93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
/*
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© Copyright IBM Corporation 2018, 2019
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// Package mqini provides information about queue managers
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package mqini
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import (
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"bufio"
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"errors"
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"os"
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"path/filepath"
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"strings"
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"github.com/ibm-messaging/mq-container/internal/command"
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)
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// QueueManager describe high-level configuration information for a queue manager
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type QueueManager struct {
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Name string
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Prefix string
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Directory string
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DataPath string
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InstallationName string
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}
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// getQueueManagerFromStanza parses a queue manager stanza
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func getQueueManagerFromStanza(stanza string) (*QueueManager, error) {
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scanner := bufio.NewScanner(strings.NewReader(stanza))
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qm := QueueManager{}
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for scanner.Scan() {
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l := scanner.Text()
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l = strings.TrimSpace(l)
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t := strings.Split(l, "=")
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switch t[0] {
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case "Name":
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qm.Name = t[1]
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case "Prefix":
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qm.Prefix = t[1]
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case "Directory":
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qm.Directory = t[1]
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case "DataPath":
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qm.DataPath = t[1]
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case "InstallationName":
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qm.InstallationName = t[1]
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}
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}
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return &qm, scanner.Err()
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}
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// GetQueueManager returns queue manager configuration information
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func GetQueueManager(name string) (*QueueManager, error) {
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_, err := os.Stat("/var/mqm/mqs.ini")
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if err != nil {
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// Don't run dspmqinf, which will generate an FDC if mqs.ini isn't there yet
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return nil, errors.New("dspmqinf should not be run before crtmqdir")
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}
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// dspmqinf essentially returns a subset of mqs.ini, but it's simpler to parse
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out, _, err := command.Run("dspmqinf", "-o", "stanza", name)
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if err != nil {
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return nil, err
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}
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return getQueueManagerFromStanza(out)
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}
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// GetErrorLogDirectory returns the directory holding the error logs for the
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// specified queue manager
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func GetErrorLogDirectory(qm *QueueManager) string {
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return filepath.Join(GetDataDirectory(qm), "errors")
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}
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// GetDataDirectory returns the data directory for the specified queue manager
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func GetDataDirectory(qm *QueueManager) string {
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if qm.DataPath != "" {
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// Data path has been set explicitly (e.g. for multi-instance queue manager)
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return qm.DataPath
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} else {
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return filepath.Join(qm.Prefix, "qmgrs", qm.Directory)
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}
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}
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