From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../javax/imageio/spi/ImageInputStreamSpi.java | 144 +++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 libjava/classpath/javax/imageio/spi/ImageInputStreamSpi.java (limited to 'libjava/classpath/javax/imageio/spi/ImageInputStreamSpi.java') diff --git a/libjava/classpath/javax/imageio/spi/ImageInputStreamSpi.java b/libjava/classpath/javax/imageio/spi/ImageInputStreamSpi.java new file mode 100644 index 000000000..2b60868a5 --- /dev/null +++ b/libjava/classpath/javax/imageio/spi/ImageInputStreamSpi.java @@ -0,0 +1,144 @@ +/* ImageInputStreamSpi.java -- Service provider for image input streams. + Copyright (C) 2004, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.imageio.spi; + +import java.io.File; +import java.io.IOException; + +import javax.imageio.stream.ImageInputStream; + +/** + * An abstract superclass for service providers that create + * {@linkplain javax.imageio.stream.ImageInputStream image input + * streams} for a file, URL, byte array or any other source. + * + * @since 1.4 + * + * @author Sascha Brawer (brawer@dandelis.ch) + */ +public abstract class ImageInputStreamSpi + extends IIOServiceProvider +{ + /** + * Indicates which kind of input is processable by the streams + * created by {@link #createInputStreamInstance(Object)}. + */ + protected Class inputClass; + + + /** + * Constructs a service provider for image input streams, given no + * parameters. It is up to the sub-class to set {@link #vendorName}, + * {@link #version} and {@link #inputClass} to non-null values. + */ + protected ImageInputStreamSpi() + { + } + + + /** + * Constructs a service provider for image input streams, given the + * vendor name and a version string. + * + * @throws IllegalArgumentException if vendorName + * or version is null. + */ + public ImageInputStreamSpi(String vendorName, String version, + Class inputClass) + { + super(vendorName, version); + this.inputClass = inputClass; + } + + + /** + * Determines which kind of input is processable by the streams + * created by {@link #createInputStreamInstance(Object)}. + */ + public Class getInputClass() + { + return inputClass; + } + + + /** + * Determines whether ImageInputStreams created + * by this service provider benefit from using a cache file. + * + *

The default behavior is to return false. + * + * @return true if the created streams are faster or + * need less memory when a cache file is being used; + * false if no positive effect results from the cache + * file. + */ + public boolean canUseCacheFile() + { + return false; + } + + + /** + * Determines whether ImageInputStreams created + * by this service provider require the use of a cache file. + * + *

The default behavior is to return false. + * + * @return true if the created streams can only work + * when a cache file is being used; false if no cache + * file is needed. + */ + public boolean needsCacheFile() + { + return false; + } + + + public abstract ImageInputStream createInputStreamInstance(Object input, + boolean useCache, + File cacheDir) + throws IOException; + + + public ImageInputStream createInputStreamInstance(Object input) + throws IOException + { + return createInputStreamInstance(input, canUseCacheFile(), null); + } +} -- cgit v1.2.3