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// Copyright (C) 2013 The Android Open Source Project
//
// 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 com.google.gerrit.server.config;
import com.google.common.base.MoreObjects;
import com.google.common.base.Strings;
import com.google.common.collect.Iterables;
import com.google.gerrit.common.data.GroupReference;
import com.google.gerrit.server.git.ProjectConfig;
import com.google.gerrit.server.project.ProjectState;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Config;
public class PluginConfig {
private static final String PLUGIN = "plugin";
private final String pluginName;
private Config cfg;
private final ProjectConfig projectConfig;
public PluginConfig(String pluginName, Config cfg) {
this(pluginName, cfg, null);
}
public PluginConfig(String pluginName, Config cfg, ProjectConfig projectConfig) {
this.pluginName = pluginName;
this.cfg = cfg;
this.projectConfig = projectConfig;
}
PluginConfig withInheritance(ProjectState.Factory projectStateFactory) {
if (projectConfig == null) {
return this;
}
ProjectState state = projectStateFactory.create(projectConfig);
ProjectState parent = Iterables.getFirst(state.parents(), null);
if (parent != null) {
PluginConfig parentPluginConfig =
parent.getConfig().getPluginConfig(pluginName).withInheritance(projectStateFactory);
Set<String> allNames = cfg.getNames(PLUGIN, pluginName);
cfg = copyConfig(cfg);
for (String name : parentPluginConfig.cfg.getNames(PLUGIN, pluginName)) {
if (!allNames.contains(name)) {
List<String> values =
Arrays.asList(parentPluginConfig.cfg.getStringList(PLUGIN, pluginName, name));
for (String value : values) {
GroupReference groupRef =
parentPluginConfig.projectConfig.getGroup(GroupReference.extractGroupName(value));
if (groupRef != null) {
projectConfig.resolve(groupRef);
}
}
cfg.setStringList(PLUGIN, pluginName, name, values);
}
}
}
return this;
}
private static Config copyConfig(Config cfg) {
Config copiedCfg = new Config();
try {
copiedCfg.fromText(cfg.toText());
} catch (ConfigInvalidException e) {
// cannot happen
throw new IllegalStateException(e);
}
return copiedCfg;
}
public String getString(String name) {
return cfg.getString(PLUGIN, pluginName, name);
}
public String getString(String name, String defaultValue) {
if (defaultValue == null) {
return cfg.getString(PLUGIN, pluginName, name);
}
return MoreObjects.firstNonNull(cfg.getString(PLUGIN, pluginName, name), defaultValue);
}
public void setString(String name, String value) {
if (Strings.isNullOrEmpty(value)) {
cfg.unset(PLUGIN, pluginName, name);
} else {
cfg.setString(PLUGIN, pluginName, name, value);
}
}
public String[] getStringList(String name) {
return cfg.getStringList(PLUGIN, pluginName, name);
}
public void setStringList(String name, List<String> values) {
if (values == null || values.isEmpty()) {
cfg.unset(PLUGIN, pluginName, name);
} else {
cfg.setStringList(PLUGIN, pluginName, name, values);
}
}
public int getInt(String name, int defaultValue) {
return cfg.getInt(PLUGIN, pluginName, name, defaultValue);
}
public void setInt(String name, int value) {
cfg.setInt(PLUGIN, pluginName, name, value);
}
public long getLong(String name, long defaultValue) {
return cfg.getLong(PLUGIN, pluginName, name, defaultValue);
}
public void setLong(String name, long value) {
cfg.setLong(PLUGIN, pluginName, name, value);
}
public boolean getBoolean(String name, boolean defaultValue) {
return cfg.getBoolean(PLUGIN, pluginName, name, defaultValue);
}
public void setBoolean(String name, boolean value) {
cfg.setBoolean(PLUGIN, pluginName, name, value);
}
public <T extends Enum<?>> T getEnum(String name, T defaultValue) {
return cfg.getEnum(PLUGIN, pluginName, name, defaultValue);
}
public <T extends Enum<?>> void setEnum(String name, T value) {
cfg.setEnum(PLUGIN, pluginName, name, value);
}
public <T extends Enum<?>> T getEnum(T[] all, String name, T defaultValue) {
return cfg.getEnum(all, PLUGIN, pluginName, name, defaultValue);
}
public void unset(String name) {
cfg.unset(PLUGIN, pluginName, name);
}
public Set<String> getNames() {
return cfg.getNames(PLUGIN, pluginName, true);
}
public GroupReference getGroupReference(String name) {
return projectConfig.getGroup(GroupReference.extractGroupName(getString(name)));
}
public void setGroupReference(String name, GroupReference value) {
GroupReference groupRef = projectConfig.resolve(value);
setString(name, groupRef.toConfigValue());
}
}