/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.jooby.internal.swagger;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import org.jooby.Request;
import org.jooby.Route;
import org.jooby.swagger.SwaggerUI;
import com.google.common.io.ByteStreams;
import com.typesafe.config.Config;
/**
* Serve the default: <code>swagger.html</code> file.
*
* @author edgar
* @since 0.6.2
*/
public class SwaggerHandler implements Route.OneArgHandler {
private String pattern;
private String template;
/**
* Creates a new handler to serve the: <code>swagger.html</code> file.
*
* @param path Path to listen for, like <code>/swagger</code>.
*/
public SwaggerHandler(final String path) {
this.pattern = path;
if (!this.pattern.startsWith("/")) {
this.pattern = "/" + pattern;
}
this.template = template();
}
@Override
public Object handle(final Request req) throws Exception {
Config conf = req.require(Config.class);
String path = conf.getString("application.path");
if (path.endsWith("/")) {
path += pattern.substring(1);
} else {
path += pattern;
}
String uipath = path;
path += req.param("tag").toOptional().map(t -> "/" + t).orElse("");
String html = template.replace("${ui.path}", uipath).replace("${path}", path);
return html;
}
private static String template() {
try (InputStream in = SwaggerUI.class.getResourceAsStream("swagger.html")) {
return new String(ByteStreams.toByteArray(in), StandardCharsets.UTF_8);
} catch (IOException ex) {
throw new IllegalStateException("Not found: swagger.html", ex);
}
}
}