| /* |
| * Copyright 1999,2004-2006 The Apache Software Foundation. |
| * |
| * Licensed 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.catalina.tribes.tipis; |
| |
| import java.io.IOException; |
| |
| /** |
| * Example usage: |
| * <code><pre> |
| * byte[] data = new byte[1024]; |
| * Streamable st = ....; |
| * while ( !st.eof() ) { |
| * int length = st.read(data,0,data.length); |
| * String s = new String(data,0,length); |
| * System.out.println(s); |
| * } |
| * </pre></code> |
| * @author Filip Hanik |
| * @version 1.0 |
| */ |
| public interface Streamable { |
| |
| /** |
| * returns true if the stream has reached its end |
| * @return boolean |
| */ |
| public boolean eof(); |
| |
| /** |
| * write data into the byte array starting at offset, maximum bytes read are (data.length-offset) |
| * @param data byte[] - the array to read data into |
| * @param offset int - start position for writing data |
| * @return int - the number of bytes written into the data buffer |
| */ |
| public int write(byte[] data, int offset, int length) throws IOException; |
| |
| /** |
| * read data into the byte array starting at offset |
| * @param data byte[] - the array to read data into |
| * @param offset int - start position for writing data |
| * @param length - the desired read length |
| * @return int - the number of bytes read from the data buffer |
| */ |
| public int read(byte[] data, int offset, int length) throws IOException; |
| |
| |
| } |