org.rhq.enterprise.server.sync
Class ExportingInputStream

java.lang.Object
  java.io.InputStream
      org.rhq.enterprise.server.sync.ExportingInputStream

All Implemented Interfaces:

Closeable

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

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

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

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