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// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.cmscore.dbs;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Enumeration;
import java.util.Vector;
import netscape.ldap.*;
import com.netscape.certsrv.apps.CMS;
import com.netscape.certsrv.base.EBaseException;
import com.netscape.certsrv.dbs.EDBException;
import com.netscape.certsrv.dbs.IDBAttrMapper;
import com.netscape.certsrv.dbs.IDBObj;
import com.netscape.certsrv.logging.ILogger;
/**
* A class represents ann attribute mapper that maps
* a Java object into LDAP attribute,
* and vice versa.
*
* @author thomask
* @version $Revision$, $Date$
*/
public class ObjectStreamMapper implements IDBAttrMapper {
private String mLdapName = null;
private Vector v = new Vector();
private ILogger mLogger = CMS.getLogger();
/**
* Constructs object stream mapper.
*/
public ObjectStreamMapper(String ldapName) {
mLdapName = ldapName;
v.addElement(mLdapName);
}
/**
* Retrieves a list of supported ldap attributes.
*/
public Enumeration getSupportedLDAPAttributeNames() {
return v.elements();
}
/**
* Maps object to ldap attribute set.
*/
public void mapObjectToLDAPAttributeSet(IDBObj parent, String name,
Object obj, LDAPAttributeSet attrs)
throws EBaseException {
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream os = new ObjectOutputStream(bos);
os.writeObject(obj);
byte data[] = bos.toByteArray();
if (data == null) {
CMS.debug("ObjectStreamMapper:mapObjectToLDAPAttributeSet " +
name + " size=0");
} else {
CMS.debug("ObjectStreamMapper:mapObjectToLDAPAttributeSet " +
name + " size=" + data.length);
}
attrs.add(new LDAPAttribute(mLdapName,
data));
} catch (IOException e) {
/*LogDoc
*
* @phase Maps object to ldap attribute set
* @message ObjectStreamMapper: <exception thrown>
*/
mLogger.log(ILogger.EV_SYSTEM, ILogger.S_DB, ILogger.LL_FAILURE,
CMS.getLogMessage("CMSCORE_DBS_OBJECTSTREAM_MAPPER_ERROR",
e.toString()));
throw new EDBException(
CMS.getUserMessage("CMS_DBS_SERIALIZE_FAILED", name));
}
}
/**
* Maps LDAP attributes into object, and put the object
* into 'parent'.
*/
public void mapLDAPAttributeSetToObject(LDAPAttributeSet attrs,
String name, IDBObj parent) throws EBaseException {
try {
LDAPAttribute attr = attrs.getAttribute(mLdapName);
if (attr == null) {
return;
}
ByteArrayInputStream bis = new ByteArrayInputStream(
(byte[]) attr.getByteValues().nextElement());
ObjectInputStream is = new ObjectInputStream(bis);
parent.set(name, is.readObject());
} catch (IOException e) {
throw new EDBException(
CMS.getUserMessage("CMS_DBS_DESERIALIZE_FAILED", name));
} catch (ClassNotFoundException e) {
throw new EDBException(
CMS.getUserMessage("CMS_DBS_DESERIALIZE_FAILED", name));
}
}
/**
* Maps search filters into LDAP search filter.
*/
public String mapSearchFilter(String name, String op,
String value) throws EBaseException {
return mLdapName + op + value;
}
}
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