01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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:
18: package org.apache.harmony.x.imageio.spi;
19:
20: import javax.imageio.spi.ImageInputStreamSpi;
21: import javax.imageio.stream.*;
22: import java.io.OutputStream;
23: import java.io.File;
24: import java.io.IOException;
25: import java.io.InputStream;
26: import java.util.Locale;
27:
28: public class InputStreamIISSpi extends ImageInputStreamSpi {
29: private static final String vendor = "Apache";
30:
31: private static final String ver = "0.1";
32:
33: public InputStreamIISSpi() {
34: super (vendor, ver, InputStream.class);
35: }
36:
37: @Override
38: public String getDescription(Locale locale) {
39: return "Output Stream IOS Spi";
40: }
41:
42: @Override
43: public boolean canUseCacheFile() {
44: return true;
45: }
46:
47: @Override
48: public ImageInputStream createInputStreamInstance(Object input,
49: boolean useCache, File cacheDir) throws IOException {
50: if (input instanceof InputStream) {
51: if (useCache) {
52: return new FileCacheImageInputStream(
53: (InputStream) input, cacheDir);
54: } else {
55: return new MemoryCacheImageInputStream(
56: (InputStream) input);
57: }
58: }
59: throw new IllegalArgumentException(
60: "Output is not an instance of InputStream");
61: }
62: }
|