svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.db / org.gvsig.fmap.dal.db.jdbc / src / main / java / org / gvsig / fmap / dal / store / jdbc / JDBCStoreProvider.java @ 41437
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.store.jdbc; |
25 | |||
26 | import java.security.InvalidParameterException; |
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27 | import java.sql.Connection; |
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28 | import java.sql.PreparedStatement; |
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29 | import java.sql.ResultSet; |
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30 | import java.sql.SQLException; |
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31 | import java.sql.Statement; |
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32 | import java.util.ArrayList; |
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33 | import java.util.Collections; |
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34 | import java.util.Iterator; |
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35 | import java.util.List; |
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36 | |||
37 | import org.cresques.cts.IProjection; |
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38 | import org.gvsig.fmap.dal.DALLocator; |
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39 | import org.gvsig.fmap.dal.DataManager; |
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40 | import org.gvsig.fmap.dal.DataServerExplorer; |
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41 | import org.gvsig.fmap.dal.DataStore; |
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42 | import org.gvsig.fmap.dal.DataStoreNotification; |
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43 | import org.gvsig.fmap.dal.DataTypes; |
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44 | import org.gvsig.fmap.dal.exception.CloseException; |
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45 | import org.gvsig.fmap.dal.exception.DataException; |
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46 | import org.gvsig.fmap.dal.exception.InitializeException; |
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47 | import org.gvsig.fmap.dal.exception.OpenException; |
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48 | import org.gvsig.fmap.dal.exception.ReadException; |
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49 | import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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50 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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51 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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52 | import org.gvsig.fmap.dal.feature.FeatureQuery; |
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53 | import org.gvsig.fmap.dal.feature.FeatureType; |
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54 | import org.gvsig.fmap.dal.feature.spi.AbstractFeatureStoreProvider; |
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55 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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56 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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57 | import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
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58 | import org.gvsig.fmap.dal.resource.ResourceAction; |
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59 | import org.gvsig.fmap.dal.resource.exception.ResourceExecuteException; |
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60 | import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
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61 | import org.gvsig.fmap.dal.spi.DataStoreProviderServices; |
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62 | import org.gvsig.fmap.dal.store.db.DBHelper; |
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63 | import org.gvsig.fmap.dal.store.db.FeatureTypeHelper; |
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64 | import org.gvsig.fmap.dal.store.jdbc.exception.InvalidResultSetIdException; |
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65 | import org.gvsig.fmap.dal.store.jdbc.exception.JDBCException; |
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66 | import org.gvsig.fmap.dal.store.jdbc.exception.JDBCExecutePreparedSQLException; |
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67 | import org.gvsig.fmap.dal.store.jdbc.exception.JDBCSQLException; |
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68 | import org.gvsig.fmap.geom.Geometry; |
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69 | import org.gvsig.fmap.geom.GeometryLocator; |
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70 | import org.gvsig.fmap.geom.GeometryManager; |
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71 | import org.gvsig.fmap.geom.primitive.Envelope; |
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72 | import org.gvsig.tools.dynobject.DynObject; |
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73 | import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException; |
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74 | import org.gvsig.tools.exception.BaseException; |
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75 | import org.slf4j.Logger; |
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76 | import org.slf4j.LoggerFactory; |
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77 | |||
78 | |||
79 | /**
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80 | * @author jmvivo
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81 | *
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82 | */
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83 | public class JDBCStoreProvider extends AbstractFeatureStoreProvider |
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84 | implements JDBCHelperUser {
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85 | |||
86 | final static private Logger logger = LoggerFactory |
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87 | .getLogger(JDBCStoreProvider.class); |
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88 | |||
89 | private List<ResultSetInfo> resulsetList; |
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90 | |||
91 | public static String NAME = "JDBC"; |
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92 | public static String DESCRIPTION = "JDBC source"; |
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93 | |||
94 | public static final String METADATA_DEFINITION_NAME = NAME; |
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95 | |||
96 | private long mlsecondsToZombie = 1000 * 60 * 10; // 10 Min |
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97 | |||
98 | protected JDBCHelper helper;
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99 | |||
100 | protected boolean directSQLMode; |
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101 | |||
102 | private Long totalCount = null; |
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103 | private GeometryManager geomManager = null; |
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104 | |||
105 | public JDBCStoreProvider(JDBCStoreParameters params,
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106 | DataStoreProviderServices storeServices) throws InitializeException {
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107 | this(
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108 | params, |
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109 | storeServices, |
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110 | DBHelper.newMetadataContainer(METADATA_DEFINITION_NAME) |
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111 | ); |
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112 | } |
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113 | |||
114 | protected JDBCStoreProvider(JDBCStoreParameters params,
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115 | DataStoreProviderServices storeServices, DynObject metadata) |
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116 | throws InitializeException {
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117 | super(params, storeServices, metadata);
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118 | geomManager = GeometryLocator.getGeometryManager(); |
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119 | |||
120 | resulsetList = new ArrayList<ResultSetInfo>(10); |
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121 | |||
122 | helper = createHelper(); |
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123 | if (params.getSQL() != null && (params.getSQL()).trim().length() > 0) { |
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124 | directSQLMode = true;
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125 | } |
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126 | |||
127 | this.initFeatureType();
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128 | } |
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129 | |||
130 | public Object getDynValue(String name) throws DynFieldNotFoundException { |
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131 | try {
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132 | if( DataStore.METADATA_ENVELOPE.equalsIgnoreCase(name) ) {
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133 | Envelope env = this.getEnvelope();
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134 | if( env != null ) { |
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135 | return env;
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136 | } |
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137 | } else if( DataStore.METADATA_CRS.equalsIgnoreCase(name) ) { |
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138 | IProjection proj; |
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139 | proj = this.getFeatureStore().getDefaultFeatureType().getDefaultSRS();
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140 | if( proj != null ) { |
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141 | return proj;
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142 | } |
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143 | } |
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144 | } catch (DataException e) {
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145 | throw new RuntimeException(e); |
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146 | } |
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147 | return super.getDynValue(name); |
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148 | } |
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149 | |||
150 | |||
151 | protected JDBCStoreParameters getJDBCParameters() {
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152 | return (JDBCStoreParameters) this.getParameters(); |
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153 | } |
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154 | |||
155 | |||
156 | /**
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157 | * Load data form a resulset.<br>
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158 | *
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159 | * <strong>Note:</strong><br>
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160 | * this method have to perform <code>resouceBegin</code> at the begining and
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161 | * <code>resourceEnd</code> at the end of execution.
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162 | *
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163 | *
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164 | * @param data
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165 | * @param resulsetID
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166 | *
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167 | * @return
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168 | * @throws DataException
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169 | */
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170 | public void loadFeatureProvider(final FeatureProvider data, final int resultsetID) |
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171 | throws DataException {
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172 | getResource().execute(new ResourceAction() {
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173 | public Object run() throws Exception { |
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174 | ResultSet rs = getResultSet(resultsetID);
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175 | FeatureAttributeDescriptor attr; |
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176 | Iterator<FeatureAttributeDescriptor> iter = FeatureTypeHelper.iterator(data.getType());
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177 | while (iter.hasNext()) {
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178 | attr = iter.next(); |
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179 | loadFeatureProviderValue(data, rs, attr); |
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180 | } |
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181 | return null; |
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182 | } |
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183 | 41437 | jjdelcerro | public String toString() { |
184 | return "loadFeature"; |
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185 | } |
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186 | |||
187 | 40435 | jjdelcerro | }); |
188 | } |
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189 | |||
190 | protected void loadFeatureProviderValue(FeatureProvider data, ResultSet rs, |
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191 | FeatureAttributeDescriptor attr) throws DataException {
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192 | if (attr.getType() == DataTypes.GEOMETRY) {
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193 | byte[] buffer; |
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194 | try {
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195 | buffer = rs.getBytes(attr.getIndex() + 1);
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196 | if (buffer == null) { |
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197 | data.set(attr.getIndex(), null);
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198 | } else {
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199 | data.set(attr.getIndex(), this.helper.getGeometry(buffer));
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200 | } |
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201 | } catch (SQLException e) { |
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202 | throw new JDBCSQLException(e); |
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203 | } catch (BaseException e) {
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204 | throw new ReadException(getProviderName(), e); |
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205 | } |
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206 | |||
207 | } else {
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208 | try {
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209 | data.set(attr.getIndex(), rs.getObject(attr.getIndex() + 1));
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210 | } catch (SQLException e) { |
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211 | throw new JDBCSQLException(e); |
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212 | } |
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213 | } |
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214 | } |
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215 | |||
216 | public long getTimeToResulSetZombie() { |
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217 | return mlsecondsToZombie;
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218 | } |
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219 | |||
220 | public void setTimeToResulSetZombie(long mlSeconds) { |
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221 | mlsecondsToZombie = mlSeconds; |
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222 | } |
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223 | |||
224 | private class ResultSetInfo{ |
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225 | private ResultSet resultSet = null; |
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226 | private long lastUse = 0; |
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227 | |||
228 | public ResultSetInfo(ResultSet resulSet) { |
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229 | this.resultSet = resulSet;
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230 | used(); |
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231 | } |
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232 | |||
233 | private void used() { |
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234 | lastUse = System.currentTimeMillis();
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235 | } |
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236 | |||
237 | |||
238 | public ResultSet get() { |
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239 | used(); |
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240 | return resultSet;
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241 | } |
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242 | |||
243 | public boolean isZombie() { |
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244 | return System.currentTimeMillis() - lastUse > mlsecondsToZombie; |
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245 | } |
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246 | } |
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247 | |||
248 | public final int createResultSet(String sql, int fetchSize) |
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249 | throws DataException {
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250 | return createResultSet(sql, null, fetchSize); |
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251 | } |
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252 | |||
253 | public final int createResultSet(final String sql, final Object[] values, |
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254 | final int fetchSize) |
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255 | throws DataException {
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256 | logger.debug("Creating resultSet with sql: {}", sql);
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257 | synchronized (this) { |
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258 | checksResulsets(); |
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259 | return ((Integer) getResource().execute(new ResourceAction() { |
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260 | public Object run() throws Exception { |
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261 | ResultSetInfo newRs = |
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262 | new ResultSetInfo(createNewResultSet(sql, values,
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263 | fetchSize)); |
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264 | int newId = getNewId();
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265 | if (newId < 0) { |
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266 | newId = resulsetList.size(); |
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267 | resulsetList.add(newRs); |
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268 | } else {
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269 | resulsetList.set(newId, newRs); |
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270 | } |
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271 | logger.debug("Created resultset id: {} (total open: {})",
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272 | newId, getResultsetOpenCount()); |
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273 | |||
274 | return Integer.valueOf(newId); |
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275 | } |
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276 | })).intValue(); |
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277 | } |
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278 | } |
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279 | |||
280 | private int getNewId() { |
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281 | int newId;
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282 | if (resulsetList.size() < 1) { |
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283 | return -1; |
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284 | } |
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285 | for (newId = 0; newId < resulsetList.size(); newId++) { |
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286 | if (resulsetList.get(newId) == null) { |
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287 | return newId;
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288 | } |
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289 | } |
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290 | return -1; |
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291 | } |
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292 | |||
293 | protected final void forceCloseAllResultSet() |
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294 | throws ResourceExecuteException,
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295 | JDBCException { |
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296 | synchronized (this) { |
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297 | // FIXME: Esto no deberia funcionar.
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298 | Iterator iter = resulsetList.iterator();
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299 | Integer rsID = null; |
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300 | while (iter.hasNext()) {
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301 | rsID = (Integer) iter.next();
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302 | if (rsID != null) { |
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303 | try {
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304 | forceCloseResultSet(rsID.intValue()); |
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305 | } catch (InvalidResultSetIdException e) {
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306 | continue;
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307 | } |
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308 | } |
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309 | iter.remove(); |
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310 | } |
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311 | |||
312 | } |
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313 | } |
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314 | |||
315 | protected final void forceCloseResultSet(int rsID) |
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316 | throws ResourceExecuteException, JDBCException,
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317 | InvalidResultSetIdException { |
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318 | logger.warn("Close forced of resultSet ({})", rsID);
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319 | closeResulset(rsID); |
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320 | } |
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321 | |||
322 | protected final ResultSet getResultSet(int resultsetID) |
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323 | throws InvalidResultSetIdException {
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324 | if (resultsetID >= resulsetList.size()) {
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325 | throw new InvalidResultSetIdException(resultsetID); |
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326 | } |
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327 | ResultSetInfo rsInfo = resulsetList.get(resultsetID); |
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328 | if (rsInfo == null) { |
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329 | throw new InvalidResultSetIdException(resultsetID); |
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330 | } |
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331 | return rsInfo.get();
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332 | |||
333 | } |
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334 | |||
335 | private ResultSet dropResultSet(int resultsetID) |
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336 | throws InvalidResultSetIdException {
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337 | if (resultsetID >= resulsetList.size()) {
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338 | throw new InvalidResultSetIdException(resultsetID); |
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339 | } |
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340 | ResultSetInfo rsInfo = (ResultSetInfo) resulsetList.get(resultsetID); |
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341 | if (rsInfo == null) { |
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342 | throw new InvalidResultSetIdException(resultsetID); |
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343 | } |
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344 | if (resultsetID == resulsetList.size() - 1) { |
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345 | resulsetList.remove(resultsetID); |
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346 | } else {
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347 | resulsetList.set(resultsetID, null);
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348 | } |
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349 | return rsInfo.get();
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350 | } |
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351 | |||
352 | |||
353 | public final boolean resulsetNext(final int resultsetID) |
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354 | throws JDBCException,
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355 | InvalidResultSetIdException, ResourceExecuteException { |
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356 | return ((Boolean) getResource().execute(new ResourceAction() { |
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357 | public Object run() throws Exception { |
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358 | boolean bool = getResultSet(resultsetID).next();
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359 | return Boolean.valueOf(bool); |
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360 | } |
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361 | })).booleanValue(); |
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362 | } |
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363 | |||
364 | public final void closeResulset(final int resultsetID) |
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365 | throws JDBCException,
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366 | InvalidResultSetIdException, ResourceExecuteException { |
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367 | synchronized (this) { |
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368 | getResource().execute(new ResourceAction() {
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369 | public Object run() throws Exception { |
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370 | ResultSet rs = dropResultSet(resultsetID);
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371 | closeResulset(rs); |
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372 | return null; |
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373 | } |
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374 | }); |
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375 | if (logger.isDebugEnabled()) {
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376 | logger.debug(" id: " + resultsetID + " (total " |
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377 | + getResultsetOpenCount() + ")");
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378 | } |
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379 | checksResulsets(); |
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380 | } |
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381 | } |
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382 | |||
383 | public final void checksResulsets() throws JDBCException, |
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384 | InvalidResultSetIdException, ResourceExecuteException { |
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385 | synchronized (this) { |
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386 | getResource().execute(new ResourceAction() {
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387 | public Object run() throws Exception { |
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388 | ResultSetInfo rsInfo; |
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389 | for (int i = 0; i < resulsetList.size(); i++) { |
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390 | rsInfo = (ResultSetInfo) resulsetList.get(i); |
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391 | if (rsInfo == null) { |
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392 | continue;
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393 | } |
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394 | if (rsInfo.isZombie()) {
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395 | forceCloseResultSet(i); |
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396 | } |
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397 | } |
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398 | return null; |
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399 | } |
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400 | }); |
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401 | } |
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402 | } |
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403 | |||
404 | protected void closeResulset(final ResultSet rs) throws JDBCException, |
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405 | ResourceExecuteException { |
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406 | getResource().execute(new ResourceAction() {
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407 | public Object run() throws Exception { |
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408 | Statement st = rs.getStatement();
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409 | Connection con = st.getConnection();
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410 | try {
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411 | rs.close(); |
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412 | } finally {
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413 | // TODO revisar esto
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414 | try{ st.close(); } catch (Exception ex){ }; |
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415 | try{ con.close(); } catch (Exception ex){ }; |
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416 | } |
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417 | return null; |
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418 | } |
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419 | }); |
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420 | } |
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421 | |||
422 | private int getResultsetOpenCount() { |
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423 | int count = 0; |
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424 | Iterator<ResultSetInfo> iter = resulsetList.iterator();
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425 | while (iter.hasNext()) {
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426 | if (iter.next() != null) { |
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427 | count++; |
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428 | } |
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429 | } |
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430 | return count;
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431 | } |
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432 | |||
433 | protected final int openResulsetCount() { |
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434 | int count = 0; |
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435 | Iterator<ResultSetInfo> iter = resulsetList.iterator();
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436 | while (iter.hasNext()) {
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437 | if (iter.next() != null) { |
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438 | count++; |
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439 | } |
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440 | } |
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441 | return count;
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442 | } |
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443 | |||
444 | public boolean closeResourceRequested(ResourceProvider resource) { |
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445 | try {
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446 | checksResulsets(); |
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447 | return openResulsetCount() == 0 && closeResource(resource); |
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448 | } catch (DataException e) {
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449 | logger.error("Exception throws", e);
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450 | return false; |
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451 | } |
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452 | } |
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453 | |||
454 | |||
455 | protected String fixFilter(String filter) { |
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456 | if (filter == null) { |
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457 | return null; |
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458 | } |
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459 | |||
460 | return filter;
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461 | } |
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462 | |||
463 | protected JDBCHelper createHelper() throws InitializeException { |
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464 | return new JDBCHelper(this, getJDBCParameters()); |
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465 | } |
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466 | |||
467 | protected JDBCHelper getHelper() {
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468 | return helper;
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469 | } |
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470 | |||
471 | protected void resetCount() { |
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472 | totalCount = null;
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473 | } |
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474 | |||
475 | /**
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476 | * Get feature count for a <code>filter</code>.<br>
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477 | *
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478 | * <code>filter</code> can be <code>null</code>.<br>
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479 | *
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480 | * <strong>Note:</strong><br>
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481 | * this method have to perform <code>resouceBegin</code> at the begining and
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482 | * <code>resourceEnd</code> at the end of execution.
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483 | *
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484 | *
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485 | * @param filter
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486 | * @return
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487 | * @throws DataException
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488 | */
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489 | protected long getCount(String filter) |
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490 | throws DataException {
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491 | this.open();
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492 | if (filter == null && totalCount != null) { |
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493 | return totalCount.longValue();
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494 | } |
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495 | final String sql = compoundCountSelect(filter); |
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496 | |||
497 | long count = ((Long) getResource().execute(new ResourceAction() { |
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498 | public Object run() throws Exception { |
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499 | long count = 0; |
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500 | ResultSet rs = createNewResultSet(sql, null, 1); |
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501 | try {
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502 | if (rs.next()) {
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503 | count = rs.getLong(1);
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504 | } |
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505 | } catch (SQLException e) { |
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506 | throw new JDBCSQLException(e); |
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507 | } finally {
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508 | closeResulset(rs); |
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509 | } |
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510 | return Long.valueOf(count); |
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511 | } |
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512 | })).longValue(); |
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513 | |||
514 | if (filter == null) { |
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515 | totalCount = new Long(count); |
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516 | } |
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517 | return count;
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518 | } |
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519 | |||
520 | public void close() throws CloseException { |
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521 | helper.close(); |
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522 | } |
||
523 | |||
524 | public void open() throws OpenException { |
||
525 | helper.open(); |
||
526 | } |
||
527 | |||
528 | @Override
|
||
529 | protected FeatureProvider internalGetFeatureProviderByReference(
|
||
530 | FeatureReferenceProviderServices reference) throws DataException {
|
||
531 | return internalGetFeatureProviderByReference(reference,
|
||
532 | getFeatureStore() |
||
533 | .getDefaultFeatureType()); |
||
534 | } |
||
535 | |||
536 | 40916 | jjdelcerro | /**
|
537 | * Return "is null" expression for current provider<br/>
|
||
538 | */
|
||
539 | protected String getIsNullExpression() { |
||
540 | return "is null"; |
||
541 | } |
||
542 | |||
543 | 40435 | jjdelcerro | @Override
|
544 | protected FeatureProvider internalGetFeatureProviderByReference(
|
||
545 | FeatureReferenceProviderServices reference, |
||
546 | FeatureType featureType) |
||
547 | throws DataException {
|
||
548 | StringBuilder filter = new StringBuilder(); |
||
549 | FeatureAttributeDescriptor[] pk =
|
||
550 | getFeatureStore().getFeatureType(featureType.getId()) |
||
551 | .getPrimaryKey(); |
||
552 | |||
553 | List<Object> values = new ArrayList<Object>(); |
||
554 | |||
555 | int i;
|
||
556 | 40916 | jjdelcerro | Object value;
|
557 | for (i = 0; i < pk.length; i++) { |
||
558 | value = reference.getKeyValue(pk[i].getName()); |
||
559 | filter.append(helper.getSqlFieldName(pk[i])); |
||
560 | if (value == null) { |
||
561 | filter.append(" ");
|
||
562 | filter.append(getIsNullExpression()); |
||
563 | filter.append("");
|
||
564 | } else {
|
||
565 | values.add(helper.dalValueToJDBC(pk[i], value)); |
||
566 | filter.append(" = ? ");
|
||
567 | } |
||
568 | if (i < pk.length -1) { |
||
569 | filter.append(" AND ");
|
||
570 | } |
||
571 | 40435 | jjdelcerro | } |
572 | String sql = compoundSelect(featureType, filter.toString(), null, 1, 0); |
||
573 | |||
574 | FeatureProvider data; |
||
575 | int rsId = createResultSet(sql, values.toArray(), 1); |
||
576 | try {
|
||
577 | if (!resulsetNext(rsId)) {
|
||
578 | throw new RuntimeException("Reference Not found"); |
||
579 | } |
||
580 | data = createFeatureProvider(featureType); |
||
581 | loadFeatureProvider(data, rsId); |
||
582 | } finally {
|
||
583 | closeResulset(rsId); |
||
584 | } |
||
585 | |||
586 | return data;
|
||
587 | } |
||
588 | |||
589 | public int getOIDType() { |
||
590 | return DataTypes.UNKNOWN;
|
||
591 | } |
||
592 | |||
593 | protected void initFeatureType() throws InitializeException { |
||
594 | |||
595 | EditableFeatureType edFType = null;
|
||
596 | try {
|
||
597 | 40887 | jjdelcerro | edFType = this.getStoreServices().createFeatureType(getName());
|
598 | 40435 | jjdelcerro | |
599 | helper.loadFeatureType(edFType, getJDBCParameters()); |
||
600 | |||
601 | } catch (DataException e) {
|
||
602 | throw new InitializeException(this.getProviderName(), e); |
||
603 | } |
||
604 | |||
605 | FeatureType defaultType = edFType.getNotEditableCopy(); |
||
606 | List<FeatureType> types = Collections.singletonList(defaultType); |
||
607 | this.getStoreServices().setFeatureTypes(types, defaultType);
|
||
608 | } |
||
609 | |||
610 | protected ResultSet createNewResultSet(final String sql, |
||
611 | final Object[] values, final int fetchSize) |
||
612 | throws DataException {
|
||
613 | this.open();
|
||
614 | return (ResultSet) getResource().execute(new ResourceAction() { |
||
615 | public Object run() throws Exception { |
||
616 | Connection conn = null; |
||
617 | PreparedStatement st = null; |
||
618 | ResultSet rs = null; |
||
619 | try {
|
||
620 | |||
621 | conn = helper.getConnection(); |
||
622 | conn.setAutoCommit(false);
|
||
623 | st = conn.prepareStatement(sql); |
||
624 | |||
625 | if (values != null) { |
||
626 | Object value;
|
||
627 | for (int i = 0; i < values.length; i++) { |
||
628 | value = values[i]; |
||
629 | if (value instanceof Geometry) { |
||
630 | byte[] bytes; |
||
631 | try {
|
||
632 | bytes = ((Geometry) value).convertToWKB(); |
||
633 | } catch (BaseException e) {
|
||
634 | throw new InvalidParameterException(); |
||
635 | } |
||
636 | st.setBytes(i + 1, bytes);
|
||
637 | } |
||
638 | st.setObject(i + 1, value);
|
||
639 | } |
||
640 | } |
||
641 | |||
642 | if (fetchSize > 0) { |
||
643 | st.setFetchSize(fetchSize); |
||
644 | } |
||
645 | rs = st.executeQuery(); |
||
646 | if (fetchSize > 0) { |
||
647 | rs.setFetchSize(fetchSize); |
||
648 | } |
||
649 | return rs;
|
||
650 | } catch (SQLException e) { |
||
651 | try {
|
||
652 | rs.close(); |
||
653 | } catch (Exception e1) { |
||
654 | } |
||
655 | try {
|
||
656 | st.close(); |
||
657 | } catch (Exception e1) { |
||
658 | } |
||
659 | try {
|
||
660 | conn.close(); |
||
661 | } catch (Exception e1) { |
||
662 | } |
||
663 | throw new JDBCExecutePreparedSQLException(sql,values,e); |
||
664 | } |
||
665 | } |
||
666 | }); |
||
667 | } |
||
668 | |||
669 | protected boolean closeResource(ResourceProvider resource) { |
||
670 | try {
|
||
671 | this.helper.close();
|
||
672 | } catch (CloseException e) {
|
||
673 | logger.error("Exception in close Request", e);
|
||
674 | } |
||
675 | return !this.helper.isOpen(); |
||
676 | } |
||
677 | |||
678 | protected String compoundCountSelect(String filter) { |
||
679 | 40877 | jldominguez | |
680 | 40435 | jjdelcerro | // Select
|
681 | StringBuilder sql = new StringBuilder(); |
||
682 | sql.append("Select count(");
|
||
683 | String[] pkFields = getJDBCParameters().getPkFields(); |
||
684 | if (pkFields != null && pkFields.length == 1) { |
||
685 | sql.append(helper.escapeFieldName(pkFields[0]));
|
||
686 | } else {
|
||
687 | sql.append('*');
|
||
688 | |||
689 | } |
||
690 | sql.append(") ");
|
||
691 | |||
692 | sql.append("from ");
|
||
693 | 40877 | jldominguez | if (this.directSQLMode) { |
694 | sql.append("(");
|
||
695 | sql.append(getJDBCParameters().getSQL()); |
||
696 | sql.append(") as _subquery_alias_ ");
|
||
697 | } else {
|
||
698 | sql.append(getJDBCParameters().tableID()); |
||
699 | } |
||
700 | 40435 | jjdelcerro | sql.append(' ');
|
701 | |||
702 | appendWhere(sql, filter); |
||
703 | |||
704 | return sql.toString();
|
||
705 | } |
||
706 | |||
707 | protected void appendWhere(StringBuilder sql, String filter) { |
||
708 | filter = fixFilter(filter); |
||
709 | String initialFilter = getJDBCParameters().getBaseFilter();
|
||
710 | if ((initialFilter != null && initialFilter.length() != 0) |
||
711 | || (filter != null && filter.length() != 0)) { |
||
712 | sql.append("where (");
|
||
713 | |||
714 | if (initialFilter != null && initialFilter.length() != 0 |
||
715 | && filter != null && filter.length() != 0) { |
||
716 | // initialFilter + filter
|
||
717 | sql.append('(');
|
||
718 | sql.append(initialFilter); |
||
719 | sql.append(") and (");
|
||
720 | sql.append(filter); |
||
721 | sql.append(')');
|
||
722 | } else if (initialFilter != null && initialFilter.length() != 0) { |
||
723 | // initialFilter only
|
||
724 | sql.append(initialFilter); |
||
725 | } else {
|
||
726 | // filter only
|
||
727 | sql.append(filter); |
||
728 | } |
||
729 | sql.append(") ");
|
||
730 | } |
||
731 | } |
||
732 | |||
733 | public void closeDone() throws DataException { |
||
734 | // Do nothing
|
||
735 | } |
||
736 | |||
737 | public void opendDone() throws DataException { |
||
738 | // Nothing to do
|
||
739 | } |
||
740 | |||
741 | public Envelope getEnvelope() throws DataException { |
||
742 | this.open();
|
||
743 | String defaultGeometryAttributeName;
|
||
744 | defaultGeometryAttributeName = this.getFeatureStore()
|
||
745 | .getDefaultFeatureType() |
||
746 | .getDefaultGeometryAttributeName(); |
||
747 | if( defaultGeometryAttributeName != null ) { |
||
748 | return this.helper.getFullEnvelopeOfField( |
||
749 | this.getJDBCParameters(),
|
||
750 | defaultGeometryAttributeName, |
||
751 | this.getJDBCParameters().getWorkingArea()
|
||
752 | ); |
||
753 | } |
||
754 | return null; |
||
755 | } |
||
756 | |||
757 | public void resourceChanged(ResourceProvider resource) { |
||
758 | this.getStoreServices().notifyChange(
|
||
759 | DataStoreNotification.RESOURCE_CHANGED, |
||
760 | resource); |
||
761 | } |
||
762 | |||
763 | public boolean allowAutomaticValues() { |
||
764 | return this.helper.allowAutomaticValues(); |
||
765 | } |
||
766 | |||
767 | public DataServerExplorer getExplorer() throws ReadException { |
||
768 | DataManager manager = DALLocator.getDataManager(); |
||
769 | JDBCServerExplorerParameters exParams; |
||
770 | JDBCStoreParameters params = getJDBCParameters(); |
||
771 | try {
|
||
772 | exParams = (JDBCServerExplorerParameters) manager |
||
773 | .createServerExplorerParameters(JDBCServerExplorer.NAME); |
||
774 | exParams.setHost(params.getHost()); |
||
775 | exParams.setPort(params.getPort()); |
||
776 | exParams.setDBName(params.getDBName()); |
||
777 | exParams.setUser(params.getUser()); |
||
778 | exParams.setPassword(params.getPassword()); |
||
779 | exParams.setUrl(params.getUrl()); |
||
780 | exParams.setCatalog(params.getCatalog()); |
||
781 | exParams.setSchema(params.getSchema()); |
||
782 | exParams.setJDBCDriverClassName(params.getJDBCDriverClassName()); |
||
783 | |||
784 | return manager.openServerExplorer(JDBCServerExplorer.NAME,exParams);
|
||
785 | } catch (DataException e) {
|
||
786 | throw new ReadException(this.getProviderName(), e); |
||
787 | } catch (ValidateDataParametersException e) {
|
||
788 | throw new ReadException(this.getProviderName(), e); |
||
789 | } |
||
790 | } |
||
791 | |||
792 | @Override
|
||
793 | protected void doDispose() throws BaseException { |
||
794 | this.close();
|
||
795 | resulsetList = null;
|
||
796 | this.helper.dispose();
|
||
797 | super.doDispose();
|
||
798 | } |
||
799 | |||
800 | public Object createNewOID() { |
||
801 | return null; |
||
802 | } |
||
803 | |||
804 | public String compoundSelect(FeatureType type, String filter, String order, |
||
805 | long limit, long offset) throws DataException { |
||
806 | StringBuilder sql = new StringBuilder(); |
||
807 | JDBCStoreParameters params = getJDBCParameters(); |
||
808 | FeatureAttributeDescriptor[] fields = type
|
||
809 | .getAttributeDescriptors(); |
||
810 | |||
811 | // Select
|
||
812 | sql.append("Select ");
|
||
813 | for (int i = 0; i < fields.length - 1; i++) { |
||
814 | sql.append(helper.getSqlFieldName(fields[i])); |
||
815 | sql.append(", ");
|
||
816 | } |
||
817 | sql.append(helper.getSqlFieldName(fields[fields.length - 1]));
|
||
818 | sql.append(' ');
|
||
819 | |||
820 | FeatureAttributeDescriptor[] pkFields = getStoreServices()
|
||
821 | .getProviderFeatureType(type.getId()).getPrimaryKey(); |
||
822 | |||
823 | if (pkFields != null && pkFields.length > 0) { |
||
824 | // checks for pk fields are in select
|
||
825 | boolean toAdd;
|
||
826 | for (int i = 0; i < pkFields.length; i++) { |
||
827 | toAdd = true;
|
||
828 | for (int j = 0; j < fields.length; j++) { |
||
829 | if (pkFields[i].getName().equals(fields[j].getName())) {
|
||
830 | toAdd = false;
|
||
831 | break;
|
||
832 | } |
||
833 | } |
||
834 | 40916 | jjdelcerro | if (toAdd) {
|
835 | sql.append(", ");
|
||
836 | sql.append(helper.getSqlFieldName(pkFields[i])); |
||
837 | } |
||
838 | 40435 | jjdelcerro | } |
839 | sql.append(' ');
|
||
840 | } |
||
841 | |||
842 | // table
|
||
843 | sql.append("from ");
|
||
844 | 40948 | jldominguez | if (directSQLMode) {
|
845 | sql.append(" (");
|
||
846 | sql.append(params.getSQL()); |
||
847 | sql.append(") as _subquery_alias_ ");
|
||
848 | } else {
|
||
849 | sql.append(params.tableID()); |
||
850 | } |
||
851 | 40435 | jjdelcerro | sql.append(' ');
|
852 | |||
853 | // Where
|
||
854 | appendWhere(sql, filter); |
||
855 | |||
856 | // Order
|
||
857 | if ((params.getBaseOrder() != null && params.getBaseOrder() |
||
858 | .length() != 0)
|
||
859 | || (order != null && order.length() != 0)) { |
||
860 | sql.append("order by ");
|
||
861 | |||
862 | if (order != null && order.length() != 0) { |
||
863 | // order
|
||
864 | sql.append(order); |
||
865 | } else {
|
||
866 | // initial order
|
||
867 | sql.append(params.getBaseOrder()); |
||
868 | } |
||
869 | sql.append(' ');
|
||
870 | } |
||
871 | // limit offset
|
||
872 | if (limit > 0 || offset > 0) { |
||
873 | sql.append(helper.compoundLimitAndOffset(limit,offset)); |
||
874 | } |
||
875 | return sql.toString();
|
||
876 | } |
||
877 | |||
878 | public long getFeatureCount() throws DataException { |
||
879 | return getCount(null); |
||
880 | } |
||
881 | |||
882 | public String getProviderName() { |
||
883 | return NAME;
|
||
884 | } |
||
885 | |||
886 | public boolean hasGeometrySupport() { |
||
887 | return false; |
||
888 | } |
||
889 | |||
890 | public FeatureSetProvider createSet(FeatureQuery query,
|
||
891 | FeatureType featureType) throws DataException {
|
||
892 | |||
893 | return new JDBCSetProvider(this, query, featureType); |
||
894 | } |
||
895 | |||
896 | public Object getSourceId() { |
||
897 | return this.getJDBCParameters().getSourceId(); |
||
898 | } |
||
899 | |||
900 | public String getName() { |
||
901 | return this.getJDBCParameters().tableID(); |
||
902 | } |
||
903 | |||
904 | public String getFullName() { |
||
905 | return this.getJDBCParameters().getHost()+":"+this.getJDBCParameters().getDBName()+":"+this.getJDBCParameters().tableID(); |
||
906 | } |
||
907 | |||
908 | |||
909 | public ResourceProvider getResource() {
|
||
910 | return getHelper().getResource();
|
||
911 | } |
||
912 | |||
913 | protected boolean isDirectSQLMode(){ |
||
914 | return directSQLMode;
|
||
915 | } |
||
916 | 40596 | jjdelcerro | } |