-
Notifications
You must be signed in to change notification settings - Fork 109
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[LOGMGR-30] Add ability to compress files when rotated if the suffix …
…ends with .zip or .gz.
- Loading branch information
Showing
8 changed files
with
529 additions
and
83 deletions.
There are no files selected for viewing
252 changes: 252 additions & 0 deletions
252
src/main/java/org/jboss/logmanager/handlers/FileRotator.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,252 @@ | ||
| /* | ||
| * JBoss, Home of Professional Open Source. | ||
| * | ||
| * Copyright 2017 Red Hat, Inc., and individual contributors | ||
| * as indicated by the @author tags. | ||
| * | ||
| * 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.jboss.logmanager.handlers; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.nio.file.StandardCopyOption; | ||
| import java.text.SimpleDateFormat; | ||
| import java.util.Date; | ||
| import java.util.Locale; | ||
| import java.util.zip.GZIPOutputStream; | ||
| import java.util.zip.ZipEntry; | ||
| import java.util.zip.ZipOutputStream; | ||
|
|
||
| /** | ||
| * Represents a suffix used for rotating files. | ||
| * | ||
| * @author <a href="mailto:jperkins@redhat.com">James R. Perkins</a> | ||
| */ | ||
| class FileRotator { | ||
|
|
||
| /** | ||
| * The compression type for the rotation | ||
| */ | ||
| public enum CompressionType { | ||
| NONE, | ||
| GZIP, | ||
| ZIP | ||
| } | ||
|
|
||
| /** | ||
| * An empty rotation suffix. | ||
| */ | ||
| static final FileRotator EMPTY = new FileRotator("", "", "", CompressionType.NONE); | ||
|
|
||
| private final String originalSuffix; | ||
| private final String datePattern; | ||
| private final SimpleDateFormat formatter; | ||
| private final String compressionSuffix; | ||
| private final CompressionType compressionType; | ||
|
|
||
| private FileRotator(final String originalSuffix, final String datePattern, final String compressionSuffix, final CompressionType compressionType) { | ||
| this.originalSuffix = originalSuffix; | ||
| this.datePattern = datePattern; | ||
| this.compressionSuffix = compressionSuffix; | ||
| this.compressionType = compressionType; | ||
| if (datePattern.isEmpty()) { | ||
| formatter = null; | ||
| } else { | ||
| formatter = new SimpleDateFormat(datePattern); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Parses a suffix into possible parts. | ||
| * | ||
| * @param suffix the suffix to parse | ||
| * | ||
| * @return the rotation suffix representation | ||
| */ | ||
| static FileRotator parse(final String suffix) { | ||
| if (suffix == null || suffix.isEmpty()) { | ||
| return EMPTY; | ||
| } | ||
| // Check the if the suffix contains a compression suffix | ||
| String compressionSuffix = ""; | ||
| String datePattern = ""; | ||
| CompressionType compressionType = CompressionType.NONE; | ||
| final String lSuffix = suffix.toLowerCase(Locale.ROOT); | ||
| int compressionIndex = lSuffix.indexOf(".gz"); | ||
| if (compressionIndex != -1) { | ||
| compressionSuffix = suffix.substring(compressionIndex); | ||
| datePattern = suffix.substring(0, compressionIndex); | ||
| compressionType = FileRotator.CompressionType.GZIP; | ||
| } else { | ||
| compressionIndex = lSuffix.indexOf(".zip"); | ||
| if (compressionIndex != -1) { | ||
| compressionSuffix = suffix.substring(compressionIndex); | ||
| datePattern = suffix.substring(0, compressionIndex); | ||
| compressionType = FileRotator.CompressionType.ZIP; | ||
| } | ||
| } | ||
| if (compressionSuffix.isEmpty() && datePattern.isEmpty()) { | ||
| return new FileRotator(suffix, suffix, "", CompressionType.NONE); | ||
| } | ||
| return new FileRotator(suffix, datePattern, compressionSuffix, compressionType); | ||
| } | ||
|
|
||
| /** | ||
| * The {@linkplain java.text.SimpleDateFormat date format pattern} for the suffix or an empty | ||
| * {@linkplain String string}. | ||
| * | ||
| * @return the date pattern or an empty string | ||
| */ | ||
| String getDatePattern() { | ||
| return datePattern; | ||
| } | ||
|
|
||
| /** | ||
| * The compression suffix or an empty {@linkplain String string} | ||
| * | ||
| * @return the compression suffix or an empty string | ||
| */ | ||
| @SuppressWarnings("unused") | ||
| String getCompressionSuffix() { | ||
| return compressionSuffix; | ||
| } | ||
|
|
||
| /** | ||
| * The compression type. | ||
| * | ||
| * @return the compression type | ||
| */ | ||
| @SuppressWarnings("unused") | ||
| CompressionType getCompressionType() { | ||
| return compressionType; | ||
| } | ||
|
|
||
| /** | ||
| * Rotates the file to a new file appending the suffix to the target. | ||
| * <p> | ||
| * The compression suffix will automatically be appended to target file if compression is being used. If compression | ||
| * is not being used the file is just moved replacing the target file if it already exists. | ||
| * </p> | ||
| * | ||
| * @param source the file to be rotated | ||
| * @param suffix the suffix to append to the rotated file. | ||
| * | ||
| * @throws IOException if an error occurs rotating the file | ||
| */ | ||
| void rotate(final Path source, final String suffix) throws IOException { | ||
| final Path target = Paths.get(source + suffix + compressionSuffix); | ||
| if (compressionType == CompressionType.GZIP) { | ||
| archiveGzip(source, target); | ||
| } else if (compressionType == CompressionType.ZIP) { | ||
| archiveZip(source, target); | ||
| } else { | ||
| Files.move(source, target, StandardCopyOption.REPLACE_EXISTING); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Rotates the file to a new file appending the suffix to the target. If a date suffix was specified the suffix | ||
| * will be added before the index or compression suffix. The current date will be used for the suffix. | ||
| * <p> | ||
| * If the {@code maxBackupIndex} is greater than 0 previously rotated files will be moved to an numerically | ||
| * incremented target. The compression suffix, if required, will be appended to this indexed file name. | ||
| * </p> | ||
| * | ||
| * @param source the file to be rotated | ||
| * @param maxBackupIndex the number of backups to keep | ||
| * | ||
| * @throws IOException if an error occurs rotating the file | ||
| */ | ||
| void rotate(final Path source, final int maxBackupIndex) throws IOException { | ||
| if (formatter == null) { | ||
| rotate(source, "", maxBackupIndex); | ||
| } else { | ||
| final String suffix; | ||
| synchronized (formatter) { | ||
| suffix = formatter.format(new Date()); | ||
| } | ||
| rotate(source, suffix, maxBackupIndex); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Rotates the file to a new file appending the suffix to the target. | ||
| * <p> | ||
| * If the {@code maxBackupIndex} is greater than 0 previously rotated files will be moved to an numerically | ||
| * incremented target. The compression suffix, if required, will be appended to this indexed file name. | ||
| * </p> | ||
| * | ||
| * @param source the file to be rotated | ||
| * @param suffix the optional suffix to append to the file before the index and optional compression suffix | ||
| * @param maxBackupIndex the number of backups to keep | ||
| * | ||
| * @throws IOException if an error occurs rotating the file | ||
| */ | ||
| void rotate(final Path source, final String suffix, final int maxBackupIndex) throws IOException { | ||
| if (maxBackupIndex > 0) { | ||
| final String rotationSuffix = (suffix == null ? "" : suffix); | ||
| final String fileWithSuffix = source.toAbsolutePath() + rotationSuffix; | ||
| Files.deleteIfExists(Paths.get(fileWithSuffix + "." + maxBackupIndex + compressionSuffix)); | ||
| for (int i = maxBackupIndex - 1; i >= 1; i--) { | ||
| final Path src = Paths.get(fileWithSuffix + "." + i + compressionSuffix); | ||
| if (Files.exists(src)) { | ||
| final Path target = Paths.get(fileWithSuffix + "." + (i + 1) + compressionSuffix); | ||
| Files.move(src, target, StandardCopyOption.REPLACE_EXISTING); | ||
| } | ||
| } | ||
| rotate(source, rotationSuffix + ".1"); | ||
| } else if (suffix != null && !suffix.isEmpty()) { | ||
| rotate(source, suffix); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() { | ||
| return originalSuffix; | ||
| } | ||
|
|
||
|
|
||
| private static void archiveGzip(final Path source, final Path target) throws IOException { | ||
| final byte[] buff = new byte[512]; | ||
| try (final GZIPOutputStream out = new GZIPOutputStream(Files.newOutputStream(target), true)) { | ||
| try (final InputStream in = Files.newInputStream(source)) { | ||
| int len; | ||
| while ((len = in.read(buff)) != -1) { | ||
| out.write(buff, 0, len); | ||
| } | ||
| } | ||
| out.finish(); | ||
| } | ||
| } | ||
|
|
||
| private static void archiveZip(final Path source, final Path target) throws IOException { | ||
| final byte[] buff = new byte[512]; | ||
| try (final ZipOutputStream out = new ZipOutputStream(Files.newOutputStream(target), StandardCharsets.UTF_8)) { | ||
| final ZipEntry entry = new ZipEntry(source.getFileName().toString()); | ||
| out.putNextEntry(entry); | ||
| try (final InputStream in = Files.newInputStream(source)) { | ||
| int len; | ||
| while ((len = in.read(buff)) != -1) { | ||
| out.write(buff, 0, len); | ||
| } | ||
| } | ||
| out.closeEntry(); | ||
| } | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.