first commit

inc/hgl/io/JavaInputStream.h

@@ -0,0 +1,71 @@
+#ifndef HGL_IO_JAVA_INPUT_STREAM_INCLUDE
+#define HGL_IO_JAVA_INPUT_STREAM_INCLUDE
+
+#include<hgl/io/DataInputStream.h>
+namespace hgl
+{
+    namespace io
+    {
+        /**
+        * Java数据输入流<br>
+        * 接口类似于java.io.DataInputStream，用于和Java程序进行交互
+        */
+        class JavaInputStream
+        {
+        protected:
+
+            BEDataInputStream *in;
+
+        public:
+
+            JavaInputStream(InputStream *is)
+            {
+                in=new BEDataInputStream(is);
+            }
+
+            virtual ~JavaInputStream()
+            {
+                delete in;
+            }
+
+            int64   read                (void *ptr,int size){return in?in->ReadFully(ptr,size):-1;}
+            int     skipBytes           (int size)          {return in?in->Seek(size,soCurrent):-1;}
+
+            bool    readBoolean         (bool       &b)     {return in?in->ReadBool     (b):false;}
+            bool    readByte            (int8       &i)     {return in?in->ReadInt8     (i):false;}
+            bool    readUnsignedByte    (uint8      &i)     {return in?in->ReadUint8    (i):false;}
+
+            bool    readShort           (int16      &i)     {return in?in->ReadInt16    (i):false;}
+            bool    readUnsignedShort   (uint16     &i)     {return in?in->ReadUint16   (i):false;}
+            bool    readInt             (int32      &i)     {return in?in->ReadInt32    (i):false;}
+            bool    readLong            (int64      &i)     {return in?in->ReadInt64    (i):false;}
+            bool    readFloat           (float      &f)     {return in?in->ReadFloat    (f):false;}
+            bool    readDouble          (double     &d)     {return in?in->ReadDouble   (d):false;}
+
+            bool    readChar            (u16char    &c)
+            {
+                if(!in)
+                    return(false);
+
+                uint16 c16;
+
+                if(!in->Read(c16))
+                    return(false);
+
+                c=BigToCurrentEndian(c16);
+                return(true);
+            }
+
+            bool    readChars           (u16char *wstr,const int count)
+            {
+                return in?in->ReadUTF16BEChars(wstr,count):false;
+            }
+
+            bool    readUTF             (UTF16String &str)
+            {
+                return in?in->ReadUTF8ShortString(str);
+            }
+        };//class JavaInputStream
+    }//namespace io
+}//namespace hgl
+#endif//HGL_IO_JAVA_INPUT_STREAM_INCLUDE