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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 org.apache.catalina.connector;
 
 
This class handles reading bytes.

Author(s):
Remy Maucherat
Jean-Francois Arcand
 
 public class CoyoteInputStream
     extends AbstractServletInputStream {
 
 
     // ----------------------------------------------------- Instance Variables
 
 
     protected InputBuffer ib;
 
 
     // ----------------------------------------------------------- Constructors
 
 
     protected CoyoteInputStream(InputBuffer ib) {
         this. = ib;
     }
 
 
     // -------------------------------------------------------- Package Methods
 

    
Clear facade.
 
     void clear() {
          = null;
     }
 
 
     // --------------------------------------------------------- Public Methods
 

    
Prevent cloning the facade.
 
     protected Object clone()
         throws CloneNotSupportedException {
         throw new CloneNotSupportedException();
     }
 
 
     // --------------------------------------------- ServletInputStream Methods
 
 
     public int read()
         throws IOException {    
         if (SecurityUtil.isPackageProtectionEnabled()){
             
             try{
                 Integer result = 
                     (Integer)AccessController.doPrivileged(
                         new PrivilegedExceptionAction(){
 
                             public Object run() throws IOException{
                                 Integer integer = new Integer(.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 .readByte();
        }
    }
    public int available() throws IOException {
        
        if (SecurityUtil.isPackageProtectionEnabled()){
            try{
                Integer result = 
                    (Integer)AccessController.doPrivileged(
                        new PrivilegedExceptionAction(){
                            public Object run() throws IOException{
                                Integer integer = new Integer(.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 .available();
        }    
    }
    public int read(final byte[] bthrows IOException {
        
        if (SecurityUtil.isPackageProtectionEnabled()){
            try{
                Integer result = 
                    (Integer)AccessController.doPrivileged(
                        new PrivilegedExceptionAction(){
                            public Object run() throws IOException{
                                Integer integer = 
                                    new Integer(.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 .read(b, 0, b.length);
         }        
    }
    public int read(final byte[] bfinal int offfinal int len)
        throws IOException {
            
        if (SecurityUtil.isPackageProtectionEnabled()){
            try{
                Integer result = 
                    (Integer)AccessController.doPrivileged(
                        new PrivilegedExceptionAction(){
                            public Object run() throws IOException{
                                Integer integer = 
                                    new Integer(.read(bofflen));
                                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 .read(bofflen);
        }            
    }
    public int readLine(byte[] bint offint lenthrows IOException {
        return super.readLine(bofflen);
    }


    
Close the stream Since we re-cycle, we can't allow the call to super.close() which would permantely disable us.
    public void close() throws IOException {
        
        if (SecurityUtil.isPackageProtectionEnabled()){
            try{
                AccessController.doPrivileged(
                    new PrivilegedExceptionAction(){
                        public Object run() throws IOException{
                            .close();
                            return null;
                        }
                });
            } catch(PrivilegedActionException pae){
                Exception e = pae.getException();
                if (e instanceof IOException){
                    throw (IOException)e;
                } else {
                    throw new RuntimeException(e.getMessage());
                }
            }
        } else {
             .close();
        }
    }
    public boolean isFinished() {
        return .isEof();
    }
    public boolean isReady() {
        return (.available() > 0);
    }
    @Override
    public void setReadListener(ReadListener readListener) {
        .setReadListener(readListener);
    }
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