derprintablestring.java

来自「《移动Agent技术》一书的所有章节源代码。」· Java 代码 · 共 82 行

package org.bouncycastle.asn1;

import java.io.*;

/**
 * DER PrintableString object.
 */
public class DERPrintableString
    extends DERObject
    implements DERString
{
    String  string;

    /**
     * basic constructor - byte encoded string.
     */
    public DERPrintableString(
        byte[]   string)
    {
        char[]  cs = new char[string.length];

        for (int i = 0; i != cs.length; i++)
        {
            cs[i] = (char)(string[i] & 0xff);
        }

        this.string = new String(cs);
    }

    /**
     * basic constructor
     */
    public DERPrintableString(
        String   string)
    {
        this.string = string;
    }

    public String getString()
    {
        return string;
    }

    public byte[] getOctets()
    {
        char[]  cs = string.toCharArray();
        byte[]  bs = new byte[cs.length];

        for (int i = 0; i != cs.length; i++)
        {
            bs[i] = (byte)cs[i];
        }

        return bs; 
    }

    void encode(
        DEROutputStream  out)
        throws IOException
    {
        out.writeEncoded(PRINTABLE_STRING, this.getOctets());
    }

    public int hashCode()
    {
        return this.getString().hashCode();
    }

    public boolean equals(
        Object  o)
    {
        if (!(o instanceof DERPrintableString))
        {
            return false;
        }

        DERPrintableString  s = (DERPrintableString)o;

        return this.getString().equals(s.getString());
    }
}