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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The SFC 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.openqa.selenium.grid.web;
import static com.google.common.net.MediaType.JSON_UTF_8;
import static java.net.HttpURLConnection.HTTP_INTERNAL_ERROR;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.base.Throwables;
import com.google.common.collect.ImmutableMap;
import org.openqa.selenium.json.Json;
import org.openqa.selenium.remote.ErrorCodes;
import org.openqa.selenium.remote.http.HttpRequest;
import org.openqa.selenium.remote.http.HttpResponse;
import java.util.Map;
import java.util.Objects;
public class ErrorHandler implements CommandHandler {
private final static ErrorCodes errors = new ErrorCodes();
private final Json json;
private final Throwable throwable;
public ErrorHandler(Json json, Throwable throwable) {
this.json = Objects.requireNonNull(json);
this.throwable = Objects.requireNonNull(throwable);
}
@Override
public void execute(HttpRequest req, HttpResponse resp) {
resp.setStatus(HTTP_INTERNAL_ERROR);
resp.setHeader("Cache-Control", "none");
resp.setHeader("Content-Type", JSON_UTF_8.toString());
Map value = ImmutableMap.of(
"value", ImmutableMap.of(
// W3C first
"message", throwable.getMessage(),
"error", errors.toState(errors.toStatusCode(throwable)),
"stacktrace", Throwables.getStackTraceAsString(throwable),
// JSON Wire Protocol second
"class", throwable.getClass().getName(),
"stackTrace", throwable.getStackTrace()
));
resp.setContent(json.toJson(value).getBytes(UTF_8));
}
}