Parse IPv4-mapped IPv6 address as an IPv6 address

[mdsal.git] / model / ietf / ietf-type-util / src / main / java / org / opendaylight / mdsal / model / ietf / util / AbstractIetfInetUtil.java

diff --git a/model/ietf/ietf-type-util/src/main/java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfInetUtil.java b/model/ietf/ietf-type-util/src/main/java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfInetUtil.java
index 88da958305a9e62cec3b41cf9c465939010027fd..aca74d459f89f2629f3e8bb066580dd48e86dc0f 100644 (file)
--- a/model/ietf/ietf-type-util/src/main/java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfInetUtil.java
+++ b/model/ietf/ietf-type-util/src/main/java/org/opendaylight/mdsal/model/ietf/util/AbstractIetfInetUtil.java
@@ -257,7 +257,7 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
      * @return An Ipv4Address object
      */
     public final @NonNull A4 ipv4AddressFor(final int bits) {
-        return address4Factory.newInstance(addressString(bits));
+        return address4Factory.newInstance(Ipv4Utils.addressString(bits));
     }
 
     /**
@@ -293,7 +293,7 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
      * @return An Ipv4AddressNoZone object
      */
     public final @NonNull A4NZ ipv4AddressNoZoneFor(final int bits) {
-        return address4NoZoneFactory.newInstance(addressString(bits));
+        return address4NoZoneFactory.newInstance(Ipv4Utils.addressString(bits));
     }
 
     public final @NonNull A4 ipv4AddressFrom(final @NonNull P4 prefix) {
@@ -311,13 +311,13 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
          */
         final String str = ipv4AddressString(addr);
         final int percent = str.indexOf('%');
-        return ipv4StringBytes(str, percent == -1 ? str.length() : percent);
+        return Ipv4Utils.addressBytes(str, percent == -1 ? str.length() : percent);
     }
 
     public final int ipv4AddressBits(final @NonNull A4 addr) {
         final String str = ipv4AddressString(addr);
         final int percent = str.indexOf('%');
-        return ipv4StringBits(str, percent == -1 ? str.length() : percent);
+        return Ipv4Utils.addressBits(str, percent == -1 ? str.length() : percent);
     }
 
     public final byte @NonNull[] ipv4AddressNoZoneBytes(final @NonNull A4NZ addr) {
@@ -326,34 +326,12 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
          * the Ipv4AddressNoZone pattern, which must not include a zone index.
          */
         final String str = ipv4AddressString(addr);
-        return ipv4StringBytes(str, str.length());
+        return Ipv4Utils.addressBytes(str, str.length());
     }
 
     public final int ipv4AddressNoZoneBits(final @NonNull A4NZ addr) {
         final String str = ipv4AddressString(addr);
-        return ipv4StringBits(str, str.length());
-    }
-
-    private static byte @NonNull[] ipv4StringBytes(final String str, final int limit) {
-        final byte[] bytes = new byte[INET4_LENGTH];
-        Ipv4Utils.fillIpv4Bytes(bytes, 0, str, 0, limit);
-        return bytes;
-    }
-
-    private static int ipv4StringBits(final String str, final int limit) {
-        int prev = 0;
-        int current = 0;
-        for (int i = 0, shift = 24; i < limit; ++i) {
-            final char c = str.charAt(i);
-            if (c == '.') {
-                prev |= current << shift;
-                shift -= 8;
-                current = 0;
-            } else {
-                current = 10 * current + c - '0';
-            }
-        }
-        return prev | current;
+        return Ipv4Utils.addressBits(str, str.length());
     }
 
     /**
@@ -500,8 +478,6 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
      * @throws NullPointerException if addr is null
      */
     public final @NonNull A6 ipv6AddressFor(final @NonNull InetAddress addr) {
-        requireNonNull(addr, "Address must not be null");
-        checkArgument(addr instanceof Inet6Address, "Address has to be an Inet6Address");
         return address6Factory.newInstance(addressStringV6(addr));
     }
 
@@ -526,8 +502,6 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
      * @throws NullPointerException if addr is null
      */
     public final @NonNull A6NZ ipv6AddressNoZoneFor(final @NonNull InetAddress addr) {
-        requireNonNull(addr, "Address must not be null");
-        checkArgument(addr instanceof Inet6Address, "Address has to be an Inet6Address");
         return address6NoZoneFactory.newInstance(addressStringV6(addr));
     }
 
@@ -585,11 +559,11 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
     }
 
     /**
-     * Create a /128 Ipv6Prefix by interpreting input bytes as an IPv4 address.
+     * Create a /128 Ipv6Prefix by interpreting input bytes as an IPv6 address.
      *
      * @param addr an {@link Inet6Address}
      * @return An Ipv6Prefix object
-     * @throws IllegalArgumentException if addr is not an Inet6Address or if mask is not in range 0-128
+     * @throws IllegalArgumentException if addr is not an Inet6Address
      * @throws NullPointerException if addr is null
      */
     public final @NonNull P6 ipv6PrefixFor(final @NonNull InetAddress addr) {
@@ -608,8 +582,6 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
      * @throws NullPointerException if addr is null
      */
     public final @NonNull P6 ipv6PrefixFor(final @NonNull InetAddress addr, final int mask) {
-        requireNonNull(addr, "Address must not be null");
-        checkArgument(addr instanceof Inet6Address, "Address has to be an Inet6Address");
         checkArgument(mask >= 0 && mask <= 128, "Invalid mask %s", mask);
         return prefix6Factory.newInstance(addressStringV6(addr) + '/' + mask);
     }
@@ -695,15 +667,6 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
         }
     }
 
-    private static String addressString(final int bits) {
-        return new StringBuilder(15)
-                .append(bits >>> 24).append('.')
-                .append(bits >>> 16 & 0xFF).append('.')
-                .append(bits >>> 8 & 0xFF).append('.')
-                .append(bits & 0xFF)
-                .toString();
-    }
-
     static String addressStringV4(final byte @NonNull[] bytes) {
         final StringBuilder sb = new StringBuilder(15);
         appendIpv4String(sb, bytes);
@@ -714,13 +677,19 @@ public abstract class AbstractIetfInetUtil<A4, A4NZ extends A4, P4, A6, A6NZ ext
         checkArgument(bytes.length == INET6_LENGTH, "IPv6 address length is 16 bytes");
 
         try {
-            return addressStringV6(Inet6Address.getByAddress(bytes));
+            return addressStringV6(Inet6Address.getByAddress(null, bytes, null));
         } catch (UnknownHostException e) {
             throw new IllegalArgumentException(String.format("Invalid input %s", bytes), e);
         }
     }
 
     private static String addressStringV6(final InetAddress addr) {
+        requireNonNull(addr, "Address must not be null");
+        checkArgument(addr instanceof Inet6Address, "Address has to be an Inet6Address");
+        return addressStringV6((Inet6Address) addr);
+    }
+
+    private static String addressStringV6(final Inet6Address addr) {
         return InetAddresses.toAddrString(addr);
     }