org.apache.solr.core.Diagnostics Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.solr.core;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.invoke.MethodHandles;
import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
public class Diagnostics {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
public interface Callable {
public void call(Object... data); // data depends on the context
}
public static void call(Callable callable, Object... data) {
try {
callable.call(data);
} catch (Exception e) {
log.error("TEST HOOK EXCEPTION", e);
}
}
public static void logThreadDumps(String message) {
StringBuilder sb = new StringBuilder(32768);
if (message == null) message = "============ THREAD DUMP REQUESTED ============";
sb.append(message);
sb.append("\n");
ThreadInfo[] threads = ManagementFactory.getThreadMXBean().dumpAllThreads(true, true);
for (ThreadInfo info : threads) {
sb.append(info);
// sb.append("\n");
}
log.error(sb.toString());
}
}