/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.eclipse.aether.transport.apache;

import javax.inject.Inject;
import javax.inject.Named;

import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.spi.connector.transport.http.ChecksumExtractor;
import org.eclipse.aether.spi.connector.transport.http.HttpTransporter;
import org.eclipse.aether.spi.connector.transport.http.HttpTransporterFactory;
import org.eclipse.aether.spi.io.PathProcessor;
import org.eclipse.aether.transfer.NoTransporterException;

import static java.util.Objects.requireNonNull;

/**
 * A transporter factory for repositories using the {@code http:} or {@code https:} protocol. The provided transporters
 * support uploads to WebDAV servers and resumable downloads.
 */
@Named(ApacheTransporterFactory.NAME)
public final class ApacheTransporterFactory implements HttpTransporterFactory {
    public static final String NAME = "apache";

    private float priority = 5.0f;

    private final ChecksumExtractor checksumExtractor;

    private final PathProcessor pathProcessor;

    @Inject
    public ApacheTransporterFactory(ChecksumExtractor checksumExtractor, PathProcessor pathProcessor) {
        this.checksumExtractor = requireNonNull(checksumExtractor, "checksumExtractor");
        this.pathProcessor = requireNonNull(pathProcessor, "pathProcessor");
    }

    @Override
    public float getPriority() {
        return priority;
    }

    /**
     * Sets the priority of this component.
     *
     * @param priority The priority.
     * @return This component for chaining, never {@code null}.
     */
    public ApacheTransporterFactory setPriority(float priority) {
        this.priority = priority;
        return this;
    }

    @Override
    public HttpTransporter newInstance(RepositorySystemSession session, RemoteRepository repository)
            throws NoTransporterException {
        requireNonNull(session, "session cannot be null");
        requireNonNull(repository, "repository cannot be null");

        if (!"http".equalsIgnoreCase(repository.getProtocol()) && !"https".equalsIgnoreCase(repository.getProtocol())) {
            throw new NoTransporterException(repository);
        }

        return new ApacheTransporter(repository, session, checksumExtractor, pathProcessor);
    }
}
