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A java framework to develop web applications

There is a newer version: 12.0.1

/*
 * Copyright 2014-2017 Web Firm Framework
 *
 * 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 com.webfirmframework.wffweb.js;

import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

/**
 * Utility methods to generate JavaScript code.
 *
 * @author WFF
 * @since 2.1.1
 */
public class JsUtil {

    private JsUtil() {
    }

    /**
     * @param jsKeyAndElementId
     *            The map containing key values. The key in the map will be used
     *            as the key in the generated js object. The value in the map
     *            should be the id of the field.
     * @return the JavaScript object for the fields value. Sample :
     *         {username:document.getElementById("uId")}
     * @since 2.1.1
     * @author WFF
     */
    public static String getJsObjectForFieldsValue(
            final Map jsKeyAndElementId) {

        final StringBuilder builder = new StringBuilder(38);

        builder.append('{');

        for (final Entry entry : jsKeyAndElementId.entrySet()) {

            builder.append(entry.getKey()).append(":document.getElementById(\"")
                    .append(entry.getValue().toString()).append("\").value,");

        }

        builder.replace(builder.length() - 1, builder.length(), "}");

        return builder.toString();
    }

    /**
     * @param ids
     *            The set containing element ids. The id will be used as the key
     *            in the generated js object. The value in the set should be the
     *            id of the field. The id in the set should be a valid
     *            JavaScript object key.
     * @return the JavaScript object for the fields value. Sample :
     *         {uId:document.getElementById("uId")}
     * @since 2.1.1
     * @author WFF
     */
    public static String getJsObjectForFieldsValue(final Set