com.bstek.dorado.view.output.StylePropertyOutputter.java Source code

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Here is the source code for com.bstek.dorado.view.output.StylePropertyOutputter.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.output;

import java.util.Map;

import org.apache.commons.lang.StringUtils;

/**
 * @author Benny Bao (mailto:benny.bao@bstek.com)
 * @since 2011-6-22
 */
public class StylePropertyOutputter implements PropertyOutputter {

    public boolean isEscapeValue(Object value) {
        if (value == null) {
            return true;
        }

        if (value instanceof String) {
            return StringUtils.isBlank((String) value);
        } else if (value instanceof Map) {
            return ((Map<?, ?>) value).isEmpty();
        }
        return true;
    }

    @SuppressWarnings("unchecked")
    public void output(Object object, OutputContext context) throws Exception {
        JsonBuilder json = context.getJsonBuilder();
        if (object instanceof Map) {
            StringBuffer style = new StringBuffer();
            Map<String, String> map = (Map<String, String>) object;
            for (Map.Entry<String, String> entry : map.entrySet()) {
                String value = entry.getValue();
                if (OutputUtils.isEscapeValue(value)) {
                    continue;
                }
                if (style.length() > 0) {
                    style.append(';');
                }
                style.append(entry.getKey()).append(':').append(String.valueOf(value));
            }
            json.value(style.toString());
        } else {
            json.value(object);
        }
    }
}