/*
* 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.
HashMap;
import java.util.
HashSet;
import java.util.
Map;
import java.util.
Set;
import io.undertow.attribute.
ExchangeAttribute;
import io.undertow.server.
HttpServerExchange;
/**
* Returns true if the request header is present and contains one of the strings to match.
*
* @author Stuart Douglas
*/
public class
ContainsPredicate implements
Predicate {
private final
ExchangeAttribute attribute;
private final
String[]
values;
ContainsPredicate(final
ExchangeAttribute attribute, final
String[]
values) {
this.
attribute =
attribute;
this.
values = new
String[
values.length];
System.
arraycopy(
values, 0, this.
values, 0,
values.length);
}
@
Override
public boolean
resolve(final
HttpServerExchange value) {
String attr =
attribute.
readAttribute(
value);
if (
attr == null) {
return false;
}
for (int
i = 0;
i <
values.length; ++
i) {
if (
attr.
contains(
values[
i])) {
return true;
}
}
return false;
}
public
ExchangeAttribute getAttribute() {
return
attribute;
}
public
String[]
getValues() {
String[]
ret = new
String[
values.length];
System.
arraycopy(
values, 0,
ret, 0,
values.length);
return
ret;
}
public static class
Builder implements
PredicateBuilder {
@
Override
public
String name() {
return "contains";
}
@
Override
public
Map<
String,
Class<?>>
parameters() {
final
Map<
String,
Class<?>>
params = new
HashMap<>();
params.
put("value",
ExchangeAttribute.class);
params.
put("search",
String[].class);
return
params;
}
@
Override
public
Set<
String>
requiredParameters() {
final
Set<
String>
params = new
HashSet<>();
params.
add("value");
params.
add("search");
return
params;
}
@
Override
public
String defaultParameter() {
return null;
}
@
Override
public
Predicate build(final
Map<
String,
Object>
config) {
String[]
search = (
String[])
config.
get("search");
ExchangeAttribute values = (
ExchangeAttribute)
config.
get("value");
return new
ContainsPredicate(
values,
search);
}
}
}