org.beangle.struts2.view.component.Select.java Source code

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Here is the source code for org.beangle.struts2.view.component.Select.java

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/* Copyright c 2005-2012.
 * Licensed under GNU  LESSER General Public License, Version 3.
 * http://www.gnu.org/licenses
 */
package org.beangle.struts2.view.component;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtils;
import org.apache.commons.lang.StringUtils;
import org.beangle.commons.collection.CollectUtils;

import com.opensymphony.xwork2.util.ValueStack;

import freemarker.template.SimpleScalar;

public class Select extends ClosingUIBean {

    private Object items = Collections.emptyList();
    private String empty = "...";
    private Object value;

    private String keyName;
    private String valueName;

    protected String title;

    protected String comment;
    protected String check;

    public Select(ValueStack stack) {
        super(stack);
    }

    @SuppressWarnings({ "unchecked", "rawtypes" })
    @Override
    protected void evaluateParams() {
        Form myform = findAncestor(Form.class);
        myform.editable(this);
        if (items != null && !(items instanceof Collection) && !(items instanceof Map)
                && !(items instanceof Array)) {
            List list = CollectUtils.newArrayList();
            list.add(items);
            items = list;
        }
        if (null == keyName) {
            if (items instanceof Collection && ((Collection) items).size() > 0
                    && ((Collection) items).iterator().next() instanceof String) {
                List<Map<String, String>> list = new ArrayList<Map<String, String>>();
                for (String s : (Collection<String>) items) {
                    Map map = new HashMap();
                    map.put("id", s);
                    map.put("name", s);
                    list.add(map);
                }
                items = list;
            }
            if (items instanceof Map<?, ?>) {
                keyName = "key";
                valueName = "value";
                items = ((Map<?, ?>) items).entrySet();
            } else {
                keyName = "id";
                valueName = "name";
            }
        }
        if (null == this.id)
            generateIdIfEmpty();
        if (null != label)
            label = getText(label);
        if (null != title) {
            title = getText(title);
        } else {
            title = label;
        }
        if (null != myform) {
            if ("true".equals(required))
                myform.addCheck(id, ".required()");
            if (null != check)
                myform.addCheck(id, check);
        }
    }

    public boolean isSelected(Object obj) {
        if (null == value)
            return false;
        else
            try {
                if (value instanceof Number) {
                    Number v = (Number) value;
                    return v.longValue() == new Long(PropertyUtils.getSimpleProperty(obj, keyName).toString());
                } else if (value instanceof Collection) {
                    @SuppressWarnings("rawtypes")
                    Collection c = (Collection) value;
                    for (Object o : c) {
                        if (o.equals(obj)) {
                            return true;
                        }
                    }
                    return false;
                } else {
                    try {
                        if (obj instanceof Map) {
                            return value.equals(((Map) obj).get(keyName));
                        } else {
                            return value.equals(obj) || value.equals(PropertyUtils.getSimpleProperty(obj, keyName));
                        }
                    } catch (Exception e) {
                        return false;
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
                return false;
            }
    }

    public Object getItems() {
        return items;
    }

    public void setItems(Object items) {
        this.items = items;
    }

    public String getEmpty() {
        return empty;
    }

    public void setEmpty(String empty) {
        this.empty = empty;
    }

    public Object getValue() {
        return value;
    }

    public void setValue(Object value) {
        this.value = value;
    }

    public String getKeyName() {
        return keyName;
    }

    public String getValueName() {
        return valueName;
    }

    public void setOption(String option) {
        if (null != option) {
            if (StringUtils.contains(option, ",")) {
                keyName = StringUtils.substringBefore(option, ",");
                valueName = StringUtils.substringAfter(option, ",");
            }
        }
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getComment() {
        return comment;
    }

    public void setComment(String comment) {
        this.comment = comment;
    }

    public String getCheck() {
        return check;
    }

    public void setCheck(String check) {
        this.check = check;
    }

    @Override
    public String getParameterString() {
        String parameterString = super.getParameterString();
        SimpleScalar placeholder = (SimpleScalar) getParameters().get("placeholder");
        if (placeholder != null && StringUtils.isNotEmpty(placeholder.getAsString())) {
            parameterString += " data-placeholder=\"" + placeholder + "\"";
        }
        return parameterString;
    }
}