66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
/*
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Copyright 2021 Alibaba Group Holding Limited.
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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 process
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import (
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"fmt"
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"strings"
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gops "github.com/shirou/gopsutil/v3/process"
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)
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func isJavaProcess(proc *gops.Process, mainClass string) (bool, error) {
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name, err := proc.Name()
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if err != nil {
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return false, fmt.Errorf("unable to get process name: %w", err)
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}
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cmd, err := proc.Cmdline()
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if err != nil {
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return false, fmt.Errorf("unable to get process command line: %w", err)
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}
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return name == "java" && strings.Contains(cmd, mainClass), nil
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}
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func GetPidForJavaProcess(mainClass string) (int, error) {
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// Scan the process list
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procs, err := gops.Processes()
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if err != nil {
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return -1, fmt.Errorf("unable to list processes: %w", err)
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}
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for _, proc := range procs {
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if ok, err := isJavaProcess(proc, mainClass); err != nil {
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} else if ok {
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return int(proc.Pid), nil
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}
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}
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return -1, nil
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}
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func CheckJavaProcessOrFind(pid int, mainClass string) (int, error) {
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// Check the given pid
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proc, err := gops.NewProcess(int32(pid))
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if err == nil {
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if ok, _ := isJavaProcess(proc, mainClass); ok {
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return pid, nil
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}
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}
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return GetPidForJavaProcess(mainClass)
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}
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