All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.glassfish.jersey.message.internal.BasicTypesMessageProvider Maven / Gradle / Ivy

Go to download

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.

There is a newer version: 3.1.6
Show newest version
/*
 * Copyright (c) 2012, 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.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Constructor;
import java.lang.reflect.Type;
import java.security.AccessController;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

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

import jakarta.inject.Singleton;

import org.glassfish.jersey.internal.LocalizationMessages;
import org.glassfish.jersey.internal.util.ReflectionHelper;

/**
 * The basic types message body provider for {@link MediaType#TEXT_PLAIN} media type.
 * 

 * The provider processes primitive types and also other {@link Number} implementations like {@link java.math.BigDecimal},
 * {@link java.math.BigInteger}, {@link AtomicInteger},  {@link AtomicLong} and all other implementations which has one String
 * argument constructor.
 *
 * @author Miroslav Fuksa
 * @author Marek Potociar
 */
@Produces({"text/plain"})
@Consumes({"text/plain"})
@Singleton
final class BasicTypesMessageProvider extends AbstractMessageReaderWriterProvider {

    private static enum PrimitiveTypes {
        BYTE(Byte.class, byte.class) {
            @Override
            public Object convert(String s) {
                return Byte.valueOf(s);
            }
        },
        SHORT(Short.class, short.class) {
            @Override
            public Object convert(String s) {
                return Short.valueOf(s);
            }
        },
        INTEGER(Integer.class, int.class) {
            @Override
            public Object convert(String s) {
                return Integer.valueOf(s);
            }
        },
        LONG(Long.class, long.class) {
            @Override
            public Object convert(String s) {
                return Long.valueOf(s);
            }
        },
        FLOAT(Float.class, float.class) {
            @Override
            public Object convert(String s) {
                return Float.valueOf(s);
            }
        },
        DOUBLE(Double.class, double.class) {
            @Override
            public Object convert(String s) {
                return Double.valueOf(s);
            }
        },
        BOOLEAN(Boolean.class, boolean.class) {
            @Override
            public Object convert(String s) {
                return Boolean.valueOf(s);
            }
        },
        CHAR(Character.class, char.class) {
            @Override
            public Object convert(String s) {
                if (s.length() != 1) {
                    throw new MessageBodyProcessingException(LocalizationMessages
                            .ERROR_ENTITY_PROVIDER_BASICTYPES_CHARACTER_MORECHARS());
                }
                return s.charAt(0);
            }
        };

        public static PrimitiveTypes forType(Class type) {
            for (PrimitiveTypes primitive : PrimitiveTypes.values()) {
                if (primitive.supports(type)) {
                    return primitive;
                }
            }
            return null;
        }

        private final Class wrapper;
        private final Class primitive;

        private PrimitiveTypes(Class wrapper, Class primitive) {
            this.wrapper = wrapper;
            this.primitive = primitive;
        }

        public abstract Object convert(String s);

        public boolean supports(Class type) {
            return type == wrapper || type == primitive;
        }
    }

    @Override
    public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return canProcess(type);
    }

    @Override
    public Object readFrom(
            Class type,
            Type genericType,
            Annotation[] annotations,
            MediaType mediaType,
            MultivaluedMap httpHeaders,
            InputStream entityStream) throws IOException, WebApplicationException {
        final String entityString = readFromAsString(entityStream, mediaType);
        if (entityString.isEmpty()) {
            throw new NoContentException(LocalizationMessages.ERROR_READING_ENTITY_MISSING());
        }
        final PrimitiveTypes primitiveType = PrimitiveTypes.forType(type);
        if (primitiveType != null) {
            return primitiveType.convert(entityString);
        }

        final Constructor constructor = AccessController.doPrivileged(ReflectionHelper.getStringConstructorPA(type));
        if (constructor != null) {
            try {
                return type.cast(constructor.newInstance(entityString));
            } catch (Exception e) {
                throw new MessageBodyProcessingException(LocalizationMessages.ERROR_ENTITY_PROVIDER_BASICTYPES_CONSTRUCTOR(type));
            }
        }

        if (AtomicInteger.class.isAssignableFrom(type)) {
            return new AtomicInteger((Integer) PrimitiveTypes.INTEGER.convert(entityString));
        }

        if (AtomicLong.class.isAssignableFrom(type)) {
            return new AtomicLong((Long) PrimitiveTypes.LONG.convert(entityString));
        }

        throw new MessageBodyProcessingException(LocalizationMessages.ERROR_ENTITY_PROVIDER_BASICTYPES_UNKWNOWN(type));
    }

    @Override
    public boolean isWriteable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return canProcess(type);

    }

    private boolean canProcess(Class type) {
        if (PrimitiveTypes.forType(type) != null) {
            return true;
        }
        if (Number.class.isAssignableFrom(type)) {
            final Constructor constructor = AccessController.doPrivileged(ReflectionHelper.getStringConstructorPA(type));
            if (constructor != null) {
                return true;
            }
            if (AtomicInteger.class.isAssignableFrom(type) || AtomicLong.class.isAssignableFrom(type)) {
                return true;
            }
        }

        return false;
    }

    @Override
    public long getSize(Object t, Class type, Type genericType, Annotation[] annotations, MediaType mediaType) {
        return t.toString().length();
    }

    @Override
    public void writeTo(
            Object o,
            Class type,
            Type genericType,
            Annotation[] annotations,
            MediaType mediaType,
            MultivaluedMap httpHeaders,
            OutputStream entityStream) throws IOException, WebApplicationException {
        writeToAsString(o.toString(), entityStream, mediaType);
    }
}
 















© 2015 - 2024 Weber Informatics LLC | Privacy Policy