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when crash logs (hs_err_pid*.log) are found, display them in the syst…
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javamelody-core/src/main/java/net/bull/javamelody/internal/model/HsErrPid.java
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| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * Copyright 2008-2017 by Emeric Vernat | ||
| * | ||
| * This file is part of Java Melody. | ||
| * | ||
| * 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 net.bull.javamelody.internal.model; | ||
|
|
||
| import java.io.File; | ||
| import java.io.FilenameFilter; | ||
| import java.io.Serializable; | ||
| import java.lang.management.ManagementFactory; | ||
| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.Comparator; | ||
| import java.util.Date; | ||
| import java.util.List; | ||
|
|
||
| /** | ||
| * HsErrPid files. | ||
| * @author Emeric Vernat | ||
| */ | ||
| public final class HsErrPid implements Serializable { | ||
| /** | ||
| * Comparateur de HsErrPid par date. | ||
| */ | ||
| static final class HsErrPidComparator implements Comparator<HsErrPid>, Serializable { | ||
| private static final long serialVersionUID = 1L; | ||
|
|
||
| /** {@inheritDoc} */ | ||
| @Override | ||
| public int compare(HsErrPid hsErrPid1, HsErrPid hsErrPid2) { | ||
| return hsErrPid2.getDate().compareTo(hsErrPid1.getDate()); | ||
| } | ||
| } | ||
|
|
||
| private static final String XX_ERROR_FILE = "-XX:ErrorFile="; | ||
|
|
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| private static final long serialVersionUID = 1L; | ||
|
|
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| private static final FilenameFilter FILENAME_FILTER = new FilenameFilter() { | ||
| @Override | ||
| public boolean accept(File dir, String name) { | ||
| return name.startsWith("hs_err_pid") && name.endsWith(".log"); | ||
| } | ||
| }; | ||
|
|
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| private final String file; | ||
|
|
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| private final Date date; | ||
|
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| private HsErrPid(String file, Date date) { | ||
| super(); | ||
| this.file = file; | ||
| this.date = date; | ||
| } | ||
|
|
||
| public static List<HsErrPid> buildHsErrPidList() { | ||
| final List<File> directories = new ArrayList<File>(); | ||
| // locations of fatal error log: | ||
| // http://www.oracle.com/technetwork/java/javase/felog-138657.html | ||
| directories.add(new File("./")); | ||
| // linux: | ||
| directories.add(new File("/tmp")); | ||
| // windows: | ||
| final String tmp = System.getenv("TMP"); | ||
| if (tmp != null) { | ||
| directories.add(new File(tmp)); | ||
| } | ||
| final List<String> args = ManagementFactory.getRuntimeMXBean().getInputArguments(); | ||
| for (final String arg : args) { | ||
| if (arg.startsWith(XX_ERROR_FILE)) { | ||
| final String errorFile = arg.substring(XX_ERROR_FILE.length()); | ||
| final File dir = new File(errorFile).getParentFile(); | ||
| if (dir != null) { | ||
| directories.add(dir); | ||
| } | ||
| } | ||
| } | ||
|
|
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| final List<HsErrPid> result = new ArrayList<HsErrPid>(); | ||
| for (final File dir : directories) { | ||
| final File[] files = dir.listFiles(FILENAME_FILTER); | ||
| if (files != null) { | ||
| for (final File file : files) { | ||
| result.add(new HsErrPid(file.getAbsolutePath(), new Date(file.lastModified()))); | ||
| } | ||
| } | ||
| } | ||
| return result; | ||
| } | ||
|
|
||
| public static List<HsErrPid> getHsErrPidList(List<JavaInformations> javaInformationsList) { | ||
| final List<HsErrPid> result = new ArrayList<HsErrPid>(); | ||
| for (final JavaInformations javaInformations : javaInformationsList) { | ||
| final List<HsErrPid> hsErrPidList = javaInformations.getHsErrPidList(); | ||
| if (hsErrPidList != null) { | ||
| result.addAll(hsErrPidList); | ||
| } | ||
| } | ||
| Collections.sort(result, new HsErrPidComparator()); | ||
| return result; | ||
| } | ||
|
|
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| public String getFile() { | ||
| return file; | ||
| } | ||
|
|
||
| public Date getDate() { | ||
| return date; | ||
| } | ||
| } |
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