/*
* 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 java.util.
TreeMap;
import io.undertow.server.
HttpServerExchange;
import io.undertow.util.
PathMatcher;
/**
* @author Stuart Douglas
*/
public class
PathPrefixPredicate implements
Predicate {
private final
PathMatcher<
Boolean>
pathMatcher;
PathPrefixPredicate(final
String...
paths) {
PathMatcher<
Boolean>
matcher = new
PathMatcher<>();
for(
String path :
paths) {
if(!
path.
startsWith("/")) {
matcher.
addPrefixPath("/" +
path,
Boolean.
TRUE);
} else {
matcher.
addPrefixPath(
path,
Boolean.
TRUE);
}
}
this.
pathMatcher =
matcher;
}
@
Override
public boolean
resolve(final
HttpServerExchange value) {
final
String relativePath =
value.
getRelativePath();
PathMatcher.
PathMatch<
Boolean>
result =
pathMatcher.
match(
relativePath);
boolean
matches =
Boolean.
TRUE.
equals(
result.
getValue());
if(
matches) {
Map<
String,
Object>
context =
value.
getAttachment(
PREDICATE_CONTEXT);
if(
context == null) {
value.
putAttachment(
PREDICATE_CONTEXT,
context = new
TreeMap<>());
}
context.
put("remaining",
result.
getRemaining());
}
return
matches;
}
public static class
Builder implements
PredicateBuilder {
@
Override
public
String name() {
return "path-prefix";
}
@
Override
public
Map<
String,
Class<?>>
parameters() {
return
Collections.<
String,
Class<?>>
singletonMap("path",
String[].class);
}
@
Override
public
Set<
String>
requiredParameters() {
return
Collections.
singleton("path");
}
@
Override
public
String defaultParameter() {
return "path";
}
@
Override
public
Predicate build(final
Map<
String,
Object>
config) {
String[]
path = (
String[])
config.
get("path");
return new
PathPrefixPredicate(
path);
}
}
}