1/* 2 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package com.sun.imageio.spi; 27 28import java.io.File; 29import java.io.IOException; 30import java.io.OutputStream; 31import java.util.Locale; 32import javax.imageio.spi.ImageOutputStreamSpi; 33import javax.imageio.stream.ImageOutputStream; 34import javax.imageio.stream.FileCacheImageOutputStream; 35import javax.imageio.stream.MemoryCacheImageOutputStream; 36 37public class OutputStreamImageOutputStreamSpi extends ImageOutputStreamSpi { 38 39 private static final String vendorName = "Oracle Corporation"; 40 41 private static final String version = "1.0"; 42 43 private static final Class<?> outputClass = OutputStream.class; 44 45 public OutputStreamImageOutputStreamSpi() { 46 super(vendorName, version, outputClass); 47 } 48 49 public String getDescription(Locale locale) { 50 return "Service provider that instantiates an OutputStreamImageOutputStream from an OutputStream"; 51 } 52 53 public boolean canUseCacheFile() { 54 return true; 55 } 56 57 public boolean needsCacheFile() { 58 return false; 59 } 60 61 public ImageOutputStream createOutputStreamInstance(Object output, 62 boolean useCache, 63 File cacheDir) 64 throws IOException { 65 if (output instanceof OutputStream) { 66 OutputStream os = (OutputStream)output; 67 if (useCache) { 68 return new FileCacheImageOutputStream(os, cacheDir); 69 } else { 70 return new MemoryCacheImageOutputStream(os); 71 } 72 } else { 73 throw new IllegalArgumentException(); 74 } 75 } 76} 77