x500name.java

wendang for java. 124342423 432

package javasec.samples.ch14;

// Store an X500 Name and extract its components on demand
public class X500Name {

    private String CN, OU, O, L, ST, C;
    private String name;
    private char nameChar[];

    public X500Name(String s) {
        if (s == null)
            throw new IllegalArgumentException("Name can抰 be null");
        name = s;
    }

    public String getCN() {
        if (CN == null)
            CN = parse("CN=");
        return CN;
    }

    public String getOU() {
        if (OU == null)
            OU = parse("OU=");
        return OU;
    }

    public String getO() {
        if (O == null)
            O = parse("O=");
        return O;
    }

    public String getL() {
        if (L == null)
            L = parse("L=");
        return L;
    }

    public String getST() {
        if (ST == null)
            ST = parse("ST=");
        return ST;
    }

    public String getC() {
        if (C == null)
            C = parse("C=");
        return C;
    }

    // Parse the name for the given target
    private String parse(String target) {
        if (nameChar == null)
            nameChar = name.toCharArray();
        char targetChar[] = target.toCharArray();

        for (int i = 0; i < nameChar.length; i++) {
            if (nameChar[i] == targetChar[0]) {
                // Possible match, check further
                boolean found = true;   // At least so far...
                for (int j = 0; j < targetChar.length; j++) {
                    try {
                        if (nameChar[i + j] != targetChar[j]) {
                            // No match, continue on...
                            found = false;
                            break;
                        }
                    } catch (ArrayIndexOutOfBoundsException aioobe) {
                        // No match, and nothing left in nameChar
                        return null;
                    }
                }
                if (found) {
                    int firstPos = i + targetChar.length;
                    int lastPos;
                    int endChar;
                    if (nameChar[firstPos] == 抃"