org.pepstock.jem.node.executors.certificates.GetCertificates.java Source code

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Here is the source code for org.pepstock.jem.node.executors.certificates.GetCertificates.java

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/**
JEM, the BEE - Job Entry Manager, the Batch Execution Environment
Copyright (C) 2012-2015   Andrea "Stock" Stocchero
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, either version 3 of the License, or
any later version.
    
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, see <http://www.gnu.org/licenses/>.
 */
package org.pepstock.jem.node.executors.certificates;

import java.security.KeyStoreException;
import java.security.cert.CertificateException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.pepstock.jem.node.NodeMessage;
import org.pepstock.jem.node.executors.DefaultExecutor;
import org.pepstock.jem.node.executors.ExecutorException;
import org.pepstock.jem.node.security.CertificateEntry;
import org.pepstock.jem.node.security.keystore.CertificatesUtil;

/**
 * Returns a list of already defined certificates inside of JEM.
 * 
 * @author Andrea "Stock" Stocchero
 * @version 1.4
 */
public class GetCertificates extends DefaultExecutor<Collection<CertificateEntry>> {

    private static final long serialVersionUID = 1L;

    private String filter = null;

    /**
     * Constructs the object using the filter to apply to get the list
     * @param filter filter to get a subset (or whole) list
     * 
     */
    public GetCertificates(String filter) {
        this.filter = filter;
    }

    /* (non-Javadoc)
     * @see org.pepstock.jem.node.executors.DefaultExecutor#execute()
     */
    @Override
    public Collection<CertificateEntry> execute() throws ExecutorException {
        try {
            // creates result list
            List<CertificateEntry> result = new ArrayList<CertificateEntry>();
            // gets all published certificates 
            List<CertificateEntry> list = CertificatesUtil.getCertificates();
            // scans to filter
            for (CertificateEntry entry : list) {
                // scans only certificate with an issuer
                // filter by alias (then user id)
                if (entry.getIssuer() != null
                        && ("".equals(filter) || StringUtils.containsIgnoreCase(entry.getAlias(), filter))) {
                    result.add(entry);
                }
            }
            return result;
        } catch (CertificateException e) {
            throw new ExecutorException(NodeMessage.JEMC239E, e);
        } catch (KeyStoreException e) {
            throw new ExecutorException(NodeMessage.JEMC239E, e);
        }
    }
}