+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir 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 Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with the com.oreilly.servlet library, any library
+ * licensed under the Apache Software License, The Sun (tm) Java Advanced
+ * Imaging library (JAI), The Sun JIMI library (or with modified versions of
+ * the above that use the same license as the above), and distribute linked
+ * combinations including the two. You must obey the GNU General Public
+ * License in all respects for all of the code used other than the above
+ * mentioned libraries. If you modify this file, you may extend this exception
+ * to your version of the file, but you are not obligated to do so. If you do
+ * not wish to do so, delete this exception statement from your version.
+ */
+
package mircoders.storage;
import java.lang.*;
private static DatabaseContentToMedia instance;
- public static DatabaseContentToMedia getInstance()
+ // the following *has* to be sychronized cause this static method
+ // could get preemted and we could end up with 2 instances of DatabaseFoo.
+ // see the "Singletons with needles and thread" article at JavaWorld -mh
+ public synchronized static DatabaseContentToMedia getInstance()
throws StorageObjectException {
if (instance == null) {
instance = new DatabaseContentToMedia();
super();
this.hasTimestamp = false;
this.theTable="content_x_media";
+ try { this.theEntityClass = Class.forName("mir.entity.GenericEntity"); }
+ catch (Exception e) { throw new StorageObjectException(e.toString()); }
}
-
- public EntityList getMedia(EntityContent content) {
+ /**
+ * get all the media-files belonging to a content entity
+ *
+ */
+ public EntityList getMedia(EntityContent content)
+ throws StorageObjectException {
EntityList returnList=null;
if (content != null) {
// get all to_topic from media_x_topic
String subselect = "id in (select media_id from " + theTable + " where content_id=" + id+")";
try {
- returnList = DatabaseMedia.getInstance().selectByWhereClause(subselect,-1);
+ // media should stay in uploaded order. this is especially important
+ // for photo stories which require a specific chronologic order.
+ // this is why we have the the second parameter "id"
+ returnList = DatabaseMedia.getInstance().selectByWhereClause(subselect,"id",-1);
} catch (Exception e) {
theLog.printDebugInfo("-- get media failed " + e.toString());
+ throw new StorageObjectException("-- get media failed " + e.toString());
+ }
+ }
+ return returnList;
+ }
+
+ public boolean hasMedia(EntityContent content)
+ throws StorageObjectException {
+ String wc = "content_id="+content.getId();
+ if( content != null) {
+ try {
+ if(selectByWhereClause(wc,-1).size() == 0)
+ return false;
+ else
+ return true;
+ } catch (Exception e) {
+ theLog.printError("-- hasMedia failed " + e.toString());
+ throw new StorageObjectException("-- hasMedia failed " + e.toString());
+ }
+ } else {
+ theLog.printError("-- hasMedia failed: content is NULL");
+ throw new StorageObjectException("-- hasMedia failed: content is NULL");
+ }
+ }
+
+
+
+
+ /**
+ * get all the audio belonging to a content entity
+ *
+ */
+ public EntityList getAudio(EntityContent content)
+ throws StorageObjectException {
+ EntityList returnList=null;
+ if (content != null) {
+ // get all to_topic from media_x_topic
+ String id = content.getId();
+ //this is not supported by mysql
+ String subselect = "id in (select media_id from " + theTable + " where content_id=" + id+")";
+
+ try {
+ // media should stay in uploaded order. this is especially important
+ // for photo stories which require a specific chronologic order.
+ // this is why we have the the second parameter "id"
+ returnList = DatabaseAudio.getInstance().selectByWhereClause(subselect,"id",-1);
+ } catch (Exception e) {
+ theLog.printDebugInfo("-- get audio failed " + e.toString());
+ throw new StorageObjectException("-- get audio failed " + e.toString());
+ }
+ }
+ return returnList;
+ }
+
+ /**
+ * get all the video belonging to a content entity
+ *
+ */
+ public EntityList getVideo(EntityContent content)
+ throws StorageObjectException {
+ EntityList returnList=null;
+ if (content != null) {
+ // get all to_topic from media_x_topic
+ String id = content.getId();
+ //this is not supported by mysql
+ String subselect = "id in (select media_id from " + theTable + " where content_id=" + id+")";
+
+ try {
+ // media should stay in uploaded order. this is especially important
+ // for photo stories which require a specific chronologic order.
+ // this is why we have the the second parameter "id"
+ returnList = DatabaseVideo.getInstance().selectByWhereClause(subselect,"id",-1);
+ } catch (Exception e) {
+ theLog.printDebugInfo("-- get video failed " + e.toString());
+ throw new StorageObjectException("-- get video failed " + e.toString());
+ }
+ }
+ return returnList;
+ }
+
+ /**
+ * get all the images belonging to a content entity
+ *
+ */
+ public EntityList getImages(EntityContent content)
+ throws StorageObjectException {
+ EntityList returnList=null;
+ if (content != null) {
+ // get all to_topic from media_x_topic
+ String id = content.getId();
+ //this is not supported by mysql
+ String subselect = "id in (select media_id from " + theTable + " where content_id=" + id+")";
+
+ try {
+ // media should stay in uploaded order. this is especially important
+ // for photo stories which require a specific chronologic order.
+ // this is why we have the the second parameter "id"
+ returnList = DatabaseImages.getInstance().selectByWhereClause(subselect,"id",-1);
+ } catch (Exception e) {
+ theLog.printDebugInfo("-- get images failed " + e.toString());
+ throw new StorageObjectException("-- get images failed " + e.toString());
}
}
return returnList;
}
- public void setMedia(String contentId, String[] mediaId) {
+ /**
+ * get all the uploaded/other Media belonging to a content entity
+ *
+ */
+ public EntityList getOther(EntityContent content)
+ throws StorageObjectException
+ {
+ /** @todo this should only fetch published media / rk */
+
+ EntityList returnList=null;
+ if (content != null) {
+ // get all to_topic from media_x_topic
+ String id = content.getId();
+ //this is not supported by mysql
+ String subselect = "id in (select media_id from " + theTable +
+ " where content_id=" + id+")";
+
+ try {
+ // media should stay in uploaded order. this is especially important
+ // for photo stories which require a specific chronologic order.
+ // this is why we have the the second parameter "id"
+ returnList = DatabaseOther.getInstance().selectByWhereClause(subselect,
+ "id");
+ } catch (Exception e) {
+ e.printStackTrace();
+ theLog.printDebugInfo("-- get Other failed " + e.toString());
+ throw new StorageObjectException("-- get Other failed "
+ + e.toString());
+ }
+ }
+ return returnList;
+ }
+
+ /**
+ * get all the uploaded/other Media belonging to a content entity
+ *
+ */
+ public EntityList getUploadedMedia(EntityContent content)
+ throws StorageObjectException
+ {
+ /** @todo this should only fetch published media / rk */
+
+ EntityList returnList=null;
+ if (content != null) {
+ // get all to_topic from media_x_topic
+ String id = content.getId();
+ //this is not supported by mysql
+ String subselect = "id in (select media_id from " + theTable +
+ " where content_id=" + id+")";
+
+ try {
+ returnList = DatabaseUploadedMedia.getInstance().selectByWhereClause(subselect,
+ "id");
+ } catch (Exception e) {
+ e.printStackTrace();
+ theLog.printDebugInfo("-- get uploadedMedia failed " + e.toString());
+ throw new StorageObjectException("-- get uploadedMedia failed "
+ + e.toString());
+ }
+ }
+ return returnList;
+ }
+
+
+ public void setMedia(String contentId, String[] mediaId)
+ throws StorageObjectException {
if (contentId == null){
return;
}
}
//first delete all row with content_id=contentId
String sql = "delete from "+ theTable +" where content_id=" + contentId;
-
+
Connection con=null;Statement stmt=null;
try {
con = getPooledCon();
ResultSet rs = executeSql(stmt,sql);
} catch (Exception e) {
theLog.printDebugInfo("-- set media failed -- delete");
+ throw new StorageObjectException("-- set media failed -- delete"+e.toString());
} finally {
freeConnection(con,stmt);
}
-
+
//now insert
//first delete all row with content_id=contentId
for (int i=0;i<mediaId.length;i++) {
int rs = executeUpdate(stmt,sql);
} catch (Exception e) {
theLog.printDebugInfo("-- set topics failed -- insert");
+ throw new StorageObjectException("-- set topics failed -- insert "+e.toString());
} finally {
freeConnection(con,stmt);
}
}
}
- public void addMedia(String contentId, String mediaId) {
+ public void addMedia(String contentId, String mediaId)
+ throws StorageObjectException {
if (contentId == null && mediaId == null) {
return;
}
-
+
Connection con=null;Statement stmt=null;
//now insert
-
+
String sql = "insert into "+ theTable +" (content_id,media_id) values ("
+ contentId + "," + mediaId + ")";
try {
int rs = executeUpdate(stmt,sql);
} catch (Exception e) {
theLog.printDebugInfo("-- add media failed -- insert");
+ throw new StorageObjectException("-- add media failed -- insert "
+ +e.toString());
} finally {
freeConnection(con,stmt);
}
}
-
- public void setMedia(String contentId, String mediaId) {
+
+ public void setMedia(String contentId, String mediaId)
+ throws StorageObjectException {
if (contentId == null && mediaId == null) {
return;
}
int rs = executeUpdate(stmt,sql);
} catch (Exception e) {
theLog.printDebugInfo("-- set media failed -- delete");
+ throw new StorageObjectException("-- set media failed -- delete "
+ +e.toString());
} finally {
freeConnection(con,stmt);
}
int rs = executeUpdate(stmt,sql);
} catch (Exception e) {
theLog.printDebugInfo("-- set media failed -- insert");
+ throw new StorageObjectException("-- set media failed -- insert "
+ +e.toString());
} finally {
freeConnection(con,stmt);
}
}
- public void deleteByContentId(String contentId) {
+ public void deleteByContentId(String contentId)
+ throws StorageObjectException {
if (contentId == null) {
//theLog.printDebugInfo("-- delete topics failed -- no content id");
return;
stmt = con.createStatement();
int rs = executeUpdate(stmt,sql);
} catch (Exception e) {
- //theLog.printDebugInfo("-- delete topics failed ");
+ theLog.printDebugInfo("-- delete by contentId failed ");
+ throw new StorageObjectException("-- delete by content id failed -- delete "
+ +e.toString());
} finally {
freeConnection(con,stmt);
}
}
- public void deleteByMediaId(String mediaId) {
+ public void deleteByMediaId(String mediaId)
+ throws StorageObjectException {
if (mediaId == null) {
//theLog.printDebugInfo("-- delete topics failed -- no topic id");
return;
theLog.printDebugInfo("-- delete media success ");
} catch (Exception e) {
theLog.printDebugInfo("-- delete media failed ");
+ throw new StorageObjectException("-- delete by media id failed -- "
+ +e.toString());
} finally {
freeConnection(con,stmt);
}
}
-
- public void delete(String contentId, String mediaId) {
+
+ public void delete(String contentId, String mediaId)
+ throws StorageObjectException {
if (mediaId == null || contentId==null) {
theLog.printDebugInfo("-- delete media failed -- missing parameter");
return;
theLog.printDebugInfo("-- delete content_x_media success ");
} catch (Exception e) {
theLog.printDebugInfo("-- delete content_x_media failed ");
+ throw new StorageObjectException("-- delete content_x_media failed -- "
+ +e.toString());
} finally {
freeConnection(con,stmt);
}
}
- public EntityList getContent(EntityMedia media) {
+ public EntityList getContent(EntityUploadedMedia media)
+ throws StorageObjectException {
EntityList returnList=null;
if (media != null) {
String id = media.getId();
returnList = DatabaseContent.getInstance().selectByWhereClause(mediaSelect,-1);
}
}
- catch (Exception e) {theLog.printDebugInfo("-- get content failed");}
+ catch (Exception e) {
+ theLog.printDebugInfo("-- get content failed");
+ throw new StorageObjectException("-- get content failed -- "
+ +e.toString());
+ }
finally { freeConnection(con,stmt);}
}
return returnList;
}
-
+
/**
* Returns a EntityList with all content-objects having a relation to a media
*/
-
-public EntityList getContent() {
+
+public EntityList getContent()
+ throws StorageObjectException {
EntityList returnList=null;
-
+
String select = "select distinct content_id from " + theTable;
- // execute select statement
- Connection con=null;Statement stmt=null;
- try {
- con = getPooledCon();
- // should be a preparedStatement because is faster
- stmt = con.createStatement();
- ResultSet rs = executeSql(stmt,select);
- if (rs!=null) {
- String mediaSelect= "id IN (";
- boolean first=true;
- while (rs.next()) {
- if (first==false) mediaSelect+=",";
- mediaSelect += rs.getString(1);
- first=false;
- }
- mediaSelect+=")";
- if (first==false)
- returnList = DatabaseContent.getInstance().selectByWhereClause(mediaSelect,"webdb_lastchange desc");
- }
- }
- catch (Exception e) {theLog.printDebugInfo("-- get content failed");}
- finally { freeConnection(con,stmt);}
-
- return returnList;
+ // execute select statement
+ Connection con=null;Statement stmt=null;
+ try {
+ con = getPooledCon();
+ // should be a preparedStatement because is faster
+ stmt = con.createStatement();
+ ResultSet rs = executeSql(stmt,select);
+ if (rs!=null) {
+ String mediaSelect= "id IN (";
+ boolean first=true;
+ while (rs.next()) {
+ if (first==false) mediaSelect+=",";
+ mediaSelect += rs.getString(1);
+ first=false;
+ }
+ mediaSelect+=")";
+ if (first==false)
+ returnList = DatabaseContent.getInstance().selectByWhereClause(mediaSelect,"webdb_lastchange desc");
+ }
+ }
+ catch (Exception e) {
+ theLog.printDebugInfo("-- get content failed");
+ throw new StorageObjectException("-- get content failed -- "
+ +e.toString());
+ }
+ finally { freeConnection(con,stmt);}
+
+ return returnList;
}
}
projects / mir.git / blobdiff