org.syncope.core.persistence.beans.AbstractDerAttr.java Source code

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Here is the source code for org.syncope.core.persistence.beans.AbstractDerAttr.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.syncope.core.persistence.beans;

import java.util.Collection;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.MappedSuperclass;
import org.apache.commons.jexl2.JexlContext;
import org.springframework.context.ConfigurableApplicationContext;
import org.syncope.core.persistence.beans.user.SyncopeUser;
import org.syncope.core.util.ApplicationContextManager;
import org.syncope.core.util.JexlUtil;

@MappedSuperclass
public abstract class AbstractDerAttr extends AbstractBaseBean {

    private static final long serialVersionUID = 4740924251090424771L;

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    protected Long id;

    public Long getId() {
        return id;
    }

    /**
     * @see http://commons.apache.org/jexl/reference/index.html
     * @param attributes the set of attributes against which evaluate this
     * derived attribute
     * @return the value of this derived attribute
     */
    public String getValue(final Collection<? extends AbstractAttr> attributes) {

        final ConfigurableApplicationContext context = ApplicationContextManager.getApplicationContext();
        final JexlUtil jexlUtil = context.getBean(JexlUtil.class);

        // Prepare context using user attributes
        final JexlContext jexlContext = jexlUtil.addAttrsToContext(attributes, null);

        final AbstractAttributable owner = getOwner();
        if (owner instanceof SyncopeUser) {
            jexlContext.set("username",
                    ((SyncopeUser) owner).getUsername() != null ? ((SyncopeUser) owner).getUsername() : "");
            jexlContext.set("creationDate", ((SyncopeUser) owner).getCreationDate() != null
                    ? ((SyncopeUser) owner).getDateFormatter().format(((SyncopeUser) owner).getCreationDate())
                    : "");
            jexlContext.set("lastLoginDate", ((SyncopeUser) owner).getLastLoginDate() != null
                    ? ((SyncopeUser) owner).getDateFormatter().format(((SyncopeUser) owner).getLastLoginDate())
                    : "");
            jexlContext.set("failedLogins",
                    ((SyncopeUser) owner).getFailedLogins() != null ? ((SyncopeUser) owner).getFailedLogins() : "");
            jexlContext.set("changePwdDate", ((SyncopeUser) owner).getChangePwdDate() != null
                    ? ((SyncopeUser) owner).getDateFormatter().format(((SyncopeUser) owner).getChangePwdDate())
                    : "");
        }

        // Evaluate expression using the context prepared before
        return jexlUtil.evaluate(getDerivedSchema().getExpression(), jexlContext);
    }

    public abstract <T extends AbstractAttributable> T getOwner();

    public abstract <T extends AbstractAttributable> void setOwner(T owner);

    public abstract <T extends AbstractDerSchema> T getDerivedSchema();

    public abstract <T extends AbstractDerSchema> void setDerivedSchema(T derivedSchema);
}