init some interface

.gitignore

@@ -22,3 +22,12 @@
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*
+
+.idea
+*.iml
+*.DS_store
+out
+gen
+target/
+db/
+

README.md

@@ -1,2 +1,7 @@
 # easyByte
 Helps you manipulate bytes more easily
+
+
+1 .支持基本类型的append
+2. 支持对象的append 
+3. 支持集合append

easyByte-core/pom.xml

@@ -0,0 +1,13 @@
+<?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>
+
+    <groupId>org.example</groupId>
+    <artifactId>easyByte-core</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+
+
+</project>

easyByte-core/src/main/java/org/gongxuanzhang/easybyte/core/ByteConvert.java

@@ -0,0 +1,18 @@
+package org.gongxuanzhang.easybyte.core;
+
+/**
+ * @author gxz [email protected]
+ **/
+@FunctionalInterface
+public interface ByteConvert<V> {
+
+    /**
+     * convert sth to byte array
+     *
+     * @param v can convert value
+     * @return byte array not null ,may be length is zero
+     **/
+    byte[] toBytes(V v);
+
+
+}

easyByte-core/src/main/java/org/gongxuanzhang/easybyte/core/ByteWrapper.java

@@ -0,0 +1,15 @@
+package org.gongxuanzhang.easybyte.core;
+
+/**
+ * @author gxz [email protected]
+ **/
+@FunctionalInterface
+public interface ByteWrapper {
+
+    /**
+     * serialize my self
+     *
+     * @return byte array not null,may be length is zero
+     **/
+    byte[] toBytes();
+}

easyByte-core/src/main/java/org/gongxuanzhang/easybyte/core/DynamicByteBuffer.java

@@ -0,0 +1,101 @@
+package org.gongxuanzhang.easybyte.core;
+
+import org.gongxuanzhang.easybyte.core.exception.WrapperNotFoundException;
+
+import java.util.Collection;
+
+/**
+ * @author gxz [email protected]
+ **/
+public interface DynamicByteBuffer {
+
+
+    /**
+     * put a byte
+     *
+     * @param b a byte
+     * @return this
+     **/
+    DynamicByteBuffer put(byte b);
+
+    /**
+     * put a short
+     *
+     * @param s a short
+     * @return this
+     **/
+    DynamicByteBuffer putShort(short s);
+
+    /**
+     * put a int
+     *
+     * @param i a int
+     * @return this
+     **/
+    DynamicByteBuffer putInt(int i);
+
+
+    /**
+     * put a long
+     *
+     * @param l a long
+     * @return this
+     **/
+    DynamicByteBuffer putLong(long l);
+
+    /**
+     * put a float
+     *
+     * @param f a float
+     * @return this
+     **/
+    DynamicByteBuffer putFloat(float f);
+
+    /**
+     * put a double
+     *
+     * @param d a double
+     * @return this
+     **/
+    DynamicByteBuffer putDouble(double d);
+
+    /**
+     * put a char
+     *
+     * @param c a char
+     * @return this
+     **/
+    DynamicByteBuffer putChar(char c);
+
+    /**
+     * put a boolean
+     *
+     * @param bool a boolean
+     * @return this
+     **/
+    DynamicByteBuffer putBoolean(boolean bool);
+
+
+    /**
+     * put a collection
+     * the order of puts depends on the order of traversal
+     * item in collection will converted to byte array for put buffer
+     * primitive type and packing type will invoke corresponding method
+     * reference type will find convert or wrapper to invoke method
+     * if neither convert nor wrapper can be found,an {@link WrapperNotFoundException} will be throw
+     *
+     * @param collection use for put
+     * @return this
+     **/
+    DynamicByteBuffer putCollection(Collection<?> collection);
+
+    /**
+     * specify a converter to convert item
+     * {@link this#putCollection(Collection)}
+     *
+     * @param collection a collection
+     * @param convert    specify convert
+     * @return this
+     **/
+    <V> DynamicByteBuffer putCollection(Collection<V> collection, ByteConvert<V> convert);
+}

easyByte-core/src/main/java/org/gongxuanzhang/easybyte/core/EasyByteConguration.java

@@ -0,0 +1,13 @@
+package org.gongxuanzhang.easybyte.core;
+
+/**
+ *
+ * easy byte configuration
+ * register for wrapper
+ * and so on
+ * @author gxz [email protected]
+ **/
+public interface EasyByteConguration {
+
+
+}

easyByte-core/src/main/java/org/gongxuanzhang/easybyte/core/GlobalConfig.java

@@ -0,0 +1,27 @@
+package org.gongxuanzhang.easybyte.core;
+
+/**
+ * Applies to global configuration
+ * it is the last item in the configuration
+ *
+ * @author gxz [email protected]
+ **/
+public class GlobalConfig {
+
+    private static volatile GlobalConfig INSTANCE = null;
+
+    public static GlobalConfig getInstance() {
+        if (INSTANCE == null) {
+            synchronized (GlobalConfig.class) {
+                if (INSTANCE == null) {
+                    INSTANCE = new GlobalConfig();
+                }
+            }
+        }
+        return INSTANCE;
+    }
+
+
+
+
+}

easyByte-core/src/main/java/org/gongxuanzhang/easybyte/core/exception/WrapperNotFoundException.java

@@ -0,0 +1,9 @@
+package org.gongxuanzhang.easybyte.core.exception;
+
+/**
+ * @author gxz [email protected]
+ **/
+public class WrapperNotFoundException extends RuntimeException {
+
+
+}