loci.common

Class URLHandle

java.lang.Object

loci.common.StreamHandle

loci.common.URLHandle

All Implemented Interfaces:

DataInput, DataOutput, IRandomAccess

public class URLHandle
extends StreamHandle

Provides random access to URLs using the IRandomAccess interface. Instances of URLHandle are read-only.

Author:

Melissa Linkert melissa at glencoesoftware.com

See Also:

IRandomAccess, StreamHandle, URLConnection

Field Summary

Fields

Modifier and Type	Field and Description
private URLConnection	conn Socket underlying this stream
private String	url URL of open socket

Fields inherited from class loci.common.StreamHandle

file, fp, length, mark, order, outStream, stream

Constructor Summary

Constructors

Constructor and Description
URLHandle(String url) Constructs a new URLHandle using the given URL.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	resetStream() Close and reopen the stream; the stream pointer and mark should be reset to 0.
void	seek(long pos) Sets the stream pointer offset, measured from the beginning of this stream, at which the next read or write occurs.
private void	skip(long bytes) Skip over the given number of bytes.

Methods inherited from class loci.common.StreamHandle

close, getFilePointer, getOrder, length, read, read, read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, setOrder, skipBytes, write, write, write, write, write, writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Methods inherited from class java.lang.Object

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

Field Detail

url

private String url

URL of open socket

conn

private URLConnection conn

Socket underlying this stream

Constructor Detail

URLHandle

public URLHandle(String url)
          throws IOException

Constructs a new URLHandle using the given URL.

Throws:

IOException

Method Detail

seek

public void seek(long pos)
          throws IOException

Description copied from interface: IRandomAccess

Sets the stream pointer offset, measured from the beginning of this stream, at which the next read or write occurs.

Specified by:

seek in interface IRandomAccess

Overrides:

seek in class StreamHandle

Throws:

IOException

resetStream

protected void resetStream()
                    throws IOException

Description copied from class: StreamHandle

Close and reopen the stream; the stream pointer and mark should be reset to 0. This method is called if we need to seek backwards within the stream.

Specified by:

resetStream in class StreamHandle

Throws:

IOException

skip

private void skip(long bytes)
           throws IOException

Skip over the given number of bytes.

Throws:

IOException