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-rw-r--r--awt/javax/imageio/stream/FileImageInputStream.java122
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diff --git a/awt/javax/imageio/stream/FileImageInputStream.java b/awt/javax/imageio/stream/FileImageInputStream.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.
+ */
+
+package javax.imageio.stream;
+
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.io.File;
+import java.io.FileNotFoundException;
+
+/**
+ * The FileImageInputStream class implements ImageInputStream and obtains its
+ * input data from a File or RandomAccessFile.
+ *
+ * @since Android 1.0
+ */
+public class FileImageInputStream extends ImageInputStreamImpl {
+
+ /**
+ * The raf.
+ */
+ RandomAccessFile raf;
+
+ /**
+ * Instantiates a new FileImageInputStream from the specified File.
+ *
+ * @param f
+ * the File of input data.
+ * @throws FileNotFoundException
+ * if the specified file doesn't exist.
+ * @throws IOException
+ * if an I/O exception has occurred.
+ */
+ @SuppressWarnings( {
+ "DuplicateThrows"
+ })
+ public FileImageInputStream(File f) throws FileNotFoundException, IOException {
+ if (f == null) {
+ throw new IllegalArgumentException("f == null!");
+ }
+
+ raf = new RandomAccessFile(f, "r");
+ }
+
+ /**
+ * Instantiates a new FileImageInputStream from the specified
+ * RandomAccessFile.
+ *
+ * @param raf
+ * the RandomAccessFile of input data.
+ */
+ public FileImageInputStream(RandomAccessFile raf) {
+ if (raf == null) {
+ throw new IllegalArgumentException("raf == null!");
+ }
+
+ this.raf = raf;
+ }
+
+ @Override
+ public int read() throws IOException {
+ bitOffset = 0;
+
+ int res = raf.read();
+ if (res != -1) {
+ streamPos++;
+ }
+ return res;
+ }
+
+ @Override
+ public int read(byte[] b, int off, int len) throws IOException {
+ bitOffset = 0;
+
+ int numRead = raf.read(b, off, len);
+ if (numRead >= 0) {
+ streamPos += numRead;
+ }
+
+ return numRead;
+ }
+
+ @Override
+ public long length() {
+ try {
+ return raf.length();
+ } catch (IOException e) {
+ return -1L;
+ }
+ }
+
+ @Override
+ public void seek(long pos) throws IOException {
+ if (pos < getFlushedPosition()) {
+ throw new IndexOutOfBoundsException();
+ }
+
+ raf.seek(pos);
+ streamPos = raf.getFilePointer();
+ bitOffset = 0;
+ }
+
+ @Override
+ public void close() throws IOException {
+ super.close();
+ raf.close();
+ }
+}