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AttributeValue.javaAPI DocAndroid 1.5 API7363Wed May 06 22:41:06 BST 2009org.apache.harmony.security.x501

AttributeValue

public class AttributeValue extends Object
X.501 Attribute Value

Fields Summary
public final boolean
wasEncoded
public String
escapedString
private String
hexString
private int
tag
public byte[]
encoded
public byte[]
bytes
public boolean
hasQE
public String
rawString
Constructors Summary
public AttributeValue(String parsedString, boolean hasQorE)

 // raw string contains '"' or '\'

         

        wasEncoded = false;

        this.hasQE = hasQorE;

        this.rawString = parsedString;
        this.escapedString = makeEscaped(rawString);
public AttributeValue(String hexString, byte[] encoded)


        wasEncoded = true;

        this.hexString = hexString;
        this.encoded = encoded;

        try {
            DerInputStream in = new DerInputStream(encoded);

            tag = in.tag;

            if (DirectoryString.ASN1.checkTag(tag)) {
                // has string representation
                this.rawString = (String) DirectoryString.ASN1.decode(in);
                this.escapedString = makeEscaped(rawString);
            } else {
                this.rawString = hexString;
                this.escapedString = hexString;
            }
        } catch (IOException e) {
            IllegalArgumentException iae = new IllegalArgumentException(); //FIXME message
            iae.initCause(e);
            throw iae;
        }
public AttributeValue(String rawString, byte[] encoded, int tag)


        wasEncoded = true;

        this.encoded = encoded;
        this.tag = tag;

        if (rawString == null) {
            this.rawString = getHexString();
            this.escapedString = hexString;
        } else {
            this.rawString = rawString;
            this.escapedString = makeEscaped(rawString);
        }
Methods Summary
public voidappendQEString(java.lang.StringBuffer buf)

        buf.append('"");
        if (hasQE) {
            char c;
            for (int i = 0; i < rawString.length(); i++) {
                c = rawString.charAt(i);
                if (c == '"" || c == '\\") {
                    buf.append('\\");
                }
                buf.append(c);
            }
        } else {
            buf.append(rawString);
        }
        buf.append('"");
public java.lang.StringgetHexString()

        if (hexString == null) {

            if (!wasEncoded) {
                //FIXME optimize me: what about reusable OutputStream???
                if (Utils.isPrintableString(rawString)) {
                    encoded = ASN1StringType.PRINTABLESTRING.encode(rawString);
                } else {
                    encoded = ASN1StringType.UTF8STRING.encode(rawString);
                }
            }

            StringBuffer buf = new StringBuffer(encoded.length * 2 + 1);
            buf.append('#");

            for (int i = 0, c; i < encoded.length; i++) {
                c = (encoded[i] >> 4) & 0x0F;
                if (c < 10) {
                    buf.append((char) (c + 48));
                } else {
                    buf.append((char) (c + 87));
                }

                c = encoded[i] & 0x0F;
                if (c < 10) {
                    buf.append((char) (c + 48));
                } else {
                    buf.append((char) (c + 87));
                }
            }
            hexString = buf.toString();
        }
        return hexString;
public intgetTag()

        if (tag == -1) {
            if (Utils.isPrintableString(rawString)) {
                tag = ASN1StringType.PRINTABLESTRING.id;
            } else {
                tag = ASN1StringType.UTF8STRING.id;
            }
        }
        return tag;
public java.lang.StringmakeCanonical()


        int length = rawString.length();
        if (length == 0) {
            return rawString;
        }
        StringBuffer buf = new StringBuffer(length * 2);

        int index = 0;
        if (rawString.charAt(0) == '#") {
            buf.append('\\");
            buf.append('#");
            index++;
        }

        int bufLength;
        for (; index < length; index++) {

            char ch = rawString.charAt(index);

            switch (ch) {

            case ' ":
                bufLength = buf.length();
                if (bufLength == 0 || buf.charAt(bufLength - 1) == ' ") {
                    break;
                }
                buf.append(' ");
                break;

            case '"":
            case '\\":
            case ',":
            case '+":
            case '<":
            case '>":
            case ';":
                buf.append('\\");

            default:
                buf.append(ch);
            }
        }

        //remove trailing spaces
        for (bufLength = buf.length() - 1; bufLength > -1
                && buf.charAt(bufLength) == ' "; bufLength--) {
        }
        buf.setLength(bufLength + 1);

        return buf.toString();
private java.lang.StringmakeEscaped(java.lang.String name)


        int length = name.length();
        if (length == 0) {
            return name;
        }
        StringBuffer buf = new StringBuffer(length * 2);

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

            char ch = name.charAt(index);

            switch (ch) {

            case ' ":
                if (index == 0 || index == (length - 1)) {
                    // escape first or last space 
                    buf.append('\\");
                }
                buf.append(' ");
                break;

            case '"":
            case '\\":
                hasQE = true;

            case ',":
            case '+":
            case '<":
            case '>":
            case ';":
            case '#": // required by RFC 1779
            case '=": // required by RFC 1779
                buf.append('\\");

            default:
                buf.append(ch);
            }
        }

        return buf.toString();