com.qcloud.cos.model

类 COSObjectInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.qcloud.cos.internal.SdkFilterInputStream

com.qcloud.cos.model.COSObjectInputStream

所有已实现的接口:

Releasable, Closeable, AutoCloseable

public class COSObjectInputStream
extends SdkFilterInputStream

Input stream representing the content of an COSObject. In addition to the methods supplied by the InputStream class, COSObjectInputStream supplies the abort() method, which will terminate an HTTP connection to the COS object.

字段概要

从类继承的字段 java.io.FilterInputStream

in

构造器概要

构造器

构造器和说明
COSObjectInputStream(InputStream in, org.apache.http.client.methods.HttpRequestBase httpRequest)

方法概要

限定符和类型	方法和说明
void	abort() Can be used to provide abortion logic prior to throwing the AbortedException.
int	available() Returns super.available() if the value is not zero or else always returns 1.
void	close() Delegate to abort() if there is data remaining in the stream.
org.apache.http.client.methods.HttpRequestBase	getHttpRequest() Returns the http request from which this input stream is derived.
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()

从类继承的方法 com.qcloud.cos.internal.SdkFilterInputStream

abortIfNeeded, isAborted, mark, markSupported, release, skip

从类继承的方法 java.lang.Object

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

构造器详细资料

COSObjectInputStream

public COSObjectInputStream(InputStream in,
                            org.apache.http.client.methods.HttpRequestBase httpRequest)

方法详细资料

abort

public void abort()

Can be used to provide abortion logic prior to throwing the AbortedException. If the wrapped InputStream is also an instance of this class, then it will also be aborted, otherwise this is a no-op. Aborts the underlying http request without reading any more data and closes the stream.

By default Apache HttpClient tries to reuse http connections by reading to the end of an attached input stream on InputStream.close(). This is efficient from a socket pool management perspective, but for objects with large payloads can incur significant overhead while bytes are read from COS and discarded. It's up to clients to decide when to take the performance hit implicit in not reusing an http connection in order to not read unnecessary information from COS.

覆盖:

abort 在类中 SdkFilterInputStream

另请参阅:

EofSensorInputStream

getHttpRequest

public org.apache.http.client.methods.HttpRequestBase getHttpRequest()

Returns the http request from which this input stream is derived.

available

public int available()
              throws IOException

Returns super.available() if the value is not zero or else always returns 1. This is necessary to get around a GZIPInputStream bug which would mis-behave in some edge cases upon zero returned from available(), causing file truncation.

http://bugs.java.com/bugdatabase/view_bug.do?bug_id=7036144

Reference TT: 0034867351

覆盖:

available 在类中 SdkFilterInputStream

抛出:

IOException

read

public int read()
         throws IOException

覆盖:

read 在类中 SdkFilterInputStream

抛出:

IOException

read

public int read(byte[] b)
         throws IOException

覆盖:

read 在类中 FilterInputStream

抛出:

IOException

read

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

覆盖:

read 在类中 SdkFilterInputStream

抛出:

IOException

reset

public void reset()
           throws IOException

覆盖:

reset 在类中 SdkFilterInputStream

抛出:

IOException

close

public void close()
           throws IOException

Delegate to abort() if there is data remaining in the stream. If the stream has been read completely, with no data remaining, safely close the stream.

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 SdkFilterInputStream

抛出:

IOException

另请参阅:

COSObjectInputStream#abort()}