/*
* Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package ae.com.sun.imageio.spi;
import java.io.File;
import java.io.InputStream;
import java.io.IOException;
import java.util.Locale;
import ae.javax.imageio.spi.ImageInputStreamSpi;
import ae.javax.imageio.stream.ImageInputStream;
import ae.javax.imageio.stream.FileCacheImageInputStream;
import ae.javax.imageio.stream.MemoryCacheImageInputStream;
public class InputStreamImageInputStreamSpi extends ImageInputStreamSpi {
private static final String vendorName = "Sun Microsystems, Inc.";
private static final String version = "1.0";
private static final Class inputClass = InputStream.class;
public InputStreamImageInputStreamSpi() {
super(vendorName, version, inputClass);
}
public String getDescription(Locale locale) {
return "Service provider that instantiates a FileCacheImageInputStream or MemoryCacheImageInputStream from an InputStream";
}
public boolean canUseCacheFile() {
return true;
}
public boolean needsCacheFile() {
return false;
}
public ImageInputStream createInputStreamInstance(Object input,
boolean useCache,
File cacheDir)
throws IOException {
if (input instanceof InputStream) {
InputStream is = (InputStream)input;
if (useCache) {
return new FileCacheImageInputStream(is, cacheDir);
} else {
return new MemoryCacheImageInputStream(is);
}
} else {
throw new IllegalArgumentException();
}
}
}