Android Open Source - RadaeePDF-B4A P D F File Stream

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License

The source code is released under:

Apache License

Java Source Code

package com.radaee.util;
//from   ww w . java  2 s. c  om
import android.util.Log;

import com.radaee.pdf.Document;
import com.radaee.pdf.Document.PDFStream;
import java.io.RandomAccessFile;

/**
 * File stream, an implement class for PDFStream, which used in Document.OpenStream
 * @author radaee
 */
public class PDFFileStream implements PDFStream
{
  private RandomAccessFile m_impl;
  public boolean open( String path )
  {
    try
    {
      m_impl = new RandomAccessFile( path, "rw" );
      return true;
    }
    catch( Exception e )
    {
      return false;
    }
  }
  public void close()
  {
    try
    {
      m_impl.close();
    }
    catch( Exception e )
    {
    }
    m_impl = null;
  }
  public boolean writeable()
  {
    return true;
  }
  public int get_size()
  {
    try
    {
      int len = (int)m_impl.length();
      if( len < 0 ) return 0;
      else return len;
    }
    catch( Exception e )
    {
      Log.d("get_size", e.getMessage());
      return 0;
    }
  }

  public int read(byte[] data)
  {
    try
    {
      int len = m_impl.read(data);
      if( len < 0 )
        return 0;
      else
        return len;
    }
    catch( Exception e )
    {
      Log.d("read", e.getMessage());
      return 0;
    }
  }

  public int write(byte[] data)
  {
    try
    {
      m_impl.write(data);
      return data.length;
    }
    catch( Exception e )
    {
      return 0;
    }
  }

  public void seek(int pos)
  {
    try
    {
      m_impl.seek(pos);
    }
    catch( Exception e )
    {
      Log.d("seek", e.getMessage());
    }
  }

  public int tell()
  {
    try
    {
      int pos = (int)m_impl.getFilePointer();
      if( pos < 0 ) return 0;
      else return pos;
    }
    catch( Exception e )
    {
      Log.d("tell", e.getMessage());
      return 0;
    }
  }
}

Java Source Code List

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