PostRecordTask.java

/*
 * 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.
 */
package com.ztspeech.simutalk2.weibo;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.util.HashMap;
import java.util.Map;

import org.json.JSONException;
import org.json.JSONObject;

import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

import com.ztspeech.simutalk2.R;
import com.ztspeech.weibo.sdk.kaixin.Kaixin;
import com.ztspeech.weibo.sdk.kaixin.KaixinError;
import com.ztspeech.weibo.sdk.kaixin.Util;

public class PostRecordTask extends AsyncTask<Object, Void, Integer> {
	private static final String TAG = "PostRecordTask";
	private static final String RESTAPI_INTERFACE_POSTRECORD = "/records/add.json";
	private Handler handler;
	public ProgressDialog loadingDialog;
	public boolean isCancel = false;
	private Context context;

	public PostRecordTask(Context context) {
		this.context = context;
	}

	@Override
	protected void onPreExecute() {
		showLoading();
	}

	protected Integer doInBackground(Object... params) {
		/*
		 * if (params == null || params.length == 0 || params.length != 5) {
		 * handler.sendEmptyMessage(Constant.RESULT_FAILED_ARG_ERR); return 0; }
		 */

		Kaixin kaixin = (Kaixin) params[0];
		handler = (Handler) params[1];
		String content = (String) params[2];
		InputStream in = (InputStream) params[3];
		try {
			// д�¼�¼
			Bundle bundle = new Bundle();
			bundle.putString("content", content);

			Map<String, Object> photoes = new HashMap<String, Object>();
			photoes.put("filename", in);

			String jsonResult = kaixin.uploadContent(context, RESTAPI_INTERFACE_POSTRECORD, bundle, photoes);

			if (jsonResult == null) {
				handler.sendEmptyMessage(Constant.RESULT_FAILED_NETWORK_ERR);
			} else {
				KaixinError kaixinError = Util.parseRequestError(jsonResult);
				if (kaixinError != null) {
					Message msg = Message.obtain();
					msg.what = Constant.RESULT_FAILED_REQUEST_ERR;
					msg.obj = kaixinError;
					handler.sendMessage(msg);
				} else {
					long rid = getRecordID(jsonResult);
					if (!isCancel) {
						if (rid > 0) {
							handler.sendEmptyMessage(Constant.RESULT_POST_RECORD_OK);
						} else {
							handler.sendEmptyMessage(Constant.RESULT_POST_RECORD_FAILED);
						}
					} else {
						handler.sendEmptyMessage(Constant.RESULT_USER_CANCEL_PROCESS);
					}
				}
			}
		} catch (MalformedURLException e1) {
			Log.e(TAG, "", e1);
			handler.sendEmptyMessage(Constant.RESULT_FAILED_MALFORMEDURL_ERR);
		} catch (IOException e1) {
			Log.e(TAG, "", e1);
			handler.sendEmptyMessage(Constant.RESULT_FAILED_NETWORK_ERR);
		} catch (Exception e1) {
			Log.e(TAG, "", e1);
			handler.sendEmptyMessage(Constant.RESULT_FAILED);
		}
		return 1;
	}

	private long getRecordID(String jsonResult) throws JSONException {
		JSONObject jsonObj = new JSONObject(jsonResult);
		if (jsonObj == null) {
			return 0;
		}

		long rid = jsonObj.optInt("rid");
		return rid;
	}

	@Override
	protected void onCancelled() {
		// TODO Auto-generated method stub
	}

	@Override
	protected void onPostExecute(Integer result) {
		dismissLoading();
	}

	/**
	 * �������ڻ�ȡ���ݵĵ�������ʾ
	 */
	public void dismissLoading() {
		if (loadingDialog != null) {
			loadingDialog.dismiss();
			loadingDialog = null;
		}
	}

	public void cancelRequest() {
		isCancel = true;
	}

	/**
	 * �ֶ�ȡ�����ڻ�ȡ���ݵĵ�������ʾʱ�Ļص�����
	 */
	public void onLoadingCacel() {
		cancelRequest();
		dismissLoading();
	}

	public void showLoading() {
		if (loadingDialog == null) {
			loadingDialog = new ProgressDialog(context, R.style.mydialog);
			loadingDialog.setMessage(context.getString(R.string.loading));
			loadingDialog.setIndeterminate(true);
			loadingDialog.setCancelable(true);
			loadingDialog.setOnCancelListener(new OnCancelListener() {
				@Override
				public void onCancel(DialogInterface dialog) {
					onLoadingCacel();
				}
			});
		}
		isCancel = false;
		loadingDialog.show();
	}
}