| /* |
| * Copyright (C) 2016, Google Inc. |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.eclipse.jgit.internal.ketch; |
| |
| import static java.util.concurrent.TimeUnit.DAYS; |
| import static java.util.concurrent.TimeUnit.HOURS; |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| import static java.util.concurrent.TimeUnit.MINUTES; |
| import static java.util.concurrent.TimeUnit.SECONDS; |
| import static org.eclipse.jgit.internal.ketch.KetchConstants.CONFIG_KEY_COMMIT; |
| import static org.eclipse.jgit.internal.ketch.KetchConstants.CONFIG_KEY_SPEED; |
| import static org.eclipse.jgit.internal.ketch.KetchConstants.CONFIG_KEY_TYPE; |
| import static org.eclipse.jgit.lib.ConfigConstants.CONFIG_KEY_REMOTE; |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.eclipse.jgit.internal.ketch.KetchReplica.CommitMethod; |
| import org.eclipse.jgit.internal.ketch.KetchReplica.CommitSpeed; |
| import org.eclipse.jgit.internal.ketch.KetchReplica.Participation; |
| import org.eclipse.jgit.lib.Config; |
| |
| /** |
| * Configures a {@link org.eclipse.jgit.internal.ketch.KetchReplica}. |
| */ |
| public class ReplicaConfig { |
| /** |
| * Read a configuration from a config block. |
| * |
| * @param cfg |
| * configuration to read. |
| * @param name |
| * of the replica being configured. |
| * @return replica configuration for {@code name}. |
| */ |
| public static ReplicaConfig newFromConfig(Config cfg, String name) { |
| return new ReplicaConfig().fromConfig(cfg, name); |
| } |
| |
| private Participation participation = Participation.FULL; |
| private CommitMethod commitMethod = CommitMethod.ALL_REFS; |
| private CommitSpeed commitSpeed = CommitSpeed.BATCHED; |
| private long minRetry = SECONDS.toMillis(5); |
| private long maxRetry = MINUTES.toMillis(1); |
| |
| /** |
| * Get participation of the replica in the system. |
| * |
| * @return participation of the replica in the system. |
| */ |
| public Participation getParticipation() { |
| return participation; |
| } |
| |
| /** |
| * Get how Ketch should apply committed changes. |
| * |
| * @return how Ketch should apply committed changes. |
| */ |
| public CommitMethod getCommitMethod() { |
| return commitMethod; |
| } |
| |
| /** |
| * Get how quickly should Ketch commit. |
| * |
| * @return how quickly should Ketch commit. |
| */ |
| public CommitSpeed getCommitSpeed() { |
| return commitSpeed; |
| } |
| |
| /** |
| * Returns the minimum wait delay before retrying a failure. |
| * |
| * @param unit |
| * to get retry delay in. |
| * @return minimum delay before retrying a failure. |
| */ |
| public long getMinRetry(TimeUnit unit) { |
| return unit.convert(minRetry, MILLISECONDS); |
| } |
| |
| /** |
| * Returns the maximum wait delay before retrying a failure. |
| * |
| * @param unit |
| * to get retry delay in. |
| * @return maximum delay before retrying a failure. |
| */ |
| public long getMaxRetry(TimeUnit unit) { |
| return unit.convert(maxRetry, MILLISECONDS); |
| } |
| |
| /** |
| * Update the configuration from a config block. |
| * |
| * @param cfg |
| * configuration to read. |
| * @param name |
| * of the replica being configured. |
| * @return {@code this} |
| */ |
| public ReplicaConfig fromConfig(Config cfg, String name) { |
| participation = cfg.getEnum( |
| CONFIG_KEY_REMOTE, name, CONFIG_KEY_TYPE, |
| participation); |
| commitMethod = cfg.getEnum( |
| CONFIG_KEY_REMOTE, name, CONFIG_KEY_COMMIT, |
| commitMethod); |
| commitSpeed = cfg.getEnum( |
| CONFIG_KEY_REMOTE, name, CONFIG_KEY_SPEED, |
| commitSpeed); |
| minRetry = getMillis(cfg, name, "ketch-minRetry", minRetry); //$NON-NLS-1$ |
| maxRetry = getMillis(cfg, name, "ketch-maxRetry", maxRetry); //$NON-NLS-1$ |
| return this; |
| } |
| |
| private static long getMillis(Config cfg, String name, String key, |
| long defaultValue) { |
| String valStr = cfg.getString(CONFIG_KEY_REMOTE, name, key); |
| if (valStr == null) { |
| return defaultValue; |
| } |
| |
| valStr = valStr.trim(); |
| if (valStr.isEmpty()) { |
| return defaultValue; |
| } |
| |
| Matcher m = UnitMap.PATTERN.matcher(valStr); |
| if (!m.matches()) { |
| return defaultValue; |
| } |
| |
| String digits = m.group(1); |
| String unitName = m.group(2).trim(); |
| TimeUnit unit = UnitMap.UNITS.get(unitName); |
| if (unit == null) { |
| return defaultValue; |
| } |
| |
| try { |
| if (digits.indexOf('.') == -1) { |
| return unit.toMillis(Long.parseLong(digits)); |
| } |
| |
| double val = Double.parseDouble(digits); |
| return (long) (val * unit.toMillis(1)); |
| } catch (NumberFormatException nfe) { |
| return defaultValue; |
| } |
| } |
| |
| static class UnitMap { |
| static final Pattern PATTERN = Pattern |
| .compile("^([1-9][0-9]*(?:\\.[0-9]*)?)\\s*(.*)$"); //$NON-NLS-1$ |
| |
| static final Map<String, TimeUnit> UNITS; |
| |
| static { |
| Map<String, TimeUnit> m = new HashMap<>(); |
| TimeUnit u = MILLISECONDS; |
| m.put("", u); //$NON-NLS-1$ |
| m.put("ms", u); //$NON-NLS-1$ |
| m.put("millis", u); //$NON-NLS-1$ |
| m.put("millisecond", u); //$NON-NLS-1$ |
| m.put("milliseconds", u); //$NON-NLS-1$ |
| |
| u = SECONDS; |
| m.put("s", u); //$NON-NLS-1$ |
| m.put("sec", u); //$NON-NLS-1$ |
| m.put("secs", u); //$NON-NLS-1$ |
| m.put("second", u); //$NON-NLS-1$ |
| m.put("seconds", u); //$NON-NLS-1$ |
| |
| u = MINUTES; |
| m.put("m", u); //$NON-NLS-1$ |
| m.put("min", u); //$NON-NLS-1$ |
| m.put("mins", u); //$NON-NLS-1$ |
| m.put("minute", u); //$NON-NLS-1$ |
| m.put("minutes", u); //$NON-NLS-1$ |
| |
| u = HOURS; |
| m.put("h", u); //$NON-NLS-1$ |
| m.put("hr", u); //$NON-NLS-1$ |
| m.put("hrs", u); //$NON-NLS-1$ |
| m.put("hour", u); //$NON-NLS-1$ |
| m.put("hours", u); //$NON-NLS-1$ |
| |
| u = DAYS; |
| m.put("d", u); //$NON-NLS-1$ |
| m.put("day", u); //$NON-NLS-1$ |
| m.put("days", u); //$NON-NLS-1$ |
| |
| UNITS = Collections.unmodifiableMap(m); |
| } |
| |
| private UnitMap() { |
| } |
| } |
| } |