IBM ACE V12 Developer flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Integration server

An independent JVM in ACE V12 that hosts message flows and resources. It can run standalone or under an integration node. Each server has its own configuration file (server.conf.yaml).

Integration node

A logical grouping of integration servers managed by a single administration process. Provides shared configuration, a web UI, and centralized deployment. Created with mqsicreatebroker in V12.

Policy project

A project that stores environment-specific configuration as policies (MQ, HTTP, JDBC, etc.). Policies are referenced by policy sets and bindings, separating config from flow logic.

DFDL

Data Format Description Language, an XML schema-based language for describing non-XML data such as CSV, fixed-width, and binary. Used by ACE to parse and serialize text and binary formats.

ESQL CREATE COMPUTE MODULE

The ESQL statement that defines a compute module: CREATE COMPUTE MODULE name; CREATE FUNCTION main() RETURNS BOOLEAN BEGIN ... END; END MODULE; The main function must return TRUE.

ESQL PROPAGATE statement

Sends the current message assembly to a named terminal or label: PROPAGATE TO TERMINAL 'out1'; or PROPAGATE TO LABEL 'label1'. Used to implement routing inside ESQL.

ESQL REFERENCE variable

A variable that points to a field in the message tree without copying it. Declare with DECLARE ref REFERENCE TO OutputRoot.XMLNSC.Item[1]; use DEREFERENCE to access the value.

JavaCompute node

A message flow node that runs custom Java. The class extends MbComputeNode and overrides evaluate(MbMessageAssembly). Access trees via MbElement and create output with MbMessageAssembly.

Mapping node

The Graphical Data Mapper node that transforms between message models (XML, JSON, DFDL). Supports casts, if/else, assign, for-each, and join transforms in a visual map.

DFDL lengthKind delimited

A DFDL property that specifies fields are separated by delimiters (e.g., comma for CSV). Used with dfdl:separator and dfdl:terminator to parse variable-length text data.

XSLTransform node

A message flow node that applies an XSLT stylesheet to transform XML. Specify the stylesheet by name or file, and pass parameters via the node's stylesheet parameters table.

HTTPInput node

A message flow node that receives HTTP requests. Configure the path and method; use HTTPReply to return a response. Supports SSL and is the basis for REST APIs in ACE.

SOAPInput node

A message flow node that receives SOAP requests. Set the WSDL and operation mode; use SOAPReply for responses and SOAPFault for errors. Supports WS-Security via policy sets.

OpenAPI import

ACE can import an OpenAPI 2.0/3.0 document to generate a REST API skeleton. The generated application includes an HTTPInput flow and subflows per operation.

REST error handling

Use the Catch or Failure terminal on HTTPInput to return a JSON error body with an appropriate HTTP status code (400, 404, 500) via HTTPReply.

MQInput node

A message flow node that reads messages from an IBM MQ queue. Configure queue manager, queue name, and transaction mode. Supports MQMD and MQRFH2 headers.

SalesforceRequest node

A connector node for Salesforce. Configure a Salesforce policy with URL, credentials, and API version. Supports create, retrieve, update, delete, and query operations.

KafkaProducer node

A connector node that publishes messages to a Kafka topic. Configure bootstrap servers and topic; use a Kafka policy for SASL/SSL security.

RESTRequest node

A message flow node for outbound REST calls. Set URL, method, headers, and body. Use an HTTPRequest policy for SSL and authentication; parse responses with JSON or XMLNSC.

JMSInput node

A message flow node that receives JMS messages. Configure the JMS provider via a JMS policy or configurable service. Supports point-to-point and publish-subscribe.

server.conf.yaml

The configuration file for an integration server in ACE V12. It defines resource managers (MQ, JDBC), flow properties, logging, and security settings. Edited via YAML or mqsichangeproperties.

mqsichangeproperties command

Administration command to change node or server properties, e.g., -o ComIbmJVMManager -n jvmMinHeapSize -v 512. Use mqsireportproperties to view current values.

mqsideploy command

Deploys a BAR file to an integration server: mqsideploy <node> -e <server> -a <bar>. Use -m to set deployment mode (delta, full, add).

Integration API

A REST administration API for ACE, e.g., GET /apiv2/servers. Requires authentication. The web UI is available at https://host:port/ (default port 4414 for a node).

Event monitoring

A feature that publishes message flow events to an MQ topic or file. Enable with mqsichangeflowmonitoring; configure event sources (in, out, failure) and formats (XML, JSON).

Flow statistics

Performance counters for message flows, including message counts and processing times. Enable with mqsichangeflowstats -s on -e <server> -k <flow> -n advanced; view with mqsireportflowstats.

mqsireadlog command

Reads and formats integration node logs: mqsireadlog -i <node> -e <server> -o -f -b. Use mqsiformatlog to convert binary logs to text.

Flow exerciser

A Toolkit feature that sends test messages through a flow and visualizes the path. Enable Record and Trace to see the message journey and debug.

BIP messages

Error and informational messages from ACE, e.g., BIP2087 (server not running), BIP2110 (parser error), BIP2230 (error in flow). Look up codes in the documentation for troubleshooting.

BAR file

A Broker Archive file containing compiled message flows (.cmf), message models, maps, Java, and configurable properties. Created via Toolkit or mqsipackagebar; deployed with mqsideploy.

mqsipackagebar command

Creates a BAR file from a workspace: mqsipackagebar -a <bar> -w <workspace> -k <project> -y <application>. Use -r to include referenced libraries.

mqsiapplybaroverride command

Modifies configurable properties in a BAR file without rebuilding: mqsiapplybaroverride -b <bar> -k <flow> -m <key=value>. Use -p for policy overrides.