org.exoplatform.container.xml.ObjectParam.java Source code

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Here is the source code for org.exoplatform.container.xml.ObjectParam.java

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/*
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.exoplatform.container.xml;

import org.apache.commons.beanutils.PropertyUtils;
import org.exoplatform.commons.utils.ClassLoading;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

/**
 * Jul 19, 2004
 * 
 * @author: Tuan Nguyen
 * @email: tuan08@users.sourceforge.net
 * @version: $Id: ObjectParam.java 5799 2006-05-28 17:55:42Z geaz $
 */
public class ObjectParam extends Parameter {
    /**
     * The logger
     */
    private static final Log LOG = ExoLogger.getLogger("exo.kernel.container.xml.ObjectParam");

    private String type;

    private String package_;

    private Object object_;

    private ArrayList properties_ = new ArrayList();

    public String getType() {
        return type;
    }

    public void setType(String s) {
        type = s;
        int idx = type.lastIndexOf(".");
        if (idx > 0) {
            package_ = type.substring(0, idx);
        }
    }

    public Object getObject() {
        if (object_ == null) {
            populateBean();
        }
        return object_;
    }

    public void addProperty(String name, String value) {
        properties_.add(new Property(name, value));
    }

    private void populateBean() {
        Property prop = null;
        try {
            Class<?> clazz = ClassLoading.forName(type, this);
            object_ = clazz.newInstance();
            for (int i = 0; i < properties_.size(); i++) {
                prop = (Property) properties_.get(i);
                if (prop.name.endsWith("]")) {
                    // arrary or list
                    populateBeanInArray(object_, prop.name, prop.value);
                } else {
                    Object valueBean = getValue(prop.value);
                    PropertyUtils.setProperty(object_, prop.name, valueBean);
                }
            }
        } catch (Exception ex) {
            // if(prop != null) {
            // S ystem.out.println("Exception when try setting the prop.name " +
            // prop.name_ +
            // ", value prop.value " + prop.value_) ;
            // }
            LOG.error(ex.getLocalizedMessage(), ex);
        }
    }

    private void populateBeanInArray(Object bean, String name, String value) throws Exception {
        int idx = name.lastIndexOf("[");
        String arrayBeanName = name.substring(0, idx);
        int index = Integer.parseInt(name.substring(idx + 1, name.length() - 1));
        Object arrayBean = PropertyUtils.getProperty(bean, arrayBeanName);
        if (arrayBean instanceof List) {
            List list = (List) arrayBean;
            Object valueBean = getValue(value);
            if (list.size() == index) {
                list.add(valueBean);
            } else {
                list.set(index, valueBean);
            }
        } else if (arrayBean instanceof Collection) {
            Collection c = (Collection) arrayBean;
            Object valueBean = getValue(value);
            c.add(valueBean);
        } else {
            Object[] array = (Object[]) arrayBean;
            array[index] = getValue(value);
        }
    }

    private Object getValue(String value) throws Exception {
        if (value.startsWith("#new")) {
            String[] temp = value.split(" ");
            String className = temp[1];

            if (className.indexOf(".") < 0) {
                StringBuilder fullName = new StringBuilder();
                fullName.append(package_);
                fullName.append(".");
                fullName.append(className);

                Class clazz = ClassLoading.forName(fullName.toString(), this);
                return clazz.newInstance();
            }
        } else if (value.startsWith("#int")) {
            String[] temp = value.split(" ");
            value = temp[1].trim();
            return new Integer(value);
        } else if (value.startsWith("#long")) {
            String[] temp = value.split(" ");
            value = temp[1].trim();
            return new Long(value);
        } else if (value.startsWith("#boolean")) {
            String[] temp = value.split(" ");
            value = temp[1].trim();
            return new Boolean("true".equals(value));
        }
        return value;
    }

    public void addProperty(Object value) {
        properties_.add(value);
    }

    public Iterator getPropertyIterator() {
        return properties_.iterator();
    }
}