org.apache.flink.runtime.rest.handler.RouterHandler Maven / Gradle / Ivy
/*
* 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.flink.runtime.rest.handler;
import org.apache.flink.runtime.rest.handler.util.HandlerUtils;
import org.apache.flink.runtime.rest.messages.ErrorResponseBody;
import org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext;
import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpRequest;
import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpResponseStatus;
import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.router.Handler;
import org.apache.flink.shaded.netty4.io.netty.handler.codec.http.router.Router;
import java.util.Map;
import static java.util.Objects.requireNonNull;
/**
* This class is an extension of {@link Handler} that replaces the standard error response to be identical with those
* sent by the {@link AbstractRestHandler}.
*/
public class RouterHandler extends Handler {
private final Map responseHeaders;
public RouterHandler(Router router, final Map responseHeaders) {
super(router);
this.responseHeaders = requireNonNull(responseHeaders);
}
@Override
protected void respondNotFound(ChannelHandlerContext ctx, HttpRequest request) {
HandlerUtils.sendErrorResponse(
ctx,
request,
new ErrorResponseBody("Not found."),
HttpResponseStatus.NOT_FOUND,
responseHeaders);
}
}