org.eclipse.equinox.http.servlet.internal.multipart.MultipartSupportPart.java Source code

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Here is the source code for org.eclipse.equinox.http.servlet.internal.multipart.MultipartSupportPart.java

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/*******************************************************************************
 * Copyright (c) 2016 Raymond Aug and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Raymond Aug <raymond.auge@liferay.com> - Bug 497271
 *******************************************************************************/
package org.eclipse.equinox.http.servlet.internal.multipart;

import java.io.*;
import java.util.*;
import javax.servlet.http.Part;
import org.apache.commons.fileupload.FileItemHeaders;
import org.apache.commons.fileupload.disk.DiskFileItem;

public class MultipartSupportPart implements Part {

    public MultipartSupportPart(DiskFileItem item) {
        this.item = item;
        this.headers = item.getHeaders();
    }

    @Override
    public InputStream getInputStream() throws IOException {
        return item.getInputStream();
    }

    @Override
    public String getContentType() {
        return item.getContentType();
    }

    @Override
    public String getName() {
        return item.getFieldName();
    }

    @Override
    public String getSubmittedFileName() {
        return item.getName();
    }

    @Override
    public long getSize() {
        return item.getSize();
    }

    @Override
    public void write(String fileName) throws IOException {
        try {
            item.write(new File(item.getStoreLocation(), fileName));
        } catch (Exception e) {
            throw new IOException(e);
        }
    }

    @Override
    public void delete() {
        item.delete();
    }

    @Override
    public String getHeader(String name) {
        if (headers == null) {
            return null;
        }
        return headers.getHeader(name);
    }

    @Override
    public Collection<String> getHeaders(String name) {
        if (headers == null) {
            return Collections.emptyList();
        }
        return new IteratorCollection(headers.getHeaders(name));
    }

    @Override
    public Collection<String> getHeaderNames() {
        if (headers == null) {
            return Collections.emptyList();
        }
        return new IteratorCollection(headers.getHeaderNames());
    }

    private final DiskFileItem item;
    private final FileItemHeaders headers;

    private class IteratorCollection extends AbstractList<String> {

        public IteratorCollection(Iterator<String> iterator) {
            this.collection = new ArrayList<String>();
            while (iterator.hasNext()) {
                collection.add(iterator.next());
            }
        }

        @Override
        public String get(int index) {
            return collection.get(index);
        }

        @Override
        public int size() {
            return collection.size();
        }

        private List<String> collection;

    }

}