MultipartRequestEntity.java

/*
 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
 *
 * Licensed 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.
 *
 * Contributors:
 *     bstefanescu
 */
package org.nuxeo.ecm.automation.client.jaxrs.impl;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.List;

import javax.activation.DataHandler;
import javax.mail.MessagingException;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMultipart;

import org.apache.http.entity.AbstractHttpEntity;
import org.nuxeo.ecm.automation.client.Constants;
import org.nuxeo.ecm.automation.client.jaxrs.util.BlobDataSource;
import org.nuxeo.ecm.automation.client.model.Blob;
import org.nuxeo.ecm.automation.client.model.HasFile;

/**
 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
 */
public class MultipartRequestEntity extends AbstractHttpEntity {

    protected MimeMultipart mp;

    public MultipartRequestEntity() {
        this(new MimeMultipart("related"));
    }

    public MultipartRequestEntity(String subType) {
        this(new MimeMultipart(subType));
    }

    public MultipartRequestEntity(MimeMultipart mp) {
        this.mp = mp;
        setContentType(mp.getContentType() + "; type=\"" + Constants.CTYPE_REQUEST_NOCHARSET + "\"; start=\"request\"");
    }

    public void setRequest(String content) throws MessagingException {
        MimeBodyPart part = new MimeBodyPart();
        part.setText(content, "UTF-8");
        part.setContentID("request");
        part.setHeader("Content-Type", Constants.CTYPE_REQUEST);
        part.setHeader("Content-Transfer-Encoding", "8bit");
        part.setHeader("Content-Length", Integer.toString(content.length()));
        mp.addBodyPart(part);
    }

    public void setBlob(Blob blob) throws MessagingException, IOException {
        setBlob(blob, "input");
    }

    protected void setBlob(Blob blob, String id) throws MessagingException, IOException {
        MimeBodyPart part = new MimeBodyPart();
        if (blob instanceof HasFile) {
            part.attachFile(((HasFile) blob).getFile());
        } else {
            part.setDataHandler(new DataHandler(new BlobDataSource(blob)));
            part.setFileName(blob.getFileName());
        }
        part.setHeader("Content-Type", blob.getMimeType());
        part.setHeader("Content-Transfer-Encoding", "binary");
        int length = blob.getLength();
        if (length > -1) {
            part.setHeader("Content-Length", Integer.toString(length));
        }
        part.setContentID(id);
        mp.addBodyPart(part);
    }

    public void setBlobs(List<Blob> blobs) throws MessagingException, IOException {
        for (int i = 0, size = blobs.size(); i < size; i++) {
            setBlob(blobs.get(i), "input#" + i);
        }
    }

    public boolean isRepeatable() {
        return false;
    }

    public boolean isStreaming() {
        return false;
    }

    public InputStream getContent() throws IOException, IllegalStateException {
        throw new UnsupportedOperationException("Not a streaming entity");
    }

    public void writeTo(OutputStream arg0) throws IOException {
        try {
            mp.writeTo(arg0);
        } catch (MessagingException e) {
            IOException ioe = new IOException(e.getMessage());
            ioe.initCause(e);
            throw ioe;
        }
    }

    public long getContentLength() {
        return -1;
    }

}