org.glowroot.jvm.ProcessId Maven / Gradle / Ivy
/*
* Copyright 2013-2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.glowroot.jvm;
import java.lang.management.ManagementFactory;
import javax.annotation.Nullable;
import org.glowroot.shaded.google.common.annotations.VisibleForTesting;
import org.glowroot.shaded.slf4j.Logger;
import org.glowroot.shaded.slf4j.LoggerFactory;
class ProcessId {
private static final Logger logger = LoggerFactory.getLogger(ProcessId.class);
private ProcessId() {}
static @Nullable String getProcessId() {
return parseProcessId(ManagementFactory.getRuntimeMXBean().getName());
}
@VisibleForTesting
static @Nullable String parseProcessId(String runtimeName) {
int index = runtimeName.indexOf('@');
if (index > 0) {
String pid = runtimeName.substring(0, index);
try {
Long.parseLong(pid);
return pid;
} catch (NumberFormatException e) {
logger.debug(e.getMessage(), e);
return null;
}
} else {
return null;
}
}
}