io.swagger.jaxrs.config.ReaderConfigUtils Maven / Gradle / Ivy

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package io.swagger.jaxrs.config;

import org.apache.commons.lang3.StringUtils;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import java.util.LinkedHashSet;
import java.util.Set;

/**
 * The ReaderConfigUtils class defines helper methods for handling
 * configuration settings for JAX-RS annotations reader.
 */
public class ReaderConfigUtils {

    private ReaderConfigUtils() {
    }

    public static void initReaderConfig(ServletConfig config) {
        if ("true".equals(config.getInitParameter("scan.all.resources"))) {
            final DefaultReaderConfig rc = new DefaultReaderConfig();
            rc.setScanAllResources(true);
            final Set ignoredRoutes = new LinkedHashSet();
            for (String item : StringUtils.trimToEmpty(config.getInitParameter("ignore.routes")).split(",")) {
                final String route = StringUtils.trimToNull(item);
                if (route != null) {
                    ignoredRoutes.add(route);
                }
            }
            rc.setIgnoredRoutes(ignoredRoutes);
            config.getServletContext().setAttribute(getAttributeName(), rc);
        }
    }

    public static ReaderConfig getReaderConfig(ServletContext context) {
        if (context == null) return null;
        final Object attr = context.getAttribute(getAttributeName());
        if (attr instanceof ReaderConfig) {
            return (ReaderConfig) attr;
        }
        return null;
    }

    private static String getAttributeName() {
        return ReaderConfig.class.getName();
    }
}