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MultipartUtils
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org.jets3t.service.utils</FONT>
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Class MultipartUtils</H2>
<PRE>
<A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.jets3t.service.utils.MultipartUtils</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class <B>MultipartUtils</B><DT>extends <A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL>
</PRE>
<P>
Tool to simplify working with the multipart uploads feature offered by
Amazon S3.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>jmurty</DD>
</DL>
<HR>
<P>
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<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MAX_OBJECT_SIZE">MAX_OBJECT_SIZE</A></B></CODE>
<BR>
Maximum object size supported by S3: 5 GB</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MIN_PART_SIZE">MIN_PART_SIZE</A></B></CODE>
<BR>
Minimum multipart upload part size supported by S3: 5 MB.</TD>
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<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MultipartUtils()">MultipartUtils</A></B>()</CODE>
<BR>
Use default value for maximum part size: <A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MAX_OBJECT_SIZE"><CODE>MAX_OBJECT_SIZE</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MultipartUtils(long)">MultipartUtils</A></B>(long maxPartSize)</CODE>
<BR>
</TD>
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<CODE> long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#getMaxPartSize()">getMaxPartSize</A></B>()</CODE>
<BR>
</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#isFileLargerThanMaxPartSize(java.io.File)">isFileLargerThanMaxPartSize</A></B>(<A HREF="/usr/share/doc/default-jdk-doc/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> file)</CODE>
<BR>
</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="/usr/share/doc/default-jdk-doc/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../org/jets3t/service/model/S3Object.html" title="class in org.jets3t.service.model">S3Object</A>></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#splitFileIntoObjectsByMaxPartSize(java.lang.String, java.io.File)">splitFileIntoObjectsByMaxPartSize</A></B>(<A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> objectKey,
<A HREF="/usr/share/doc/default-jdk-doc/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> file)</CODE>
<BR>
Split the given file into objects such that no object has a size greater than
the defined maximum part size.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#uploadObjects(java.lang.String, org.jets3t.service.S3Service, java.util.List, org.jets3t.service.multi.s3.S3ServiceEventListener)">uploadObjects</A></B>(<A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> bucketName,
<A HREF="../../../../org/jets3t/service/S3Service.html" title="class in org.jets3t.service">S3Service</A> s3Service,
<A HREF="/usr/share/doc/default-jdk-doc/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../org/jets3t/service/model/StorageObject.html" title="class in org.jets3t.service.model">StorageObject</A>> objectsForMultipartUpload,
<A HREF="../../../../org/jets3t/service/multi/s3/S3ServiceEventListener.html" title="interface in org.jets3t.service.multi.s3">S3ServiceEventListener</A> eventListener)</CODE>
<BR>
Upload one or more file-based objects to S3 as multipart uploads, where each
object's underlying file is split into parts based on the value of
<A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#maxPartSize"><CODE>maxPartSize</CODE></A>.</TD>
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<A NAME="MIN_PART_SIZE"><!-- --></A><H3>
MIN_PART_SIZE</H3>
<PRE>
public static final long <B>MIN_PART_SIZE</B></PRE>
<DL>
<DD>Minimum multipart upload part size supported by S3: 5 MB.
NOTE: This minimum size does not apply to the last part in a
multipart upload, which may be 1 byte or larger.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jets3t.service.utils.MultipartUtils.MIN_PART_SIZE">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="MAX_OBJECT_SIZE"><!-- --></A><H3>
MAX_OBJECT_SIZE</H3>
<PRE>
public static final long <B>MAX_OBJECT_SIZE</B></PRE>
<DL>
<DD>Maximum object size supported by S3: 5 GB
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jets3t.service.utils.MultipartUtils.MAX_OBJECT_SIZE">Constant Field Values</A></DL>
</DL>
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<A NAME="MultipartUtils(long)"><!-- --></A><H3>
MultipartUtils</H3>
<PRE>
public <B>MultipartUtils</B>(long maxPartSize)</PRE>
<DL>
<DL>
<DT><B>Parameters:</B><DD><CODE>maxPartSize</CODE> - the maximum size of objects that will be generated or upload by this instance,
must be between <A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MIN_PART_SIZE"><CODE>MIN_PART_SIZE</CODE></A> and <A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MAX_OBJECT_SIZE"><CODE>MAX_OBJECT_SIZE</CODE></A>.</DL>
</DL>
<HR>
<A NAME="MultipartUtils()"><!-- --></A><H3>
MultipartUtils</H3>
<PRE>
public <B>MultipartUtils</B>()</PRE>
<DL>
<DD>Use default value for maximum part size: <A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#MAX_OBJECT_SIZE"><CODE>MAX_OBJECT_SIZE</CODE></A>.
<P>
</DL>
<!-- ============ METHOD DETAIL ========== -->
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<A NAME="getMaxPartSize()"><!-- --></A><H3>
getMaxPartSize</H3>
<PRE>
public long <B>getMaxPartSize</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Returns:</B><DD>maximum part size as set in constructor.</DL>
</DD>
</DL>
<HR>
<A NAME="isFileLargerThanMaxPartSize(java.io.File)"><!-- --></A><H3>
isFileLargerThanMaxPartSize</H3>
<PRE>
public boolean <B>isFileLargerThanMaxPartSize</B>(<A HREF="/usr/share/doc/default-jdk-doc/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> file)</PRE>
<DL>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>file</CODE> -
<DT><B>Returns:</B><DD>true if the given file is larger than the maximum part size defined in this instances.</DL>
</DD>
</DL>
<HR>
<A NAME="splitFileIntoObjectsByMaxPartSize(java.lang.String, java.io.File)"><!-- --></A><H3>
splitFileIntoObjectsByMaxPartSize</H3>
<PRE>
public <A HREF="/usr/share/doc/default-jdk-doc/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../org/jets3t/service/model/S3Object.html" title="class in org.jets3t.service.model">S3Object</A>> <B>splitFileIntoObjectsByMaxPartSize</B>(<A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> objectKey,
<A HREF="/usr/share/doc/default-jdk-doc/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> file)
throws <A HREF="/usr/share/doc/default-jdk-doc/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A>,
<A HREF="/usr/share/doc/default-jdk-doc/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</A></PRE>
<DL>
<DD>Split the given file into objects such that no object has a size greater than
the defined maximum part size. Each object uses a
<A HREF="../../../../org/jets3t/service/io/SegmentedRepeatableFileInputStream.html" title="class in org.jets3t.service.io"><CODE>SegmentedRepeatableFileInputStream</CODE></A> input stream to manage its own
byte range within the underlying file.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>objectKey</CODE> - the object key name to apply to all objects returned by this method.<DD><CODE>file</CODE> - a file to split into multiple parts.
<DT><B>Returns:</B><DD>an ordered list of objects that can be uploaded as multipart parts to S3 to
re-constitute the given file in the service.
<DT><B>Throws:</B>
<DD><CODE><A HREF="/usr/share/doc/default-jdk-doc/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE>
<DD><CODE><A HREF="/usr/share/doc/default-jdk-doc/api/java/security/NoSuchAlgorithmException.html?is-external=true" title="class or interface in java.security">NoSuchAlgorithmException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="uploadObjects(java.lang.String, org.jets3t.service.S3Service, java.util.List, org.jets3t.service.multi.s3.S3ServiceEventListener)"><!-- --></A><H3>
uploadObjects</H3>
<PRE>
public void <B>uploadObjects</B>(<A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> bucketName,
<A HREF="../../../../org/jets3t/service/S3Service.html" title="class in org.jets3t.service">S3Service</A> s3Service,
<A HREF="/usr/share/doc/default-jdk-doc/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A><<A HREF="../../../../org/jets3t/service/model/StorageObject.html" title="class in org.jets3t.service.model">StorageObject</A>> objectsForMultipartUpload,
<A HREF="../../../../org/jets3t/service/multi/s3/S3ServiceEventListener.html" title="interface in org.jets3t.service.multi.s3">S3ServiceEventListener</A> eventListener)
throws <A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</A></PRE>
<DL>
<DD>Upload one or more file-based objects to S3 as multipart uploads, where each
object's underlying file is split into parts based on the value of
<A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#maxPartSize"><CODE>maxPartSize</CODE></A>.
Objects are uploaded in parallel using a <A HREF="../../../../org/jets3t/service/multi/s3/ThreadedS3Service.html" title="class in org.jets3t.service.multi.s3"><CODE>ThreadedS3Service</CODE></A> class
that is created within this method, so uploads will take place using as
many connections and threads as are configured in your service's
<A HREF="../../../../org/jets3t/service/Jets3tProperties.html" title="class in org.jets3t.service"><CODE>Jets3tProperties</CODE></A>.
This method can upload small files that don't need to be split into parts,
but because there is extra overhead in performing unnecessary multipart upload
operations you should avoid doing so unless it's really necessary.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bucketName</CODE> - the target bucket name<DD><CODE>s3Service</CODE> - the S3 service that will perform the work<DD><CODE>objectsForMultipartUpload</CODE> - a list of one or more objects that will be uploaded, potentially in multiple
parts if the object's underlying file is larger than <A HREF="../../../../org/jets3t/service/utils/MultipartUtils.html#maxPartSize"><CODE>maxPartSize</CODE></A><DD><CODE>eventListener</CODE> - an event listener to monitor progress event notifications, which should
recognize and handle error events. May be null, in which case a standard
<A HREF="../../../../org/jets3t/service/multi/s3/S3ServiceEventAdaptor.html" title="class in org.jets3t.service.multi.s3"><CODE>S3ServiceEventAdaptor</CODE></A> is used which won't report on events but will
throw an exception if there is a failure.
<DT><B>Throws:</B>
<DD><CODE><A HREF="/usr/share/doc/default-jdk-doc/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</A></CODE></DL>
</DD>
</DL>
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