org.rhq.enterprise.server.sync

Class ExportingInputStream

java.lang.Object

java.io.InputStream

org.rhq.enterprise.server.sync.ExportingInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class ExportingInputStream
extends InputStream

Reading from this input stream produces the export file in a lazy (and therefore memory efficient) manner.

Author:

Lukas Krejci

Constructor Summary

Constructors

Constructor and Description
ExportingInputStream(Set<Synchronizer<?,?>> synchronizers, Map<String,org.rhq.core.domain.sync.ExporterMessages> messagesPerExporter) Constructs a new exporting input stream with the default buffer size of 64KB that zips up the results.
ExportingInputStream(Set<Synchronizer<?,?>> synchronizers, Map<String,org.rhq.core.domain.sync.ExporterMessages> messagesPerExporter, int size, boolean zip) Constructs a new exporting input stream with the default buffer size of 64KB.

Method Summary

Methods

Modifier and Type	Method and Description
int	available()
void	close()
void	mark(int readlimit)
boolean	markSupported()
int	read()
int	read(byte[] b)
int	read(byte[] b, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExportingInputStream

public ExportingInputStream(Set<Synchronizer<?,?>> synchronizers,
                    Map<String,org.rhq.core.domain.sync.ExporterMessages> messagesPerExporter)
                     throws IOException

Constructs a new exporting input stream with the default buffer size of 64KB that zips up the results.

Throws:

IOException

See Also:

ExportingInputStream(Set, Map, int, boolean)

ExportingInputStream

public ExportingInputStream(Set<Synchronizer<?,?>> synchronizers,
                    Map<String,org.rhq.core.domain.sync.ExporterMessages> messagesPerExporter,
                    int size,
                    boolean zip)
                     throws IOException

Constructs a new exporting input stream with the default buffer size of 64KB.

Parameters:

synchronizers - the synchronizers to invoke when producing the export file

messagesPerExporter - a reference to a map of messages that the exporters will use to produce additional info about the export

size - the size in bytes of the intermediate buffer

zip - whether to zip the export data

Throws:

IOException - on failure

Method Detail

read

public int read()
         throws IOException

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

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

Overrides:

read in class InputStream

Throws:

IOException

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class InputStream

Throws:

IOException

mark

public void mark(int readlimit)

Overrides:

mark in class InputStream

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream