org.jdal.ui.bind.ControlInitializerSupport.java Source code

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Here is the source code for org.jdal.ui.bind.ControlInitializerSupport.java

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/*
 * Copyright 2009-2012 Jose Luis Martin.
 *
 * Licensed 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.jdal.ui.bind;

import java.io.Serializable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.lang.ArrayUtils;
import org.jdal.dao.Dao;
import org.jdal.dao.Page;
import org.jdal.util.BeanUtils;
import org.jdal.util.comparator.PropertyComparator;
import org.springframework.util.ReflectionUtils;
import org.springframework.util.StringUtils;

import com.ctc.wstx.util.StringUtil;

/**
 * Support class for {@link ControlInitializer ControlInitializers}.
 * 
 * @author Jose Luis Martin
 * @see ControlInitializer
 * @since 2.0
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public abstract class ControlInitializerSupport implements ControlInitializer {

    protected Dao<Object, ? extends Serializable> dao;
    private boolean initializeEntities = false;
    private boolean firstNull = false;

    protected List<Object> getEntityList(Class<?> propertyType, String sortProperty) {
        List entities = dao.getAll(propertyType);
        sort(entities, sortProperty);
        if (isInitializeEntities()) {
            for (Object entity : entities)
                dao.initialize(entity);
        }
        if (isFirstNull())
            entities.add(0, null);

        return entities;
    }

    /**
     * @param entities
     * @param sortProperty
     */
    protected void sort(List entities, String sortProperty) {
        if (!StringUtils.isEmpty(sortProperty))
            Collections.sort(entities, new PropertyComparator(sortProperty));
    }

    protected List<Object> getEntityList(Class<?> propertyType) {
        return getEntityList(propertyType, null);
    }

    /**
     * @param entities
     * @return
     */
    protected List<Object> getValueList(List entities, String propertyName) {
        List<Object> values = new ArrayList<Object>(entities.size());
        Iterator iter = entities.iterator();

        while (iter.hasNext()) {
            Object value = iter.next();
            if (value == null)
                values.add(null);
            else {
                values.add(BeanUtils.getProperty(value, propertyName));
            }
        }

        return values;
    }

    /**
     * Get field or method annotations
     * @param property
     * @param clazz
     * @return
     */
    protected Annotation[] getAnnotations(String property, Class<?> clazz) {
        Field field = ReflectionUtils.findField(clazz, property);
        Annotation[] fa = new Annotation[] {};

        if (field != null) {
            fa = field.getAnnotations();
        }

        Method method = BeanUtils.getPropertyDescriptor(clazz, property).getReadMethod();
        if (method != null) {
            Annotation[] ma = method.getAnnotations();
            Annotation[] annotations = (Annotation[]) ArrayUtils.addAll(fa, ma);
            return annotations;
        }

        return fa;
    }

    /**
     * @return the Dao
     */
    public Dao<Object, ? extends Serializable> getPersistentService() {
        return dao;
    }

    /**
     * @param Dao the Dao to set
     */
    public void setPersistentService(Dao<Object, ? extends Serializable> Dao) {
        this.dao = Dao;
    }

    /**
     * @return the initializeEntities
     */
    public boolean isInitializeEntities() {
        return initializeEntities;
    }

    /**
     * @param initializeEntities the initializeEntities to set
     */
    public void setInitializeEntities(boolean initializeEntities) {
        this.initializeEntities = initializeEntities;
    }

    /**
     * @return the firstNull
     */
    public boolean isFirstNull() {
        return firstNull;
    }

    /**
     * @param firstNull the firstNull to set
     */
    public void setFirstNull(boolean firstNull) {
        this.firstNull = firstNull;
    }

}