public DbException getNewDuplicateKeyException() {
String sql = "PRIMARY KEY ON " + table.getSQL();
if (mainIndexColumn >= 0 && mainIndexColumn < indexColumns.length) {
sql += "(" + indexColumns[mainIndexColumn].getSQL() + ")";
}
DbException e = DbException.get(ErrorCode.DUPLICATE_KEY_1, sql);
e.setSource(this);
return e;
}
/**
* Read an overflow page page.
*
* @param id the page id
* @return the page
*/
PageDataOverflow getPageOverflow(int id) {
Page p = store.getPage(id);
if (p instanceof PageDataOverflow) {
return (PageDataOverflow) p;
}
throw DbException.get(ErrorCode.FILE_CORRUPTED_1, p == null ? "null" : p.toString());
}
private void open() {
try {
conn = JdbcUtils.getConnection(driver, url, user, password);
} catch (SQLException e) {
throw DbException.convert(e);
}
}
/**
* Read the given page.
*
* @param id the page id
* @param parent the parent, or -1 if unknown
* @return the page
*/
PageData getPage(int id, int parent) {
Page pd = store.getPage(id);
if (pd == null) {
PageDataLeaf empty = PageDataLeaf.create(this, id, parent);
// could have been created before, but never committed
store.logUndo(empty, null);
store.update(empty);
return empty;
} else if (!(pd instanceof PageData)) {
throw DbException.get(ErrorCode.FILE_CORRUPTED_1, "" + pd);
}
PageData p = (PageData) pd;
if (parent != -1) {
if (p.getParentPageId() != parent) {
throw DbException.throwInternalError(
p + " parent " + p.getParentPageId() + " expected " + parent);
}
}
return p;
}
/**
* Get the key from the row.
*
* @param row the row
* @param ifEmpty the value to use if the row is empty
* @param ifNull the value to use if the column is NULL
* @return the key
*/
long getKey(SearchRow row, long ifEmpty, long ifNull) {
if (row == null) {
return ifEmpty;
}
Value v = row.getValue(mainIndexColumn);
if (v == null) {
throw DbException.throwInternalError(row.toString());
} else if (v == ValueNull.INSTANCE) {
return ifNull;
}
return v.getLong();
}
/**
* This method is called if a file should no longer be deleted if the object is garbage collected.
*
* @param ref the reference as returned by addFile
* @param fileName the file name
*/
public void stopAutoDelete(Reference<?> ref, String fileName) {
IOUtils.trace("TempFileDeleter.stopAutoDelete", fileName, ref);
if (ref != null) {
String f2 = refMap.remove(ref);
if (SysProperties.CHECK) {
if (f2 == null || !f2.equals(fileName)) {
DbException.throwInternalError(
"f2:" + f2 + " " + (f2 == null ? "" : f2) + " f:" + fileName);
}
}
}
deleteUnused();
}
public PageDataIndex(
RegularTable table,
int id,
IndexColumn[] columns,
IndexType indexType,
boolean create,
Session session) {
initBaseIndex(table, id, table.getName() + "_DATA", columns, indexType);
RegularDatabase database = (RegularDatabase) this.database;
this.multiVersion = database.isMultiVersion();
// trace = database.getTrace(Trace.PAGE_STORE + "_di");
// trace.setLevel(TraceSystem.DEBUG);
if (multiVersion) {
sessionRowCount = New.hashMap();
isMultiVersion = true;
} else {
sessionRowCount = null;
}
tableData = table;
this.store = database.getPageStore();
store.addIndex(this);
if (!database.isPersistent()) {
throw DbException.throwInternalError(table.getName());
}
if (create) {
rootPageId = store.allocatePage();
store.addMeta(this, session);
PageDataLeaf root = PageDataLeaf.create(this, rootPageId, PageData.ROOT);
store.update(root);
} else {
rootPageId = store.getRootPageId(id);
PageData root = getPage(rootPageId, 0);
lastKey = root.getLastKey();
rowCount = root.getRowCount();
}
if (trace.isDebugEnabled()) {
trace.debug("{0} opened rows: {1}", this, rowCount);
}
table.setRowCount(rowCount);
memoryPerPage = (Constants.MEMORY_PAGE_DATA + store.getPageSize()) >> 2;
}
/**
* Delete the given file now. This will remove the reference from the list.
*
* @param ref the reference as returned by addFile
* @param fileName the file name
*/
public synchronized void deleteFile(Reference<?> ref, String fileName) {
if (ref != null) {
String f2 = refMap.remove(ref);
if (f2 != null) {
if (SysProperties.CHECK) {
if (fileName != null && !f2.equals(fileName)) {
DbException.throwInternalError("f2:" + f2 + " f:" + fileName);
}
}
fileName = f2;
}
}
if (fileName != null && FileUtils.exists(fileName)) {
try {
IOUtils.trace("TempFileDeleter.deleteFile", fileName, null);
FileUtils.tryDelete(fileName);
} catch (Exception e) {
// TODO log such errors?
}
}
}
public void checkRename() {
throw DbException.getUnsupportedException("PAGE");
}
public Cursor findFirstOrLast(Session session, boolean first) {
throw DbException.throwInternalError();
}
public String getCreateSQLForCopy(Table table, String quotedName) {
throw DbException.throwInternalError();
}
public void setIncrement(long inc) {
if (inc == 0) {
throw DbException.getInvalidValueException("INCREMENT", 0);
}
this.increment = inc;
}
/**
* Restores database files.
*
* @param zipFileName the name of the backup file
* @param directory the directory name
* @param db the database name (null for all databases)
* @throws DbException if there is an IOException
*/
public static void execute(String zipFileName, String directory, String db) {
InputStream in = null;
try {
if (!FileUtils.exists(zipFileName)) {
throw new IOException("File not found: " + zipFileName);
}
String originalDbName = null;
int originalDbLen = 0;
if (db != null) {
originalDbName = getOriginalDbName(zipFileName, db);
if (originalDbName == null) {
throw new IOException("No database named " + db + " found");
}
if (originalDbName.startsWith(SysProperties.FILE_SEPARATOR)) {
originalDbName = originalDbName.substring(1);
}
originalDbLen = originalDbName.length();
}
in = FileUtils.newInputStream(zipFileName);
ZipInputStream zipIn = new ZipInputStream(in);
while (true) {
ZipEntry entry = zipIn.getNextEntry();
if (entry == null) {
break;
}
String fileName = entry.getName();
// restoring windows backups on linux and vice versa
fileName = fileName.replace('\\', SysProperties.FILE_SEPARATOR.charAt(0));
fileName = fileName.replace('/', SysProperties.FILE_SEPARATOR.charAt(0));
if (fileName.startsWith(SysProperties.FILE_SEPARATOR)) {
fileName = fileName.substring(1);
}
boolean copy = false;
if (db == null) {
copy = true;
} else if (fileName.startsWith(originalDbName + ".")) {
fileName = db + fileName.substring(originalDbLen);
copy = true;
}
if (copy) {
OutputStream o = null;
try {
o =
FileUtils.newOutputStream(
directory + SysProperties.FILE_SEPARATOR + fileName, false);
IOUtils.copy(zipIn, o);
o.close();
} finally {
IOUtils.closeSilently(o);
}
}
zipIn.closeEntry();
}
zipIn.closeEntry();
zipIn.close();
} catch (IOException e) {
throw DbException.convertIOException(e, zipFileName);
} finally {
IOUtils.closeSilently(in);
}
}
