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Posted to oak-commits@jackrabbit.apache.org by re...@apache.org on 2015/03/26 17:33:15 UTC
svn commit: r1669365 - in /jackrabbit/oak/branches/1.0: ./
oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/
Author: reschke
Date: Thu Mar 26 16:33:14 2015
New Revision: 1669365
URL: http://svn.apache.org/r1669365
Log:
OAK-1266 - address various FindBugs warnings (ported to 1.0)
Modified:
jackrabbit/oak/branches/1.0/ (props changed)
jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java
jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBConnectionHandler.java
jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java
Propchange: jackrabbit/oak/branches/1.0/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Thu Mar 26 16:33:14 2015
@@ -1,2 +1,2 @@
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/jackrabbit/trunk:1345480
Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java?rev=1669365&r1=1669364&r2=1669365&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBBlobStore.java Thu Mar 26 16:33:14 2015
@@ -75,12 +75,15 @@ public class RDBBlobStore extends Cachin
Connection con = null;
try {
con = this.ch.getRWConnection();
+ Statement stmt = null;
try {
- Statement stmt = con.createStatement();
+ stmt = con.createStatement();
stmt.execute("drop table " + tname);
stmt.close();
+ stmt = null;
con.commit();
} catch (SQLException ex) {
+ this.ch.closeStatement(stmt);
LOG.debug("attempting to drop: " + tname);
}
} catch (SQLException ex) {
@@ -268,31 +271,39 @@ public class RDBBlobStore extends Cachin
List<String> tablesCreated = new ArrayList<String>();
List<String> tablesPresent = new ArrayList<String>();
+ Statement createStatement = null;
+
try {
for (String tableName : new String[] { this.tnData, this.tnMeta }) {
+ PreparedStatement checkStatement = null;
try {
- PreparedStatement stmt = con.prepareStatement("select ID from " + tableName + " where ID = ?");
- stmt.setString(1, "0");
- stmt.executeQuery();
+ checkStatement = con.prepareStatement("select ID from " + tableName + " where ID = ?");
+ checkStatement.setString(1, "0");
+ checkStatement.executeQuery();
+ checkStatement.close();
+ checkStatement = null;
con.commit();
tablesPresent.add(tableName);
} catch (SQLException ex) {
+ this.ch.closeStatement(checkStatement);
+
// table does not appear to exist
con.rollback();
DB db = DB.getValue(md.getDatabaseProductName());
- Statement stmt = con.createStatement();
+ createStatement = con.createStatement();
if (this.tnMeta.equals(tableName)) {
String ct = db.getMetaTableCreationStatement(tableName);
- stmt.execute(ct);
+ createStatement.execute(ct);
} else {
String ct = db.getDataTableCreationStatement(tableName);
- stmt.execute(ct);
+ createStatement.execute(ct);
}
- stmt.close();
+ createStatement.close();
+ createStatement = null;
con.commit();
@@ -316,6 +327,7 @@ public class RDBBlobStore extends Cachin
this.callStack = LOG.isDebugEnabled() ? new Exception("call stack of RDBBlobStore creation") : null;
} finally {
+ this.ch.closeStatement(createStatement);
this.ch.closeConnection(con);
}
}
@@ -469,18 +481,20 @@ public class RDBBlobStore extends Cachin
@Override
protected void mark(BlockId blockId) throws Exception {
Connection con = this.ch.getRWConnection();
+ PreparedStatement prep = null;
try {
if (minLastModified == 0) {
return;
}
String id = StringUtils.convertBytesToHex(blockId.getDigest());
- PreparedStatement prep = con.prepareStatement("update " + this.tnMeta + " set LASTMOD = ? where ID = ? and LASTMOD < ?");
+ prep = con.prepareStatement("update " + this.tnMeta + " set LASTMOD = ? where ID = ? and LASTMOD < ?");
prep.setLong(1, System.currentTimeMillis());
prep.setString(2, id);
prep.setLong(3, minLastModified);
prep.executeUpdate();
prep.close();
} finally {
+ this.ch.closeStatement(prep);
con.commit();
this.ch.closeConnection(con);
}
@@ -497,29 +511,43 @@ public class RDBBlobStore extends Cachin
private int sweepFromDatabase() throws SQLException {
Connection con = this.ch.getRWConnection();
+ PreparedStatement prepCheck = null, prepDelMeta = null, prepDelData = null;
+ ResultSet rs = null;
try {
int count = 0;
- PreparedStatement prep = con.prepareStatement("select ID from " + this.tnMeta + " where LASTMOD < ?");
- prep.setLong(1, minLastModified);
- ResultSet rs = prep.executeQuery();
+ prepCheck = con.prepareStatement("select ID from " + this.tnMeta + " where LASTMOD < ?");
+ prepCheck.setLong(1, minLastModified);
+ rs = prepCheck.executeQuery();
ArrayList<String> ids = new ArrayList<String>();
while (rs.next()) {
ids.add(rs.getString(1));
}
- prep = con.prepareStatement("delete from " + this.tnMeta + " where ID = ?");
- PreparedStatement prepData = con.prepareStatement("delete from " + this.tnData + " where ID = ?");
+ rs.close();
+ rs = null;
+ prepCheck.close();
+ prepCheck = null;
+
+ prepDelMeta = con.prepareStatement("delete from " + this.tnMeta + " where ID = ?");
+ prepDelData = con.prepareStatement("delete from " + this.tnData + " where ID = ?");
+
for (String id : ids) {
- prep.setString(1, id);
- prep.execute();
- prepData.setString(1, id);
- prepData.execute();
+ prepDelMeta.setString(1, id);
+ prepDelMeta.execute();
+ prepDelData.setString(1, id);
+ prepDelData.execute();
count++;
}
- prepData.close();
- prep.close();
+ prepDelMeta.close();
+ prepDelMeta = null;
+ prepDelData.close();
+ prepDelData = null;
minLastModified = 0;
return count;
} finally {
+ this.ch.closeResultSet(rs);
+ this.ch.closeStatement(prepCheck);
+ this.ch.closeStatement(prepDelMeta);
+ this.ch.closeStatement(prepDelData);
con.commit();
this.ch.closeConnection(con);
}
@@ -535,10 +563,10 @@ public class RDBBlobStore extends Cachin
}
Connection con = this.ch.getRWConnection();
- try {
- PreparedStatement prepMeta = null;
- PreparedStatement prepData = null;
+ PreparedStatement prepMeta = null;
+ PreparedStatement prepData = null;
+ try {
StringBuilder inClause = new StringBuilder();
int batch = chunkIds.size();
for (int i = 0; i < batch; i++) {
@@ -569,8 +597,12 @@ public class RDBBlobStore extends Cachin
prepMeta.execute();
prepData.execute();
prepMeta.close();
+ prepMeta = null;
prepData.close();
+ prepData = null;
} finally {
+ this.ch.closeStatement(prepMeta);
+ this.ch.closeStatement(prepData);
con.commit();
this.ch.closeConnection(con);
}
@@ -633,23 +665,29 @@ public class RDBBlobStore extends Cachin
Connection connection = null;
try {
connection = this.ch.getROConnection();
+ PreparedStatement prep = null;
+ ResultSet rs = null;
try {
- PreparedStatement prep = connection.prepareStatement(query.toString());
+ prep = connection.prepareStatement(query.toString());
int idx = 1;
if (maxLastModifiedTime > 0) {
prep.setLong(idx++, maxLastModifiedTime);
}
if (lastId != null) {
- prep.setString(idx++, lastId);
+ prep.setString(idx, lastId);
}
prep.setFetchSize(BATCHSIZE);
- ResultSet rs = prep.executeQuery();
+ rs = prep.executeQuery();
while (rs.next()) {
lastId = rs.getString(1);
results.add(lastId);
}
+ rs.close();
+ rs = null;
return !results.isEmpty();
} finally {
+ this.ch.closeResultSet(rs);
+ this.ch.closeStatement(prep);
connection.commit();
this.ch.closeConnection(connection);
}
Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBConnectionHandler.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBConnectionHandler.java?rev=1669365&r1=1669364&r2=1669365&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBConnectionHandler.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBConnectionHandler.java Thu Mar 26 16:33:14 2015
@@ -17,8 +17,11 @@
package org.apache.jackrabbit.oak.plugins.document.rdb;
import java.sql.Connection;
+import java.sql.ResultSet;
import java.sql.SQLException;
+import java.sql.Statement;
+import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.sql.DataSource;
@@ -103,4 +106,36 @@ public class RDBConnectionHandler {
}
}
}
+
+ /**
+ * Closes a {@link Statement}, logging potential problems.
+ * @return null
+ */
+ public <T extends Statement> T closeStatement(@CheckForNull T stmt) {
+ if (stmt != null) {
+ try {
+ stmt.close();
+ } catch (SQLException ex) {
+ LOG.debug("Closing statement", ex);
+ }
+ }
+ return null;
+ }
+
+ /**
+ * Closes a {@link ResultSet}, logging potential problems.
+ *
+ * @return null
+ */
+ public ResultSet closeResultSet(@CheckForNull ResultSet rs) {
+ if (rs != null) {
+ try {
+ rs.close();
+ } catch (SQLException ex) {
+ LOG.debug("Closing result set", ex);
+ }
+ }
+
+ return null;
+ }
}
Modified: jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java?rev=1669365&r1=1669364&r2=1669365&view=diff
==============================================================================
--- jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java (original)
+++ jackrabbit/oak/branches/1.0/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/rdb/RDBDocumentStore.java Thu Mar 26 16:33:14 2015
@@ -323,7 +323,7 @@ public class RDBDocumentStore implements
} catch (SQLException ex) {
LOG.debug("attempting to drop: " + tname, ex);
} finally {
- close(stmt);
+ this.ch.closeStatement(stmt);
}
} catch (SQLException ex) {
LOG.debug("attempting to drop: " + tname, ex);
@@ -685,7 +685,7 @@ public class RDBDocumentStore implements
con.commit();
}
finally {
- close(stmt);
+ this.ch.closeStatement(stmt);
}
}
@@ -763,9 +763,9 @@ public class RDBDocumentStore implements
}
}
finally {
- close(checkResultSet);
- close(checkStatement);
- close(creatStatement);
+ this.ch.closeResultSet(checkResultSet);
+ this.ch.closeStatement(checkStatement);
+ this.ch.closeStatement(creatStatement);
}
}
@@ -1681,30 +1681,6 @@ public class RDBDocumentStore implements
return n != null ? n.longValue() : -1;
}
- private static <T extends Statement> T close(@CheckForNull T stmt) {
- if (stmt != null) {
- try {
- stmt.close();
- } catch (SQLException ex) {
- LOG.debug("Closing statement", ex);
- }
- }
-
- return null;
- }
-
- private static ResultSet close(@CheckForNull ResultSet rs) {
- if (rs != null) {
- try {
- rs.close();
- } catch (SQLException ex) {
- LOG.debug("Closing result set", ex);
- }
- }
-
- return null;
- }
-
/**
* Adds a document to the {@link #nodesCache} iff there is no document in
* the cache with the document key. This method does not acquire a lock from