/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.predicate;
import java.util.
Collections;
import java.util.
Map;
import java.util.
Set;
import io.undertow.server.
HttpServerExchange;
import io.undertow.util.
Headers;
/**
* Predicate that returns true if the Content-Size of a request is above a
* given value.
*
* @author Stuart Douglas
*/
public class
MaxContentSizePredicate implements
Predicate {
private final long
maxSize;
MaxContentSizePredicate(final long
maxSize) {
this.
maxSize =
maxSize;
}
@
Override
public boolean
resolve(final
HttpServerExchange value) {
final
String length =
value.
getResponseHeaders().
getFirst(
Headers.
CONTENT_LENGTH);
if (
length == null) {
return false;
}
return
Long.
parseLong(
length) >
maxSize;
}
public static class
Builder implements
PredicateBuilder {
@
Override
public
String name() {
return "max-content-size";
}
@
Override
public
Map<
String,
Class<?>>
parameters() {
return
Collections.<
String,
Class<?>>
singletonMap("value",
Long.class);
}
@
Override
public
Set<
String>
requiredParameters() {
return
Collections.
singleton("value");
}
@
Override
public
String defaultParameter() {
return "value";
}
@
Override
public
Predicate build(final
Map<
String,
Object>
config) {
Long max = (
Long)
config.
get("value");
return new
MaxContentSizePredicate(
max);
}
}
}