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/*
 * Copyright (c) 2021 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.eclipse.angus.mail.util;

import jakarta.mail.util.SharedByteArrayInputStream;
import jakarta.mail.util.StreamProvider;

import java.io.InputStream;
import java.io.OutputStream;

/**
 * Contains the required encoders/decoders and streams required by the API.
 */
public class MailStreamProvider implements StreamProvider {

    /**
     * Public constructor.
     */
    public MailStreamProvider() {
    }

    @Override
    public InputStream inputBase64(InputStream in) {
        return new BASE64DecoderStream(in);
    }

    @Override
    public OutputStream outputBase64(OutputStream out) {
        return new BASE64EncoderStream(out);
    }

    @Override
    public InputStream inputBinary(InputStream in) {
        return in;
    }

    @Override
    public OutputStream outputBinary(OutputStream out) {
        return out;
    }

    @Override
    public OutputStream outputB(OutputStream out) {
        return new BEncoderStream(out);
    }

    @Override
    public InputStream inputQ(InputStream in) {
        return new QDecoderStream(in);
    }

    @Override
    public OutputStream outputQ(OutputStream out, boolean encodingWord) {
        return new QEncoderStream(out, encodingWord);
    }

    @Override
    public LineInputStream inputLineStream(InputStream in, boolean allowutf8) {
        return new LineInputStream(in, allowutf8);
    }

    @Override
    public LineOutputStream outputLineStream(OutputStream out, boolean allowutf8) {
        return new LineOutputStream(out, allowutf8);
    }

    @Override
    public InputStream inputQP(InputStream in) {
        return new QPDecoderStream(in);
    }

    @Override
    public OutputStream outputQP(OutputStream out) {
        return new QPEncoderStream(out);
    }

    @Override
    public InputStream inputSharedByteArray(byte[] bytes) {
        return new SharedByteArrayInputStream(bytes);
    }

    @Override
    public InputStream inputUU(InputStream in) {
        return new UUDecoderStream(in);
    }

    @Override
    public OutputStream outputUU(OutputStream out, String filename) {
        if (filename == null) {
            return new UUEncoderStream(out);
        } else {
            return new UUEncoderStream(out, filename);
        }
    }

}