DERBMPString.java
资源名称:security.rar [点击查看]
上传用户:lior1029
上传日期:2013-05-07
资源大小:209k
文件大小:3k
源码类别:
CA认证
开发平台:
Java
- package org.bouncycastle.asn1;
- import java.io.*;
- /**
- * DER BMPString object.
- */
- public class DERBMPString
- extends DERObject
- implements DERString
- {
- String string;
- /**
- * return a BMP String from the given object.
- *
- * @param obj the object we want converted.
- * @exception IllegalArgumentException if the object cannot be converted.
- */
- public static DERBMPString getInstance(
- Object obj)
- {
- if (obj == null || obj instanceof DERBMPString)
- {
- return (DERBMPString)obj;
- }
- if (obj instanceof ASN1OctetString)
- {
- return new DERBMPString(((ASN1OctetString)obj).getOctets());
- }
- if (obj instanceof ASN1TaggedObject)
- {
- return getInstance(((ASN1TaggedObject)obj).getObject());
- }
- throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
- }
- /**
- * return a BMP String from a tagged object.
- *
- * @param obj the tagged object holding the object we want
- * @param explicit true if the object is meant to be explicitly
- * tagged false otherwise.
- * @exception IllegalArgumentException if the tagged object cannot
- * be converted.
- */
- public static DERBMPString getInstance(
- ASN1TaggedObject obj,
- boolean explicit)
- {
- return getInstance(obj.getObject());
- }
- /**
- * basic constructor - byte encoded string.
- */
- public DERBMPString(
- byte[] string)
- {
- char[] cs = new char[string.length / 2];
- for (int i = 0; i != cs.length; i++)
- {
- cs[i] = (char)((string[2 * i] << 8) | (string[2 * i + 1] & 0xff));
- }
- this.string = new String(cs);
- }
- /**
- * basic constructor
- */
- public DERBMPString(
- String string)
- {
- this.string = string;
- }
- public String getString()
- {
- return string;
- }
- public int hashCode()
- {
- return this.getString().hashCode();
- }
- public boolean equals(
- Object o)
- {
- if (!(o instanceof DERBMPString))
- {
- return false;
- }
- DERPrintableString s = (DERPrintableString)o;
- return this.getString().equals(s.getString());
- }
- void encode(
- DEROutputStream out)
- throws IOException
- {
- char[] c = string.toCharArray();
- byte[] b = new byte[c.length * 2];
- for (int i = 0; i != c.length; i++)
- {
- b[2 * i] = (byte)(c[i] >> 8);
- b[2 * i + 1] = (byte)c[i];
- }
- out.writeEncoded(BMP_STRING, b);
- }
- }