From e3c36a9c86def1d6692ae62b198fa7b3e32cadae Mon Sep 17 00:00:00 2001
From: "Jeb.Wang" <jeb.wannng@gmail.com>
Date: Tue, 10 Oct 2023 16:19:06 +0800
Subject: [PATCH] update

---
 CONTRIBUTING.md                               |  4 +-
 README.md                                     |  9 +++
 core/pom.xml                                  | 32 ++++++++
 .../distributedlock/DistributedLock.java      |  0
 .../hellooo/distributedlock/LockCallback.java |  0
 .../hellooo/distributedlock/LockContext.java  |  0
 .../hellooo/distributedlock/LockHandler.java  |  0
 .../hellooo/distributedlock/LockState.java    |  0
 .../hellooo/distributedlock/Reusable.java     |  0
 .../distributedlock/common/ArgChecker.java    |  0
 .../distributedlock/common/ClassUtils.java    |  0
 .../distributedlock/common/NetworkUtils.java  |  0
 .../distributedlock/common/ProcessUtils.java  |  0
 .../distributedlock/common/StringUtils.java   |  0
 .../distributedlock/config/LockOptions.java   |  0
 .../distributedlock/enums/Coordinator.java    |  0
 .../distributedlock/enums/LockType.java       |  0
 .../BuilderEssentialFieldNotSetException.java |  0
 .../GenericRuntimeLockException.java          |  0
 .../LockStateNotRemovedException.java         |  0
 .../exception/LockStateNotSetException.java   |  0
 .../LockStateRemoveExpiredException.java      |  0
 .../LockStateSetExpiredException.java         |  0
 .../impl/AbstractDistributedLock.java         |  0
 .../impl/LockCallbackFactory.java             |  0
 .../impl/LockStateBuilder.java                |  0
 .../impl/ReentrantDistributedLock.java        |  0
 .../impl/ReentrantDistributedLockBuilder.java |  0
 .../impl/redis/AbstractRemotingThread.java    |  0
 .../impl/redis/RedisLockCallback.java         |  0
 .../impl/redis/RedisLockHandler.java          |  0
 .../impl/redis/RedisLockState.java            |  0
 .../impl/redis/RemotingLeaseThread.java       |  0
 .../impl/redis/RemotingRetryLockThread.java   |  0
 .../distributedlock/common/ArgChecker.java    |  0
 .../common/NetworkUtilsTest.java              |  0
 .../common/ProcessUtilsTest.java              |  0
 .../common/StringUtilsTest.java               |  0
 .../impl/ReentrantDistributedLockTest.java    |  0
 .../impl/redis/RemotingLeaseThreadTest.java   |  0
 examples/pom.xml                              | 21 +++++
 .../MultiProcessMultiThreadContention.java    |  4 +
 .../SingleProcessMultiThreadContention.java   | 41 ++++++++++
 pom.xml                                       | 77 +++++++++++--------
 44 files changed, 153 insertions(+), 35 deletions(-)
 create mode 100644 core/pom.xml
 rename {src => core/src}/main/java/site/hellooo/distributedlock/DistributedLock.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/LockCallback.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/LockContext.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/LockHandler.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/LockState.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/Reusable.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/common/ArgChecker.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/common/ClassUtils.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/common/NetworkUtils.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/common/ProcessUtils.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/common/StringUtils.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/config/LockOptions.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/enums/Coordinator.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/enums/LockType.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/exception/BuilderEssentialFieldNotSetException.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/exception/GenericRuntimeLockException.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/exception/LockStateNotRemovedException.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/exception/LockStateNotSetException.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/exception/LockStateRemoveExpiredException.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/exception/LockStateSetExpiredException.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/AbstractDistributedLock.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/LockCallbackFactory.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/LockStateBuilder.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLock.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockBuilder.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/redis/AbstractRemotingThread.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/redis/RedisLockCallback.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/redis/RedisLockHandler.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/redis/RedisLockState.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThread.java (100%)
 rename {src => core/src}/main/java/site/hellooo/distributedlock/impl/redis/RemotingRetryLockThread.java (100%)
 rename {src => core/src}/test/java/site/hellooo/distributedlock/common/ArgChecker.java (100%)
 rename {src => core/src}/test/java/site/hellooo/distributedlock/common/NetworkUtilsTest.java (100%)
 rename {src => core/src}/test/java/site/hellooo/distributedlock/common/ProcessUtilsTest.java (100%)
 rename {src => core/src}/test/java/site/hellooo/distributedlock/common/StringUtilsTest.java (100%)
 rename {src => core/src}/test/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockTest.java (100%)
 rename {src => core/src}/test/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThreadTest.java (100%)
 create mode 100644 examples/pom.xml
 create mode 100644 examples/src/main/java/site/hellooo/distributedlock/examples/MultiProcessMultiThreadContention.java
 create mode 100644 examples/src/main/java/site/hellooo/distributedlock/examples/SingleProcessMultiThreadContention.java

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5a176f7..5589a5a 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,11 +4,11 @@ Hi there! We're thrilled that you'd like to contribute to this project. Your hel
 
 ## Submitting a pull request
 
-1. [Fork][fork] and clone the repository
+1. Fork and clone the repository
 2. Create a new branch: `git checkout -b my-branch-name`
 3. Make your change and remember to add tests
 4. Build the project locally and run local tests
-5. Push to your fork and [submit a pull request][pr]
+5. Push to your fork and submit a pull request
 6. Pat your self on the back and wait for your pull request to be reviewed and merged.
 
 Thanks for your contributing!
diff --git a/README.md b/README.md
index 5962787..0c77137 100644
--- a/README.md
+++ b/README.md
@@ -58,3 +58,12 @@ public class Main {
 }
 
 ```
+
+
+
+you can use it for study, or in your production environment if it met your requirement which is only single redis instance needed. 
+it is not recommended to use it in production environment if you need high availability, because it is not support redis cluster yet.
+
+jdk: 1.8
+
+
diff --git a/core/pom.xml b/core/pom.xml
new file mode 100644
index 0000000..acd90e2
--- /dev/null
+++ b/core/pom.xml
@@ -0,0 +1,32 @@
+<?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>site.hellooo</groupId>
+        <artifactId>halo-distributedlock</artifactId>
+        <version>${revision}</version>
+    </parent>
+
+    <artifactId>halo-distributedlock-core</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>redis.clients</groupId>
+            <artifactId>jedis</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+        </dependency>
+    </dependencies>
+</project>
diff --git a/src/main/java/site/hellooo/distributedlock/DistributedLock.java b/core/src/main/java/site/hellooo/distributedlock/DistributedLock.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/DistributedLock.java
rename to core/src/main/java/site/hellooo/distributedlock/DistributedLock.java
diff --git a/src/main/java/site/hellooo/distributedlock/LockCallback.java b/core/src/main/java/site/hellooo/distributedlock/LockCallback.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/LockCallback.java
rename to core/src/main/java/site/hellooo/distributedlock/LockCallback.java
diff --git a/src/main/java/site/hellooo/distributedlock/LockContext.java b/core/src/main/java/site/hellooo/distributedlock/LockContext.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/LockContext.java
rename to core/src/main/java/site/hellooo/distributedlock/LockContext.java
diff --git a/src/main/java/site/hellooo/distributedlock/LockHandler.java b/core/src/main/java/site/hellooo/distributedlock/LockHandler.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/LockHandler.java
rename to core/src/main/java/site/hellooo/distributedlock/LockHandler.java
diff --git a/src/main/java/site/hellooo/distributedlock/LockState.java b/core/src/main/java/site/hellooo/distributedlock/LockState.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/LockState.java
rename to core/src/main/java/site/hellooo/distributedlock/LockState.java
diff --git a/src/main/java/site/hellooo/distributedlock/Reusable.java b/core/src/main/java/site/hellooo/distributedlock/Reusable.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/Reusable.java
rename to core/src/main/java/site/hellooo/distributedlock/Reusable.java
diff --git a/src/main/java/site/hellooo/distributedlock/common/ArgChecker.java b/core/src/main/java/site/hellooo/distributedlock/common/ArgChecker.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/common/ArgChecker.java
rename to core/src/main/java/site/hellooo/distributedlock/common/ArgChecker.java
diff --git a/src/main/java/site/hellooo/distributedlock/common/ClassUtils.java b/core/src/main/java/site/hellooo/distributedlock/common/ClassUtils.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/common/ClassUtils.java
rename to core/src/main/java/site/hellooo/distributedlock/common/ClassUtils.java
diff --git a/src/main/java/site/hellooo/distributedlock/common/NetworkUtils.java b/core/src/main/java/site/hellooo/distributedlock/common/NetworkUtils.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/common/NetworkUtils.java
rename to core/src/main/java/site/hellooo/distributedlock/common/NetworkUtils.java
diff --git a/src/main/java/site/hellooo/distributedlock/common/ProcessUtils.java b/core/src/main/java/site/hellooo/distributedlock/common/ProcessUtils.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/common/ProcessUtils.java
rename to core/src/main/java/site/hellooo/distributedlock/common/ProcessUtils.java
diff --git a/src/main/java/site/hellooo/distributedlock/common/StringUtils.java b/core/src/main/java/site/hellooo/distributedlock/common/StringUtils.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/common/StringUtils.java
rename to core/src/main/java/site/hellooo/distributedlock/common/StringUtils.java
diff --git a/src/main/java/site/hellooo/distributedlock/config/LockOptions.java b/core/src/main/java/site/hellooo/distributedlock/config/LockOptions.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/config/LockOptions.java
rename to core/src/main/java/site/hellooo/distributedlock/config/LockOptions.java
diff --git a/src/main/java/site/hellooo/distributedlock/enums/Coordinator.java b/core/src/main/java/site/hellooo/distributedlock/enums/Coordinator.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/enums/Coordinator.java
rename to core/src/main/java/site/hellooo/distributedlock/enums/Coordinator.java
diff --git a/src/main/java/site/hellooo/distributedlock/enums/LockType.java b/core/src/main/java/site/hellooo/distributedlock/enums/LockType.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/enums/LockType.java
rename to core/src/main/java/site/hellooo/distributedlock/enums/LockType.java
diff --git a/src/main/java/site/hellooo/distributedlock/exception/BuilderEssentialFieldNotSetException.java b/core/src/main/java/site/hellooo/distributedlock/exception/BuilderEssentialFieldNotSetException.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/exception/BuilderEssentialFieldNotSetException.java
rename to core/src/main/java/site/hellooo/distributedlock/exception/BuilderEssentialFieldNotSetException.java
diff --git a/src/main/java/site/hellooo/distributedlock/exception/GenericRuntimeLockException.java b/core/src/main/java/site/hellooo/distributedlock/exception/GenericRuntimeLockException.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/exception/GenericRuntimeLockException.java
rename to core/src/main/java/site/hellooo/distributedlock/exception/GenericRuntimeLockException.java
diff --git a/src/main/java/site/hellooo/distributedlock/exception/LockStateNotRemovedException.java b/core/src/main/java/site/hellooo/distributedlock/exception/LockStateNotRemovedException.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/exception/LockStateNotRemovedException.java
rename to core/src/main/java/site/hellooo/distributedlock/exception/LockStateNotRemovedException.java
diff --git a/src/main/java/site/hellooo/distributedlock/exception/LockStateNotSetException.java b/core/src/main/java/site/hellooo/distributedlock/exception/LockStateNotSetException.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/exception/LockStateNotSetException.java
rename to core/src/main/java/site/hellooo/distributedlock/exception/LockStateNotSetException.java
diff --git a/src/main/java/site/hellooo/distributedlock/exception/LockStateRemoveExpiredException.java b/core/src/main/java/site/hellooo/distributedlock/exception/LockStateRemoveExpiredException.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/exception/LockStateRemoveExpiredException.java
rename to core/src/main/java/site/hellooo/distributedlock/exception/LockStateRemoveExpiredException.java
diff --git a/src/main/java/site/hellooo/distributedlock/exception/LockStateSetExpiredException.java b/core/src/main/java/site/hellooo/distributedlock/exception/LockStateSetExpiredException.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/exception/LockStateSetExpiredException.java
rename to core/src/main/java/site/hellooo/distributedlock/exception/LockStateSetExpiredException.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/AbstractDistributedLock.java b/core/src/main/java/site/hellooo/distributedlock/impl/AbstractDistributedLock.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/AbstractDistributedLock.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/AbstractDistributedLock.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/LockCallbackFactory.java b/core/src/main/java/site/hellooo/distributedlock/impl/LockCallbackFactory.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/LockCallbackFactory.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/LockCallbackFactory.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/LockStateBuilder.java b/core/src/main/java/site/hellooo/distributedlock/impl/LockStateBuilder.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/LockStateBuilder.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/LockStateBuilder.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLock.java b/core/src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLock.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLock.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLock.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockBuilder.java b/core/src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockBuilder.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockBuilder.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockBuilder.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/redis/AbstractRemotingThread.java b/core/src/main/java/site/hellooo/distributedlock/impl/redis/AbstractRemotingThread.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/redis/AbstractRemotingThread.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/redis/AbstractRemotingThread.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockCallback.java b/core/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockCallback.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockCallback.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockCallback.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockHandler.java b/core/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockHandler.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockHandler.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockHandler.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockState.java b/core/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockState.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockState.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/redis/RedisLockState.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThread.java b/core/src/main/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThread.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThread.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThread.java
diff --git a/src/main/java/site/hellooo/distributedlock/impl/redis/RemotingRetryLockThread.java b/core/src/main/java/site/hellooo/distributedlock/impl/redis/RemotingRetryLockThread.java
similarity index 100%
rename from src/main/java/site/hellooo/distributedlock/impl/redis/RemotingRetryLockThread.java
rename to core/src/main/java/site/hellooo/distributedlock/impl/redis/RemotingRetryLockThread.java
diff --git a/src/test/java/site/hellooo/distributedlock/common/ArgChecker.java b/core/src/test/java/site/hellooo/distributedlock/common/ArgChecker.java
similarity index 100%
rename from src/test/java/site/hellooo/distributedlock/common/ArgChecker.java
rename to core/src/test/java/site/hellooo/distributedlock/common/ArgChecker.java
diff --git a/src/test/java/site/hellooo/distributedlock/common/NetworkUtilsTest.java b/core/src/test/java/site/hellooo/distributedlock/common/NetworkUtilsTest.java
similarity index 100%
rename from src/test/java/site/hellooo/distributedlock/common/NetworkUtilsTest.java
rename to core/src/test/java/site/hellooo/distributedlock/common/NetworkUtilsTest.java
diff --git a/src/test/java/site/hellooo/distributedlock/common/ProcessUtilsTest.java b/core/src/test/java/site/hellooo/distributedlock/common/ProcessUtilsTest.java
similarity index 100%
rename from src/test/java/site/hellooo/distributedlock/common/ProcessUtilsTest.java
rename to core/src/test/java/site/hellooo/distributedlock/common/ProcessUtilsTest.java
diff --git a/src/test/java/site/hellooo/distributedlock/common/StringUtilsTest.java b/core/src/test/java/site/hellooo/distributedlock/common/StringUtilsTest.java
similarity index 100%
rename from src/test/java/site/hellooo/distributedlock/common/StringUtilsTest.java
rename to core/src/test/java/site/hellooo/distributedlock/common/StringUtilsTest.java
diff --git a/src/test/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockTest.java b/core/src/test/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockTest.java
similarity index 100%
rename from src/test/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockTest.java
rename to core/src/test/java/site/hellooo/distributedlock/impl/ReentrantDistributedLockTest.java
diff --git a/src/test/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThreadTest.java b/core/src/test/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThreadTest.java
similarity index 100%
rename from src/test/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThreadTest.java
rename to core/src/test/java/site/hellooo/distributedlock/impl/redis/RemotingLeaseThreadTest.java
diff --git a/examples/pom.xml b/examples/pom.xml
new file mode 100644
index 0000000..f465785
--- /dev/null
+++ b/examples/pom.xml
@@ -0,0 +1,21 @@
+<?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>site.hellooo</groupId>
+        <artifactId>halo-distributedlock</artifactId>
+        <version>${revision}</version>
+    </parent>
+
+    <artifactId>halo-distributedlock-examples</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>site.hellooo</groupId>
+            <artifactId>halo-distributedlock-core</artifactId>
+            <version>0.0.7-GA</version>
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file
diff --git a/examples/src/main/java/site/hellooo/distributedlock/examples/MultiProcessMultiThreadContention.java b/examples/src/main/java/site/hellooo/distributedlock/examples/MultiProcessMultiThreadContention.java
new file mode 100644
index 0000000..29a2f44
--- /dev/null
+++ b/examples/src/main/java/site/hellooo/distributedlock/examples/MultiProcessMultiThreadContention.java
@@ -0,0 +1,4 @@
+package site.hellooo.distributedlock.examples;
+
+public class MultiProcessMultiThreadContention {
+}
diff --git a/examples/src/main/java/site/hellooo/distributedlock/examples/SingleProcessMultiThreadContention.java b/examples/src/main/java/site/hellooo/distributedlock/examples/SingleProcessMultiThreadContention.java
new file mode 100644
index 0000000..0c2b97b
--- /dev/null
+++ b/examples/src/main/java/site/hellooo/distributedlock/examples/SingleProcessMultiThreadContention.java
@@ -0,0 +1,41 @@
+package site.hellooo.distributedlock.examples;
+
+import redis.clients.jedis.JedisPool;
+import site.hellooo.distributedlock.config.LockOptions;
+import site.hellooo.distributedlock.impl.ReentrantDistributedLock;
+import site.hellooo.distributedlock.impl.redis.RedisLockHandler;
+
+import java.util.concurrent.locks.Lock;
+
+public class SingleProcessMultiThreadContention {
+    public static void main(String[] args) {
+        LockOptions lockOptions = LockOptions.options()
+                .build();
+
+//        define the redis source
+        JedisPool pool = new JedisPool("localhost", 6379);
+        for (int i = 0; i < 1000; i++) {
+            final int threadNumber = i;
+            Thread thread = new Thread(() -> {
+                Thread.currentThread().setName("Thread " + threadNumber);
+// Thread.sleep(1);
+                // String world = jedis.get("hello");
+                // System.out.println("world= " + world);
+                try {
+                    Lock lock = new ReentrantDistributedLock(lockOptions, "my_lock", new RedisLockHandler(pool));
+//                        lock
+                    lock.lock();
+                    System.out.println("thread" + Thread.currentThread().getName() + " locked!");
+                    // Thread.sleep(1000);
+                    System.out.println("thread" + Thread.currentThread().getName() + " lock released!");
+//                        unlock
+                    lock.unlock();
+                    System.out.println("after thread" + Thread.currentThread().getName() + " lock released!");
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            });
+            thread.start();
+        }
+    }
+}
diff --git a/pom.xml b/pom.xml
index d96b279..f1de081 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,45 +4,56 @@
 
     <groupId>site.hellooo</groupId>
     <artifactId>halo-distributedlock</artifactId>
-    <version>0.0.6-GA</version>
+    <version>${revision}</version>
+    <packaging>pom</packaging>
+    <modules>
+        <module>core</module>
+    </modules>
 
     <properties>
+        <revision>0.0.7-GA</revision>
+
         <project.build.sourceEncoding>UTF8</project.build.sourceEncoding>
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
+
         <jedis.version>4.2.3</jedis.version>
         <junit.version>4.13.2</junit.version>
         <assertj-core.version>3.23.1</assertj-core.version>
         <mockito-core.version>4.6.1</mockito-core.version>
     </properties>
-    <dependencies>
-        <dependency>
-            <groupId>redis.clients</groupId>
-            <artifactId>jedis</artifactId>
-            <version>${jedis.version}</version>
-        </dependency>
-        <!-- test dependencies -->
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.13.2</version>
-            <scope>${junit.version}</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.assertj</groupId>
-            <artifactId>assertj-core</artifactId>
-            <version>${assertj-core.version}</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.mockito</groupId>
-            <artifactId>mockito-core</artifactId>
-            <version>${mockito-core.version}</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
 
-    <!-- 发布maven中央仓库所需数据 -->
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>redis.clients</groupId>
+                <artifactId>jedis</artifactId>
+                <version>${jedis.version}</version>
+            </dependency>
+
+            <!-- test dependencies -->
+            <dependency>
+                <groupId>junit</groupId>
+                <artifactId>junit</artifactId>
+                <version>${junit.version}</version>
+                <scope>test</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.assertj</groupId>
+                <artifactId>assertj-core</artifactId>
+                <version>${assertj-core.version}</version>
+                <scope>test</scope>
+            </dependency>
+            <dependency>
+                <groupId>org.mockito</groupId>
+                <artifactId>mockito-core</artifactId>
+                <version>${mockito-core.version}</version>
+                <scope>test</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <!-- metadata required for publishing to maven central repository -->
     <name>distributed-lock</name>
     <description>a simple but reliable distributed lock implementation</description>
     <url>https://github.com/hellooo-stack/halo-distributedlock</url>
@@ -66,7 +77,7 @@
     </developers>
     <distributionManagement>
         <snapshotRepository>
-            <!-- 对应settings.xml内配置的<server>下的id -->
+            <!-- the identifier corresponding to the <server> element in the settings.xml configuration -->
             <id>ossrh</id>
             <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
         </snapshotRepository>
@@ -80,7 +91,7 @@
             <id>release</id>
             <build>
                 <plugins>
-                    <!-- 生成源码 jar -->
+                    <!-- creating a jar for sourcecode -->
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-source-plugin</artifactId>
@@ -94,7 +105,7 @@
                             </execution>
                         </executions>
                     </plugin>
-                    <!-- 生成javadoc jar -->
+                    <!-- creating a doc jar for sourcecode -->
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-javadoc-plugin</artifactId>
@@ -108,7 +119,7 @@
                             </execution>
                         </executions>
                     </plugin>
-                    <!-- gpg 签名 -->
+                    <!-- gpg signature -->
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
@@ -123,7 +134,7 @@
                             </execution>
                         </executions>
                     </plugin>
-                    <!-- nexus 组件发布 -->
+                    <!-- nexus component publishing -->
                     <plugin>
                         <groupId>org.sonatype.plugins</groupId>
                         <artifactId>nexus-staging-maven-plugin</artifactId>