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Vaadin server

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/*
 * Copyright 2000-2014 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.server;

/**
 * An abstract base class for DeploymentConfiguration implementations. This
 * class provides default implementation for common config properties.
 * 
 * @since 7.4
 * 
 * @author Vaadin Ltd
 */
public abstract class AbstractDeploymentConfiguration implements
        DeploymentConfiguration {

    @Override
    public String getUIClassName() {
        return getApplicationOrSystemProperty(VaadinSession.UI_PARAMETER, null);
    }

    @Override
    public String getUIProviderClassName() {
        return getApplicationOrSystemProperty(
                Constants.SERVLET_PARAMETER_UI_PROVIDER, null);
    }

    @Override
    public String getWidgetset(String defaultValue) {
        return getApplicationOrSystemProperty(Constants.PARAMETER_WIDGETSET,
                defaultValue);
    }

    @Override
    public String getResourcesPath() {
        return getApplicationOrSystemProperty(
                Constants.PARAMETER_VAADIN_RESOURCES, null);
    }

    @Override
    public String getClassLoaderName() {
        return getApplicationOrSystemProperty("ClassLoader", null);
    }
}