Top Description Inners Fields Constructors Methods
com.sun.javafx.runtime.async

public abstract Class AbstractRemoteResource<T>

extends AbstractAsyncOperation<T>
Class Inheritance
Known Direct Subclasses
com.sun.javafx.tk.quantum.PrismImageLoader2.AsyncImageLoader
Imports
java.io.BufferedInputStream, .IOException, .InputStream, .InterruptedIOException, .OutputStream, java.net.HttpURLConnection, .URL, .URLConnection, java.util.HashMap, .Iterator, .List, .Map
Abstract base class for representing remote resources identified by a URL. Subclasses may plug in arbitrary post-processing on the stream to turn it into the desired result. Manages progress indication if the remote resource provides a content-length header.

Nested and Inner Type Summary

Modifier and TypeClass and Description
protected class
AbstractRemoteResource.ProgressInputStream

Field Summary

Modifier and TypeField and Description
protected int
fileSize

private Map<String, String>
headers

protected final String
method

protected final String
outboundContent

private Map<String, List<String>>
responseHeaders

protected final String
url

Inherited from com.sun.javafx.runtime.async.AbstractAsyncOperation:
futurelistener

Constructor Summary

AccessConstructor and Description
protected
AbstractRemoteResource(String url, AsyncOperationListener<T> listener)

protected
AbstractRemoteResource(String url, String method, AsyncOperationListener<T> listener)

protected
AbstractRemoteResource(String url, String method, String outboundContent, AsyncOperationListener<T> listener)

Method Summary

Modifier and TypeMethod and Description
public T
call()

Implements java.util.concurrent.Callable.call.

Computes a result, or throws an exception if unable to do so.

public String
getResponseHeader(String header)

protected abstract T
processStream(InputStream stream)

public void
setHeader(String header, String value)

Inherited from com.sun.javafx.runtime.async.AbstractAsyncOperation:
addProgresscancelgetProgressGranularitygetProgressMaxisCancelledisDonenotifyProgresssetProgressGranularitysetProgressMaxstart

Field Detail

fileSizeback to summary
protected int fileSize
headersback to summary
private Map<String, String> headers
methodback to summary
protected final String method
outboundContentback to summary
protected final String outboundContent
responseHeadersback to summary
private Map<String, List<String>> responseHeaders
urlback to summary
protected final String url

Constructor Detail

AbstractRemoteResourceback to summary
protected AbstractRemoteResource(String url, AsyncOperationListener<T> listener)
AbstractRemoteResourceback to summary
protected AbstractRemoteResource(String url, String method, AsyncOperationListener<T> listener)
AbstractRemoteResourceback to summary
protected AbstractRemoteResource(String url, String method, String outboundContent, AsyncOperationListener<T> listener)

Method Detail

callback to summary
public T call() throws IOException

Implements java.util.concurrent.Callable.call.

Doc from java.util.concurrent.Callable.call.

Computes a result, or throws an exception if unable to do so.

Returns:T

computed result

Annotations
@Override
getResponseHeaderback to summary
public String getResponseHeader(String header)
processStreamback to summary
protected abstract T processStream(InputStream stream) throws IOException
setHeaderback to summary
public void setHeader(String header, String value)
com.sun.javafx.runtime.async back to summary

protected Class AbstractRemoteResource.ProgressInputStream

extends BufferedInputStream
Class Inheritance

Field Summary

Inherited from java.io.BufferedInputStream:
bufcountmarklimitmarkpospos

Constructor Summary

AccessConstructor and Description
public
ProgressInputStream(InputStream in)

Method Summary

Modifier and TypeMethod and Description
public synchronized int
read()

Overrides java.io.BufferedInputStream.read.

See the general contract of the read method of InputStream.

public synchronized int
read(byte[]
destination buffer.
b, int
offset at which to start storing bytes.
off, int
maximum number of bytes to read.
len)

Overrides java.io.BufferedInputStream.read.

Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.

public int
read(byte[]
the buffer into which the data is read.
b)

Overrides java.io.FilterInputStream.read.

Reads up to b.length bytes of data from this input stream into an array of bytes.

Inherited from java.io.BufferedInputStream:
availableclosemarkmarkSupportedresetskiptransferTo

Constructor Detail

ProgressInputStreamback to summary
public ProgressInputStream(InputStream in)

Method Detail

readback to summary
public synchronized int read() throws IOException

Overrides java.io.BufferedInputStream.read.

Doc from java.io.BufferedInputStream.read.

See the general contract of the read method of InputStream.

Returns:int

the next byte of data, or -1 if the end of the stream is reached.

Annotations
@Override
Exceptions
IOException:
if this input stream has been closed by invoking its close() method, or an I/O error occurs.
readback to summary
public synchronized int read(byte[] b, int off, int len) throws IOException

Overrides java.io.BufferedInputStream.read.

Doc from java.io.BufferedInputStream.read.

Reads bytes from this byte-input stream into the specified byte array, starting at the given offset.

This method implements the general contract of the corresponding read method of the InputStream class. As an additional convenience, it attempts to read as many bytes as possible by repeatedly invoking the read method of the underlying stream. This iterated read continues until one of the following conditions becomes true:

  • The specified number of bytes have been read,
  • The read method of the underlying stream returns -1, indicating end-of-file, or
  • The available method of the underlying stream returns zero, indicating that further input requests would block.
If the first read on the underlying stream returns -1 to indicate end-of-file then this method returns -1. Otherwise, this method returns the number of bytes actually read.

Subclasses of this class are encouraged, but not required, to attempt to read as many bytes as possible in the same fashion.

Parameters
b:byte[]

destination buffer.

off:int

offset at which to start storing bytes.

len:int

maximum number of bytes to read.

Returns:int

the number of bytes read, or -1 if the end of the stream has been reached.

Annotations
@Override
Exceptions
IOException:
if this input stream has been closed by invoking its close() method, or an I/O error occurs.
readback to summary
public int read(byte[] b) throws IOException

Overrides java.io.FilterInputStream.read.

Doc from java.io.FilterInputStream.read.

Reads up to b.length bytes of data from this input stream into an array of bytes. This method blocks until some input is available.

Parameters
b:byte[]

the buffer into which the data is read.

Returns:int

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations
@Override
Exceptions
IOException:
if an I/O error occurs.