// Keep in mind we do not keep local document revision history
private BasicDocumentRevision doGetLocalDocument(String docId, String revId) {
assert !Strings.isNullOrEmpty(docId);
Cursor cursor = null;
try {
String[] args = {docId};
cursor = this.sqlDb.rawQuery("SELECT revid, json FROM localdocs WHERE docid=?", args);
if (cursor.moveToFirst()) {
String gotRevID = cursor.getString(0);
if (revId != null && !revId.equals(gotRevID)) {
// throw new DocumentNotFoundException("No local document found with
// id: " + docId + ", revId: " + revId);
return null;
}
byte[] json = cursor.getBlob(1);
DocumentRevisionBuilder builder =
new DocumentRevisionBuilder()
.setDocId(docId)
.setRevId(gotRevID)
.setBody(BasicDocumentBody.bodyWith(json));
return builder.buildBasicDBObjectLocalDocument();
} else {
return null;
}
} catch (SQLException e) {
throw new SQLRuntimeException("Error getting local document with id: " + docId, e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
}
@Override
public Iterator<String> getConflictedDocumentIds() {
// the "SELECT DISTINCT ..." subquery selects all the parent
// sequence, and so the outer "SELECT ..." practically selects
// all the leaf nodes. The "GROUP BY" and "HAVING COUNT(*) > 1"
// make sure only those document with more than one leafs are
// returned.
final String sql =
"SELECT docs.docid, COUNT(*) FROM docs,revs "
+ "WHERE revs.doc_id = docs.doc_id "
+ "AND deleted = 0 AND revs.sequence NOT IN "
+ "(SELECT DISTINCT parent FROM revs WHERE parent NOT NULL) "
+ "GROUP BY docs.docid HAVING COUNT(*) > 1";
List<String> conflicts = new ArrayList<String>();
Cursor cursor = null;
try {
cursor = this.sqlDb.rawQuery(sql, new String[] {});
while (cursor.moveToNext()) {
String docId = cursor.getString(0);
conflicts.add(docId);
}
} catch (SQLException e) {
Log.e(LOG_TAG, "Error getting conflicted document: ", e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
return conflicts.iterator();
}
@Override
public Changes changes(long since, int limit) {
Preconditions.checkState(this.isOpen(), "Database is closed");
Preconditions.checkArgument(limit > 0, "Limit must be positive number");
since = since >= 0 ? since : 0;
String[] args = {Long.toString(since), Long.toString(since + limit)};
Cursor cursor = null;
try {
Long lastSequence = since;
List<Long> ids = new ArrayList<Long>();
cursor = this.sqlDb.rawQuery(SQL_CHANGE_IDS_SINCE_LIMIT, args);
while (cursor.moveToNext()) {
ids.add(cursor.getLong(0));
lastSequence = Math.max(lastSequence, cursor.getLong(1));
}
List<DocumentRevision> results = this.getDocumentsWithInternalIds(ids);
if (results.size() != ids.size()) {
throw new IllegalStateException(
"The number of document does not match number of ids, "
+ "something must be wrong here.");
}
return new Changes(lastSequence, results);
} catch (SQLException e) {
throw new IllegalStateException(
"Error querying all changes since: " + since + ", limit: " + limit, e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
}
private DocumentRevisionTree getAllRevisionsOfDocument(long docNumericID) {
String sql =
"SELECT "
+ FULL_DOCUMENT_COLS
+ " FROM revs, docs "
+ "WHERE revs.doc_id=? AND revs.doc_id = docs.doc_id ORDER BY sequence ASC";
String[] args = {Long.toString(docNumericID)};
Cursor cursor = null;
try {
DocumentRevisionTree tree = new DocumentRevisionTree();
cursor = this.sqlDb.rawQuery(sql, args);
while (cursor.moveToNext()) {
DocumentRevision rev = SQLDatabaseUtils.getFullRevisionFromCurrentCursor(cursor);
Log.v(LOG_TAG, "Rev: " + rev);
tree.add(rev);
}
return tree;
} catch (SQLException e) {
Log.e(LOG_TAG, "Error getting all revisions of document", e);
return null;
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
}
/**
* Removes revisions present in the datastore from the input map.
*
* @param revisions an multimap from document id to set of revisions. The map is modified in place
* for performance consideration.
*/
void revsDiffBatch(Multimap<String, String> revisions) {
final String sql =
String.format(
"SELECT docs.docid, revs.revid FROM docs, revs "
+ "WHERE docs.doc_id = revs.doc_id AND docs.docid IN (%s) AND revs.revid IN (%s) "
+ "ORDER BY docs.docid",
SQLDatabaseUtils.makePlaceholders(revisions.keySet().size()),
SQLDatabaseUtils.makePlaceholders(revisions.size()));
String[] args = new String[revisions.keySet().size() + revisions.size()];
String[] keys = revisions.keySet().toArray(new String[revisions.keySet().size()]);
String[] values = revisions.values().toArray(new String[revisions.size()]);
System.arraycopy(keys, 0, args, 0, revisions.keySet().size());
System.arraycopy(values, 0, args, revisions.keySet().size(), revisions.size());
Cursor cursor = null;
try {
cursor = this.sqlDb.rawQuery(sql, args);
while (cursor.moveToNext()) {
String docId = cursor.getString(0);
String revId = cursor.getString(1);
revisions.remove(docId, revId);
}
} catch (SQLException e) {
e.printStackTrace();
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
}
static BasicDocumentRevision getFullRevisionFromCurrentCursor(Cursor cursor) {
String docId = cursor.getString(0);
long internalId = cursor.getLong(1);
String revId = cursor.getString(2);
long sequence = cursor.getLong(3);
byte[] json = cursor.getBlob(4);
boolean current = cursor.getInt(5) > 0;
boolean deleted = cursor.getInt(6) > 0;
long parent = -1L;
if (cursor.columnType(7) == Cursor.FIELD_TYPE_INTEGER) {
parent = cursor.getLong(7);
} else if (cursor.columnType(7) == Cursor.FIELD_TYPE_NULL) {
} else {
throw new IllegalArgumentException("Unexpected type: " + cursor.columnType(7));
}
DocumentRevisionBuilder builder =
new DocumentRevisionBuilder()
.setDocId(docId)
.setRevId(revId)
.setBody(BasicDocumentBody.bodyWith(json))
.setDeleted(deleted)
.setSequence(sequence)
.setInternalId(internalId)
.setCurrnet(current)
.setParent(parent);
return builder.buildBasicDBObject();
}
public static Set<String> getAllTableNames(SQLDatabase db) throws SQLException {
Cursor cursor = null;
try {
cursor = db.rawQuery("SELECT name FROM sqlite_master WHERE type='table'", new String[] {});
Set<String> tables = new HashSet<String>();
while (cursor.moveToNext()) {
tables.add(cursor.getString(0));
}
return tables;
} finally {
}
}
public static Set<String> getCompileOptions(SQLDatabase db) throws SQLException {
Cursor cursor = null;
Set<String> compileOptions = new HashSet<String>();
try {
cursor = db.rawQuery("PRAGMA compile_options", new String[] {});
while (cursor.moveToNext()) {
compileOptions.add(cursor.getString(0));
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return compileOptions;
}
private List<DocumentRevision> getRevisionsFromRawQuery(String sql, String[] args) {
List<DocumentRevision> result = new ArrayList<DocumentRevision>();
Cursor cursor = null;
try {
cursor = this.sqlDb.rawQuery(sql, args);
while (cursor.moveToNext()) {
DocumentRevision row = SQLDatabaseUtils.getFullRevisionFromCurrentCursor(cursor);
result.add(row);
}
} catch (SQLException e) {
e
.printStackTrace(); // To change bodyOne of catch statement use File | Settings | File
// Templates.
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
return result;
}
@Override
public long getDocNumericId(String docId) {
Preconditions.checkState(this.isOpen(), "Database is closed");
Preconditions.checkArgument(
!Strings.isNullOrEmpty(docId), "Input document id can not be empty");
Cursor cursor = null;
try {
cursor = this.sqlDb.rawQuery("SELECT doc_id FROM docs WHERE docid = ?", new String[] {docId});
if (cursor.moveToFirst()) {
return cursor.getLong(0);
}
} catch (SQLException e) {
Log.e(LOG_TAG, "Error getting doc numeric id", e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
return -1;
}
@Override
public int getDocumentCount() {
Preconditions.checkState(this.isOpen(), "Database is closed");
String sql = "SELECT COUNT(DISTINCT doc_id) FROM revs WHERE current=1 AND deleted=0";
Cursor cursor = null;
int result = 0;
try {
cursor = this.sqlDb.rawQuery(sql, null);
if (cursor.moveToFirst()) {
result = cursor.getInt(0);
}
} catch (SQLException e) {
Log.e(LOG_TAG, "Error getting document count", e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
return result;
}
@Override
public String getPublicIdentifier() {
Preconditions.checkState(this.isOpen(), "Database is closed");
Cursor cursor = null;
try {
cursor = this.sqlDb.rawQuery("SELECT value FROM info WHERE key='publicUUID'", null);
if (cursor.moveToFirst()) {
return "touchdb_" + cursor.getString(0);
} else {
throw new IllegalStateException(
"Error querying PublicUUID, "
+ "it is probably because the sqlDatabase is not probably initialized.");
}
} catch (SQLException e) {
throw new SQLRuntimeException("Error querying publicUUID: ", e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
}
@Override
public BasicDocumentRevision getDocument(String id, String rev) {
Preconditions.checkState(this.isOpen(), "Database is closed");
Preconditions.checkArgument(
!Strings.isNullOrEmpty(id), "DocumentRevisionTree id can not be empty");
Cursor cursor = null;
try {
String[] args = (rev == null) ? new String[] {id} : new String[] {id, rev};
String sql = (rev == null) ? GET_DOCUMENT_CURRENT_REVISION : GET_DOCUMENT_GIVEN_REVISION;
cursor = this.sqlDb.rawQuery(sql, args);
if (cursor.moveToFirst()) {
return SQLDatabaseUtils.getFullRevisionFromCurrentCursor(cursor);
} else {
return null;
}
} catch (SQLException e) {
throw new SQLRuntimeException("Error getting document with id: " + id + "and rev" + rev, e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
}
@Override
public long getLastSequence() {
Preconditions.checkState(this.isOpen(), "Database is closed");
String sql = "SELECT MAX(sequence) FROM revs";
Cursor cursor = null;
long result = 0;
try {
cursor = this.sqlDb.rawQuery(sql, null);
if (cursor.moveToFirst()) {
if (cursor.columnType(0) == Cursor.FIELD_TYPE_INTEGER) {
result = cursor.getLong(0);
} else if (cursor.columnType(0) == Cursor.FIELD_TYPE_NULL) {
result = SEQUENCE_NUMBER_START;
} else {
throw new IllegalStateException("SQLite return an unexpected value.");
}
}
} catch (SQLException e) {
Log.e(LOG_TAG, "Error getting last sequence", e);
} finally {
DatabaseUtils.closeCursorQuietly(cursor);
}
return result;
}