| /** |
| * |
| * Copyright 2009-2011 Rickard Öberg AB |
| * |
| * 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 org.apache.zest.library.rest.common.link; |
| |
| import org.apache.zest.functional.Function; |
| import org.apache.zest.functional.Iterables; |
| import org.apache.zest.functional.Specification; |
| |
| /** |
| * Helper methods for links |
| */ |
| public final class LinksUtil |
| { |
| public static Specification<Link> withId(final String id) |
| { |
| return new Specification<Link>() |
| { |
| @Override |
| public boolean satisfiedBy(Link link ) |
| { |
| return link.id().get().equals(id); |
| } |
| }; |
| } |
| |
| public static Specification<Link> withText(final String text) |
| { |
| return new Specification<Link>() |
| { |
| @Override |
| public boolean satisfiedBy(Link link ) |
| { |
| return link.text().get().equals(text); |
| } |
| }; |
| } |
| |
| public static Specification<Link> withRel(final String rel) |
| { |
| return new Specification<Link>() |
| { |
| @Override |
| public boolean satisfiedBy(Link link ) |
| { |
| return link.rel().get().equals(rel); |
| } |
| }; |
| } |
| |
| public static Specification<Link> withClass(final String clazz) |
| { |
| return new Specification<Link>() |
| { |
| @Override |
| public boolean satisfiedBy(Link link ) |
| { |
| String classes = link.classes().get(); |
| return classes != null && classes.contains( clazz ); |
| } |
| }; |
| } |
| |
| public static Link withRel(String rel, Links links) |
| { |
| return Iterables.single( Iterables.filter( withRel( rel ), links.links().get() ) ); |
| } |
| |
| public static Link withId(String id, Links links) |
| { |
| return Iterables.single( Iterables.filter( withId( id ), links.links().get() ) ); |
| } |
| |
| public static Function<Link, String> toRel() |
| { |
| return new Function<Link, String>() |
| { |
| @Override |
| public String map(Link link ) |
| { |
| return link.rel().get(); |
| } |
| }; |
| } |
| } |