; count = inputStream.read(buffer)) { |
| out.write(buffer, 0, count); |
| } |
| byte[] bytes = out.toByteArray(); |
| return bytes; |
| } finally { |
| close(inputStream); |
| } |
| } |
| |
| public static void flush(OutputStream thing) { |
| if (thing != null) { |
| try { |
| thing.flush(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static void flush(Writer thing) { |
| if (thing != null) { |
| try { |
| thing.flush(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static void close(JarFile thing) { |
| if (thing != null) { |
| try { |
| thing.close(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static void close(InputStream thing) { |
| if (thing != null) { |
| try { |
| thing.close(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static void close(OutputStream thing) { |
| if (thing != null) { |
| try { |
| thing.close(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static void close(Reader thing) { |
| if (thing != null) { |
| try { |
| thing.close(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static void close(Writer thing) { |
| if (thing != null) { |
| try { |
| thing.close(); |
| } catch(Exception ignored) { |
| } |
| } |
| } |
| |
| public static final class EmptyInputStream extends InputStream { |
| public int read() { |
| return -1; |
| } |
| |
| public int read(byte b[]) { |
| return -1; |
| } |
| |
| public int read(byte b[], int off, int len) { |
| return -1; |
| } |
| |
| public long skip(long n) { |
| return 0; |
| } |
| |
| public int available() { |
| return 0; |
| } |
| |
| public void close() { |
| } |
| |
| public synchronized void mark(int readlimit) { |
| } |
| |
| public synchronized void reset() { |
| } |
| |
| public boolean markSupported() { |
| return false; |
| } |
| } |
| } |