com.google.gerrit.entities.ImmutableConfig Maven / Gradle / Ivy
// Copyright (C) 2021 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.entities;
import java.util.Set;
import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Config;
/**
* Immutable parsed representation of a {@link org.eclipse.jgit.lib.Config} that can be cached.
* Supports only a limited set of operations.
*/
public class ImmutableConfig {
public static final ImmutableConfig EMPTY = new ImmutableConfig("", new Config());
private final String stringCfg;
private final Config cfg;
private ImmutableConfig(String stringCfg, Config cfg) {
this.stringCfg = stringCfg;
this.cfg = cfg;
}
public static ImmutableConfig parse(String stringCfg) throws ConfigInvalidException {
Config cfg = new Config();
cfg.fromText(stringCfg);
return new ImmutableConfig(stringCfg, cfg);
}
/** Returns a mutable copy of this config. */
public Config mutableCopy() {
Config cfg = new Config();
try {
cfg.fromText(this.cfg.toText());
} catch (ConfigInvalidException e) {
// Can't happen as we used JGit to format that config.
throw new IllegalStateException(e);
}
return cfg;
}
/** See {@link Config#getSections()} */
public Set getSections() {
return cfg.getSections();
}
/** See {@link Config#getNames(String)} */
public Set getNames(String section) {
return cfg.getNames(section);
}
/** See {@link Config#getNames(String, String)} */
public Set getNames(String section, String subsection) {
return cfg.getNames(section, subsection);
}
/** See {@link Config#getStringList(String, String, String)} */
public String[] getStringList(String section, String subsection, String name) {
return cfg.getStringList(section, subsection, name);
}
/** See {@link Config#getSubsections(String)} */
public Set getSubsections(String section) {
return cfg.getSubsections(section);
}
@Override
public boolean equals(Object o) {
if (!(o instanceof ImmutableConfig)) {
return false;
}
return ((ImmutableConfig) o).stringCfg.equals(stringCfg);
}
@Override
public int hashCode() {
return stringCfg.hashCode();
}
}