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Vaadin is a web application framework for Rich Internet Applications (RIA). Vaadin enables easy development and maintenance of fast and secure rich web applications with a stunning look and feel and a wide browser support. It features a server-side architecture with the majority of the logic running on the server. Ajax technology is used at the browser-side to ensure a rich and interactive user experience.

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/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * 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.vaadin.client;

import java.util.HashSet;
import java.util.Set;

import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.core.client.JsArray;
import com.google.gwt.core.client.JsArrayString;

public final class ValueMap extends JavaScriptObject {
    protected ValueMap() {
    }

    public native double getRawNumber(final String name)
    /*-{
        return this[name];
    }-*/;

    public native int getInt(final String name)
    /*-{
        return this[name];
    }-*/;

    public native boolean getBoolean(final String name)
    /*-{
        return Boolean(this[name]);
    }-*/;

    public native String getString(String name)
    /*-{
        return this[name];
    }-*/;

    public native JsArrayString getKeyArray()
    /*-{
        var a = new Array();
        var attr = this;
        for(var j in attr) {
            // workaround for the infamous chrome hosted mode hack (__gwt_ObjectId)
            if(attr.hasOwnProperty(j))
                a.push(j);
        }
        return a;
    }-*/;

    public Set getKeySet() {
        final HashSet attrs = new HashSet<>();
        JsArrayString attributeNamesArray = getKeyArray();
        for (int i = 0; i < attributeNamesArray.length(); i++) {
            attrs.add(attributeNamesArray.get(i));
        }
        return attrs;
    }

    public native JsArrayString getJSStringArray(String name)
    /*-{
        return this[name];
    }-*/;

    public native JsArray getJSValueMapArray(String name)
    /*-{
        return this[name];
    }-*/;

    public String[] getStringArray(final String name) {
        JsArrayString stringArrayAttribute = getJSStringArray(name);
        final String[] s = new String[stringArrayAttribute.length()];
        for (int i = 0; i < stringArrayAttribute.length(); i++) {
            s[i] = stringArrayAttribute.get(i);
        }
        return s;
    }

    public int[] getIntArray(final String name) {
        JsArrayString stringArrayAttribute = getJSStringArray(name);
        final int[] s = new int[stringArrayAttribute.length()];
        for (int i = 0; i < stringArrayAttribute.length(); i++) {
            s[i] = Integer.parseInt(stringArrayAttribute.get(i));
        }
        return s;
    }

    public native boolean containsKey(final String name)
    /*-{
         return name in this;
    }-*/;

    public native ValueMap getValueMap(String name)
    /*-{
        return this[name];
    }-*/;

    public native String getAsString(String name)
    /*-{
        return '' + this[name];
    }-*/;

    public native JavaScriptObject getJavaScriptObject(String name)
    /*-{
        return this[name];
    }-*/;

}