com.aliyun.oss.model

类 DownloadFileRequest

java.lang.Object

com.aliyun.oss.model.WebServiceRequest

com.aliyun.oss.model.GenericRequest

com.aliyun.oss.model.DownloadFileRequest

public class DownloadFileRequest
extends GenericRequest

The request class that is to download file with multiple parts download.

字段概要

从类继承的字段 com.aliyun.oss.model.WebServiceRequest

NOOP

构造器概要

构造器

构造器和说明
DownloadFileRequest(String bucketName, String key)
DownloadFileRequest(String bucketName, String key, String downloadFile, long partSize)
DownloadFileRequest(String bucketName, String key, String downloadFile, long partSize, int taskNum, boolean enableCheckpoint)
DownloadFileRequest(String bucketName, String key, String downloadFile, long partSize, int taskNum, boolean enableCheckpoint, String checkpointFile)

方法概要

方法

限定符和类型	方法和说明
void	clearMatchingETagConstraints()
void	clearNonmatchingETagConstraints()
String	getCheckpointFile()
String	getDownloadFile()
List<String>	getMatchingETagConstraints() Gets the ETag matching constraints.
Date	getModifiedSinceConstraint() Gets the modified since constraint.
List<String>	getNonmatchingETagConstraints() Gets the ETag non-matching constraints.
long	getPartSize()
long[]	getRange() Gets the range of the object to download.
ResponseHeaderOverrides	getResponseHeaders() Gets response headers to override.
int	getTaskNum()
String	getTempDownloadFile()
int	getTrafficLimit() Gets traffic limit speed, its unit is bit/s
Date	getUnmodifiedSinceConstraint() Gets the unmodified since constraint.
boolean	isEnableCheckpoint()
void	setCheckpointFile(String checkpointFile)
void	setDownloadFile(String downloadFile)
void	setEnableCheckpoint(boolean enableCheckpoint)
void	setMatchingETagConstraints(List<String> eTagList) Sets the ETag matching constraints (optional).
void	setModifiedSinceConstraint(Date date) Sets the modified since constraint.
void	setNonmatchingETagConstraints(List<String> eTagList) Sets the ETag non-matching constraints.
void	setPartSize(long partSize)
void	setRange(long start, long end) Sets the range of the object to download (optional).
void	setResponseHeaders(ResponseHeaderOverrides responseHeaders) Sets response headers to override.
void	setTaskNum(int taskNum)
void	setTrafficLimit(int trafficLimit) Sets traffic limit speed, its unit is bit/s
void	setUnmodifiedSinceConstraint(Date date) Sets the unmodified since constraint.

从类继承的方法 com.aliyun.oss.model.GenericRequest

getBucketName, getKey, getRequestPayer, getVersionId, setBucketName, setKey, setRequestPayer, setVersionId, withBucketName, withKey, withRequestPayer, withVersionId

从类继承的方法 com.aliyun.oss.model.WebServiceRequest

addAdditionalHeaderName, addHeader, addParameter, getAdditionalHeaderNames, getHeaders, getParameters, getProgressListener, isLogEnabled, setAdditionalHeaderNames, setHeaders, setLogEnabled, setParameters, setProgressListener, withProgressListener

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

DownloadFileRequest

public DownloadFileRequest(String bucketName,
                   String key)

DownloadFileRequest

public DownloadFileRequest(String bucketName,
                   String key,
                   String downloadFile,
                   long partSize)

DownloadFileRequest

public DownloadFileRequest(String bucketName,
                   String key,
                   String downloadFile,
                   long partSize,
                   int taskNum,
                   boolean enableCheckpoint)

DownloadFileRequest

public DownloadFileRequest(String bucketName,
                   String key,
                   String downloadFile,
                   long partSize,
                   int taskNum,
                   boolean enableCheckpoint,
                   String checkpointFile)

方法详细资料

getPartSize

public long getPartSize()

setPartSize

public void setPartSize(long partSize)

getTaskNum

public int getTaskNum()

setTaskNum

public void setTaskNum(int taskNum)

getDownloadFile

public String getDownloadFile()

getTempDownloadFile

public String getTempDownloadFile()

setDownloadFile

public void setDownloadFile(String downloadFile)

isEnableCheckpoint

public boolean isEnableCheckpoint()

setEnableCheckpoint

public void setEnableCheckpoint(boolean enableCheckpoint)

getCheckpointFile

public String getCheckpointFile()

setCheckpointFile

public void setCheckpointFile(String checkpointFile)

getMatchingETagConstraints

public List<String> getMatchingETagConstraints()

Gets the ETag matching constraints. The download only happens if the specified ETag matches the source file's ETag. If ETag does not match, returns the precondition failure (412)

返回:

The expected ETag list.

setMatchingETagConstraints

public void setMatchingETagConstraints(List<String> eTagList)

Sets the ETag matching constraints (optional). The download only happens if the specified ETag matches the source file's ETag. If ETag does not match, returns the precondition failure (412)

参数:

eTagList - The expected ETag list.

clearMatchingETagConstraints

public void clearMatchingETagConstraints()

getNonmatchingETagConstraints

public List<String> getNonmatchingETagConstraints()

Gets the ETag non-matching constraints. The download only happens if the specified ETag does not match the source file's ETag. If ETag matches, returns the precondition failure (412)

返回:

The expected ETag list.

setNonmatchingETagConstraints

public void setNonmatchingETagConstraints(List<String> eTagList)

Sets the ETag non-matching constraints. The download only happens if the specified ETag does not match the source file's ETag. If ETag matches, returns the precondition failure (412)

参数:

eTagList - The expected ETag list. For now only the first ETag is used, though the parameter is the list.

clearNonmatchingETagConstraints

public void clearNonmatchingETagConstraints()

getUnmodifiedSinceConstraint

public Date getUnmodifiedSinceConstraint()

Gets the unmodified since constraint.

返回:

The time threshold. If it's same or later than the actual modified time, download the file.

setUnmodifiedSinceConstraint

public void setUnmodifiedSinceConstraint(Date date)

Sets the unmodified since constraint.

参数:

date - The time threshold. If it's same or later than the actual modified time, download the file.

getModifiedSinceConstraint

public Date getModifiedSinceConstraint()

Gets the modified since constraint.

返回:

The time threshold. If it's earlier than the actual modified time, download the file.

setModifiedSinceConstraint

public void setModifiedSinceConstraint(Date date)

Sets the modified since constraint.

参数:

date - The time threshold. If it's earlier than the actual modified time, download the file.

getResponseHeaders

public ResponseHeaderOverrides getResponseHeaders()

Gets response headers to override.

返回:

The headers to override with.

setResponseHeaders

public void setResponseHeaders(ResponseHeaderOverrides responseHeaders)

Sets response headers to override.

参数:

responseHeaders - The headers to override with.

setTrafficLimit

public void setTrafficLimit(int trafficLimit)

Sets traffic limit speed, its unit is bit/s

getTrafficLimit

public int getTrafficLimit()

Gets traffic limit speed, its unit is bit/s

返回:

traffic limit speed

getRange

public long[] getRange()

Gets the range of the object to download. The range is in the form of {start, end}---start and end is position of the object's content.

返回:

The range of the object to download.

setRange

public void setRange(long start,
            long end)

Sets the range of the object to download (optional).

参数:

start -

Start position

When the start is non-negative, it means the starting position to download. When the start is -1, it means the range is determined by the end only and the end could not be -1. For example, when start is -1 and end is 100. It means the download range will be the last 100 bytes.

end -

End position

When the end is non-negative, it means the ending position to download. When the end is -1, it means the range is determined by the start only and the start could not be -1. For example, when end is -1 and start is 100. It means the download range will be all exception first 100 bytes.