ImmutableRequest.java

/*
 * Copyright 2015 Petr Bouda
 *
 * 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.joyrest.model.request;

import java.security.Principal;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;

import org.joyrest.model.http.HeaderName;
import org.joyrest.model.http.HttpMethod;
import org.joyrest.model.http.PathParam;

public final class ImmutableRequest<E> implements Request<E> {

    private final Request<E> request;

    private ImmutableRequest(Request<E> request) {
        this.request = request;
    }

    /**
     * Creates immutable version of original {@link Request} object
     *
     * @param request the original provider object
     * @param <T> type of an entity in provider object
     * @return immutable provider
     */
    public static <T> ImmutableRequest<T> of(Request<T> request) {
        return new ImmutableRequest<>(request);
    }

    @Override
    public Optional<String> getHeader(HeaderName name) {
        return request.getHeader(name);
    }

    @Override
    public Optional<String> getHeader(String name) {
        return request.getHeader(name);
    }

    @Override
    public Optional<Principal> getPrincipal() {
        return request.getPrincipal();
    }

    @Override
    public Map<HeaderName, String> getHeaders() {
        return request.getHeaders();
    }

    @Override
    public Map<String, PathParam> getPathParams() {
        return request.getPathParams();
    }

    @Override
    public String getPathParam(String name) {
        return request.getPathParam(name);
    }

    @Override
    public Optional<String> getQueryParam(String name) {
        return request.getQueryParam(name);
    }

    @Override
    public Optional<String[]> getQueryParams(String name) {
        return request.getQueryParams(name);
    }

    @Override
    public Map<String, String[]> getQueryParams() {
        return request.getQueryParams();
    }

    @Override
    public HttpMethod getMethod() {
        return request.getMethod();
    }

    @Override
    public String getPath() {
        return request.getPath();
    }

    @Override
    public E getEntity() {
        return request.getEntity();
    }

    @Override
    public int hashCode() {
        return Objects.hash(request);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        final ImmutableRequest<?> other = (ImmutableRequest<?>) obj;
        return Objects.equals(this.request, other.request);
    }
}