org.yaoha.OsmNodeUploadTask.java Source code

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Here is the source code for org.yaoha.OsmNodeUploadTask.java

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/*
 *  This file is part of YAOHA.
 *
 *  YAOHA is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  YAOHA is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with YAOHA.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  Copyright 2012 Stefan Hobohm, Lutz Reinhardt, Matthias Uschok
 *
 */

package org.yaoha;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;

import oauth.signpost.exception.OAuthCommunicationException;
import oauth.signpost.exception.OAuthExpectationFailedException;
import oauth.signpost.exception.OAuthMessageSignerException;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;

import android.os.AsyncTask;

public class OsmNodeUploadTask extends AsyncTask<OsmNode, Void, String> {
    OsmNode currentNode;
    ApiConnector connector;
    String changesetId;
    OsmNodeUploadListener receiver;

    @Override
    protected String doInBackground(OsmNode... params) {
        if (params.length > 1)
            return "You must not start this task with more than one node";
        this.currentNode = params[0];
        connector = new ApiConnector();

        HttpResponse createResponse = null;
        try {
            createResponse = connector.createNewChangeset();
        } catch (ClientProtocolException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (OAuthMessageSignerException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (OAuthExpectationFailedException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (OAuthCommunicationException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } /*catch (Exception e) {
          // ClientProtocolException
          // IOException
          return "Creation of changeset failed";
          }*/
        if (createResponse.getStatusLine().getStatusCode() != 200) {
            if (createResponse.getStatusLine().getStatusCode() == 401) {
                return "Authentication failed";
            }
            return "Creation of changeset failed: Status " + createResponse.getStatusLine().getStatusCode();
        }

        try {
            changesetId = inputStreamToString(createResponse.getEntity().getContent());
        } catch (Exception e) {
            return "Something went horribly wrong! Call your doctor, pack your bags and leave town!";
        }

        HttpResponse uploadResponse = null;
        try {
            uploadResponse = connector.putNode(changesetId, currentNode);
        } catch (ClientProtocolException e) {
            return "Uploading node failed";
        } catch (IOException e) {
            return "Uploading node failed";
        } catch (ParserConfigurationException e) {
            return "Uploading node failed: Couldn't serialize node object";
        } catch (TransformerException e) {
            return "Uploading node failed: Couldn't serialize node object";
        } catch (OAuthMessageSignerException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (OAuthExpectationFailedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (OAuthCommunicationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        if (uploadResponse.getStatusLine().getStatusCode() != 200) {
            String uploadResponseString = "";
            try {
                uploadResponseString = inputStreamToString(uploadResponse.getEntity().getContent());
            } catch (Exception e) {
                return "Couldn't read upload response";
            }
            return "Uploading node failed: " + uploadResponseString;
        }

        try {
            connector.closeChangeset(changesetId);
        } catch (ClientProtocolException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (OAuthMessageSignerException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (OAuthExpectationFailedException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (OAuthCommunicationException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        } /*catch (Exception e) {
          // ClientProtocolException
          // IOException
          return "Creation of changeset failed";
          }*/

        return "Successfully uploaded node";
    }

    public void addReceiver(OsmNodeUploadListener receiver) {
        // There'll be only one receiver anyhow
        if (this.receiver == null) {
            this.receiver = receiver;
        }
    }

    @Override
    protected void onPostExecute(String result) {
        super.onPostExecute(result);
        receiver.onNodeUploaded(result);
    }

    private String inputStreamToString(InputStream in) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String returnString = "";
        String line = "";
        while ((line = reader.readLine()) != null) {
            returnString += line;
        }
        return returnString;
    }

}