Initial commit

.gitattributes

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+* text=auto
+*.java text eol=lf

.github/CODEOWNERS

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+* @HiveGamesOSS/chunker

.github/workflows/build.yml

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+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          cache: maven
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml
+
+      # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
+      - name: Update dependency graph
+        uses: advanced-security/maven-dependency-submission-action@f97a4078d80bca790cd68e93a88da11a056ac0a3

.github/workflows/publish.yml

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+# This workflow will build a package using Maven and then publish it to GitHub packages when a release is created
+# For more information see: https://github.com/actions/setup-java/blob/main/docs/advanced-usage.md#apache-maven-with-a-settings-path
+
+name: Publish Maven Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+          server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
+          settings-path: ${{ github.workspace }} # location for the settings.xml file
+
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml
+
+      - name: Publish to GitHub Packages Apache Maven
+        run: mvn deploy -s $GITHUB_WORKSPACE/settings.xml
+        env:
+          GITHUB_TOKEN: ${{ github.token }}

.gitignore

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+target/
+/var
+pom.xml.versionsBackup
+test-output/
+/atlassian-ide-plugin.x
+.idea
+.*.swp
+.*.swo
+leveldb-c
+*~
+*.swp
+.idea
+.idea/*
+*.iml
+*.ipr
+*.iws
+.DS_Store
+.scala_dependencies
+.project
+.classpath
+.settings
+eclipse-classes

CODE_OF_CONDUCT.md

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+# Microsoft Open Source Code of Conduct
+
+This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
+
+Resources:
+
+- [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/)
+- [Microsoft Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
+- Contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with questions or concerns
+- Employees can reach out at [aka.ms/opensource/moderation-support](https://aka.ms/opensource/moderation-support)

CONTRIBUTING.md

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+# Contributing to leveldb-mcpe-java
+
+Thanks for your interest in contributing to this repository.
+
+If you find a bug in Chunker or wish to request adding a feature please make a GitHub issue on the Chunker repository,
+searching first to ensure it doesn't exist already.
+
+We don't accept contributions currently for this repository though you are more than welcome to fork it and add your own
+contributions, you are also welcome to create an issue on our main Chunker repository referencing your changes for
+review.
+
+This project is maintained by Hive Games.

README.md

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+# LevelDB MCPE in Java
+
+This project is a fork of https://github.com/pcmind/leveldb aiming to implement the changes made
+in https://github.com/Mojang/leveldb-mcpe/ where relevant to allow the library to read MCPE.
+
+For more information see the original repository on use cases / API usage.
+
+Building
+--------
+
+**Requirements**
+
+- Git
+- Java 11 or higher
+- Maven
+
+**Steps**
+
+1. Clone this repository via `git clone git://github.com/HiveGamesOSS/leveldb-mcpe-java.git`.
+2. Build the project via `mvn clean install`.
+3. Obtain the library from `target/` folder.
+
+Library Usage
+--------
+
+You can use the following in your maven pom.xml:
+
+```xml
+
+<dependency>
+    <groupId>com.hivemc.leveldb</groupId>
+    <artifactId>leveldb</artifactId>
+    <version>1.0.0</version>
+</dependency>
+```
+
+```xml
+
+<dependency>
+    <groupId>com.hivemc.leveldb</groupId>
+    <artifactId>leveldb-api</artifactId>
+    <version>1.0.0</version>
+</dependency>
+```
+
+This library is aimed as a drop in replacement to the original fork https://github.com/pcmind/leveldb.
+
+License
+--------
+
+Details of the LICENSE can be found in the license.txt, this fork maintains the original license for all code and
+modifications.

SECURITY.md

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+## Security
+
+Hive Games takes the security of our software products and services seriously, which includes all source code
+repositories managed through our GitHub organizations.
+
+If you believe you have found a security vulnerability in any Hive Games repository which follows the MITRE.org
+definition of “a weakness in the computational logic (e.g., code) found in software and hardware components that, when
+exploited, results in a negative impact to confidentiality, integrity, OR availability. Mitigation of the
+vulnerabilities in this context typically involves coding changes but could also include specification changes or even
+specification deprecations (e.g., removal of affected protocols or functionality in their entirety).” MITRE.org CNA
+Rules 7.1, please report it to us as described below.
+
+## Reporting Security Issues
+
+**Please do not report security vulnerabilities through public GitHub issues.**
+
+Instead, please send email to [secure@hivemc.com](mailto:secure@hivemc.com).
+
+You should receive a response within 24 hours. If for some reason you do not, please follow up via email to ensure we
+received your original message.
+
+Please include the requested information listed below (as much as you can provide) to help us better understand the
+nature and scope of the possible issue:
+
+* Type of issue (e.g. buffer overflow, SQL injection, cross-site scripting, etc.)
+* Full paths of source file(s) related to the manifestation of the issue
+* The location of the affected source code (tag/branch/commit or direct URL)
+* Any special configuration required to reproduce the issue
+* Step-by-step instructions to reproduce the issue
+* Proof-of-concept or exploit code (if possible)
+* Impact of the issue, including how an attacker might exploit the issue
+
+This information will help us triage your report more quickly.
+
+## Preferred Languages
+
+We prefer all communications to be in English.

SUPPORT.md

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+# Support
+
+## How to file issues and get help
+
+This project does not allow issues / PRs, if you would like help with Chunker related issues please file an issue on our
+main repository referencing this project if needed.
+
+## Hive Games Support Policy
+
+Support for this project is limited to the Chunker scope.

leveldb-api/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.hivemc.leveldb</groupId>
+        <artifactId>leveldb-project</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>leveldb-api</artifactId>
+    <name>${project.artifactId}</name>
+    <description>High level Java API for LevelDB</description>
+
+    <properties>
+        <air.main.basedir>${project.parent.basedir}</air.main.basedir>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.testng</groupId>
+            <artifactId>testng</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

leveldb-api/src/main/java/org/iq80/leveldb/CompressionType.java

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+/*
+ * Copyright (C) 2011 the original author or authors.
+ * See the notice.md file distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * 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.iq80.leveldb;
+
+/**
+ * DB contents are stored in a set of blocks, each of which holds a
+ * sequence of key,value pairs.  Each block may be compressed before
+ * being stored in a file.  The following enum describes which
+ * compression method (if any) is used to compress a block.
+ */
+public enum CompressionType
+{
+    // NOTE: do not change the values of existing entries, as these are
+    // part of the persistent format on disk.
+    NONE(0x00),
+    SNAPPY(0x01),
+    // MCPE Compression Types
+    ZLIB(0x02),
+    ZLIB_RAW(0x04);
+
+    public static CompressionType getCompressionTypeByPersistentId(int persistentId)
+    {
+        for (CompressionType compressionType : CompressionType.values()) {
+            if (compressionType.persistentId == persistentId) {
+                return compressionType;
+            }
+        }
+        throw new IllegalArgumentException("Unknown persistentId " + persistentId);
+    }
+
+    private final int persistentId;
+
+    CompressionType(int persistentId)
+    {
+        this.persistentId = persistentId;
+    }
+
+    public int persistentId()
+    {
+        return persistentId;
+    }
+}