com.google.api.client.http
Class AbstractInputStreamContent

java.lang.Object
  com.google.api.client.http.AbstractInputStreamContent

All Implemented Interfaces:

HttpContent

Direct Known Subclasses:

ByteArrayContent, FileContent, InputStreamContent

public abstract class AbstractInputStreamContent
extends Object
implements HttpContent

Serializes HTTP request content from an input stream into an output stream.

The type field is required. Subclasses should implement the HttpContent.getLength(), getInputStream(), and HttpContent.retrySupported() for their specific type of input stream.

Since:

1.4

Author:

moshenko@google.com (Jacob Moshenko)

Field Summary

String	encoding Content encoding (for example "gzip") or null for none.
String	type Required content type.

Constructor Summary

AbstractInputStreamContent()

Method Summary

static void	copy(InputStream inputStream, OutputStream outputStream) Writes the content provided by the given source input stream into the given destination output stream.
String	getEncoding() Returns the content encoding (for example "gzip") or null for none.
protected abstract InputStream	getInputStream() Return an input stream for the specific implementation type of AbstractInputStreamContent.
String	getType() Returns the content type or null for none.
void	writeTo(OutputStream out) Writes the content to the given output stream.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.api.client.http.HttpContent

getLength, retrySupported

Field Detail

type

public String type

Required content type.

encoding

public String encoding

Content encoding (for example "gzip") or null for none.

Constructor Detail

AbstractInputStreamContent

public AbstractInputStreamContent()

Method Detail

getInputStream

protected abstract InputStream getInputStream()
                                       throws IOException

Return an input stream for the specific implementation type of AbstractInputStreamContent. If the specific implementation will return true for HttpContent.retrySupported() this should be a factory function which will create a new InputStream from the source data whenever invoked.

Throws:

IOException

writeTo

public void writeTo(OutputStream out)
             throws IOException

Description copied from interface: HttpContent

Writes the content to the given output stream.

Specified by:

writeTo in interface HttpContent

Throws:

IOException

getEncoding

public String getEncoding()

Description copied from interface: HttpContent

Returns the content encoding (for example "gzip") or null for none.

Specified by:

getEncoding in interface HttpContent

getType

public String getType()

Description copied from interface: HttpContent

Returns the content type or null for none.

Specified by:

getType in interface HttpContent

copy

public static void copy(InputStream inputStream,
                        OutputStream outputStream)
                 throws IOException

Writes the content provided by the given source input stream into the given destination output stream.

The input stream is guaranteed to be closed at the end of the method.

Sample use:

  static void downloadMedia(HttpResponse response, File file)
      throws IOException {
    FileOutputStream out = new FileOutputStream(file);
    try {
      AbstractInputStreamContent.copy(response.getContent(), out);
    } finally {
      out.close();
    }
  }
 

Parameters:

inputStream - source input stream

outputStream - destination output stream

Throws:

IOException - I/O exception