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/**
* Copyright (C) 2013-2014 [email protected]
*
* Licensed 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 net.codestory.http.errors;
import static net.codestory.http.constants.HttpStatus.*;
import java.io.*;
import net.codestory.http.payload.*;
import net.codestory.http.templating.*;
public class ErrorPage {
private final Payload payload;
private final Throwable exception;
public ErrorPage(Payload payload, Throwable exception) {
this.payload = payload;
this.exception = exception;
}
public Payload payload() {
String error = toString(exception);
String filename = filename();
return new Payload("text/html", ModelAndView.of(filename, "ERROR", error), payload.code())
.withHeaders(payload.headers())
.withCookies(payload.cookies());
}
private String filename() {
return (payload.code() == NOT_FOUND) ? "404.html" : "500.html";
}
private static String toString(Throwable error) {
if (error == null) {
return "";
}
Writer string = new StringWriter();
try (PrintWriter message = new PrintWriter(string)) {
error.printStackTrace(message);
}
return string.toString();
}
}
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