org.springframework.xd.dirt.stream.dsl

Class StreamConfigParser

java.lang.Object

org.springframework.xd.dirt.stream.dsl.StreamConfigParser

All Implemented Interfaces:

StreamLookupEnvironment

public class StreamConfigParser
extends java.lang.Object
implements StreamLookupEnvironment

Author:

Andy Clement

Constructor Summary

Constructors

Constructor and Description
StreamConfigParser(org.springframework.data.repository.CrudRepository<? extends BaseDefinition,java.lang.String> repository)

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isValidStreamName(java.lang.String streamname) Verify the supplied name is a valid stream name.
StreamNode	lookupStream(java.lang.String name) Look up a previously defined stream by name, returns the parsed AST for it.
StreamNode	parse(java.lang.String stream) Parse a stream definition without supplying the stream name up front.
StreamNode	parse(java.lang.String name, java.lang.String stream) Parse a stream definition.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamConfigParser

public StreamConfigParser(org.springframework.data.repository.CrudRepository<? extends BaseDefinition,java.lang.String> repository)

Method Detail

parse

public StreamNode parse(java.lang.String stream)

Parse a stream definition without supplying the stream name up front. The stream name may be embedded in the definition. For example: mystream = http | file

Returns:

the AST for the parsed stream

parse

public StreamNode parse(java.lang.String name,
               java.lang.String stream)

Parse a stream definition.

Returns:

the AST for the parsed stream

Throws:

StreamDefinitionException

isValidStreamName

public static boolean isValidStreamName(java.lang.String streamname)

Verify the supplied name is a valid stream name. Valid stream names must follow the same rules as java identifiers, with the additional option to use a hyphen ('-') after the first character.

Parameters:

streamname - the name to validate

Returns:

true if name is valid

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

lookupStream

public StreamNode lookupStream(java.lang.String name)

Description copied from interface: StreamLookupEnvironment

Look up a previously defined stream by name, returns the parsed AST for it.

Specified by:

lookupStream in interface StreamLookupEnvironment

Parameters:

name - name of the stream

Returns:

AST for the stream