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/*
* Copyright 2021 gitblit.com, Ingo Lafrenz
*
* 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.gitblit;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.SortedMap;
import java.util.TreeMap;
/**
* Simple class with the only purpose to save the realm file (users.conf) in
* a fast efficient manner. The JGit Config classes used previously caused
* a massive CPU hog if the users file got bigger than about 30000 lines.
*
* @author Ingo Lafrenz
*
*/
public class StoredUserConfig {
private final File realmFileCopy;
private SortedMap<String, Section> sections = new TreeMap<>();
public StoredUserConfig(File realmFileCopy) {
this.realmFileCopy = realmFileCopy;
}
public void setString(final String section, final String subsection, String name, String value) {
String key = generateKey(section, subsection);
Section s = sections.get(key);
if (s == null) {
s = new Section(section, subsection);
sections.put(key, s);
}
s.addEntry(name, value);
}
public void setBoolean(String section, String subsection, String name, boolean value) {
setString(section, subsection, name, String.valueOf(value));
}
public void setStringList(String section, String subsection, String name, List<String> list) {
for (String value : list) {
setString(section, subsection, name, value);
}
}
public void save() throws IOException {
try (FileWriter fileWriter = new FileWriter(realmFileCopy);
PrintWriter printWriter = new PrintWriter(fileWriter);) {
for (Map.Entry<String,Section> entry : sections.entrySet()) {
writeSection(printWriter, entry.getKey(), entry.getValue());
}
}
}
private static void writeSection(PrintWriter printWriter, String key, Section section) {
printWriter.printf("[%s \"%s\"]\n", section.getName(), section.getSubSection());
for (Entry entry : section.getEntries().values()) {
writeEntry(printWriter, entry.getKey(), entry.getValue());
}
}
private static void writeEntry(PrintWriter printWriter, String key, String value) {
printWriter.printf("\t%s = %s\n", key, escape(value));
}
private static String escape(String value) {
String fixedValue = '#' == value.charAt(0) ? "\"" + value + "\"" : value;
fixedValue = fixedValue.replace("\\", "\\\\");
return fixedValue;
}
private static String generateKey(String key, String subKey) {
return "k:" + key + "s:" + subKey;
}
private static class Section {
private final String name;
private final String subSection;
private final SortedMap<String, Entry> entries = new TreeMap<>();
public Section(String name, String subSection) {
this.name = name;
this.subSection = subSection;
}
public void addEntry(final String key, final String value) {
entries.put(generateKey(key, value), new Entry(key, value));
}
public String getName() {
return name;
}
public String getSubSection() {
return subSection;
}
public SortedMap<String, Entry> getEntries() {
return entries;
}
@Override
public int hashCode() {
return Objects.hash(name, subSection);
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Section other = (Section) obj;
return Objects.equals(name, other.name) && Objects.equals(subSection, other.subSection);
}
@Override
public String toString() {
return String.format("Section [name=%s, subSection=%s]", name, subSection);
}
}
private static class Entry {
private final String key;
private final String value;
public Entry(String key, String value) {
this.key = key;
this.value = value;
}
public String getKey() {
return key;
}
public String getValue() {
return value;
}
@Override
public int hashCode() {
return Objects.hash(key, value);
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Entry other = (Entry) obj;
return Objects.equals(key, other.key) && Objects.equals(value, other.value);
}
@Override
public String toString() {
return String.format("Entry [key=%s, value=%s]", key, value);
}
}
}
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