PC Pro 1999 April/DPPCPRO0499.ISO/April/Notes/50b2wic.exe/DATA1.CAB/NotesProgramFilesJavaSupport/rt.jar/sun/security/util/ObjectIdentifier.class

Java Class File | 1998-04-23 | 3.5 KB | 180 lines

package sun.security.util;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.Serializable;

public final class ObjectIdentifier implements Serializable {
   private int[] components;
   private int componentLen;
   private static final int allocationQuantum = 5;

   public ObjectIdentifier(int[] var1) {
      try {
         this.components = (int[])var1.clone();
         this.componentLen = var1.length;
      } catch (Throwable var2) {
         System.out.println("X509.ObjectIdentifier(), no cloning!");
      }
   }

   ObjectIdentifier(DerInputStream var1) throws IOException {
      byte var2 = (byte)var1.getByte();
      if (var2 != 6) {
         throw new IOException("X509.ObjectIdentifier() -- data isn't an object ID (tag = " + var2 + ")");
      } else {
         int var3 = var1.available() - var1.getLength() - 1;
         if (var3 < 0) {
            throw new IOException("X509.ObjectIdentifier() -- not enough data");
         } else {
            this.initFromEncoding(var1, var3);
         }
      }
   }

   ObjectIdentifier(DerInputBuffer var1) throws IOException {
      this.initFromEncoding(new DerInputStream(var1), 0);
   }

   private void initFromEncoding(DerInputStream var1, int var2) throws IOException {
      boolean var4 = true;
      this.components = new int[5];
      this.componentLen = 0;

      while(var1.available() > var2) {
         int var3 = getComponent(var1);
         if (var4) {
            byte var5;
            if (var3 < 40) {
               var5 = 0;
            } else if (var3 < 80) {
               var5 = 1;
            } else {
               var5 = 2;
            }

            int var6 = var3 - var5 * 40;
            this.components[0] = var5;
            this.components[1] = var6;
            this.componentLen = 2;
            var4 = false;
         } else {
            if (this.componentLen >= this.components.length) {
               int[] var7 = new int[this.components.length + 5];
               System.arraycopy(this.components, 0, var7, 0, this.components.length);
               this.components = var7;
            }

            this.components[this.componentLen++] = var3;
         }
      }

      if (var1.available() != var2) {
         throw new IOException("X509.ObjectIdentifier() -- malformed input data");
      }
   }

   void emit(DerOutputStream var1) throws IOException {
      DerOutputStream var2 = new DerOutputStream();
      ((ByteArrayOutputStream)var2).write(this.components[0] * 40 + this.components[1]);

      for(int var3 = 2; var3 < this.componentLen; ++var3) {
         putComponent(var2, this.components[var3]);
      }

      var1.write((byte)6, var2);
   }

   private static int getComponent(DerInputStream var0) throws IOException {
      int var2 = 0;

      for(int var1 = 0; var2 < 4; ++var2) {
         var1 <<= 7;
         int var3 = var0.getByte();
         var1 |= var3 & 127;
         if ((var3 & 128) == 0) {
            return var1;
         }
      }

      throw new IOException("X509.OID, component value too big");
   }

   private static void putComponent(DerOutputStream var0, int var1) throws IOException {
      byte[] var3 = new byte[4];

      int var2;
      for(var2 = 0; var2 < 4; ++var2) {
         var3[var2] = (byte)(var1 & 127);
         var1 >>>= 7;
         if (var1 == 0) {
            break;
         }
      }

      while(var2 > 0) {
         ((ByteArrayOutputStream)var0).write(var3[var2] | 128);
         --var2;
      }

      ((ByteArrayOutputStream)var0).write(var3[0]);
   }

   public boolean precedes(ObjectIdentifier var1) {
      if (var1 != this && this.componentLen >= var1.componentLen) {
         if (var1.componentLen < this.componentLen) {
            return true;
         } else {
            for(int var2 = 0; var2 < this.componentLen; ++var2) {
               if (var1.components[var2] < this.components[var2]) {
                  return true;
               }
            }

            return false;
         }
      } else {
         return false;
      }
   }

   public boolean equals(Object var1) {
      return var1 instanceof ObjectIdentifier ? this.equals((ObjectIdentifier)var1) : false;
   }

   public boolean equals(ObjectIdentifier var1) {
      if (var1 == this) {
         return true;
      } else if (this.componentLen != var1.componentLen) {
         return false;
      } else {
         for(int var2 = 0; var2 < this.componentLen; ++var2) {
            if (this.components[var2] != var1.components[var2]) {
               return false;
            }
         }

         return true;
      }
   }

   public int hashCode() {
      return this.toString().hashCode();
   }

   public String toString() {
      int var2 = 0;

      String var1;
      for(var1 = ""; var2 < this.componentLen; ++var2) {
         if (var2 != 0) {
            var1 = var1 + ".";
         }

         var1 = var1 + this.components[var2];
      }

      return var1;
   }
}