Package org.yaml.snakeyaml.composer

Class Composer

java.lang.Object

org.yaml.snakeyaml.composer.Composer

public class Composer
extends Object

Creates a node graph from parser events.

Corresponds to the 'Compose' step as described in chapter 3.1 of the YAML Specification.

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<String,Node>	anchors
private final CommentEventsCollector	blockCommentsCollector
private final CommentEventsCollector	inlineCommentsCollector
private final LoaderOptions	loadingConfig
private int	nestingDepth
private final int	nestingDepthLimit
private int	nonScalarAliasesCount
protected final Parser	parser
private final Set<Node>	recursiveNodes
private final Resolver	resolver

Constructor Summary

Constructors

Constructor	Description
Composer(Parser parser, Resolver resolver)
Composer(Parser parser, Resolver resolver, LoaderOptions loadingConfig)

Method Summary

Modifier and Type	Method	Description
boolean	checkNode()	Checks if further documents are available.
protected Node	composeKeyNode(MappingNode node)
protected void	composeMappingChildren(List<NodeTuple> children, MappingNode node)
protected Node	composeMappingNode(String anchor)
private Node	composeNode(Node parent)
protected Node	composeScalarNode(String anchor, List<CommentLine> blockComments)
protected Node	composeSequenceNode(String anchor)
protected Node	composeValueNode(MappingNode node)
private void	decreaseNestingDepth()	Indicate that the collection is finished and the nesting is decreased
Node	getNode()	Reads and composes the next document.
Node	getSingleNode()	Reads a document from a source that contains only one document.
private void	increaseNestingDepth()	Increase nesting depth and fail when it exceeds the denied limit

Methods inherited from class java.lang.Object

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

Field Details

parser

protected final Parser parser

resolver

private final Resolver resolver

anchors

private final Map<String,Node> anchors

recursiveNodes

private final Set<Node> recursiveNodes

nonScalarAliasesCount

private int nonScalarAliasesCount

loadingConfig

private final LoaderOptions loadingConfig

blockCommentsCollector

private final CommentEventsCollector blockCommentsCollector

inlineCommentsCollector

private final CommentEventsCollector inlineCommentsCollector

nestingDepth

private int nestingDepth

nestingDepthLimit

private final int nestingDepthLimit

Constructor Details

Composer

public Composer(Parser parser,
 Resolver resolver)

Composer

public Composer(Parser parser,
 Resolver resolver,
 LoaderOptions loadingConfig)

Method Details

checkNode

public boolean checkNode()

Checks if further documents are available.

Returns:

true if there is at least one more document.

getNode

public Node getNode()

Reads and composes the next document.

Returns:

The root node of the document or null if no more documents are available.

getSingleNode

public Node getSingleNode()

Reads a document from a source that contains only one document.

If the stream contains more than one document an exception is thrown.

Returns:

The root node of the document or null if no document is available.

composeNode

private Node composeNode(Node parent)

composeScalarNode

protected Node composeScalarNode(String anchor,
 List<CommentLine> blockComments)

composeSequenceNode

protected Node composeSequenceNode(String anchor)

composeMappingNode

protected Node composeMappingNode(String anchor)

composeMappingChildren

protected void composeMappingChildren(List<NodeTuple> children,
 MappingNode node)

composeKeyNode

protected Node composeKeyNode(MappingNode node)

composeValueNode

protected Node composeValueNode(MappingNode node)

increaseNestingDepth

private void increaseNestingDepth()

Increase nesting depth and fail when it exceeds the denied limit

decreaseNestingDepth

private void decreaseNestingDepth()

Indicate that the collection is finished and the nesting is decreased