/*
 * Copyright (c) 2013, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package org.glassfish.jersey.message.internal;

import java.net.URI;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import jakarta.ws.rs.core.Link;
import jakarta.ws.rs.core.UriBuilder;

import org.glassfish.jersey.uri.UriTemplate;
import org.glassfish.jersey.uri.internal.JerseyUriBuilder;

Jersey implementation of JAX-RS Link contract.
Author:Marek Potociar
/** * Jersey implementation of {@link jakarta.ws.rs.core.Link JAX-RS Link} contract. * * @author Marek Potociar */
public final class JerseyLink extends jakarta.ws.rs.core.Link {
Underlying builder for link's URI.
/** * Underlying builder for link's URI. */
private final URI uri;
A map for all the link parameters such as "rel", "type", etc.
/** * A map for all the link parameters such as "rel", "type", etc. */
private final Map<String, String> params;
Jersey implementation of JAX-RS Link.Builder contract.
/** * Jersey implementation of {@link jakarta.ws.rs.core.Link.Builder JAX-RS Link.Builder} contract. */
public static class Builder implements jakarta.ws.rs.core.Link.Builder {
Underlying builder for link's URI.
/** * Underlying builder for link's URI. */
private UriBuilder uriBuilder = new JerseyUriBuilder();
Base URI for resolution of a link URI (if relative).
/** * Base URI for resolution of a link URI (if relative). */
private URI baseUri = null;
A map for all the link parameters such as "rel", "type", etc.
/** * A map for all the link parameters such as "rel", "type", etc. */
private Map<String, String> params = new HashMap<String, String>(); @Override public Builder link(jakarta.ws.rs.core.Link link) { uriBuilder.uri(link.getUri()); params.clear(); params.putAll(link.getParams()); return this; } @Override public Builder link(String link) { LinkProvider.initBuilder(this, link); return this; } @Override public Builder uri(URI uri) { this.uriBuilder = UriBuilder.fromUri(uri); return this; } @Override public Builder uri(String uri) { this.uriBuilder = UriBuilder.fromUri(uri); return this; } @Override public Builder uriBuilder(UriBuilder uriBuilder) { this.uriBuilder = UriBuilder.fromUri(uriBuilder.toTemplate()); return this; } @Override public Link.Builder baseUri(URI uri) { this.baseUri = uri; return this; } @Override public Link.Builder baseUri(String uri) { this.baseUri = URI.create(uri); return this; } @Override public Builder rel(String rel) { final String rels = params.get(REL); param(REL, rels == null ? rel : rels + " " + rel); return this; } @Override public Builder title(String title) { param(TITLE, title); return this; } @Override public Builder type(String type) { param(TYPE, type); return this; } @Override public Builder param(String name, String value) { if (name == null || value == null) { throw new IllegalArgumentException("Link parameter name or value is null"); } params.put(name, value); return this; } @Override public JerseyLink build(Object... values) { final URI linkUri = resolveLinkUri(values); return new JerseyLink(linkUri, Collections.unmodifiableMap(new HashMap<String, String>(params))); } @Override public Link buildRelativized(URI uri, Object... values) { final URI linkUri = UriTemplate.relativize(uri, resolveLinkUri(values)); return new JerseyLink(linkUri, Collections.unmodifiableMap(new HashMap<String, String>(params))); } private URI resolveLinkUri(Object[] values) { final URI linkUri = uriBuilder.build(values); if (baseUri == null || linkUri.isAbsolute()) { return UriTemplate.normalize(linkUri); } return UriTemplate.resolve(baseUri, linkUri); } } private JerseyLink(URI uri, Map<String, String> params) { this.uri = uri; this.params = params; } @Override public URI getUri() { return uri; } @Override public UriBuilder getUriBuilder() { return new JerseyUriBuilder().uri(uri); } @Override public String getRel() { return params.get(REL); } @Override public List<String> getRels() { final String rels = params.get(REL); return rels == null ? Collections.<String>emptyList() : Arrays.asList(rels.split(" +")); } @Override public String getTitle() { return params.get(TITLE); } @Override public String getType() { return params.get(TYPE); } @Override public Map<String, String> getParams() { return params; } @Override public String toString() { return LinkProvider.stringfy(this); } @Override public boolean equals(Object other) { if (this == other) { return true; } if (other instanceof Link) { final Link otherLink = (Link) other; return uri.equals(otherLink.getUri()) && params.equals(otherLink.getParams()); } return false; } @Override public int hashCode() { int hash = 3; hash = 89 * hash + (this.uri != null ? this.uri.hashCode() : 0); hash = 89 * hash + (this.params != null ? this.params.hashCode() : 0); return hash; } }