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RepositoryId.javaAPI DocJava SE 6 API31892Tue Jun 10 00:21:44 BST 2008com.sun.corba.se.impl.util

RepositoryId

public class RepositoryId extends Object

Fields Summary
public static final byte[]
IDL_IDENTIFIER_CHARS
private static final long
serialVersionUID
private static String
defaultServerURL
private static boolean
useCodebaseOnly
private static IdentityHashtable
classToRepStr
private static IdentityHashtable
classIDLToRepStr
private static IdentityHashtable
classSeqToRepStr
private static IdentityHashtable
repStrToByteArray
private static Hashtable
repStrToClass
private String
repId
private boolean
isSupportedFormat
private String
typeString
private String
versionString
private boolean
isSequence
private boolean
isRMIValueType
private boolean
isIDLType
private String
completeClassName
private String
unqualifiedName
private String
definedInId
private Class
clazz
private String
suid
private String
actualSuid
private long
suidLong
private long
actualSuidLong
private static final String
kSequenceKeyword
private static final String
kValuePrefix
private static final String
kIDLPrefix
private static final String
kIDLNamePrefix
private static final String
kIDLClassnamePrefix
private static final String
kSequencePrefix
private static final String
kCORBAPrefix
private static final String
kArrayPrefix
private static final int
kValuePrefixLength
private static final int
kIDLPrefixLength
private static final int
kSequencePrefixLength
private static final String
kInterfaceHashCode
private static final String
kInterfaceOnlyHashStr
private static final String
kExternalizableHashStr
public static final int
kInitialValueTag
public static final int
kNoTypeInfo
public static final int
kSingleRepTypeInfo
public static final int
kPartialListTypeInfo
public static final int
kChunkedMask
public static final int
kPreComputed_StandardRMIUnchunked
public static final int
kPreComputed_CodeBaseRMIUnchunked
public static final int
kPreComputed_StandardRMIChunked
public static final int
kPreComputed_CodeBaseRMIChunked
public static final int
kPreComputed_StandardRMIUnchunked_NoRep
public static final int
kPreComputed_CodeBaseRMIUnchunked_NoRep
public static final int
kPreComputed_StandardRMIChunked_NoRep
public static final int
kPreComputed_CodeBaseRMIChunked_NoRep
public static final String
kWStringValueVersion
public static final String
kWStringValueHash
public static final String
kWStringStubValue
public static final String
kWStringTypeStr
public static final String
kWStringValueRepID
public static final String
kAnyRepID
public static final String
kClassDescValueHash
public static final String
kClassDescStubValue
public static final String
kClassDescTypeStr
public static final String
kClassDescValueRepID
public static final String
kObjectValueHash
public static final String
kObjectStubValue
public static final String
kSequenceValueHash
public static final String
kPrimitiveSequenceValueHash
public static final String
kSerializableValueHash
public static final String
kSerializableStubValue
public static final String
kExternalizableValueHash
public static final String
kExternalizableStubValue
public static final String
kRemoteValueHash
public static final String
kRemoteStubValue
public static final String
kRemoteTypeStr
public static final String
kRemoteValueRepID
public static final Hashtable
kSpecialArrayTypeStrings
public static final Hashtable
kSpecialCasesRepIDs
public static final Hashtable
kSpecialCasesStubValues
public static final Hashtable
kSpecialCasesVersions
public static final Hashtable
kSpecialCasesClasses
public static final Hashtable
kSpecialCasesArrayPrefix
public static final Hashtable
kSpecialPrimitives
private static final byte[]
ASCII_HEX
Used to convert ascii to hex.
public static final RepositoryIdCache
cache
public static final String
kjava_rmi_Remote
public static final String
korg_omg_CORBA_Object
public static final Class[]
kNoParamTypes
public static final Object[]
kNoArgs
Constructors Summary
RepositoryId()



    // To create a RepositoryID, use code similar to the following:
    // RepositoryId.cache.getId( id );
RepositoryId(String aRepId)

	init(aRepId);
Methods Summary
public static intcomputeValueTag(boolean codeBasePresent, int typeInfo, boolean chunkedEncoding)

	int value_tag = kInitialValueTag;
		
	if (codeBasePresent)
	    value_tag = value_tag | 0x00000001;
	
	value_tag = value_tag | typeInfo;

	if (chunkedEncoding)
	    value_tag = value_tag | kChunkedMask;

	return value_tag;
private static java.lang.StringconvertFromISOLatin1(java.lang.String name)
Convert strings with ISO Latin 1 escape sequences back to original strings.

Section 5.5.7 of OBV spec.


        int index = -1;
        StringBuffer buf = new StringBuffer(name);

        while ((index = buf.toString().indexOf("\\U")) != -1){
            String str = "0000" + buf.toString().substring(index+2, index+6);

            // Convert Hexadecimal
            byte[] buffer = new byte[(str.length() - 4) / 2];
            for (int i=4, j=0; i < str.length(); i +=2, j++) {
                buffer[j] = (byte)((Utility.hexOf(str.charAt(i)) << 4) & 0xF0);
                buffer[j] |= (byte)((Utility.hexOf(str.charAt(i+1)) << 0) & 0x0F);
            }            
            buf = new StringBuffer(delete(buf.toString(), index, index+6));
            buf.insert(index, (char)buffer[1]);
        }
        
        return buf.toString();
public static java.lang.StringconvertToISOLatin1(java.lang.String name)
Convert strings with illegal IDL identifier characters.

Section 5.5.7 of OBV spec.


        int length = name.length();
        if (length == 0) {
            return name;
        }
        StringBuffer buffer = null;

        for (int i = 0; i < length; i++) {

            char c = name.charAt(i);

            if (c > 255 || IDL_IDENTIFIER_CHARS[c] == 0) {
            
                // We gotta convert. Have we already started?

                if (buffer == null) {

                    // No, so get set up...

                    buffer = new StringBuffer(name.substring(0,i));
                }

                // Convert the character into the IDL escape syntax...
                buffer.append(
			      "\\U" +
			      (char)ASCII_HEX[(c & 0xF000) >>> 12] +
			      (char)ASCII_HEX[(c & 0x0F00) >>> 8] +
			      (char)ASCII_HEX[(c & 0x00F0) >>> 4] +
			      (char)ASCII_HEX[(c & 0x000F)]);
        		
            } else {
                if (buffer != null) {
                    buffer.append(c);
                }
            }
    	}
    	
    	if (buffer != null) {
    	    name = buffer.toString();
    	}
 
    	return name;
public static java.lang.StringcreateForAnyType(java.lang.Class type)
Createa a repository ID for the type if it is either a java type or an IDL type.

param
type The type to create rep. id for
return
The rep. id.

	try{
	    if (type.isArray())
		return createSequenceRepID(type);
	    else if (IDLEntity.class.isAssignableFrom(type))
		{
		    try{
			return getIdFromHelper(type);
		    }
		    catch(Throwable t) {
			return createForIDLType(type, 1, 0);
		    }
		}
	    else return createForJavaType(type);
	}
	catch(com.sun.corba.se.impl.io.TypeMismatchException e){ 
	    return null; 
	}
public static java.lang.StringcreateForIDLType(java.lang.Class ser, int major, int minor)
Creates a repository ID for an IDL Java Type.

param
ser The IDL Value object to create a repository ID for
param
major The major version number
param
minor The minor version number
exception
com.sun.corba.se.impl.io.TypeMismatchException if ser does not implement the org.omg.CORBA.portable.IDLEntity interface which indicates it is an IDL Value type.

	synchronized (classIDLToRepStr){
	String repid = (String)classIDLToRepStr.get(ser);
	if (repid != null)
	    return repid;

        repid = kIDLPrefix + convertToISOLatin1(ser.getName()).replace('.",'/") +
	    ":" + major + "." + minor;
	classIDLToRepStr.put(ser, repid);
	return repid;
    }
public static java.lang.StringcreateForJavaType(java.io.Serializable ser)
Creates a repository ID for a normal Java Type.

param
ser The Java object to create a repository ID for
exception
com.sun.corba.se.impl.io.TypeMismatchException if ser implements the org.omg.CORBA.portable.IDLEntity interface which indicates it is an IDL Value type.

	synchronized (classToRepStr) {
	String repid = createForSpecialCase(ser);
	if (repid != null)
	    return repid;
	Class clazz = ser.getClass();
	repid = (String)classToRepStr.get(clazz);

	if (repid != null)
	    return repid;

	repid = kValuePrefix + convertToISOLatin1(clazz.getName()) +
	    createHashString(clazz);

	classToRepStr.put(clazz, repid);
	    repStrToClass.put(repid, clazz);
        return repid;
    }
public static java.lang.StringcreateForJavaType(java.lang.Class clz)
Creates a repository ID for a normal Java Type.

param
clz The Java class to create a repository ID for
exception
com.sun.corba.se.impl.io.TypeMismatchException if ser implements the org.omg.CORBA.portable.IDLEntity interface which indicates it is an IDL Value type.

	synchronized (classToRepStr){
	String repid = createForSpecialCase(clz);
	if (repid != null)
	    return repid;

	repid = (String)classToRepStr.get(clz);
	if (repid != null)
	    return repid;

        repid = kValuePrefix + convertToISOLatin1(clz.getName()) +
	    createHashString(clz);

	classToRepStr.put(clz, repid);
	    repStrToClass.put(repid, clz);
        return repid;
    }
public static java.lang.StringcreateForSpecialCase(java.lang.Class clazz)

	if (clazz.isArray()){
	    return createSequenceRepID(clazz);
	}
	else {
	    return (String)kSpecialCasesRepIDs.get(clazz);
	}
public static java.lang.StringcreateForSpecialCase(java.io.Serializable ser)

	Class clazz = ser.getClass();
	if (clazz.isArray()){
	    return createSequenceRepID(ser);
	}
	else
	    return createForSpecialCase(clazz);
private static java.lang.StringcreateHashString(java.io.Serializable ser)


	return createHashString(ser.getClass());
private static java.lang.StringcreateHashString(java.lang.Class clazz)


	if (clazz.isInterface() || !java.io.Serializable.class.isAssignableFrom(clazz))
	    return kInterfaceHashCode;

	//ObjectStreamClass osc = ObjectStreamClass.lookup(clazz);

	long actualLong = ObjectStreamClass.getActualSerialVersionUID(clazz);
	String hash = null;
	if (actualLong == 0)
	    hash = kInterfaceOnlyHashStr;
	else if (actualLong == 1)
	    hash = kExternalizableHashStr;
	else
	    hash = Long.toHexString(actualLong).toUpperCase();
	while(hash.length() < 16){
	    hash = "0" + hash;
	}

	long declaredLong = ObjectStreamClass.getSerialVersionUID(clazz);
	String declared = null;
	if (declaredLong == 0)
	    declared = kInterfaceOnlyHashStr;
	else if (declaredLong == 1)
	    declared = kExternalizableHashStr;
	else
	    declared = Long.toHexString(declaredLong).toUpperCase();
	while (declared.length() < 16){
	    declared = "0" + declared;
    }
	hash = hash + ":" + declared;

	return ":" + hash;
public static java.lang.StringcreateSequenceRepID(java.lang.Object ser)
Creates a repository ID for a sequence. This is for expert users only as this method assumes the object passed is an array. If passed an object that is not an array, it will produce a rep id for a sequence of zero length. This would be an error.

param
ser The Java object to create a repository ID for

	return createSequenceRepID(ser.getClass());
public static java.lang.StringcreateSequenceRepID(java.lang.Class clazz)
Creates a repository ID for a sequence. This is for expert users only as this method assumes the object passed is an array. If passed an object that is not an array, it will produce a malformed rep id.

param
clazz The Java class to create a repository ID for

	synchronized (classSeqToRepStr){
		
        String repid = (String)classSeqToRepStr.get(clazz);
	if (repid != null)
	    return repid;

	Class originalClazz = clazz;

        Class type = null;
	int numOfDims = 0;

        while ((type = clazz.getComponentType()) != null) {
	    numOfDims++;
            clazz = type;
        }

	if (clazz.isPrimitive())
	    repid = kValuePrefix + originalClazz.getName() + kPrimitiveSequenceValueHash;
	else {
	    StringBuffer buf = new StringBuffer();
	    buf.append(kValuePrefix);
	    while(numOfDims-- > 0) {
		buf.append("[");
	    }
	    buf.append("L");
	    buf.append(convertToISOLatin1(clazz.getName()));
	    buf.append(";");
	    buf.append(createHashString(clazz));
	    repid = buf.toString();
	}
	classSeqToRepStr.put(originalClazz,repid);
	return repid;
	}
private static java.lang.Stringdelete(java.lang.String str, int from, int to)

        return str.substring(0, from) + str.substring(to, str.length());
public static longfromHex(java.lang.String hexNumber)

	if (hexNumber.startsWith("0x")) 
	    return Long.valueOf(hexNumber.substring(2), 16).longValue();
	else return Long.valueOf(hexNumber, 16).longValue();
public final java.lang.StringgetActualSerialVersionUID()

	return actualSuid;
public final longgetActualSerialVersionUIDAsLong()

	return actualSuidLong;
public final java.lang.ClassgetAnyClassFromType()

        try {
	    return getClassFromType();
	} catch (ClassNotFoundException cnfe) {
	    Class clz = (Class)repStrToClass.get(repId);
	    if (clz != null)
		return clz;
	    else
		throw cnfe;
	}
public static byte[]getByteArray(java.lang.String repStr)

	synchronized (repStrToByteArray){
	    return (byte[]) repStrToByteArray.get(repStr);
	}
public final java.lang.ClassgetClassFromType()

	if (clazz != null)
	    return clazz;
		
	Class specialCase = (Class)kSpecialCasesClasses.get(getClassName());

	if (specialCase != null){
	    clazz = specialCase;
	    return specialCase;
	}
	else
	    {
		try{
		    return Util.loadClass(getClassName(), null, null);
		}
		catch(ClassNotFoundException cnfe){
		    if (defaultServerURL != null) {
			try{
			    return getClassFromType(defaultServerURL);
			}
			catch(MalformedURLException mue){
			    throw cnfe;
			}
		    }
		    else throw cnfe;
		}
	    }
public final java.lang.ClassgetClassFromType(java.lang.Class expectedType, java.lang.String codebase)

	if (clazz != null)
	    return clazz;
		
	Class specialCase = (Class)kSpecialCasesClasses.get(getClassName());

	if (specialCase != null){
	    clazz = specialCase;
	    return specialCase;
	} else {
            ClassLoader expectedTypeClassLoader = (expectedType == null ? null : expectedType.getClassLoader());
            return Utility.loadClassOfType(getClassName(),
                                            codebase,
                                            expectedTypeClassLoader,
                                            expectedType,
                                            expectedTypeClassLoader);
        }
public final java.lang.ClassgetClassFromType(java.lang.String url)

	return Util.loadClass(getClassName(), url, null);
public final java.lang.StringgetClassName()


	if (isRMIValueType)
	    return typeString;
	else if (isIDLType)
	    return completeClassName;
	else return null;
public final java.lang.StringgetDefinedInId()

	if (definedInId == null){
	    getUnqualifiedName();
	}
		
	return definedInId;
private static java.lang.StringgetIdFromHelper(java.lang.Class clazz)

    	try {
	    Class helperClazz = Utility.loadClassForClass(clazz.getName()+"Helper", null,
                                    clazz.getClassLoader(), clazz, clazz.getClassLoader());
	    Method idMethod = helperClazz.getDeclaredMethod("id", kNoParamTypes);
	    return (String)idMethod.invoke(null, kNoArgs);
    	}
        catch(java.lang.ClassNotFoundException cnfe)
	    {
        	throw new org.omg.CORBA.MARSHAL(cnfe.toString());
	    }
        catch(java.lang.NoSuchMethodException nsme)
	    {
        	throw new org.omg.CORBA.MARSHAL(nsme.toString());
	    }
        catch(java.lang.reflect.InvocationTargetException ite)
	    {
        	throw new org.omg.CORBA.MARSHAL(ite.toString());
	    }
        catch(java.lang.IllegalAccessException iae)
	    {
        	throw new org.omg.CORBA.MARSHAL(iae.toString());
    }
public final java.lang.StringgetRepositoryId()

        return repId;
public final java.lang.StringgetSerialVersionUID()

	return suid;
public final longgetSerialVersionUIDAsLong()

	return suidLong;
public static java.lang.StringgetServerURL()

	return defaultServerURL;
public static intgetTypeInfo(int value_tag)

	return (value_tag & 0x00000006);
public final java.lang.StringgetTypeString()

        return typeString;
public final java.lang.StringgetUnqualifiedName()

	if (unqualifiedName == null){
	    String className = getClassName();
	    int index = className.lastIndexOf('.");
	    if (index == -1){
		unqualifiedName = className;
		definedInId = "IDL::1.0";
	    }
	    else {
		unqualifiedName = className.substring(index);
		definedInId = "IDL:" + className.substring(0, index).replace('.",'/") + ":1.0";
	    }
	}
		
	return unqualifiedName;
public final java.lang.StringgetVersionString()

        return versionString;
com.sun.corba.se.impl.util.RepositoryIdinit(java.lang.String aRepId)

        this.repId = aRepId;
		
	// Special case for remote
	if (aRepId.length() == 0) {
	    clazz = java.rmi.Remote.class;
	    typeString = "";
	    isRMIValueType = true;
	    suid = kInterfaceOnlyHashStr;
	    return this;
	} else if (aRepId.equals(kWStringValueRepID)) {
	    clazz = java.lang.String.class;
	    typeString = kWStringTypeStr;
	    isIDLType = true;
	    // fix where Attempting to obtain a FullValueDescription 
	    // for an RMI value type with a String field causes an exception. 
	    completeClassName = "java.lang.String";
	    versionString = kWStringValueVersion;
	    return this;			
	} else {
	    String repId = convertFromISOLatin1(aRepId);

	    int firstIndex = repId.indexOf(':") ;
	    if (firstIndex == -1)
		throw new IllegalArgumentException( "RepsitoryId must have the form <type>:<body>" ) ;
	    int secondIndex = repId.indexOf( ':", firstIndex + 1 ) ;

	    if (secondIndex == -1)
		versionString = "" ;
	    else 
		versionString = repId.substring(secondIndex) ;

	    if (repId.startsWith(kIDLPrefix)) {
		typeString =
		    repId.substring(kIDLPrefixLength, repId.indexOf(':", kIDLPrefixLength));
		isIDLType = true;

		if (typeString.startsWith(kIDLNamePrefix))
		    completeClassName = kIDLClassnamePrefix + 
			typeString.substring(kIDLNamePrefix.length()).replace('/",'.");
		else 
		    completeClassName = typeString.replace('/",'.");

	    } else if (repId.startsWith(kValuePrefix)) {
		typeString =
		    repId.substring(kValuePrefixLength, repId.indexOf(':", kValuePrefixLength));
		isRMIValueType = true;

		if (versionString.indexOf('.") == -1) {
		    actualSuid = versionString.substring(1);
		    suid = actualSuid;  // default if not explicitly specified
				
		    if (actualSuid.indexOf(':") != -1){
		    // we have a declared hash also
			int pos = actualSuid.indexOf(':")+1;
			// actualSuid = suid.substring(pos);
			// suid = suid.substring(0, pos-1);
			suid = actualSuid.substring(pos);
			actualSuid = actualSuid.substring(0, pos-1);
		    }
		} else {
		    // _REVISIT_ : Special case version failure ?
		}
	    } else {
		isSupportedFormat = false;
		typeString = "" ;
	    }

	    if (typeString.startsWith(kSequencePrefix)) {
		isSequence = true;
	    }
		
	    return this;
	}
public static booleanisAbstractBase(java.lang.Class clazz)

	return (clazz.isInterface() && 
		IDLEntity.class.isAssignableFrom(clazz) &&
		(!ValueBase.class.isAssignableFrom(clazz)) &&
		(!org.omg.CORBA.Object.class.isAssignableFrom(clazz)));
public static booleanisAnyRequired(java.lang.Class clazz)

	return ((clazz == java.lang.Object.class) ||
		(clazz == java.io.Serializable.class) ||
		(clazz == java.io.Externalizable.class));
public static booleanisChunkedEncoding(int value_tag)

	return ((value_tag & kChunkedMask) != 0);
public static booleanisCodeBasePresent(int value_tag)

	return ((value_tag & 0x00000001) == 1);
public final booleanisIDLType()

	return isIDLType;
public final booleanisRMIValueType()

	return isRMIValueType;
public final booleanisSequence()

        return isSequence;
public final booleanisSupportedFormat()

        return isSupportedFormat;
private static java.lang.Stringreplace(java.lang.String target, java.lang.String arg, java.lang.String source)

        int i = 0;
        i = target.indexOf(arg);

        while(i != -1)
	    {
		String left = target.substring(0, i);
		String right = target.substring(i+arg.length());
		target = new String(left+source+right);
		i = target.indexOf(arg);
	    }
        return target;
public static voidsetByteArray(java.lang.String repStr, byte[] repStrBytes)

	synchronized (repStrToByteArray){
	    repStrToByteArray.put(repStr, repStrBytes);
	}
public final java.lang.StringtoString()

    	return repId;
public static booleanuseFullValueDescription(java.lang.Class clazz, java.lang.String repositoryID)
Checks to see if the FullValueDescription should be retrieved.

exception
Throws IOException if suids do not match or if the repositoryID is not an RMIValueType


	String clazzRepIDStr = createForAnyType(clazz);

	if (clazzRepIDStr.equals(repositoryID))
	    return false;

	RepositoryId targetRepid;
	RepositoryId clazzRepid;

	synchronized(cache) {
	// to avoid race condition where multiple threads could be
	// accessing this method, and their access to the cache may
	// be interleaved giving unexpected results

	    targetRepid = cache.getId(repositoryID);
	    clazzRepid = cache.getId(clazzRepIDStr);
	}
	//ObjectStreamClass osc = ObjectStreamClass.lookup(clazz);
		
	if ((targetRepid.isRMIValueType()) && (clazzRepid.isRMIValueType())){
	    if (!targetRepid.getSerialVersionUID().equals(clazzRepid.getSerialVersionUID())) {

		String mssg = "Mismatched serialization UIDs : Source (Rep. ID" + 
		    clazzRepid + ") = " + 
		    clazzRepid.getSerialVersionUID() + " whereas Target (Rep. ID " + repositoryID + 
		    ") = " + targetRepid.getSerialVersionUID();
				//com.sun.corba.se.impl.io.ValueUtility.log("RepositoryId",mssg);
		throw new IOException(mssg);
	}
	    else {
		return true;
	    }		
	}
	else {

	    throw new IOException("The repository ID is not of an RMI value type (Expected ID = " + clazzRepIDStr + "; Received ID = " + repositoryID +")");
    }