/**************************************************************************
* Parts copyright (c) 2001 by Punch Telematix. All rights reserved. *
* Parts copyright (c) 2009 by Chris Gray, /k/ Embedded Java Solutions. *
* All rights reserved. *
* *
* Redistribution and use in source and binary forms, with or without *
* modification, are permitted provided that the following conditions *
* are met: *
* 1. Redistributions of source code must retain the above copyright *
* notice, this list of conditions and the following disclaimer. *
* 2. Redistributions in binary form must reproduce the above copyright *
* notice, this list of conditions and the following disclaimer in the *
* documentation and/or other materials provided with the distribution. *
* 3. Neither the name of Punch Telematix or of /k/ Embedded Java Solutions*
* nor the names of other contributors may be used to endorse or promote*
* products derived from this software without specific prior written *
* permission. *
* *
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED *
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. *
* IN NO EVENT SHALL PUNCH TELEMATIX, /K/ EMBEDDED JAVA SOLUTIONS OR OTHER *
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
**************************************************************************/
package java.io;
public class FileInputStream extends InputStream {
private FileDescriptor fd;
public FileInputStream(String path) throws SecurityException, FileNotFoundException {
if (wonka.vm.SecurityConfiguration.ENABLE_SECURITY_CHECKS) {
SecurityManager sm = System.getSecurityManager();
if(sm!=null) {
sm.checkRead(path);
}
}
File file = new File(path);
if (!file.exists() || file.isDirectory()) {
throw new FileNotFoundException(path);
}
fd = new FileDescriptor(new File(path).getAbsolutePath(), FileDescriptor.MODE_READ);
}
public FileInputStream(File file) throws SecurityException, FileNotFoundException {
if (wonka.vm.SecurityConfiguration.ENABLE_SECURITY_CHECKS) {
SecurityManager sm = System.getSecurityManager();
if(sm!=null) {
sm.checkRead(file.getAbsolutePath());
}
}
if (!file.exists() || file.isDirectory()) {
throw new FileNotFoundException(file.getPath());
}
fd = new FileDescriptor(file.getAbsolutePath(), FileDescriptor.MODE_READ);
}
public FileInputStream(FileDescriptor fdObj) throws SecurityException {
if (wonka.vm.SecurityConfiguration.ENABLE_SECURITY_CHECKS) {
SecurityManager sm = System.getSecurityManager();
if(sm!=null) {
sm.checkRead(fdObj);
}
}
fd = fdObj;
}
public synchronized native int read()
throws IOException;
private synchronized native int readIntoBuffer(byte[] b, int off, int len)
throws IOException;
public int read(byte[] b)
throws IOException, NullPointerException {
return read(b, 0, b.length);
}
public int read(byte[] b, int off, int len)
throws IOException, NullPointerException, ArrayIndexOutOfBoundsException {
return readIntoBuffer(b, off, len);
}
public synchronized native long skip(long n)
throws IOException;
public native int available()
throws IOException;
public synchronized native void close()
throws IOException;
public final FileDescriptor getFD()
throws IOException {
// when would this throw IOException?
return fd;
}
protected void finalize()
throws IOException {
if(fd != null) close();
}
}