WeiboParameters.java

package com.shaweibo.biu.dao;

import android.graphics.Bitmap;

import com.squareup.okhttp.FormEncodingBuilder;
import com.squareup.okhttp.RequestBody;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Set;


public class WeiboParameters extends HashMap<String, Object>
{
	
	// URL Encode
	public String encode() {
		StringBuilder str = new StringBuilder();
		Set<String> keys = keySet();
		boolean first = true;
		
		for (String key : keys) {
			Object value = get(key);
			
			if (value instanceof Bitmap) {
				// Bitmap detected, we should use multipart encode instead
				return null;
			} else {
				if (first) {
					first = false;
				} else {
					str.append("&");
				}
				
				try {
					str.append(URLEncoder.encode(key, "UTF-8")).append("=").append(URLEncoder.encode(value.toString(), "UTF-8"));
				} catch (UnsupportedEncodingException e) {
					
				}
			}
		}
		
		return str.toString();
	}

	public RequestBody convertToRequestBody(){


		Set<String> keys = keySet();

		FormEncodingBuilder builder = new FormEncodingBuilder();


		for (String key : keys) {
			Object value = get(key);

			try {
					builder.add(key,URLEncoder.encode(value.toString(), "UTF-8"));
			} catch (UnsupportedEncodingException e) {

				e.printStackTrace();

			}
		}
		return builder.build();

	}
	
	public Object[] toBoundaryMsg() {
		String b = getBoundaryStr();
		StringBuilder str = new StringBuilder();
		str.append("--").append(b).append("\r\n");
		
		Set<String> keys = keySet();
		Bitmap bitmap = null;
		String bmKey = null;
		for (String key : keys) {
			Object value = get(key);
			
			if (value instanceof Bitmap) {
				bitmap = (Bitmap) value;
				bmKey = key;
			} else {
				str.append("Content-Disposition: form-data; name=\"");
				str.append(key).append("\"\r\n\r\n");
				str.append(value).append("\r\n--");
				str.append(b).append("\r\n");
			}
		}
		
		if (bitmap != null) {
			str.append("Content-Disposition: form-data; name=\"");
			str.append(bmKey).append("\"; filename=\"").append(System.currentTimeMillis()).append(".jpg");
			str.append("\"\r\nContent-Type: image/jpeg\r\n\r\n");
		}
		
		return new Object[]{b, bitmap, str.toString()};
	}
	
	private String getBoundaryStr() {
		return String.valueOf(System.currentTimeMillis() * Math.random() % 1024);
	}
}