--- /dev/null
+/*-
+ * ============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.lang.reflect.*;
+import java.sql.*;
+import java.util.*;
+
+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 DBFieldHandler {
+ static final EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
+
+ public static interface SqlOp {
+ public Object get(ResultSet rs, int index) throws Exception;
+ public void set(PreparedStatement ps, int index, Object value) throws Exception;
+ }
+ private static class AofString implements SqlOp {
+ public Object get(ResultSet rs, int index) throws Exception {
+ String val = rs.getString(index);
+ if (val == null) {
+ return(null);
+ }
+ String[] ret = val.split(",");
+ for (int i = 0; i < ret.length; i++) {
+ ret[i] = funesc(ret[i]);
+ }
+ return(ret);
+ }
+ public void set(PreparedStatement ps, int index, Object x) throws Exception {
+ String[] val = (String[])x;
+ if (val == null) {
+ ps.setString(index, null);
+ return;
+ }
+ StringBuffer sb = new StringBuffer();
+ String sep = "";
+ for (String s: val) {
+ sb.append(sep).append(fesc(s));
+ sep = ",";
+ }
+ ps.setString(index, sb.toString());
+ }
+ }
+ private static class EnumSql implements SqlOp {
+ private Class enclass;
+ public EnumSql(Class enclass) {
+ this.enclass = enclass;
+ }
+ @SuppressWarnings("unchecked")
+ public Object get(ResultSet rs, int index) throws Exception {
+ String val = rs.getString(index);
+ if (val == null) {
+ return(null);
+ } else {
+ return(Enum.valueOf(enclass, val));
+ }
+ }
+ public void set(PreparedStatement ps, int index, Object value) throws Exception {
+ if (value == null) {
+ ps.setString(index, null);
+ } else {
+ ps.setString(index, value.toString());
+ }
+ }
+ }
+ private static class SqlDate implements SqlOp {
+ public Object get(ResultSet rs, int index) throws Exception {
+ return(rs.getTimestamp(index));
+ }
+ public void set(PreparedStatement ps, int index, Object val) throws Exception {
+ if (val instanceof java.util.Date && !(val instanceof java.sql.Timestamp)) {
+ val = new java.sql.Timestamp(((java.util.Date)val).getTime());
+ }
+ ps.setTimestamp(index, (java.sql.Timestamp)val);
+ }
+ }
+ private static class SqlType implements SqlOp {
+ private Method sqlget;
+ private Method sqlset;
+ private SqlType(String tag) throws Exception {
+ sqlget = ResultSet.class.getMethod("get" + tag, Integer.TYPE);
+ sqlset = PreparedStatement.class.getMethod("set" + tag, Integer.TYPE, sqlget.getReturnType());
+ sqltypes.put(sqlget.getReturnType().getName(), this);
+ }
+ public Object get(ResultSet rs, int index) throws Exception {
+ return(sqlget.invoke(rs, index));
+ }
+ public void set(PreparedStatement ps, int index, Object val) throws Exception {
+ try {
+ sqlset.invoke(ps, index, val);
+ } catch (Exception e) {
+ errorLogger.error(DmaapbcLogMessageEnum.DB_FIELD_INIT_ERROR, Integer.toString(index), val.toString(), ps.toString());
+ throw e;
+ }
+ }
+ }
+ private static Map<String, SqlOp> sqltypes;
+ static {
+ sqltypes = new HashMap<String, SqlOp>();
+ sqltypes.put("[Ljava.lang.String;", new AofString());
+ sqltypes.put("java.util.Date", new SqlDate());
+ try {
+ new SqlType("Boolean");
+ new SqlType("Timestamp");
+ new SqlType("Double");
+ new SqlType("Float");
+ new SqlType("Int");
+ new SqlType("Long");
+ new SqlType("Short");
+ new SqlType("String");
+ } catch (Exception e) {
+ errorLogger.error(DmaapbcLogMessageEnum.DB_ACCESS_INIT_ERROR, e.getMessage() );
+ }
+ }
+ private Method objget;
+ private Method objset;
+ private SqlOp sqlop;
+ private int fieldnum;
+ public void copy(Object from, Object to) throws Exception {
+ objset.invoke(to, objget.invoke(from));
+ }
+ public void setKey(Object o, String key) throws Exception {
+ objset.invoke(o, key);
+ }
+ public String getKey(Object o) throws Exception {
+ return((String)objget.invoke(o));
+ }
+ public void toSQL(Object o, PreparedStatement ps) throws Exception {
+ sqlop.set(ps, fieldnum, objget.invoke(o));
+ }
+ public void fromSQL(ResultSet r, Object o) throws Exception {
+ objset.invoke(o, sqlop.get(r, fieldnum));
+ }
+ public DBFieldHandler(Class<?> c, String fieldname, int fieldnum) throws Exception {
+ this(c, fieldname, fieldnum, null);
+ }
+ public DBFieldHandler(Class<?> c, String fieldname, int fieldnum, SqlOp op) throws Exception {
+ this.fieldnum = fieldnum;
+ StringBuffer sb = new StringBuffer();
+ for (String s: fieldname.split("_")) {
+ sb.append(s.substring(0, 1).toUpperCase()).append(s.substring(1));
+ }
+ String camelcase = sb.toString();
+ try {
+ objget = c.getMethod("is" + camelcase);
+ } catch (Exception e) {
+ objget = c.getMethod("get" + camelcase);
+ }
+ objset = c.getMethod("set" + camelcase, objget.getReturnType());
+ sqlop = op;
+ if (sqlop != null) {
+ return;
+ }
+ Class<?> x = objget.getReturnType();
+ if (x.isEnum()) {
+ sqlop = new EnumSql(x);
+ return;
+ }
+ sqlop = sqltypes.get(x.getName());
+ if (sqlop != null) {
+ return;
+ }
+ errorLogger.error(DmaapbcLogMessageEnum.DB_NO_FIELD_HANDLER, c.getName(), fieldname, Integer.toString(fieldnum), x.getName());
+ }
+ public static String fesc(String s) {
+ if (s == null) {
+ return(s);
+ }
+ return(s.replaceAll("@", "@a").replaceAll(";", "@s").replaceAll(",", "@c"));
+ }
+ public static String funesc(String s) {
+ if (s == null) {
+ return(s);
+ }
+ return(s.replaceAll("@c", ",").replaceAll("@s", ";").replaceAll("@a", "@"));
+ }
+}
Code Review / dmaap / dbcapi.git / blobdiff