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authorAnton Tananaev <anton.tananaev@gmail.com>2014-10-09 13:24:47 +1300
committerAnton Tananaev <anton.tananaev@gmail.com>2014-10-09 13:24:47 +1300
commit4f5f815f88e81000510ef2544e3e392fd7465d8e (patch)
tree3e36831dacd62eb36242973517ff41fa069b272a /src/org/traccar/database/NamedParameterStatement.java
parent21d69f45cd5badf52e175fc234c5c7bd3c2aeb35 (diff)
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Integrate c3p0 database library
Diffstat (limited to 'src/org/traccar/database/NamedParameterStatement.java')
-rw-r--r--src/org/traccar/database/NamedParameterStatement.java166
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diff --git a/src/org/traccar/database/NamedParameterStatement.java b/src/org/traccar/database/NamedParameterStatement.java
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+/*
+ * Copyright 2012 - 2014 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.
+ */
+package org.traccar.database;
+
+import java.sql.*;
+import java.util.*;
+import java.util.Date;
+
+public class NamedParameterStatement {
+
+ private final Map<String, List<Integer>> indexMap;
+
+ private final String parsedQuery;
+
+ public NamedParameterStatement(String query) {
+ indexMap = new HashMap<String, List<Integer>>();
+ parsedQuery = parse(query, indexMap);
+ }
+
+ static String parse(String query, Map<String, List<Integer>> paramMap) {
+
+ int length = query.length();
+ StringBuilder parsedQuery = new StringBuilder(length);
+ boolean inSingleQuote = false;
+ boolean inDoubleQuote = false;
+ int index = 1;
+
+ for(int i = 0; i < length; i++) {
+
+ char c = query.charAt(i);
+
+ // String end
+ if (inSingleQuote) {
+ if (c == '\'') inSingleQuote = false;
+ } else if (inDoubleQuote) {
+ if (c == '"') inDoubleQuote = false;
+ } else {
+
+ // String begin
+ if (c == '\'') {
+ inSingleQuote = true;
+ } else if (c == '"') {
+ inDoubleQuote = true;
+ } else if (c == ':' && i + 1 < length &&
+ Character.isJavaIdentifierStart(query.charAt(i + 1))) {
+
+ // Identifier name
+ int j = i + 2;
+ while (j < length && Character.isJavaIdentifierPart(query.charAt(j))) j++;
+
+ String name = query.substring(i + 1, j);
+ c = '?';
+ i += name.length();
+
+ // Add to list
+ List<Integer> indexList = paramMap.get(name);
+ if (indexList == null) {
+ indexList = new LinkedList<Integer>();
+ paramMap.put(name, indexList);
+ }
+ indexList.add(index);
+
+ index++;
+ }
+ }
+
+ parsedQuery.append(c);
+ }
+
+ return parsedQuery.toString();
+ }
+
+ public PreparedStatement prepare(Connection connection, int autoGeneratedKeys) throws SQLException {
+ return connection.prepareStatement(parsedQuery, autoGeneratedKeys);
+ }
+
+ public PreparedStatement prepare(Connection connection) throws SQLException {
+ return prepare(connection, Statement.NO_GENERATED_KEYS);
+ }
+
+ public void setInt(PreparedStatement statement, String name, Integer value) throws SQLException {
+
+ List<Integer> indexList = indexMap.get(name);
+ if (indexList != null) for (Integer index: indexList) {
+ if (value != null) {
+ statement.setInt(index, value);
+ } else {
+ statement.setNull(index, Types.INTEGER);
+ }
+ }
+ }
+
+ public void setLong(PreparedStatement statement, String name, Long value) throws SQLException {
+
+ List<Integer> indexList = indexMap.get(name);
+ if (indexList != null) for (Integer index: indexList) {
+ if (value != null) {
+ statement.setLong(index, value);
+ } else {
+ statement.setNull(index, Types.INTEGER);
+ }
+ }
+ }
+
+ public void setBoolean(PreparedStatement statement, String name, Boolean value) throws SQLException {
+
+ List<Integer> indexList = indexMap.get(name);
+ if (indexList != null) for (Integer index: indexList) {
+ if (value != null) {
+ statement.setBoolean(index, value);
+ } else {
+ statement.setNull(index, Types.BOOLEAN);
+ }
+ }
+ }
+
+ public void setDouble(PreparedStatement statement, String name, Double value) throws SQLException {
+
+ List<Integer> indexList = indexMap.get(name);
+ if (indexList != null) for (Integer index: indexList) {
+ if (value != null) {
+ statement.setDouble(index, value);
+ } else {
+ statement.setNull(index, Types.DOUBLE);
+ }
+ }
+ }
+
+ public void setTimestamp(PreparedStatement statement, String name, Date value) throws SQLException {
+
+ List<Integer> indexList = indexMap.get(name);
+ if (indexList != null) for (Integer index: indexList) {
+ if (value != null) {
+ statement.setTimestamp(index, new Timestamp(value.getTime()));
+ } else {
+ statement.setNull(index, Types.TIMESTAMP);
+ }
+ }
+ }
+
+ public void setString(PreparedStatement statement, String name, String value) throws SQLException {
+
+ List<Integer> indexList = indexMap.get(name);
+ if (indexList != null) for (Integer index: indexList) {
+ if (value != null) {
+ statement.setString(index, value);
+ } else {
+ statement.setNull(index, Types.VARCHAR);
+ }
+ }
+ }
+
+}