com.bstek.dorado.view.widget.layout.LayoutTextParserDispatcher.java Source code

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Here is the source code for com.bstek.dorado.view.widget.layout.LayoutTextParserDispatcher.java

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/*
 * This file is part of Dorado 7.x (http://dorado7.bsdn.org).
 * 
 * Copyright (c) 2002-2012 BSTEK Corp. All rights reserved.
 * 
 * This file is dual-licensed under the AGPLv3 (http://www.gnu.org/licenses/agpl-3.0.html) 
 * and BSDN commercial (http://www.bsdn.org/licenses) licenses.
 * 
 * If you are unsure which license is appropriate for your use, please contact the sales department
 * at http://www.bstek.com/contact.
 */

package com.bstek.dorado.view.widget.layout;

import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;

import com.bstek.dorado.config.text.DispatchableTextParser;
import com.bstek.dorado.config.text.TextParseContext;
import com.bstek.dorado.config.text.TextParseException;
import com.bstek.dorado.config.text.TextParser;
import com.bstek.dorado.config.text.TextParserHelper;
import com.bstek.dorado.view.config.definition.LayoutDefinition;
import com.bstek.dorado.view.registry.LayoutTypeRegisterInfo;
import com.bstek.dorado.view.registry.LayoutTypeRegistry;

/**
 * ????
 * 
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since Apr 3, 2008
 */
public class LayoutTextParserDispatcher extends DispatchableTextParser {
    private LayoutTypeRegistry layoutTypeRegistry;
    private TextParserHelper textParserHelper;

    /**
     * ??
     */
    public void setLayoutTypeRegistry(LayoutTypeRegistry layoutTypeRegistry) {
        this.layoutTypeRegistry = layoutTypeRegistry;
    }

    public void setTextParserHelper(TextParserHelper textParserHelper) {
        this.textParserHelper = textParserHelper;
    }

    @Override
    @SuppressWarnings("unchecked")
    public Object parse(char[] charArray, TextParseContext context) throws Exception {
        LayoutDefinition layout = null;
        String layoutType = parseHeader(charArray, context);
        if (StringUtils.isEmpty(layoutType)) {
            layoutType = layoutTypeRegistry.getDefaultType();
        }
        LayoutTypeRegisterInfo info = layoutTypeRegistry.getRegisterInfo(layoutType);
        if (info != null) {
            layout = new LayoutDefinition();
            layout.setType(info.getType());
            Class<? extends Layout> classType = info.getClassType();
            layout.setImplType(classType);
            TextParser layoutParser = textParserHelper.getTextParser(info.getClassType());

            Map<String, Object> attributes = (Map<String, Object>) layoutParser.parse(charArray, context);

            Map<String, Object> style = null;

            for (Map.Entry<String, Object> entry : attributes.entrySet()) {
                String key = entry.getKey();
                if (BeanUtils.getPropertyDescriptor(classType, key) != null) {
                    layout.setProperty(key, entry.getValue());
                } else {
                    if (style == null) {
                        style = new HashMap<String, Object>();
                    }
                    style.put(key, entry.getValue());
                }
            }

            if (style != null) {
                layout.setProperty("style", style);
            }
        } else {
            throw new TextParseException("Unrecognized layout definition [" + layoutType + "].");
        }
        return layout;
    }
}