ee.sk.xmlenc.EncryptionProperties Maven / Gradle / Ivy
/*
* EncryptionProperties.java
* PROJECT: JDigiDoc
* DESCRIPTION: a set of properties of encrypted object
* AUTHOR: Veiko Sinivee, S|E|B IT Partner Estonia
*==================================================
* Copyright (C) AS Sertifitseerimiskeskus
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* GNU Lesser General Public Licence is available at
* http://www.gnu.org/copyleft/lesser.html
*==================================================
*/
package ee.sk.xmlenc;
import java.io.Serializable;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import ee.sk.digidoc.DigiDocException;
import ee.sk.utils.ConvertUtils;
import java.util.ArrayList;
/** Contains the data of an
* subelement of an object. This
* element in turn can contain one or many
* sublements and it can have
* an Id atribute
* @author Veiko Sinivee
* @version 1.0
*/
public class EncryptionProperties implements Serializable
{
private static final long serialVersionUID = 1L;
/** Id atribute value (optional) */
private String m_id;
/** array of encryption properties */
private ArrayList m_arrProperties;
/**
* Constructor for EncryptionProperties object
* @param id Id atribute value (optional)
*/
public EncryptionProperties(String id)
{
setId(id);
m_arrProperties = null;
}
/**
* Accessor for id attribute
* @return value of Id attribute
*/
public String getId() {
return m_id;
}
/**
* Mutator for Id attribute
* @param str new value for Id attribute
*/
public void setId(String str) {
m_id = str;
}
/**
* Adds an object to the
* array of properties
* @param prop new property object to be added
*/
public void addProperty(EncryptionProperty prop)
{
if(m_arrProperties == null)
m_arrProperties = new ArrayList();
m_arrProperties.add(prop);
}
/**
* Rturns the number of objects in the list
* @return number of objects
*/
public int getNumProperties()
{
return ((m_arrProperties == null) ? 0 : m_arrProperties.size());
}
/**
* Returns the n-th object
* @param nIdx index of the property
* @return the desired object or null
*/
public EncryptionProperty getProperty(int nIdx)
{
if(nIdx < getNumProperties())
return (EncryptionProperty)m_arrProperties.get(nIdx);
else
return null;
}
/**
* Returns the object with the given Id atribute
* @param id the desired objects Id atribute value
* @return the desired object or null
*/
public EncryptionProperty findPropertyById(String id)
{
for(int i = 0; (m_arrProperties != null) && (i < m_arrProperties.size()); i++) {
EncryptionProperty prop = (EncryptionProperty)m_arrProperties.get(i);
if(prop.getId() != null && prop.getId().equals(id))
return prop;
}
return null;
}
/**
* Returns the object with the given Id atribute
* @param name the desired objects Name atribute value
* @return the desired object or null
*/
public EncryptionProperty findPropertyByName(String name)
{
for(int i = 0; (m_arrProperties != null) && (i < m_arrProperties.size()); i++) {
EncryptionProperty prop = (EncryptionProperty)m_arrProperties.get(i);
if(prop.getName() != null && prop.getName().equals(name))
return prop;
}
return null;
}
/**
* Converts the KeyInfo to XML form
* @return XML representation of KeyInfo
*/
public byte[] toXML()
throws DigiDocException
{
ByteArrayOutputStream bos =
new ByteArrayOutputStream();
try {
bos.write(ConvertUtils.str2data(""));
for(int i = 0; i < getNumProperties(); i++) {
EncryptionProperty prop = getProperty(i);
bos.write(prop.toXML());
}
bos.write(ConvertUtils.str2data(""));
} catch(IOException ex) {
DigiDocException.handleException(ex, DigiDocException.ERR_XML_CONVERT);
}
return bos.toByteArray();
}
/**
* Helper method to validate the whole
* EncrypteionProperties object
* @return a possibly empty list of DigiDocException objects
*/
public ArrayList validate()
{
ArrayList errs = new ArrayList();
for(int i = 0; i < getNumProperties(); i++) {
EncryptionProperty eprop = getProperty(i);
ArrayList e = eprop.validate();
if(!e.isEmpty())
errs.addAll(e);
};
return errs;
}
/**
* Returns the stringified form of KeyInfo
* @return KeyInfo string representation
*/
public String toString() {
String str = null;
try {
str = new String(toXML());
} catch(Exception ex) {}
return str;
}
}