Initial Contribution
diff --git a/awt/javax/imageio/spi/ImageInputStreamSpi.java b/awt/javax/imageio/spi/ImageInputStreamSpi.java
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+++ b/awt/javax/imageio/spi/ImageInputStreamSpi.java
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+/**
+ * @author Rustem V. Rafikov
+ * @version $Revision: 1.3 $
+ */
+package javax.imageio.spi;
+
+import java.io.File;
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+
+/**
+ * The ImageInputStreamSpi abstract class is a service provider
+ * interface (SPI) for ImageInputStreams.
+ */
+public abstract class ImageInputStreamSpi extends IIOServiceProvider implements
+ RegisterableService {
+
+ /** The input class. */
+ protected Class<?> inputClass;
+
+ /**
+ * Instantiates a new ImageInputStreamSpi.
+ */
+ protected ImageInputStreamSpi() {
+ throw new UnsupportedOperationException("Not supported yet");
+ }
+
+ /**
+ * Instantiates a new ImageInputStreamSpi.
+ *
+ * @param vendorName the vendor name.
+ * @param version the version.
+ * @param inputClass the input class.
+ */
+ public ImageInputStreamSpi(String vendorName, String version, Class<?> inputClass) {
+ super(vendorName, version);
+ this.inputClass = inputClass;
+ }
+
+ /**
+ * Gets an input Class object that represents class or
+ * interface that must be implemented by an input source.
+ *
+ * @return the input class.
+ */
+ public Class<?> getInputClass() {
+ return inputClass;
+ }
+
+ /**
+ * Returns true if the ImageInputStream can use a cache
+ * file. If this method returns false, the value of the
+ * useCache parameter of createInputStreamInstance will
+ * be ignored. The default implementation returns false.
+ *
+ * @return true if the ImageInputStream can use a cache
+ * file, false otherwise.
+ */
+ public boolean canUseCacheFile() {
+ return false; //-- def
+ }
+
+ /**
+ * Returns true if the ImageInputStream implementation
+ * requires the use of a cache file. The default implementation
+ * returns false.
+ *
+ * @return true if the ImageInputStream implementation
+ * requires the use of a cache file, false otherwise.
+ */
+ public boolean needsCacheFile() {
+ return false; // def
+ }
+
+ /**
+ * Creates the ImageInputStream associated with this
+ * service provider. The input object should
+ * be an instance of the class returned by th getInputClass
+ * method. This method uses the specified directory
+ * for the cache file if the useCache parameter is true.
+ *
+ * @param input the input Object.
+ * @param useCache the flag indicating if a cache file
+ * is needed or not.
+ * @param cacheDir the cache directory.
+ *
+ * @return the ImageInputStream.
+ *
+ * @throws IOException Signals that an I/O exception has occurred.
+ */
+ public abstract ImageInputStream createInputStreamInstance(Object input, boolean useCache,
+ File cacheDir) throws IOException;
+
+ /**
+ * Creates the ImageInputStream associated with this
+ * service provider. The input object should
+ * be an instance of the class returned by getInputClass
+ * method. This method uses the default system directory
+ * for the cache file, if it is needed.
+ *
+ * @param input the input Object.
+ *
+ * @return the ImageInputStream.
+ *
+ * @throws IOException Signals that an I/O exception has occurred.
+ */
+ public ImageInputStream createInputStreamInstance(Object input) throws IOException {
+ return createInputStreamInstance(input, true, null);
+ }
+}