Android Volley 2015-01-15 Multipart Request with Upload Progress

Android Volley 2015-01-15 Multipart Request with Upload Progress

package com.az.custom.request;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.HttpEntity;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.util.CharsetUtils;

import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyLog;
import com.beusoft.app.AppContext;

public class MultipartRequest extends Request<String> {

	MultipartEntityBuilder entity = MultipartEntityBuilder.create();
	HttpEntity httpentity;
	private String FILE_PART_NAME = "files";

	private final Response.Listener<String> mListener;
	private final File mFilePart;
	private final Map<String, String> mStringPart;
	private Map<String, String> headerParams;
	private final MultipartProgressListener multipartProgressListener;
	private long fileLength = 0L;

	public MultipartRequest(String url, Response.ErrorListener errorListener,
			Response.Listener<String> listener, File file, long fileLength,
			Map<String, String> mStringPart,
			final Map<String, String> headerParams, String partName,
			MultipartProgressListener progLitener) {
		super(Method.POST, url, errorListener);

		this.mListener = listener;
		this.mFilePart = file;
		this.fileLength = fileLength;
		this.mStringPart = mStringPart;
		this.headerParams = headerParams;
		this.FILE_PART_NAME = partName;
		this.multipartProgressListener = progLitener;

		entity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
		try {
			entity.setCharset(CharsetUtils.get("UTF-8"));
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
		}
		buildMultipartEntity();
		httpentity = entity.build();
	}

	// public void addStringBody(String param, String value) {
	// if (mStringPart != null) {
	// mStringPart.put(param, value);
	// }
	// }

	private void buildMultipartEntity() {
		entity.addPart(FILE_PART_NAME, new FileBody(mFilePart, ContentType.create("image/gif"), mFilePart.getName()));
		if (mStringPart != null) {
			for (Map.Entry<String, String> entry : mStringPart.entrySet()) {
				entity.addTextBody(entry.getKey(), entry.getValue());
			}
		}
	}

	@Override
	public String getBodyContentType() {
		return httpentity.getContentType().getValue();
	}

	@Override
	public byte[] getBody() throws AuthFailureError {
		ByteArrayOutputStream bos = new ByteArrayOutputStream();
		try {
			httpentity.writeTo(new CountingOutputStream(bos, fileLength,
					multipartProgressListener));
		} catch (IOException e) {
			VolleyLog.e("IOException writing to ByteArrayOutputStream");
		}
		return bos.toByteArray();
	}

	@Override
	protected Response<String> parseNetworkResponse(NetworkResponse response) {
	
		try {
//			System.out.println("Network Response "+ new String(response.data, "UTF-8"));
			return Response.success(new String(response.data, "UTF-8"),
					getCacheEntry());
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			// fuck it, it should never happen though
			return Response.success(new String(response.data), getCacheEntry());
		}
	}

	@Override
	protected void deliverResponse(String response) {
		mListener.onResponse(response);
	}

	@Override
	public Map<String, String> getHeaders() throws AuthFailureError {

		if (headerParams == null) {
			headerParams = new HashMap<String, String>(1);
			if (AppContext.userPojo != null) {
				headerParams.put("sid", AppContext.userPojo.SID);
			}
			return headerParams;
		} else {
			if (AppContext.userPojo != null) {
				headerParams.put("sid", AppContext.userPojo.SID);
			}
		}

		return headerParams;
	}

	public static interface MultipartProgressListener {
		void transferred(long transfered, int progress);
	}

	public static class CountingOutputStream extends FilterOutputStream {
		private final MultipartProgressListener progListener;
		private long transferred;
		private long fileLength;

		public CountingOutputStream(final OutputStream out, long fileLength,
				final MultipartProgressListener listener) {
			super(out);
			this.fileLength = fileLength;
			this.progListener = listener;
			this.transferred = 0;
		}

		public void write(byte[] b, int off, int len) throws IOException {
			out.write(b, off, len);
			if (progListener != null) {
				this.transferred += len;
				int prog = (int) (transferred * 100 / fileLength);
				this.progListener.transferred(this.transferred, prog);
			}
		}

		public void write(int b) throws IOException {
			out.write(b);
			if (progListener != null) {
				this.transferred++;
				int prog = (int) (transferred * 100 / fileLength);
				this.progListener.transferred(this.transferred, prog);
			}
		}

	}
}