* 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 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.
+ * the code of this program with 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.sql.Connection;
-import java.sql.ResultSet;
import java.sql.Statement;
+import java.util.ArrayList;
import mir.entity.EntityList;
import mir.log.LoggerWrapper;
import mir.storage.Database;
-import mir.storage.StorageObject;
-import mir.storage.StorageObjectExc;
-import mir.storage.StorageObjectFailure;
-import mircoders.entity.EntityComment;
+import mir.storage.DatabaseFailure;
import mircoders.entity.EntityUploadedMedia;
-/**
- * <b>implements abstract DB connection to the comment_x_media SQL table
- *
- * @author RK, mir-coders group
- * @version $Id: DatabaseCommentToMedia.java,v 1.2 2003/04/21 12:42:47 idfx Exp $
- *
- */
-
-public class DatabaseCommentToMedia extends Database implements StorageObject{
+public class DatabaseCommentToMedia extends Database {
private static DatabaseCommentToMedia instance;
- public static DatabaseCommentToMedia getInstance() {
+ public static synchronized DatabaseCommentToMedia getInstance() {
if (instance == null) {
- synchronized (DatabaseCommentToMedia.class) {
- if (instance == null) {
- instance = new DatabaseCommentToMedia();
- instance.myselfDatabase = instance;
- }
- }
+ instance = new DatabaseCommentToMedia();
}
return instance;
}
super();
logger = new LoggerWrapper("Database.CommentToMedia");
-
- hasTimestamp = false;
- theTable = "comment_x_media";
- theEntityClass = mir.entity.GenericEntity.class;
- }
-
- /**
- * get all the media-files belonging to a comment entity
- *
- */
- public EntityList getMedia(EntityComment comment) throws StorageObjectFailure {
- EntityList returnList = null;
- if (comment != null) {
- // get all to_topic from media_x_topic
- String id = comment.getId();
- String subselect = "id in (select media_id from " + theTable +
- " where comment_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 = DatabaseMedia.getInstance().selectByWhereClause(subselect,
- "id", -1);
- }
- catch (Throwable e) {
- logger.debug("-- get media failed " + e.toString());
- throw new StorageObjectFailure("-- get media failed ", e);
- }
- }
- return returnList;
- }
-
- public boolean hasMedia(EntityComment comment) throws StorageObjectFailure,
- StorageObjectExc {
- if (comment != null) {
- try {
- if (selectByWhereClause("comment_id=" + comment.getId(), -1).size() ==
- 0)
- return false;
- else
- return true;
- }
- catch (Exception e) {
- logger.error("DatabaseCommentToMedia.hasMedia: " + e.toString());
- throw new StorageObjectFailure("DatabaseCommentToMedia.hasMedia: " +
- e.toString(), e);
- }
- }
- else {
- logger.error("DatabaseCommentToMedia.hasMedia: comment == null");
- throw new StorageObjectExc(
- "DatabaseCommentToMedia.hasMedia: comment == null");
- }
- }
-
- /**
- * get all the audio belonging to a comment entity
- *
- */
- public EntityList getAudio(EntityComment comment) throws StorageObjectFailure {
- EntityList returnList = null;
- if (comment != null) {
- // get all to_topic from media_x_topic
- String id = comment.getId();
- //this is not supported by mysql
- String subselect = "id in (select media_id from " + theTable +
- " where comment_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) {
- logger.error("DatabaseCommentToMedia.getAudio: " + e.toString());
- throw new StorageObjectFailure("DatabaseCommentToMedia.getAudio: " +
- e.toString(), e);
- }
- }
- return returnList;
- }
-
- /**
- * get all the video belonging to a comment entity
- *
- */
- public EntityList getVideo(EntityComment comment) throws StorageObjectFailure {
- EntityList returnList = null;
- if (comment != null) {
- // get all to_topic from media_x_topic
- String id = comment.getId();
- //this is not supported by mysql
- String subselect = "id in (select media_id from " + theTable +
- " where comment_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) {
- logger.error("DatabaseCommentToMedia.getVideo: " + e.toString());
- throw new StorageObjectFailure("DatabaseCommentToMedia.getVideo: " +
- e.toString(), e);
- }
- }
- return returnList;
- }
-
- /**
- * get all the images belonging to a comment entity
- *
- */
- public EntityList getImages(EntityComment comment) throws
- StorageObjectFailure {
- EntityList returnList = null;
- if (comment != null) {
- // get all to_topic from media_x_topic
- String id = comment.getId();
- //this is not supported by mysql
- String subselect = "id in (select media_id from " + theTable +
- " where comment_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) {
- logger.error("DatabaseCommentToMedia.getImages: " + e.toString());
- throw new StorageObjectFailure("DatabaseCommentToMedia.getImages: " +
- e.toString(), e);
- }
- }
- return returnList;
- }
-
- /**
- * get all the uploaded/other Media belonging to a comment entity
- *
- */
- public EntityList getOther(EntityComment comment) throws StorageObjectFailure {
- /** @todo this should only fetch published media / rk */
-
- EntityList returnList = null;
- if (comment != null) {
- // get all to_topic from media_x_topic
- String id = comment.getId();
- //this is not supported by mysql
- String subselect = "id in (select media_id from " + theTable +
- " where comment_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) {
- logger.error("DatabaseCommentToMedia.getOther: " + e.toString());
- throw new StorageObjectFailure("DatabaseCommentToMedia.getOther: " + e.toString(), e);
- }
- }
- return returnList;
- }
-
- /**
- * get all the uploaded/other Media belonging to a comment entity
- *
- */
- public EntityList getUploadedMedia(EntityComment comment) throws
- StorageObjectFailure {
- /** @todo this should only fetch published media / rk */
-
- EntityList returnList = null;
- if (comment != null) {
- // get all to_topic from media_x_topic
- String id = comment.getId();
- //this is not supported by mysql
- String subselect = "id in (select media_id from " + theTable +
- " where comment_id=" + id + ")";
-
- try {
- returnList = DatabaseUploadedMedia.getInstance().selectByWhereClause(
- subselect,
- "id");
- }
- catch (Exception e) {
- logger.error("DatabaseCommentToMedia.getUploadedMedia: " + e.toString());
- throw new StorageObjectFailure(
- "DatabaseCommentToMedia.getUploadedMedia: " + e.toString(), e);
- }
- }
- return returnList;
- }
-
- public void setMedia(String commentId, String[] mediaId) throws
- StorageObjectFailure {
- if (commentId == null) {
- return;
- }
- if (mediaId == null || mediaId[0] == null) {
- return;
- }
- //first delete all row with comment_id=commentId
- String sql = "delete from " + theTable + " where comment_id=" + commentId;
-
- Connection con = null;
- Statement stmt = null;
- try {
- con = getPooledCon();
- // should be a preparedStatement because is faster
- stmt = con.createStatement();
- ResultSet rs = executeSql(stmt, sql);
- }
- catch (Exception e) {
- logger.error("-- set media failed -- delete");
- throw new StorageObjectFailure("-- set media failed -- delete", e);
- }
- finally {
- freeConnection(con, stmt);
- }
-
- //now insert
- //first delete all row with comment_id=commentId
- for (int i = 0; i < mediaId.length; i++) {
- sql = "insert into " + theTable + " (comment_id,media_id) values ("
- + commentId + "," + mediaId[i] + ")";
- try {
- con = getPooledCon();
- // should be a preparedStatement because is faster
- stmt = con.createStatement();
- int rs = executeUpdate(stmt, sql);
- }
- catch (Exception e) {
- logger.error("-- set topics failed -- insert");
- throw new StorageObjectFailure("-- set topics failed -- insert ", e);
- }
- finally {
- freeConnection(con, stmt);
- }
- }
+ mainTable = "comment_x_media";
+ entityClass = mir.entity.GenericEntity.class;
}
public void addMedia(String commentId, String mediaId) throws
- StorageObjectFailure {
+ DatabaseFailure {
if (commentId == null && mediaId == null) {
return;
}
Statement stmt = null;
//now insert
- String sql = "insert into " + theTable + " (comment_id,media_id) values ("
+ String sql = "insert into " + mainTable + " (comment_id,media_id) values ("
+ commentId + "," + mediaId + ")";
try {
- con = getPooledCon();
+ con = obtainConnection();
// should be a preparedStatement because is faster
stmt = con.createStatement();
int rs = executeUpdate(stmt, sql);
}
catch (Exception e) {
logger.error("-- add media failed -- insert");
- throw new StorageObjectFailure("-- add media failed -- insert ", e);
+ throw new DatabaseFailure("-- add media failed -- insert ", e);
}
finally {
freeConnection(con, stmt);
}
public void setMedia(String commentId, String mediaId) throws
- StorageObjectFailure {
+ DatabaseFailure {
if (commentId == null && mediaId == null) {
return;
}
//first delete all row with comment_id=commentId
- String sql = "delete from " + theTable + " where comment_id=" + commentId;
+ String sql = "delete from " + mainTable + " where comment_id=" + commentId;
Connection con = null;
Statement stmt = null;
try {
- con = getPooledCon();
+ con = obtainConnection();
// should be a preparedStatement because is faster
stmt = con.createStatement();
int rs = executeUpdate(stmt, sql);
}
catch (Exception e) {
logger.error("-- set media failed -- delete");
- throw new StorageObjectFailure("-- set media failed -- delete ", e);
+ throw new DatabaseFailure("-- set media failed -- delete ", e);
}
finally {
freeConnection(con, stmt);
//now insert
//first delete all row with comment_id=commentId
- sql = "insert into " + theTable + " (comment_id,media_id) values ("
+ sql = "insert into " + mainTable + " (comment_id,media_id) values ("
+ commentId + "," + mediaId + ")";
try {
- con = getPooledCon();
+ con = obtainConnection();
// should be a preparedStatement because is faster
stmt = con.createStatement();
int rs = executeUpdate(stmt, sql);
}
catch (Exception e) {
logger.error("-- set media failed -- insert");
- throw new StorageObjectFailure("-- set media failed -- insert ", e);
+ throw new DatabaseFailure("-- set media failed -- insert ", e);
}
finally {
freeConnection(con, stmt);
}
}
- public void deleteByCommentId(String commentId) throws StorageObjectFailure {
+ public void deleteByCommentId(String commentId) throws DatabaseFailure {
if (commentId == null) {
//theLog.printDebugInfo("-- delete topics failed -- no comment id");
return;
}
//delete all row with comment_id=commentId
- String sql = "delete from " + theTable + " where comment_id=" + commentId;
+ String sql = "delete from " + mainTable + " where comment_id=" + commentId;
Connection con = null;
Statement stmt = null;
try {
- con = getPooledCon();
+ con = obtainConnection();
// should be a preparedStatement because is faster
stmt = con.createStatement();
int rs = executeUpdate(stmt, sql);
}
catch (Exception e) {
logger.error("-- delete by commentId failed ");
- throw new StorageObjectFailure(
+ throw new DatabaseFailure(
"-- delete by comment id failed -- delete ", e);
}
finally {
}
}
- public void deleteByMediaId(String mediaId) throws StorageObjectFailure {
+ public void deleteByMediaId(String mediaId) throws DatabaseFailure {
if (mediaId == null) {
//theLog.printDebugInfo("-- delete topics failed -- no topic id");
return;
}
//delete all row with comment_id=commentId
- String sql = "delete from " + theTable + " where media_id=" + mediaId;
+ String sql = "delete from " + mainTable + " where media_id=" + mediaId;
Connection con = null;
Statement stmt = null;
try {
- con = getPooledCon();
+ con = obtainConnection();
// should be a preparedStatement because is faster
stmt = con.createStatement();
int rs = executeUpdate(stmt, sql);
}
catch (Exception e) {
logger.error("-- delete media failed ");
- throw new StorageObjectFailure("-- delete by media id failed -- ", e);
+ throw new DatabaseFailure("-- delete by media id failed -- ", e);
}
finally {
freeConnection(con, stmt);
}
public void delete(String commentId, String mediaId) throws
- StorageObjectFailure {
+ DatabaseFailure {
if (mediaId == null || commentId == null) {
logger.debug("-- delete media failed -- missing parameter");
return;
}
//delete all row with comment_id=commentId and media_id=mediaId
- String sql = "delete from " + theTable + " where media_id=" + mediaId +
+ String sql = "delete from " + mainTable + " where media_id=" + mediaId +
" and comment_id= " + commentId;
Connection con = null;
Statement stmt = null;
try {
- con = getPooledCon();
+ con = obtainConnection();
// should be a preparedStatement because is faster
stmt = con.createStatement();
int rs = executeUpdate(stmt, sql);
}
catch (Exception e) {
logger.error("-- delete comment_x_media failed ");
- throw new StorageObjectFailure("-- delete comment_x_media failed -- ", e);
+ throw new DatabaseFailure("-- delete comment_x_media failed -- ", e);
}
finally {
freeConnection(con, stmt);
}
public EntityList getComment(EntityUploadedMedia media) throws
- StorageObjectFailure {
+ DatabaseFailure {
+
EntityList returnList = null;
if (media != null) {
+
String id = media.getId();
- String select = "select comment_id from " + theTable + " where media_id=" +
- id;
+ ArrayList extraTables = new ArrayList();
+ extraTables.add(mainTable + " cxm");
- // execute select statement
- Connection con = null;
- Statement stmt = null;
+ String mediaSelect = "cxm.comment_id=c.id and cxm.media_id="+id;
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 = DatabaseComment.getInstance().selectByWhereClause(
- mediaSelect, -1);
- }
+ returnList = DatabaseComment.getInstance().selectByWhereClause("c",
+ extraTables, mediaSelect, "c.id" );
+
}
catch (Exception e) {
logger.error("-- get comment failed");
- throw new StorageObjectFailure("-- get comment failed -- ", e);
- }
- finally {
- freeConnection(con, stmt);
+ throw new DatabaseFailure("-- get comment failed -- ", e);
}
}
return returnList;
}
/**
- * Returns a EntityList with all comment-objects having a relation to a media
+ * Returns a EntityList with all comment-objects having
+ * a relation to a media
*/
- public EntityList getComment() throws StorageObjectFailure {
+ public EntityList getComment() throws DatabaseFailure {
EntityList returnList = null;
- String select = "select distinct comment_id from " + theTable;
- // execute select statement
- Connection con = null;
- Statement stmt = null;
+ ArrayList extraTables = new ArrayList();
+ extraTables.add(mainTable + " cxm");
+
+ String mediaSelect = "cxm.comment_id=c.id";
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 = DatabaseComment.getInstance().selectByWhereClause(
- mediaSelect, "webdb_lastchange desc");
- }
+ returnList = DatabaseComment.getInstance().selectByWhereClause("c",
+ extraTables, mediaSelect, "c.webdb_lastchange desc" );
+
}
catch (Exception e) {
logger.error("-- get comment failed");
- throw new StorageObjectFailure("-- get comment failed -- ", e);
- }
- finally {
- freeConnection(con, stmt);
+ throw new DatabaseFailure("-- get comment failed -- ", e);
}
-
return returnList;
+
}
}
projects / mir.git / blobdiff