Android Open Source - geocamTalkForAndroid Message Store

From Project

Back to project page geocamTalkForAndroid.

License

The source code is released under:

NASA OPEN SOURCE AGREEMENT VERSION 1.3 THIS OPEN SOURCE AGREEMENT ("AGREEMENT") DEFINES THE RIGHTS OF USE, REPRODUCTION, DISTRIBUTION, MODIFICATION AND REDISTRIBUTION OF CERTAIN COMPUTER SOFTWARE ORI...

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Java Source Code

package gov.nasa.arc.geocam.talk.service;
/*w  w  w.j  a  v a2  s  .  c  om*/
import gov.nasa.arc.geocam.talk.bean.GeoCamTalkMessage;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeSet;

import android.content.res.Resources.NotFoundException;
import android.util.Log;

import com.google.inject.Inject;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.stmt.QueryBuilder;
import com.j256.ormlite.stmt.SelectArg;

/**
 * The Class MessageStore.
 */
public class MessageStore implements IMessageStore {

  /** The dao. */
  private Dao<GeoCamTalkMessage, Integer> dao;
  
  /** The intent helper. */
  private IIntentHelper intentHelper;
  
  /**
   * Instantiates a new message store.
   *
   * @param dbHelper the db helper
   * @param intentHelper the intent helper
   */
  @Inject
  public MessageStore(IDatabaseHelper dbHelper, IIntentHelper intentHelper)
  {
    this.intentHelper = intentHelper;
    
    try {
      this.dao = dbHelper.getGeoCamTalkMessageDao();
    } catch (SQLException e) {
      Log.e("GeoCam Talk", e.toString());
    }
  }
  
  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#synchronize()
   */
  @Override
  public void synchronize() {
    this.intentHelper.Synchronize();
  }
  
  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#getAllLocalMessages()
   */
  @Override
  public List<GeoCamTalkMessage> getAllLocalMessages() throws SQLException {
    QueryBuilder<GeoCamTalkMessage, Integer> qb = dao.queryBuilder();
    qb.where().eq(GeoCamTalkMessage.IS_SYNCHRONIZED_FIELD_NAME, false);
    
    SortedSet<GeoCamTalkMessage> hash = 
      new TreeSet<GeoCamTalkMessage>(Collections.reverseOrder());
    hash.addAll(dao.query(qb.prepare()));
    
    return new ArrayList<GeoCamTalkMessage>(hash);
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#getAllMessages()
   */
  @Override
  public List<GeoCamTalkMessage> getAllMessages() throws SQLException {
    SortedSet<GeoCamTalkMessage> hash = 
      new TreeSet<GeoCamTalkMessage>(Collections.reverseOrder());
    hash.addAll(dao.queryForAll());
    return new ArrayList<GeoCamTalkMessage>(hash);
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#getMessagesSince(java.util.Date)
   */
  @Override
  public List<GeoCamTalkMessage> getMessagesSince(Date sinceDate) throws SQLException{
    QueryBuilder<GeoCamTalkMessage, Integer> qb = dao.queryBuilder();
    SelectArg dateArg = new SelectArg();
    dateArg.setValue(sinceDate);
    qb.where().gt(GeoCamTalkMessage.DATE_FIELD_NAME, dateArg);
    List<GeoCamTalkMessage> list =
      dao.query(qb.prepare());
    return list;
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#addMessage(java.util.List)
   */
  @Override
  public void addMessage(List<GeoCamTalkMessage> messages) throws SQLException{
    List<GeoCamTalkMessage> existingMessages = getAllMessages();
    
    for(GeoCamTalkMessage m:messages)
    {
      if(!existingMessages.contains(m))
      dao.create(m);
    }
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#addMessage(gov.nasa.arc.geocam.talk.bean.GeoCamTalkMessage)
   */
  @Override
  public void addMessage(GeoCamTalkMessage message) throws SQLException {
    List<GeoCamTalkMessage> singleItemList = new ArrayList<GeoCamTalkMessage>();
    singleItemList.add(message);
    addMessage(singleItemList);
  }
  
  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#removeMessage(gov.nasa.arc.geocam.talk.bean.GeoCamTalkMessage)
   */
  @Override
  public void removeMessage(GeoCamTalkMessage message) throws SQLException {
    dao.delete(message);
  }
  
  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#updateMessage(gov.nasa.arc.geocam.talk.bean.GeoCamTalkMessage)
   */
  @Override
  public void updateMessage(GeoCamTalkMessage message) throws SQLException {
    dao.update(message);
  }

  /* (non-Javadoc)
   * @see gov.nasa.arc.geocam.talk.service.IMessageStore#getNewestMessageId()
   */
  @Override
  public int getNewestMessageId() throws SQLException, NotFoundException {
    QueryBuilder<GeoCamTalkMessage, Integer> qb = dao.queryBuilder();
    
    qb.where().eq(GeoCamTalkMessage.IS_SYNCHRONIZED_FIELD_NAME, true);
    qb.selectColumns(GeoCamTalkMessage.MESSAGE_ID_FIELD_NAME);
    qb.limit(1);
    qb.orderBy(GeoCamTalkMessage.MESSAGE_ID_FIELD_NAME, false);
    
    return dao.query(qb.prepare()).get(0).getMessageId();
  }
}

Java Source Code List