org.rhq.enterprise.server.plugins.yum
Class Repodata

java.lang.Object
  org.rhq.enterprise.server.plugins.yum.Repodata

public class Repodata
extends java.lang.Object

The Repodata object is used to read yum metadata.

Author:

jortel

Field Summary

static org.jdom.Namespace	repons
static org.jdom.Namespace	rpmns
static org.jdom.Namespace	yumns Namespaces

Constructor Summary

Repodata(org.rhq.enterprise.server.plugins.yum.RepoReader reader)
Constructor.

Method Summary

void	clear() Clear caches.
org.jdom.Element	getMetadata(org.rhq.enterprise.server.plugins.yum.Repodata.Meta type) Get the node for the specified metadata type.
org.rhq.enterprise.server.plugins.yum.RepoReader	getReader() Get the object's reader.
org.jdom.Element	getRepomd() Get and parse the repo's repomd.xml file.
void	refresh() Refresh the repo's metadata.
static java.lang.String	toString(org.jdom.Element e) Utility for converting an XML fragment into a string.
java.lang.String	toString(org.rhq.enterprise.server.plugins.yum.Repodata.Meta type) A utility for getting an XML (string representation) for the specified metadata type.

Methods inherited from class java.lang.Object

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

Field Detail

yumns

public static final org.jdom.Namespace yumns

Namespaces

repons

public static final org.jdom.Namespace repons

rpmns

public static final org.jdom.Namespace rpmns

Constructor Detail

Repodata

public Repodata(org.rhq.enterprise.server.plugins.yum.RepoReader reader)

Constructor. Initializes the object and refreshes the metadata caches.

Parameters:

reader - An initialized reader used to access the repo.

See Also:

refresh().

Method Detail

refresh

public void refresh()
             throws java.lang.Exception

Refresh the repo's metadata.

1) Clear all cached data.

2) Read and process repomd.xml

Throws:

java.lang.Exception

clear

public void clear()

Clear caches.

getReader

public org.rhq.enterprise.server.plugins.yum.RepoReader getReader()

Get the object's reader.

Returns:

The object's reader.

getRepomd

public org.jdom.Element getRepomd()
                           throws java.lang.Exception

Get and parse the repo's repomd.xml file.

Returns:

The root repomd node.

Throws:

java.lang.Exception - On all errors.

getMetadata

public org.jdom.Element getMetadata(org.rhq.enterprise.server.plugins.yum.Repodata.Meta type)
                             throws java.lang.Exception

Get the node for the specified metadata type. The node is returned from the cache when already cached. Otherwise, it is read/parsed and stored in the cache.

Parameters:

type - A metadata type.

Returns:

The requested node.

Throws:

java.lang.Exception - On all errors.

toString

public java.lang.String toString(org.rhq.enterprise.server.plugins.yum.Repodata.Meta type)
                          throws java.lang.Exception

A utility for getting an XML (string representation) for the specified metadata type.

Parameters:

type - A type of metadata.

Returns:

A XML string.

Throws:

java.lang.Exception - On all errors.

toString

public static java.lang.String toString(org.jdom.Element e)

Utility for converting an XML fragment into a string.

Parameters:

e - An element to convert.

Returns:

A string representation of the specified element.