1/* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package org.apache.harmony.luni.internal.net.www.protocol.ftp; 19 20import java.io.IOException; 21import java.io.InputStream; 22import java.net.Socket; 23 24/** 25 * This class associates a given inputStream with a control socket. This ensures 26 * the control socket Object stays live while the stream is in use 27 */ 28class FtpURLInputStream extends InputStream { 29 30 private InputStream is; // Actual input stream 31 32 private Socket controlSocket; 33 34 public FtpURLInputStream(InputStream is, Socket controlSocket) { 35 this.is = is; 36 this.controlSocket = controlSocket; 37 } 38 39 @Override 40 public int read() throws IOException { 41 return is.read(); 42 } 43 44 @Override 45 public int read(byte[] buf, int off, int nbytes) throws IOException { 46 return is.read(buf, off, nbytes); 47 } 48 49 @Override 50 public synchronized void reset() throws IOException { 51 is.reset(); 52 } 53 54 @Override 55 public synchronized void mark(int limit) { 56 is.mark(limit); 57 } 58 59 @Override 60 public boolean markSupported() { 61 return is.markSupported(); 62 } 63 64 @Override 65 public void close() { 66 try { 67 is.close(); 68 } catch (Exception e) { 69 // ignored 70 } 71 try { 72 controlSocket.close(); 73 } catch (Exception e) { 74 // ignored 75 } 76 } 77 78 @Override 79 public int available() throws IOException { 80 return is.available(); 81 } 82 83 @Override 84 public long skip(long sbytes) throws IOException { 85 return is.skip(sbytes); 86 } 87 88} 89