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/*
* 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.apache.camel.support;
import java.net.URISyntaxException;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import org.apache.camel.spi.RestConfiguration;
import org.apache.camel.util.HostUtils;
import org.apache.camel.util.URISupport;
/**
* Helper class for rest-dsl components.
*/
public final class RestComponentHelper {
private RestComponentHelper() {
}
/**
*
* @param queryMap the map of Endpoint options to apply the HTTP restrict settings to
* @param verb the HTTP verb for the route
* @param addOptions should OPTIONS verb be added.
* @return the map of Endpoint Properties with HTTP Restrict Options set
*/
public static Map addHttpRestrictParam(Map queryMap, String verb, boolean addOptions) {
String restrict = verb.toUpperCase(Locale.US);
if (addOptions) {
restrict += ",OPTIONS";
}
queryMap.put("httpMethodRestrict", restrict);
return queryMap;
}
/**
*
* Creates an endpoint properties based on properties set in the component's RestConfiguration.
*
* @param componentName the Rest Component name
* @param config the RestConfiguration
* @return the map of endpoint properties set in the RestConfiguration
*/
public static Map initRestEndpointProperties(String componentName, RestConfiguration config) {
Map map = new HashMap<>();
// build query string, and append any endpoint configuration properties
if (config.getComponent() == null || config.getComponent().equals(componentName)) {
// setup endpoint options
if (config.getEndpointProperties() != null && !config.getEndpointProperties().isEmpty()) {
map.putAll(config.getEndpointProperties());
}
}
return map;
}
/**
*
* Sets the Rest consumer host based on RestConfiguration
*
* @param host the existing host configuration
* @param config the RestConfiguration
* @return the host based on RestConfiguration
* @throws UnknownHostException thrown when local host or local ip can't be resolved via network interfaces.
*/
public static String resolveRestHostName(String host, RestConfiguration config) throws UnknownHostException {
if (config.getHostNameResolver() == RestConfiguration.RestHostNameResolver.allLocalIp) {
host = "0.0.0.0";
} else if (config.getHostNameResolver() == RestConfiguration.RestHostNameResolver.localHostName) {
host = HostUtils.getLocalHostName();
} else if (config.getHostNameResolver() == RestConfiguration.RestHostNameResolver.localIp) {
host = HostUtils.getLocalIp();
}
return host;
}
/**
*
* Creates the Rest consumers url based on component and url options.
*
* @param componentName the name of the rest component
* @param verb the HTTP verb
* @param path the HTTP path of the route
* @param queryMap the endpoint query options
* @return a string of the component route url
* @throws URISyntaxException - is thrown if uri has invalid syntax.
*/
public static String createRestConsumerUrl(String componentName, String verb, String path, Map queryMap)
throws URISyntaxException {
String query = URISupport.createQueryString(queryMap);
return applyFormatAndQuery("%s:%s:%s", query, componentName, verb, path);
}
/**
*
* Creates the Rest consumers url based on component and url options.
*
* @param componentName the name of the rest component
* @param path the HTTP path of the route
* @param queryMap the endpoint query options
* @return a string of the component route url
* @throws URISyntaxException - is thrown if uri has invalid syntax.
*/
public static String createRestConsumerUrl(String componentName, String path, Map queryMap)
throws URISyntaxException {
String query = URISupport.createQueryString(queryMap);
return applyFormatAndQuery("%s:/%s", query, componentName, path);
}
/**
*
* Creates the Rest consumers url based on component and url options.
*
* @param componentName the name of the rest component
* @param scheme the scheme of the HTTP route http/https
* @param host the host of the HTTP route
* @param port the port the route will be exposed through
* @param path the HTTP path of the route
* @param queryMap the endpoint query options
* @return a string of the component route url
* @throws URISyntaxException - is thrown if uri has invalid syntax.
*/
public static String createRestConsumerUrl(
String componentName, String scheme, String host, int port, String path, Map queryMap)
throws URISyntaxException {
String query = URISupport.createQueryString(queryMap);
return applyFormatAndQuery("%s:%s://%s:%s/%s", query, componentName, scheme, host, port, path);
}
private static String applyFormatAndQuery(String format, String query, Object... formatOptions) {
// get the endpoint
StringBuilder urlBuilder = new StringBuilder(String.format(format, formatOptions));
if (!query.isEmpty()) {
urlBuilder.append("?");
urlBuilder.append(query);
}
return urlBuilder.toString();
}
}
