X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fonap%2Fdmaap%2Fdbcapi%2Fdatabase%2FLoadSchema.java;fp=src%2Fmain%2Fjava%2Forg%2Fonap%2Fdmaap%2Fdbcapi%2Fdatabase%2FLoadSchema.java;h=6e64c4a1edf4d5391ad742299ab9896b53770671;hb=0bff051a842b164b680bc938f4a56db435dd5841;hp=0000000000000000000000000000000000000000;hpb=89e6d8f0b87a84b2de6cdab641b28692b9cf3be1;p=dmaap%2Fdbcapi.git

diff --git a/src/main/java/org/onap/dmaap/dbcapi/database/LoadSchema.java b/src/main/java/org/onap/dmaap/dbcapi/database/LoadSchema.java
new file mode 100644
index 0000000..6e64c4a
--- /dev/null
+++ b/src/main/java/org/onap/dmaap/dbcapi/database/LoadSchema.java
@@ -0,0 +1,117 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dmaap
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dmaap.dbcapi.database;
+
+import java.io.*;
+import java.sql.*;
+
+import org.apache.log4j.Logger;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+
+import org.onap.dmaap.dbcapi.logging.DmaapbcLogMessageEnum;
+
+public class LoadSchema	{
+	private static final EELFLogger logger = EELFManager.getInstance().getLogger(LoadSchema.class);
+	private static final EELFLogger appLogger = EELFManager.getInstance().getApplicationLogger();
+	private static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
+	private static final EELFLogger debugLogger = EELFManager.getInstance().getDebugLogger();
+	private static final EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
+	private static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
+	
+	static int getVer(Statement s) throws SQLException {
+		ResultSet rs = null;
+		try {
+			rs = s.executeQuery("SELECT version FROM dmaapbc_sch_ver");
+			rs.next();
+			return(rs.getInt(1));
+		} finally {
+			if (rs != null) {
+				rs.close();
+			}
+		}
+	}
+	static void upgrade() throws SQLException {
+		ConnectionFactory cf = ConnectionFactory.getDefaultInstance();
+		Connection c = null;
+		Statement stmt = null;
+		InputStream is = null;
+		try {
+			c = cf.get(true);
+			stmt = c.createStatement();
+			int newver = -1;
+			try {
+				newver = getVer(stmt);
+			} catch (Exception e) {}
+			logger.info("Database schema currently at version " + newver++);
+			while ((is = LoadSchema.class.getClassLoader().getResourceAsStream("schema_" + newver + ".sql")) != null) {
+				logger.info("Upgrading database schema to version " + newver);
+				BufferedReader br = new BufferedReader(new InputStreamReader(is));
+				String s;
+				String sofar = null;
+				while ((s = br.readLine()) != null) {
+					logger.info("SCHEMA: " + s);
+					s = s.trim();
+					if (s.length() == 0 || s.startsWith("--")) {
+						continue;
+					}
+					if (sofar == null) {
+						sofar = s;
+					} else {
+						sofar = sofar + " " + s;
+					}
+					if (s.endsWith(";")) {
+						sofar = sofar.substring(0, sofar.length() - 1);
+						boolean ignore = false;
+						if (sofar.startsWith("@")) {
+							ignore = true;
+							sofar = sofar.substring(1).trim();
+						}
+						try {
+							stmt.execute(sofar);
+						} catch (SQLException sqle) {
+							if (!ignore) {
+								throw sqle;
+							}
+						}
+						sofar = null;
+					}
+				}
+				is.close();
+				is = null;
+				if (getVer(stmt) != newver) {
+					throw new SQLException("Schema version not properly updated to " + newver + " by upgrade script");
+				}
+				logger.info("Upgrade to database schema version " + newver + " successful");
+				newver++;
+			}
+		} catch (IOException ioe) {
+			throw new SQLException(ioe);
+		} finally {
+			if (stmt != null) { try { stmt.close(); } catch (Exception e) {}}
+			if (c != null) { try { c.close(); } catch (Exception e) {}}
+		}
+	}
+	public static void main(String[] args) throws Exception {
+		upgrade();
+	}
+}