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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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 io.netty.handler.codec.http.multipart;

import io.netty.handler.codec.http.HttpRequest;
import io.netty.util.internal.PlatformDependent;

import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

/**
 * Default factory giving Attribute and FileUpload according to constructor
 *
 * Attribute and FileUpload could be :

 * - MemoryAttribute, DiskAttribute or MixedAttribute

 * - MemoryFileUpload, DiskFileUpload or MixedFileUpload

 * according to the constructor.
 */
public class DefaultHttpDataFactory implements HttpDataFactory {
    /**
     * Proposed default MINSIZE as 16 KB.
     */
    public static final long MINSIZE = 0x4000;

    private final boolean useDisk;

    private final boolean checkSize;

    private long minSize;

    /**
     * Keep all HttpDatas until cleanAllHttpDatas() is called.
     */
    private final Map> requestFileDeleteMap = PlatformDependent.newConcurrentHashMap();

    /**
     * HttpData will be in memory if less than default size (16KB).
     * The type will be Mixed.
     */
    public DefaultHttpDataFactory() {
        useDisk = false;
        checkSize = true;
        minSize = MINSIZE;
    }

    /**
     * HttpData will be always on Disk if useDisk is True, else always in Memory if False
     */
    public DefaultHttpDataFactory(boolean useDisk) {
        this.useDisk = useDisk;
        checkSize = false;
    }

    /**
     * HttpData will be on Disk if the size of the file is greater than minSize, else it
     * will be in memory. The type will be Mixed.
     */
    public DefaultHttpDataFactory(long minSize) {
        useDisk = false;
        checkSize = true;
        this.minSize = minSize;
    }

    /**
     * @return the associated list of Files for the request
     */
    private List getList(HttpRequest request) {
        List list = requestFileDeleteMap.get(request);
        if (list == null) {
            list = new ArrayList();
            requestFileDeleteMap.put(request, list);
        }
        return list;
    }

    @Override
    public Attribute createAttribute(HttpRequest request, String name) {
        if (useDisk) {
            Attribute attribute = new DiskAttribute(name);
            List fileToDelete = getList(request);
            fileToDelete.add(attribute);
            return attribute;
        }
        if (checkSize) {
            Attribute attribute = new MixedAttribute(name, minSize);
            List fileToDelete = getList(request);
            fileToDelete.add(attribute);
            return attribute;
        }
        return new MemoryAttribute(name);
    }

    @Override
    public Attribute createAttribute(HttpRequest request, String name, String value) {
        if (useDisk) {
            Attribute attribute;
            try {
                attribute = new DiskAttribute(name, value);
            } catch (IOException e) {
                // revert to Mixed mode
                attribute = new MixedAttribute(name, value, minSize);
            }
            List fileToDelete = getList(request);
            fileToDelete.add(attribute);
            return attribute;
        }
        if (checkSize) {
            Attribute attribute = new MixedAttribute(name, value, minSize);
            List fileToDelete = getList(request);
            fileToDelete.add(attribute);
            return attribute;
        }
        try {
            return new MemoryAttribute(name, value);
        } catch (IOException e) {
            throw new IllegalArgumentException(e);
        }
    }

    @Override
    public FileUpload createFileUpload(HttpRequest request, String name, String filename,
            String contentType, String contentTransferEncoding, Charset charset,
            long size) {
        if (useDisk) {
            FileUpload fileUpload = new DiskFileUpload(name, filename, contentType,
                    contentTransferEncoding, charset, size);
            List fileToDelete = getList(request);
            fileToDelete.add(fileUpload);
            return fileUpload;
        }
        if (checkSize) {
            FileUpload fileUpload = new MixedFileUpload(name, filename, contentType,
                    contentTransferEncoding, charset, size, minSize);
            List fileToDelete = getList(request);
            fileToDelete.add(fileUpload);
            return fileUpload;
        }
        return new MemoryFileUpload(name, filename, contentType,
                contentTransferEncoding, charset, size);
    }

    @Override
    public void removeHttpDataFromClean(HttpRequest request, InterfaceHttpData data) {
        if (data instanceof HttpData) {
            List fileToDelete = getList(request);
            fileToDelete.remove(data);
        }
    }

    @Override
    public void cleanRequestHttpDatas(HttpRequest request) {
        List fileToDelete = requestFileDeleteMap.remove(request);
        if (fileToDelete != null) {
            for (HttpData data: fileToDelete) {
                data.delete();
            }
            fileToDelete.clear();
        }
    }

    @Override
    public void cleanAllHttpDatas() {
        Iterator>> i = requestFileDeleteMap.entrySet().iterator();
        while (i.hasNext()) {
            Entry> e = i.next();
            i.remove();

            List fileToDelete = e.getValue();
            if (fileToDelete != null) {
                for (HttpData data : fileToDelete) {
                    data.delete();
                }
                fileToDelete.clear();
            }
        }
    }
}