// BSD License (http://www.galagosearch.org/license)
   package org.galagosearch.tupleflow;
   
   import java.io.DataInput;
   import java.io.IOException;
   
   /***
    *
    * @author trevor
   */
  public class ArrayInput {
      private DataInput input;
  
      public ArrayInput(DataInput i) {
          input = i;
      }
  
      public int readInt() throws IOException {
          return input.readInt();
      }
  
      public int[] readInts() throws IOException {
          int count = readInt();
          int[] result = new int[count];
  
          for (int i = 0; i < count; i++) {
              result[i] = readInt();
          }
  
          return result;
      }
  
      public long readLong() throws IOException {
          return input.readLong();
      }
  
      public long[] readLongs() throws IOException {
          int count = readInt();
          long[] result = new long[count];
  
          for (int i = 0; i < count; i++) {
              result[i] = readLong();
          }
  
          return result;
      }
  
      public char readChar() throws IOException {
          return input.readChar();
      }
  
      public char[] readChars() throws IOException {
          int count = readInt();
          char[] result = new char[count];
  
          for (int i = 0; i < count; i++) {
              result[i] = readChar();
          }
  
          return result;
      }
  
      public boolean readBoolean() throws IOException {
          return input.readByte() != 0 ? true : false;
      }
  
      public byte readByte() throws IOException {
          return input.readByte();
      }
  
      public byte[] readBytes() throws IOException {
          int count = readInt();
          byte[] result = new byte[count];
          input.readFully(result);
          return result;
      }
  
      public short readShort() throws IOException {
          return input.readShort();
      }
  
      public short[] readShorts() throws IOException {
          int count = readInt();
          short[] result = new short[count];
  
          for (int i = 0; i < count; i++) {
              result[i] = readShort();
          }
  
          return result;
      }
  
      public double readDouble() throws IOException {
          return input.readDouble();
      }
  
      public double[] readDoubles() throws IOException {
          int count = readInt();
          double[] result = new double[count];
 
         for (int i = 0; i < count; i++) {
             result[i] = readDouble();
         }
 
         return result;
     }
 
     public float readFloat() throws IOException {
         return input.readFloat();
     }
 
     public float[] readFloats() throws IOException {
         int count = readInt();
         float[] result = new float[count];
 
         for (int i = 0; i < count; i++) {
             result[i] = readFloat();
         }
 
         return result;
     }
 
     public String readString() throws IOException {
         byte[] bytes = readBytes();
         char[] chars = new char[bytes.length];
 
         for (int i = 0; i < bytes.length; i++) {
             if (bytes[i] < 0) {
                 return new String(bytes, "UTF-8");
             }
             chars[i] = (char) bytes[i];
         }
 
         return new String(chars);
     }
 
     public String[] readStrings() throws IOException {
         int count = readInt();
         String[] result = new String[count];
         for (int i = 0; i < count; i++) {
             result[i] = readString();
         }
         return result;
     }
 
     public DataInput getDataInput() {
         return input;
     }
 }
 
 /*
 
 #
 # The following Python code can autogenerate these Java methods and
 # those in ArrayOutput.
 #
 
 arrayMethod = """
 public %s[] read%s() throws IOException {
 int count = readInt();
 %s[] result = new %s[count];
 
 for(int i=0; i<count; i++) {
 result[i] = read%s();
 }                        
 
 return result;
 }
 """
 
 basicMethod = """
 public %s read%s() throws IOException {
 return input.read%s();
 }                         
 """
 stringMethod = """
 public String readString() throws IOException {
 char[] chars = readChars();
 return new String(chars);
 }
 """             
 
 arrayWriter = """
 public void write%s(%s[] out) throws IOException {
 output.writeInt(out.length);
 for(int i=0; i<out.length; i++) {
 output.write%s(out[i]);
 }
 }"""                                              
 
 basicWriter = """
 public void write%s(%s out) throws IOException {
 output.write%s(out);
 }
 """       
 
 stringWriter = """
 public void writeString(String out) throws IOException {
 output.writeInt(out.length());
 output.writeChars(out);
 }
 """
 
 basicTypes = [ 'int', 'long', 'char', 'byte', 'short', 'double', 'float' ]
 
 def caps(s):
 return s[0].upper() + s[1:]
 
 def plural(s):
 return s + 's'
 
 for type in basicTypes:
 print basicMethod % (type, caps(type), caps(type))
 print arrayMethod % (type, plural(caps(type)), type, type, caps(type))    
 print stringMethod                                                             
 
 print "// writers ----"
 
 for type in basicTypes:
 print basicWriter % (caps(type), type, caps(type))
 print arrayWriter % (plural(caps(type)), type, caps(type))        
 print stringWriter
 
  */