* A BinaryRefAddr consists of a type that describes the communication mechanism * and an opaque buffer containing the address description * specific to that communication mechanism. The format and interpretation of * the address type and the contents of the opaque buffer are based on * the agreement of three parties: the client that uses the address, * the object/server that can be reached using the address, * and the administrator or program that creates the address. *
* An example of a binary reference address is an BER X.500 presentation address. * Another example of a binary reference address is a serialized form of * a service's object handle. *
* A binary reference address is immutable in the sense that its fields
* once created, cannot be replaced. However, it is possible to access
* the byte array used to hold the opaque buffer. Programs are strongly
* recommended against changing this byte array. Changes to this
* byte array need to be explicitly synchronized.
*
* @author Rosanna Lee
* @author Scott Seligman
*
* @see RefAddr
* @see StringRefAddr
* @since 1.3
*/
/*
* The serialized form of a BinaryRefAddr object consists of its type
* name String and a byte array containing its "contents".
*/
public class BinaryRefAddr extends RefAddr {
/**
* Contains the bytes of the address.
* This field is initialized by the constructor and returned
* using getAddressBytes() and getAddressContents().
* @serial
*/
private byte[] buf = null;
/**
* Constructs a new instance of BinaryRefAddr using its address type and a byte
* array for contents.
*
* @param addrType A non-null string describing the type of the address.
* @param src The non-null contents of the address as a byte array.
* The contents of src is copied into the new BinaryRefAddr.
*/
public BinaryRefAddr(String addrType, byte[] src) {
this(addrType, src, 0, src.length);
}
/**
* Constructs a new instance of BinaryRefAddr using its address type and
* a region of a byte array for contents.
*
* @param addrType A non-null string describing the type of the address.
* @param src The non-null contents of the address as a byte array.
* The contents of src is copied into the new BinaryRefAddr.
* @param offset The starting index in src to get the bytes.
* {@code 0 <= offset <= src.length}.
* @param count The number of bytes to extract from src.
* {@code 0 <= count <= src.length-offset}.
*/
public BinaryRefAddr(String addrType, byte[] src, int offset, int count) {
super(addrType);
buf = new byte[count];
System.arraycopy(src, offset, buf, 0, count);
}
/**
* Retrieves the contents of this address as an Object.
* The result is a byte array.
* Changes to this array will affect this BinaryRefAddr's contents.
* Programs are recommended against changing this array's contents
* and to lock the buffer if they need to change it.
*
* @return The non-null buffer containing this address's contents.
*/
public Object getContent() {
return buf;
}
/**
* Determines whether obj is equal to this address. It is equal if
* it contains the same address type and their contents are byte-wise
* equivalent.
* @param obj The possibly null object to check.
* @return true if the object is equal; false otherwise.
*/
public boolean equals(Object obj) {
if ((obj != null) && (obj instanceof BinaryRefAddr)) {
BinaryRefAddr target = (BinaryRefAddr)obj;
if (addrType.compareTo(target.addrType) == 0) {
if (buf == null && target.buf == null)
return true;
if (buf == null || target.buf == null ||
buf.length != target.buf.length)
return false;
for (int i = 0; i < buf.length; i++)
if (buf[i] != target.buf[i])
return false;
return true;
}
}
return false;
}
/**
* Computes the hash code of this address using its address type and contents.
* Two BinaryRefAddrs have the same hash code if they have
* the same address type and the same contents.
* It is also possible for different BinaryRefAddrs to have
* the same hash code.
*
* @return The hash code of this address as an int.
*/
public int hashCode() {
int hash = addrType.hashCode();
for (int i = 0; i < buf.length; i++) {
hash += buf[i]; // %%% improve later
}
return hash;
}
/**
* Generates the string representation of this address.
* The string consists of the address's type and contents with labels.
* The first 32 bytes of contents are displayed (in hexadecimal).
* If there are more than 32 bytes, "..." is used to indicate more.
* This string is meant to used for debugging purposes and not
* meant to be interpreted programmatically.
* @return The non-null string representation of this address.
*/
public String toString(){
StringBuilder str = new StringBuilder();
str.append("Address Type: ").append(addrType).append('\n');
str.append("AddressContents: ");
for (int i = 0; i