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Merge pull request #55 from azarc-io/feature/add-context-creation-opt…
…ions Added MQ Connection Options to allow configuring of connection programatically
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,4 +1,5 @@ | ||
| // +build ignore+ | ||
| //go:build ignore | ||
| // +build ignore | ||
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| package main | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,11 @@ | ||
| package jms20subset | ||
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| import "github.com/ibm-messaging/mq-golang/v5/ibmmq" | ||
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| type MQOptions func(cno *ibmmq.MQCNO) | ||
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| func WithMaxMsgLength(maxMsgLength int32) MQOptions { | ||
| return func(cno *ibmmq.MQCNO) { | ||
| cno.ClientConn.MaxMsgLength = maxMsgLength | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,86 @@ | ||
| /* | ||
| * Copyright (c) IBM Corporation 2019 | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Eclipse Public License v. 2.0, which is available at | ||
| * http://www.eclipse.org/legal/epl-2.0. | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| */ | ||
| package main | ||
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| import ( | ||
| "github.com/ibm-messaging/mq-golang-jms20/jms20subset" | ||
| "github.com/ibm-messaging/mq-golang/v5/ibmmq" | ||
| "testing" | ||
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| "github.com/ibm-messaging/mq-golang-jms20/mqjms" | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
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| func TestMQConnectionOptions(t *testing.T) { | ||
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| t.Run("MaxMsgLength set on CreateContext", func(t *testing.T) { | ||
| // Loads CF parameters from connection_info.json and applicationApiKey.json in the Downloads directory | ||
| cf, cfErr := mqjms.CreateConnectionFactoryFromDefaultJSONFiles() | ||
| assert.Nil(t, cfErr) | ||
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| // Ensure that the options were applied when setting connection options on Context creation | ||
| msg := "options were not applied" | ||
| context, ctxErr := cf.CreateContext( | ||
| jms20subset.WithMaxMsgLength(2000), | ||
| func(cno *ibmmq.MQCNO) { | ||
| assert.Equal(t, int32(2000), cno.ClientConn.MaxMsgLength) | ||
| msg = "options applied" | ||
| }, | ||
| ) | ||
| assert.Nil(t, ctxErr) | ||
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| if context != nil { | ||
| defer context.Close() | ||
| } | ||
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| assert.Equal(t, "options applied", msg) | ||
| }) | ||
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| t.Run("MaxMsgLength is respected when receive message on CreateContextWithSessionMode", func(t *testing.T) { | ||
| // Loads CF parameters from connection_info.json and applicationApiKey.json in the Downloads directory | ||
| cf, cfErr := mqjms.CreateConnectionFactoryFromDefaultJSONFiles() | ||
| assert.Nil(t, cfErr) | ||
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| sContext, ctxErr := cf.CreateContext() | ||
| assert.Nil(t, ctxErr) | ||
| if sContext != nil { | ||
| defer sContext.Close() | ||
| } | ||
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| // Create a Queue object that points at an IBM MQ queue | ||
| sQueue := sContext.CreateQueue("DEV.QUEUE.1") | ||
| // Send a message to the queue that contains a large string | ||
| errSend := sContext.CreateProducer().SendString(sQueue, "This has more than data than the max message length") | ||
| assert.NoError(t, errSend) | ||
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| // create consumer with low msg length | ||
| rContext, ctxErr := cf.CreateContextWithSessionMode( | ||
| jms20subset.JMSContextAUTOACKNOWLEDGE, | ||
| jms20subset.WithMaxMsgLength(20), | ||
| ) | ||
| assert.Nil(t, ctxErr) | ||
| if rContext != nil { | ||
| defer rContext.Close() | ||
| } | ||
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| // Create a Queue object that points at an IBM MQ queue | ||
| rQueue := rContext.CreateQueue("DEV.QUEUE.1") | ||
| // Send a message to the queue that contains a large string | ||
| consumer, errSend := rContext.CreateConsumer(rQueue) | ||
| assert.NoError(t, errSend) | ||
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| // expect that receiving the message will cause an JMS Data Length error | ||
| _, err := consumer.ReceiveStringBodyNoWait() | ||
| assert.Error(t, err) | ||
| jmsErr, ok := err.(jms20subset.JMSExceptionImpl) | ||
| assert.True(t, ok) | ||
| assert.Equal(t, "MQRC_DATA_LENGTH_ERROR", jmsErr.GetReason()) | ||
| }) | ||
| } |
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