hudson.plugins.testcomplete.mht
Class MHTInputStream

java.lang.Object
  java.io.InputStream
      java.io.FilterInputStream
          hudson.plugins.testcomplete.mht.MHTInputStream

All Implemented Interfaces:

Closeable

public class MHTInputStream
extends FilterInputStream

Utility class to read MHT files produced by TestComplete and inspired by inspired by ZipInputStream. This class could also process (though not tested) MHT files produced by other programs.

Author:

Fernando Miguélez Palomo

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

MHTInputStream(InputStream in)
Creates a new MHT input stream and reads the header of the MHT so getBaseUrl() can be called immediately.

Method Summary

int	available() Returns 0 after EOF has reached for the current entry data, otherwise always return 1.
void	close()
String	getBaseUrl() Returns the URL all MHT entries are referenced to.
MHTEntry	getNextEntry() Returns the next MHTEntry in the stream and positions the stream at the beginning of the entry data.
MHTEntry	getNextEntry(String name) Reads the next MHT entry with the name given and positions the stream at the beginning of the entry data.
void	mark(int readlimit) This operation is not supported with this input stream and UnsupportedOperationException will be thrown if this method is called.
boolean	markSupported()
int	read(byte[] b, int off, int len) Reads from the current MHT entry into an array of bytes.
void	reset() This operation is not supported with this input stream and UnsupportedOperationException will be thrown if this method is called.
long	skip(long n) This operation is not supported with this input stream and UnsupportedOperationException will be thrown if this method is called.

Methods inherited from class java.io.FilterInputStream

read, read

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MHTInputStream

public MHTInputStream(InputStream in)
               throws MHTException

Creates a new MHT input stream and reads the header of the MHT so getBaseUrl() can be called immediately.

Parameters:

in - the actual input stream

Throws:

MHTException - if a MHT error has occurred

Method Detail

getBaseUrl

public String getBaseUrl()

Returns the URL all MHT entries are referenced to. This URL is available right after instantiating the stream.

Returns:

the URL all MHT entries are referenced to

getNextEntry

public MHTEntry getNextEntry(String name)
                      throws IOException

Reads the next MHT entry with the name given and positions the stream at the beginning of the entry data. If no entry with such name is found then null is returned and the stream is positioned at EOF.

The name of an entry is considered to be the relative part of the URL stripping out the base URL (as returned by getBaseUrl()). E.g. If an entry has an internal URL http://localhost/index.html and base URL of the stream is http://localhost/ then index.html is the name of the entry.

If the name provided is null next entry in stream is read.

Parameters:

name - the name of the entry to read or null following entry is desired

Returns:

the entry or null if no entry is found with the name provided

Throws:

IOException - if an I/O error has occurred

MHTException - if a MHT error has occurred

getNextEntry

public MHTEntry getNextEntry()
                      throws IOException

Returns the next MHTEntry in the stream and positions the stream at the beginning of the entry data. This is equivalent to calling getNextEntry(String) with null name.

Returns:

the entry or null if no more entries are available.

Throws:

IOException - if an I/O error has occurred

MHTException - if a MHT error has occurred

available

public int available()
              throws IOException

Returns 0 after EOF has reached for the current entry data, otherwise always return 1.

Programs should not count on this method to return the actual number of bytes that could be read without blocking.

Overrides:

available in class FilterInputStream

Returns:

1 before EOF and 0 after EOF has reached for current entry.

Throws:

IOException - if an I/O error has occurred

skip

public long skip(long n)
          throws IOException

This operation is not supported with this input stream and UnsupportedOperationException will be thrown if this method is called.

Overrides:

skip in class FilterInputStream

Throws:

UnsupportedOperationException - if called

IOException

markSupported

public boolean markSupported()

Overrides:

markSupported in class FilterInputStream

mark

public void mark(int readlimit)

This operation is not supported with this input stream and UnsupportedOperationException will be thrown if this method is called.

Overrides:

mark in class FilterInputStream

Throws:

UnsupportedOperationException - if called

reset

public void reset()
           throws IOException

This operation is not supported with this input stream and UnsupportedOperationException will be thrown if this method is called.

Overrides:

reset in class FilterInputStream

Throws:

UnsupportedOperationException - if called

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class FilterInputStream

Throws:

IOException

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Reads from the current MHT entry into an array of bytes. If len is not zero, the method blocks until some input is available; otherwise, no bytes are read and 0 is returned.

Overrides:

read in class FilterInputStream

Parameters:

b - the buffer into which the data is read

off - the start offset in the destination array b

len - the maximum number of bytes read

Throws:

IOException