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* Copyright 2004 The Apache Software Foundation
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package com.sun.grizzly.tcp.http11;
import java.io.IOException;
import java.io.InputStream;
import java.security.AccessController;
import java.security.PrivilegedExceptionAction;
import java.security.PrivilegedActionException;
/**
* This class handles reading bytes.
*
* @author Remy Maucherat
* @author Jean-Francois Arcand
*/
public class GrizzlyInputStream extends InputStream {
// ----------------------------------------------------- Instance Variables
protected GrizzlyInputBuffer ib;
// ----------------------------------------------------------- Constructors
public GrizzlyInputStream(GrizzlyInputBuffer ib) {
this.ib = ib;
}
// --------------------------------------------------------- Public Methods
/**
* Prevent cloning the facade.
*/
@Override
protected Object clone()
throws CloneNotSupportedException {
throw new CloneNotSupportedException();
}
// -------------------------------------------------------- Package Methods
/**
* Clear facade.
*/
void clear() {
ib = null;
}
// --------------------------------------------- ServletInputStream Methods
public int read()
throws IOException {
if (System.getSecurityManager() != null){
try{
@SuppressWarnings("unchecked")
Integer result =
(Integer)AccessController.doPrivileged(
new PrivilegedExceptionAction(){
public Object run() throws IOException{
Integer integer = new Integer(ib.readByte());
return integer;
}
});
return result.intValue();
} catch(PrivilegedActionException pae){
Exception e = pae.getException();
if (e instanceof IOException){
throw (IOException)e;
} else {
throw new RuntimeException(e.getMessage());
}
}
} else {
return ib.readByte();
}
}
@Override
public int available() throws IOException {
if (System.getSecurityManager() != null){
try{
@SuppressWarnings("unchecked")
Integer result =
(Integer)AccessController.doPrivileged(
new PrivilegedExceptionAction(){
public Object run() throws IOException{
Integer integer = new Integer(ib.available());
return integer;
}
});
return result.intValue();
} catch(PrivilegedActionException pae){
Exception e = pae.getException();
if (e instanceof IOException){
throw (IOException)e;
} else {
throw new RuntimeException(e.getMessage());
}
}
} else {
return ib.available();
}
}
@Override
public int read(final byte[] b) throws IOException {
if (System.getSecurityManager() != null){
try{
@SuppressWarnings("unchecked")
Integer result =
(Integer)AccessController.doPrivileged(
new PrivilegedExceptionAction(){
public Object run() throws IOException{
Integer integer =
new Integer(ib.read(b, 0, b.length));
return integer;
}
});
return result.intValue();
} catch(PrivilegedActionException pae){
Exception e = pae.getException();
if (e instanceof IOException){
throw (IOException)e;
} else {
throw new RuntimeException(e.getMessage());
}
}
} else {
return ib.read(b, 0, b.length);
}
}
@Override
public int read(final byte[] b, final int off, final int len)
throws IOException {
if (System.getSecurityManager() != null){
try{
@SuppressWarnings("unchecked")
Integer result =
(Integer)AccessController.doPrivileged(
new PrivilegedExceptionAction(){
public Object run() throws IOException{
Integer integer =
new Integer(ib.read(b, off, len));
return integer;
}
});
return result.intValue();
} catch(PrivilegedActionException pae){
Exception e = pae.getException();
if (e instanceof IOException){
throw (IOException)e;
} else {
throw new RuntimeException(e.getMessage());
}
}
} else {
return ib.read(b, off, len);
}
}
/**
* Close the stream
* Since we re-cycle, we can't allow the call to super.close()
* which would permantely disable us.
*/
@Override
@SuppressWarnings("unchecked")
public void close() throws IOException {
if (System.getSecurityManager() != null){
try{
AccessController.doPrivileged(
new PrivilegedExceptionAction(){
public Object run() throws IOException{
ib.close();
return null;
}
});
} catch(PrivilegedActionException pae){
Exception e = pae.getException();
if (e instanceof IOException){
throw (IOException)e;
} else {
throw new RuntimeException(e.getMessage());
}
}
} else {
ib.close();
}
}
}