org.apache.slider.providers.agent.application.metadata

Class AbstractMetainfoParser

java.lang.Object

org.apache.slider.providers.agent.application.metadata.AbstractMetainfoParser

Direct Known Subclasses:

AddonPackageMetainfoParser, MetainfoParser

public abstract class AbstractMetainfoParser
extends Object

This abstract class provide common functionality to parse metainfo.json for either master package or add on packages.

Field Summary

Fields

Modifier and Type	Field and Description
protected com.google.gson.Gson	gson
protected com.google.gson.GsonBuilder	gsonBuilder

Constructor Summary

Constructors

Constructor and Description
AbstractMetainfoParser()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	composeSchema(org.apache.commons.digester.Digester digester) Compose the schema for the metainfo
Metainfo	fromJsonStream(InputStream is) Parse metainfo from an IOStream
Metainfo	fromJsonString(String json) Convert from JSON
Metainfo	fromXmlStream(InputStream metainfoStream) Parse metainfo from an XML formatted IOStream
String	toJsonString(Metainfo metaInfo) Convert to a JSON string

Methods inherited from class java.lang.Object

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

Field Detail

gsonBuilder

protected final com.google.gson.GsonBuilder gsonBuilder

gson

protected final com.google.gson.Gson gson

Constructor Detail

AbstractMetainfoParser

public AbstractMetainfoParser()

Method Detail

toJsonString

public String toJsonString(Metainfo metaInfo)
                    throws IOException

Convert to a JSON string

Returns:

a JSON string description

Throws:

IOException - Problems mapping/writing the object

fromJsonString

public Metainfo fromJsonString(String json)
                        throws IOException

Convert from JSON

Parameters:

json - input

Returns:

the parsed JSON

Throws:

IOException - IO

fromJsonStream

public Metainfo fromJsonStream(InputStream is)
                        throws IOException

Parse metainfo from an IOStream

Parameters:

is -

Returns:

Throws:

IOException

fromXmlStream

public Metainfo fromXmlStream(InputStream metainfoStream)
                       throws IOException

Parse metainfo from an XML formatted IOStream

Parameters:

metainfoStream -

Returns:

Throws:

IOException

composeSchema

protected abstract void composeSchema(org.apache.commons.digester.Digester digester)

Compose the schema for the metainfo

Parameters:

Digester - - The Digester object we passed in to compose the schema

Throws:

IOException