✨ add functions

Author: ccoderJava

pom.xml

@@ -12,6 +12,7 @@
         <module>summer-beans</module>
         <module>summer-validator</module>
         <module>summer-engines</module>
+        <module>summer-java-core</module>
     </modules>
 
     <properties>

summer-java-core/pom.xml

@@ -0,0 +1,20 @@
+<?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.dianpoint.summer</groupId>
+        <artifactId>summer</artifactId>
+        <version>0.1-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>summer-java-core</artifactId>
+
+    <properties>
+        <maven.compiler.source>23</maven.compiler.source>
+        <maven.compiler.target>23</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

summer-java-core/src/main/java/com/dianpoint/summer/Main.java

@@ -0,0 +1,23 @@
+package com.dianpoint.summer;
+
+/**
+ * @author: congccoder
+ * @email: congccoder@gmail.com | <a href="https://github.com/ccoderJava">github-homepage</a>
+ * @date: 2025/6/5 20:39
+ */
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    public static void main(String[] args) {
+        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+        // to see how IntelliJ IDEA suggests fixing it.
+        System.out.printf("Hello and welcome!");
+
+        for (int i = 1; i <= 5; i++) {
+            //TIP Press <shortcut actionId="Debug"/> to start debugging your code. We have set one <icon src="AllIcons.Debugger.Db_set_breakpoint"/> breakpoint
+            // for you, but you can always add more by pressing <shortcut actionId="ToggleLineBreakpoint"/>.
+            System.out.println("i = " + i);
+        }
+    }
+}

summer-java-core/src/main/java/com/dianpoint/summer/Wrapper.java

@@ -0,0 +1,25 @@
+package com.dianpoint.summer;
+
+/**
+ * @author: congccoder
+ * @email: congccoder@gmail.com | <a href="https://github.com/ccoderJava">github-homepage</a>
+ * @date: 2025/6/5 20:42
+ */
+
+public interface Wrapper {
+
+    <T> T unwrap(Class<T> type) throws IllegalArgumentException;
+
+    boolean isWrapperFor(Class<?> type);
+
+    static <T> T tryUnwrap(Object object, Class<T> type) {
+        if (object instanceof Wrapper) {
+            Wrapper wrapper = (Wrapper) object;
+            if (wrapper.isWrapperFor(type)) {
+                return wrapper.unwrap(type);
+            }
+        }
+        return null;
+    }
+
+}

summer-java-core/src/main/java/com/dianpoint/summer/lang/Predicates.java

@@ -0,0 +1,42 @@
+package com.dianpoint.summer.lang;
+
+import java.util.function.Predicate;
+
+/**
+ * @author: congccoder
+ * @email: congccoder@gmail.com | <a href="https://github.com/ccoderJava">github-homepage</a>
+ * @date: 2025/6/5 20:43
+ */
+
+public interface Predicates {
+
+    Predicate[] EMPTY_PREDICATE_ARRAY = new Predicate[0];
+
+
+    static <T> Predicate<T>[] emptyArray() {
+        return (Predicate<T>[]) EMPTY_PREDICATE_ARRAY;
+    }
+
+
+    /**
+     * {@link Predicate} always return <code>true</code>
+     *
+     * @param <T> the type to test
+     * @return <code>true</code>
+     */
+    static <T> Predicate<T> alwaysTrue() {
+        return e -> true;
+    }
+
+    /**
+     * {@link Predicate} always return <code>false</code>
+     *
+     * @param <T> the type to test
+     * @return <code>false</code>
+     */
+    static <T> Predicate<T> alwaysFalse() {
+        return e -> false;
+    }
+
+
+}

summer-java-core/src/main/java/com/dianpoint/summer/lang/Streams.java

@@ -0,0 +1,10 @@
+package com.dianpoint.summer.lang;
+
+/**
+ * @author: congccoder
+ * @email: congccoder@gmail.com | <a href="https://github.com/ccoderJava">github-homepage</a>
+ * @date: 2025/6/5 20:43
+ */
+
+public interface Streams {
+}

summer-java-core/src/main/java/com/dianpoint/summer/lang/ThrowableAction.java

@@ -0,0 +1,13 @@
+package com.dianpoint.summer.lang;
+
+/**
+ * @author: congccoder
+ * @email: congccoder@gmail.com | <a href="https://github.com/ccoderJava">github-homepage</a>
+ * @date: 2025/6/5 20:44
+ */
+
+@FunctionalInterface
+public interface ThrowableAction {
+
+    void execute() throws Throwable;
+}

summer-java-core/src/main/java/com/dianpoint/summer/lang/ThrowableSupplier.java

@@ -0,0 +1,13 @@
+package com.dianpoint.summer.lang;
+
+/**
+ * @author: congccoder
+ * @email: congccoder@gmail.com | <a href="https://github.com/ccoderJava">github-homepage</a>
+ * @date: 2025/6/5 20:44
+ */
+
+@FunctionalInterface
+public interface ThrowableSupplier<T> {
+
+    T get() throws Throwable;
+}