Package pl.wrzasq.lambda.macro.lambda.function.template

Class ProcessedTemplate

java.lang.Object

pl.wrzasq.lambda.macro.lambda.function.template.ProcessedTemplate

All Implemented Interfaces:

pl.wrzasq.commons.aws.cloudformation.macro.TemplateDefinition

public class ProcessedTemplate
extends Object
implements pl.wrzasq.commons.aws.cloudformation.macro.TemplateDefinition

Contains template structure with handled resources references.

Field Summary

Fields

Modifier and Type	Field	Description
private static org.slf4j.Logger	logger	Logger.
private static com.fasterxml.jackson.databind.ObjectMapper	objectMapper	Values converter.
private Map<String,LambdaFunctionResource>	resources	Mapping of handled resources.
private Map<String,Object>	template	Template structure.

Constructor Summary

Constructors

Constructor	Description
ProcessedTemplate(Map<String,Object> input)	Template initializer.

Method Summary

Modifier and Type	Method	Description
private Map<String,Object>	createResource(String key, Map<String,Object> properties, String mode)	Creates our custom resource in place of virtual one.
private Map<String,Object>	createResources(Map<String,Object> input)	Finds our custom resources and creates a replacements.
Map<String,Object>	getTemplate()	Template structure.
private Map<String,Object>	replaceDependencies(Map<String,Object> resources)	Handles DependsOn clauses.
private Object	replaceDependenciesIn(Object dependsOn)	Handles DependsOn clause of single resource.
private Map<String,Object>	replaceReferences(Map<String,Object> input)	Replaces references to virtual resources.
private String	resolveDependency(String dependency)	Tries to resolve dependencies against lambda functions.

Methods inherited from class java.lang.Object

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

Field Detail

objectMapper

private static com.fasterxml.jackson.databind.ObjectMapper objectMapper

Values converter.

logger

private static org.slf4j.Logger logger

Logger.

resources

private Map<String,LambdaFunctionResource> resources

Mapping of handled resources.

template

private Map<String,Object> template

Template structure.

Constructor Detail

ProcessedTemplate

public ProcessedTemplate(Map<String,Object> input)

Template initializer.

Parameters:

input - Initial template structure.

Method Detail

createResources

private Map<String,Object> createResources(Map<String,Object> input)

Finds our custom resources and creates a replacements.

Parameters:

input - Initial template structure.

Returns:

Template state after processing.

createResource

private Map<String,Object> createResource(String key,
                                                Map<String,Object> properties,
                                                String mode)

Creates our custom resource in place of virtual one.

Parameters:

key - Resource logical ID.

properties - Resource initial properties.

mode - Resource mode (`Lambda` or `Serverless`).

Returns:

Physical resources definitions.

replaceReferences

private Map<String,Object> replaceReferences(Map<String,Object> input)

Replaces references to virtual resources.

Parameters:

input - Input template structure.

Returns:

Template state after processing.

replaceDependencies

private Map<String,Object> replaceDependencies(Map<String,Object> resources)

Handles DependsOn clauses.

Parameters:

resources - Resources section.

Returns:

New clause value.

replaceDependenciesIn

private Object replaceDependenciesIn(Object dependsOn)

Handles DependsOn clause of single resource.

Parameters:

dependsOn - Depends on clause.

Returns:

Computed new DependsOn clause.

resolveDependency

private String resolveDependency(String dependency)

Tries to resolve dependencies against lambda functions.

Effective dependency will be LogGroup, to ensure no Lambda execution happens before log group creation.

Parameters:

dependency - Source dependency ID.

Returns:

Resolved dependency ID.

getTemplate

public Map<String,Object> getTemplate()

Template structure.

Specified by:

getTemplate in interface pl.wrzasq.commons.aws.cloudformation.macro.TemplateDefinition