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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle (jaxrs-ri.jar). Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from the command line.

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/*
 * Copyright (c) 2010, 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.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;

import jakarta.ws.rs.Consumes;
import jakarta.ws.rs.Produces;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedMap;

import jakarta.inject.Singleton;

import org.glassfish.jersey.message.MessageUtils;

/**
 *
 * @author Paul Sandoz
 */
@Produces({"text/plain", "*/*"})
@Consumes({"text/plain", "*/*"})
@Singleton
public final class ReaderProvider extends AbstractMessageReaderWriterProvider {

    @Override
    public boolean isReadable(final Class type, final Type genericType, final Annotation[] annotations,
                              final MediaType mediaType) {
        return Reader.class == type;
    }

    @Override
    public Reader readFrom(
            final Class type,
            final Type genericType,
            final Annotation[] annotations,
            final MediaType mediaType,
            final MultivaluedMap httpHeaders,
            final InputStream inputStream) throws IOException {

        final EntityInputStream entityStream = EntityInputStream.create(inputStream);
        if (entityStream.isEmpty()) {
            return new BufferedReader(new InputStreamReader(
                    new ByteArrayInputStream(new byte[0]), MessageUtils.getCharset(mediaType)));
        }

        return new BufferedReader(new InputStreamReader(entityStream, getCharset(mediaType)));
    }

    @Override
    public boolean isWriteable(final Class type, final Type genericType, final Annotation[] annotations,
                               final MediaType mediaType) {
        return Reader.class.isAssignableFrom(type);
    }

    @Override
    public void writeTo(
            final Reader t,
            final Class type,
            final Type genericType,
            final Annotation[] annotations,
            final MediaType mediaType,
            final MultivaluedMap httpHeaders,
            final OutputStream entityStream) throws IOException {
        try {
            final OutputStreamWriter out = new OutputStreamWriter(entityStream,
                    getCharset(mediaType));
            writeTo(t, out);
            out.flush();
        } finally {
            t.close();
        }

    }
}