VmsFilterTranslator.java

/*
 * ====================
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2008-2009 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of the Common Development
 * and Distribution License("CDDL") (the "License").  You may not use this file
 * except in compliance with the License.
 *
 * You can obtain a copy of the License at
 * http://opensource.org/licenses/cddl1.php
 * See the License for the specific language governing permissions and limitations
 * under the License.
 *
 * When distributing the Covered Code, include this CDDL Header Notice in each file
 * and include the License file at http://opensource.org/licenses/cddl1.php.
 * If applicable, add the following below this CDDL Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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package org.identityconnectors.vms;

import java.util.List;

import org.identityconnectors.framework.common.objects.Attribute;
import org.identityconnectors.framework.common.objects.Name;
import org.identityconnectors.framework.common.objects.Uid;
import org.identityconnectors.framework.common.objects.filter.AbstractFilterTranslator;
import org.identityconnectors.framework.common.objects.filter.ContainsFilter;
import org.identityconnectors.framework.common.objects.filter.EndsWithFilter;
import org.identityconnectors.framework.common.objects.filter.EqualsFilter;
import org.identityconnectors.framework.common.objects.filter.StartsWithFilter;

public class VmsFilterTranslator extends AbstractFilterTranslator<String> {
    @Override
    protected String createAndExpression(String leftExpression, String rightExpression) {
        // Although VMS does not support AND, we can use one of the filters,
        // since we just need to do partial filtering
        //
        if (leftExpression != null) {
            return leftExpression;
        } else if (rightExpression != null) {
            return rightExpression;
        } else {
            return null;
        }
    }

    @Override
    protected String createStartsWithExpression(StartsWithFilter filter, boolean not) {
        if (!not && isNamingAttribute(filter.getAttribute())) {
            return filter.getValue() + "*";
        } else {
            return super.createStartsWithExpression(filter, not);
        }
    }

    @Override
    protected String createEqualsExpression(EqualsFilter filter, boolean not) {
        List<Object> value = filter.getAttribute().getValue();
        if (!not && isNamingAttribute(filter.getAttribute())) {
            return (String) value.get(0);
        } else {
            return super.createEqualsExpression(filter, not);
        }
    }

    @Override
    protected String createEndsWithExpression(EndsWithFilter filter, boolean not) {
        if (!not && isNamingAttribute(filter.getAttribute())) {
            return "*" + filter.getValue();
        } else {
            return super.createEndsWithExpression(filter, not);
        }
    }

    @Override
    protected String createContainsExpression(ContainsFilter filter, boolean not) {
        if (!not && isNamingAttribute(filter.getAttribute())) {
            return "*" + filter.getValue() + "*";
        } else {
            return super.createContainsExpression(filter, not);
        }
    }

    private boolean isNamingAttribute(Attribute attribute) {
        return attribute.is(Name.NAME) || attribute.is(Uid.NAME);
    }
}