svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.file / org.gvsig.fmap.dal.file.dbf / src / main / java / org / gvsig / fmap / dal / store / dbf / DBFStoreProvider.java @ 40559
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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.dbf; |
25 | |||
26 | import java.io.File; |
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27 | import java.io.IOException; |
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28 | import java.nio.charset.Charset; |
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29 | import java.text.DateFormat; |
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30 | import java.text.ParseException; |
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31 | import java.util.ArrayList; |
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32 | import java.util.Date; |
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33 | import java.util.Iterator; |
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34 | import java.util.List; |
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35 | import java.util.Locale; |
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36 | |||
37 | import org.apache.commons.io.FileUtils; |
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38 | import org.slf4j.Logger; |
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39 | import org.slf4j.LoggerFactory; |
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40 | |||
41 | import org.gvsig.fmap.dal.DALLocator; |
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42 | import org.gvsig.fmap.dal.DataManager; |
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43 | import org.gvsig.fmap.dal.DataServerExplorer; |
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44 | import org.gvsig.fmap.dal.DataStoreNotification; |
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45 | import org.gvsig.fmap.dal.DataTypes; |
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46 | import org.gvsig.fmap.dal.FileHelper; |
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47 | import org.gvsig.fmap.dal.exception.CloseException; |
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48 | import org.gvsig.fmap.dal.exception.DataException; |
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49 | import org.gvsig.fmap.dal.exception.FileNotFoundException; |
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50 | import org.gvsig.fmap.dal.exception.InitializeException; |
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51 | import org.gvsig.fmap.dal.exception.OpenException; |
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52 | import org.gvsig.fmap.dal.exception.ReadException; |
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53 | import org.gvsig.fmap.dal.exception.UnsupportedVersionException; |
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54 | import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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55 | import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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56 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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57 | import org.gvsig.fmap.dal.feature.Feature; |
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58 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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59 | import org.gvsig.fmap.dal.feature.FeatureQuery; |
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60 | import org.gvsig.fmap.dal.feature.FeatureSet; |
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61 | import org.gvsig.fmap.dal.feature.FeatureStore; |
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62 | import org.gvsig.fmap.dal.feature.FeatureType; |
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63 | import org.gvsig.fmap.dal.feature.exception.PerformEditingException; |
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64 | import org.gvsig.fmap.dal.feature.exception.UnknownDataTypeException; |
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65 | import org.gvsig.fmap.dal.feature.spi.AbstractFeatureStoreProvider; |
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66 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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67 | import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices; |
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68 | import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
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69 | import org.gvsig.fmap.dal.resource.ResourceAction; |
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70 | import org.gvsig.fmap.dal.resource.exception.AccessResourceException; |
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71 | import org.gvsig.fmap.dal.resource.exception.ResourceException; |
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72 | import org.gvsig.fmap.dal.resource.exception.ResourceExecuteException; |
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73 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyChangesException; |
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74 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyCloseException; |
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75 | import org.gvsig.fmap.dal.resource.exception.ResourceNotifyOpenException; |
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76 | import org.gvsig.fmap.dal.resource.file.FileResource; |
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77 | import org.gvsig.fmap.dal.resource.spi.ResourceConsumer; |
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78 | import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
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79 | import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorer; |
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80 | import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorerParameters; |
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81 | import org.gvsig.fmap.dal.spi.DataStoreProviderServices; |
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82 | import org.gvsig.fmap.dal.store.dbf.utils.DbaseFile; |
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83 | import org.gvsig.metadata.MetadataLocator; |
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84 | import org.gvsig.metadata.MetadataManager; |
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85 | import org.gvsig.metadata.exceptions.MetadataException; |
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86 | import org.gvsig.tools.dispose.DisposableIterator; |
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87 | import org.gvsig.tools.dynobject.DynObject; |
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88 | import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException; |
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89 | import org.gvsig.tools.exception.BaseException; |
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90 | |||
91 | public class DBFStoreProvider extends AbstractFeatureStoreProvider implements |
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92 | ResourceConsumer { |
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93 | |||
94 | private static final Logger LOG = LoggerFactory.getLogger(DBFStoreProvider.class); |
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95 | |||
96 | public static String NAME = "DBF"; |
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97 | public static String DESCRIPTION = "DBF file"; |
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98 | private static final Locale ukLocale = new Locale("en", "UK"); |
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99 | |||
100 | public static final String METADATA_DEFINITION_NAME = NAME; |
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101 | private static final String METADATA_ENCODING = "Encoding"; |
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102 | private static final String METADATA_CODEPAGE = "CodePage"; |
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103 | |||
104 | private DbaseFile dbfFile = null; |
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105 | private ResourceProvider dbfResource;
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106 | private long counterNewsOIDs = -1; |
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107 | private DBFFeatureWriter writer;
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108 | |||
109 | private static long lastLogTime = 0; |
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110 | |||
111 | |||
112 | protected static void registerMetadataDefinition() throws MetadataException { |
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113 | MetadataManager manager = MetadataLocator.getMetadataManager(); |
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114 | if( manager.getDefinition(METADATA_DEFINITION_NAME)==null ) { |
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115 | manager.addDefinition( |
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116 | METADATA_DEFINITION_NAME, |
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117 | DBFStoreParameters.class.getResourceAsStream("DBFStoreMetadata.xml"),
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118 | DBFStoreParameters.class.getClassLoader() |
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119 | ); |
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120 | } |
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121 | } |
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122 | |||
123 | public DBFStoreProvider(DBFStoreParameters params,
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124 | DataStoreProviderServices storeServices) |
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125 | throws InitializeException {
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126 | super(
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127 | params, |
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128 | storeServices, |
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129 | FileHelper.newMetadataContainer(METADATA_DEFINITION_NAME) |
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130 | ); |
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131 | this.init(params, storeServices);
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132 | } |
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133 | |||
134 | protected DBFStoreProvider(DBFStoreParameters params,
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135 | DataStoreProviderServices storeServices, DynObject metadata) |
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136 | throws InitializeException {
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137 | super(params, storeServices, metadata);
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138 | this.init(params, storeServices);
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139 | } |
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140 | |||
141 | protected void init(DBFStoreParameters params, |
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142 | DataStoreProviderServices storeServices) throws InitializeException {
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143 | if( params == null ) { |
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144 | throw new InitializeException( new NullPointerException("params is null") ); |
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145 | } |
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146 | File theFile = getDBFParameters().getDBFFile();
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147 | if( theFile == null ) { |
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148 | throw new InitializeException( new NullPointerException("dbf file is null") ); |
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149 | } |
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150 | initResource(params, storeServices); |
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151 | |||
152 | Charset charset = params.getEncoding();
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153 | this.dbfFile = new DbaseFile(theFile, charset); |
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154 | |||
155 | writer = new DBFFeatureWriter(this.getProviderName()); |
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156 | |||
157 | this.initFeatureType();
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158 | |||
159 | } |
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160 | |||
161 | public Object getDynValue(String name) throws DynFieldNotFoundException { |
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162 | try {
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163 | this.open();
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164 | } catch (OpenException e) {
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165 | throw new RuntimeException(e); |
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166 | } |
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167 | if( METADATA_ENCODING.equalsIgnoreCase(name) ) {
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168 | return this.dbfFile.getOriginalCharset(); |
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169 | } else if( METADATA_CODEPAGE.equalsIgnoreCase(name) ) { |
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170 | return new Byte(this.dbfFile.getCodePage()); |
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171 | } |
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172 | return super.getDynValue(name); |
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173 | } |
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174 | |||
175 | protected void initResource(DBFStoreParameters params, |
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176 | DataStoreProviderServices storeServices) throws InitializeException {
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177 | |||
178 | File theFile = getDBFParameters().getDBFFile();
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179 | dbfResource = |
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180 | this.createResource(FileResource.NAME,
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181 | new Object[] { theFile.getAbsolutePath() }); |
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182 | dbfResource.addConsumer(this);
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183 | } |
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184 | |||
185 | public String getProviderName() { |
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186 | return NAME;
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187 | } |
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188 | |||
189 | protected DBFStoreParameters getDBFParameters() {
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190 | return (DBFStoreParameters) super.getParameters(); |
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191 | } |
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192 | |||
193 | |||
194 | public DataServerExplorer getExplorer() throws ReadException { |
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195 | DataManager manager = DALLocator.getDataManager(); |
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196 | FilesystemServerExplorerParameters params; |
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197 | try {
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198 | params = (FilesystemServerExplorerParameters) manager |
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199 | .createServerExplorerParameters(FilesystemServerExplorer.NAME); |
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200 | params.setRoot(this.getDBFParameters().getDBFFile().getParent());
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201 | return manager.openServerExplorer(FilesystemServerExplorer.NAME,params);
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202 | } catch (DataException e) {
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203 | throw new ReadException(this.getProviderName(), e); |
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204 | } catch (ValidateDataParametersException e) {
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205 | // TODO Auto-generated catch block
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206 | throw new ReadException(this.getProviderName(), e); |
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207 | } |
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208 | } |
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209 | |||
210 | protected FeatureProvider internalGetFeatureProviderByReference(
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211 | FeatureReferenceProviderServices reference, FeatureType featureType) |
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212 | throws DataException {
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213 | return this.getFeatureProviderByIndex( |
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214 | ((Long) reference.getOID()).longValue(), featureType);
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215 | } |
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216 | |||
217 | public void performChanges(Iterator deleteds, Iterator inserteds, |
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218 | Iterator updateds, Iterator originalFeatureTypesUpdated) |
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219 | throws PerformEditingException {
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220 | |||
221 | try {
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222 | final FeatureStore store =
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223 | this.getStoreServices().getFeatureStore();
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224 | getResource().execute(new ResourceAction() {
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225 | |||
226 | public Object run() throws Exception { |
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227 | FeatureSet set = null;
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228 | DisposableIterator iter = null;
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229 | try {
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230 | set = store.getFeatureSet(); |
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231 | DBFStoreParameters tmpParams = |
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232 | (DBFStoreParameters) getDBFParameters().getCopy(); |
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233 | |||
234 | File tmp_file = File.createTempFile( |
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235 | "tmp_" + System.currentTimeMillis(), ".dbf"); |
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236 | tmp_file.deleteOnExit(); |
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237 | |||
238 | tmpParams.setDBFFile(tmp_file); |
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239 | |||
240 | writer.begin(tmpParams, store.getDefaultFeatureType(), |
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241 | set.getSize()); |
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242 | |||
243 | iter = set.fastIterator(); |
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244 | while (iter.hasNext()) {
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245 | Feature feature = (Feature) iter.next(); |
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246 | writer.append(feature); |
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247 | } |
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248 | |||
249 | writer.end(); |
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250 | |||
251 | try {
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252 | close(); |
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253 | } catch (CloseException e1) {
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254 | throw new PerformEditingException(getProviderName(), e1); |
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255 | } |
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256 | getDBFParameters().getDBFFile().delete(); |
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257 | |||
258 | File target_file = getDBFParameters().getDBFFile();
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259 | if (target_file.exists()) {
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260 | target_file.delete(); |
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261 | } |
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262 | tmp_file.renameTo(target_file); |
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263 | |||
264 | if (tmp_file.exists() && !target_file.exists()) {
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265 | // Renaming failed, let's simply copy.
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266 | // We assume we cannot delete it, but we
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267 | // used deleteOnExit and it's
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268 | // temporary, so no problem
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269 | LOG.info("Warning: copying tmp file instead of renaming: "
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270 | + target_file.getName()); |
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271 | FileUtils.copyFile(tmp_file, target_file); |
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272 | } |
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273 | |||
274 | resourcesNotifyChanges(); |
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275 | initFeatureType(); |
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276 | } finally {
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277 | if (set != null) { |
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278 | set.dispose(); |
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279 | } |
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280 | if (iter != null) { |
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281 | iter.dispose(); |
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282 | } |
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283 | } |
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284 | return null; |
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285 | } |
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286 | }); |
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287 | } catch (ResourceExecuteException e) {
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288 | throw new PerformEditingException(this.getProviderName(), e); |
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289 | } |
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290 | |||
291 | this.counterNewsOIDs = -1; |
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292 | } |
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293 | |||
294 | /*
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295 | * ==================================================
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296 | */
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297 | |||
298 | public FeatureProvider createFeatureProvider(FeatureType type) throws DataException { |
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299 | return new DBFFeatureProvider(this, type); |
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300 | } |
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301 | |||
302 | |||
303 | /*
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304 | * ===================================================
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305 | */
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306 | |||
307 | |||
308 | |||
309 | protected void initFeatureType() throws InitializeException { |
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310 | try {
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311 | FeatureType defaultType = |
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312 | this.getTheFeatureType().getNotEditableCopy();
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313 | List types = new ArrayList(1); |
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314 | types.add(defaultType); |
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315 | this.getStoreServices().setFeatureTypes(types, defaultType);
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316 | } catch (OpenException e) {
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317 | throw new InitializeException(getResource().toString(), e); |
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318 | } |
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319 | } |
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320 | |||
321 | protected EditableFeatureType getTheFeatureType()
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322 | throws InitializeException, OpenException {
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323 | try {
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324 | this.open();
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325 | } catch (DataException e) {
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326 | throw new InitializeException(this.getProviderName(), e); |
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327 | } |
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328 | return (EditableFeatureType) getResource().execute(
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329 | new ResourceAction() {
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330 | |||
331 | public Object run() throws Exception { |
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332 | int fieldCount = -1; |
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333 | fieldCount = dbfFile.getFieldCount(); |
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334 | |||
335 | EditableFeatureType fType = |
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336 | getStoreServices().createFeatureType(); |
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337 | |||
338 | fType.setHasOID(true);
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339 | int precision;
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340 | for (int i = 0; i < fieldCount; i++) { |
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341 | char fieldType = dbfFile.getFieldType(i);
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342 | EditableFeatureAttributeDescriptor attr; |
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343 | |||
344 | if (fieldType == 'L') { |
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345 | attr = |
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346 | fType.add(dbfFile.getFieldName(i), |
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347 | DataTypes.BOOLEAN); |
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348 | attr.setDefaultValue(new Boolean(false)); |
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349 | attr.setAllowNull(false);
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350 | |||
351 | } else if ((fieldType == 'F') || (fieldType == 'N')) { |
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352 | precision = dbfFile.getFieldDecimalLength(i); |
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353 | if (precision > 0) { |
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354 | attr = |
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355 | fType.add(dbfFile.getFieldName(i), |
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356 | DataTypes.DOUBLE, |
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357 | dbfFile.getFieldLength(i)); |
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358 | attr.setPrecision(precision); |
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359 | attr.setDefaultValue(new Double(0)); |
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360 | |||
361 | } else {
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362 | int length = dbfFile.getFieldLength(i);
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363 | int type = DataTypes.INT;
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364 | if (length > 9){ |
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365 | type = DataTypes.LONG; |
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366 | } |
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367 | attr = |
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368 | fType.add(dbfFile.getFieldName(i), |
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369 | type, |
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370 | length); |
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371 | attr.setDefaultValue(new Integer(0)); |
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372 | } |
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373 | attr.setAllowNull(false);
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374 | |||
375 | } else if (fieldType == 'C') { |
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376 | attr = |
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377 | fType.add(dbfFile.getFieldName(i), |
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378 | DataTypes.STRING); |
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379 | attr.setSize(dbfFile.getFieldLength(i)); |
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380 | attr.setDefaultValue("");
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381 | |||
382 | |||
383 | attr.setAllowNull(false);
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384 | |||
385 | } else if (fieldType == 'D') { |
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386 | attr = |
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387 | fType.add(dbfFile.getFieldName(i), |
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388 | DataTypes.DATE); |
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389 | /*
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390 | * def value 1-1-1970
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391 | */
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392 | attr.setDefaultValue(new Date(0)); |
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393 | attr.setAllowNull(false);
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394 | } else {
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395 | throw new InitializeException(getProviderName(), |
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396 | new UnknownDataTypeException(
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397 | dbfFile.getFieldName(i), ""
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398 | + fieldType, getProviderName())); |
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399 | } |
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400 | } |
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401 | |||
402 | // FeatureRules rules = fType.getRules();
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403 | // rules.add(new DBFRowValidator());
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404 | return fType;
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405 | } |
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406 | }); |
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407 | } |
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408 | |||
409 | |||
410 | protected void loadValue(FeatureProvider featureProvider, int rowIndex, |
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411 | FeatureAttributeDescriptor descriptor) throws ReadException {
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412 | |||
413 | if (descriptor.getEvaluator() != null) { |
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414 | // Nothing to do
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415 | return;
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416 | } |
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417 | |||
418 | int dbfIndex = this.dbfFile.getFieldIndex(descriptor.getName()); |
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419 | |||
420 | if (dbfIndex < 0) { |
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421 | // Someone asked to load a field
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422 | // which does not exist in the DBF file. This can happen
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423 | // in editing process when a field has been added
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424 | // in the current editing session, so we simply do nothing.
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425 | // The expansion manager is expected to manage those new fields
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426 | // and their values.
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427 | long curr_time = System.currentTimeMillis(); |
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428 | // This ensures not more than one log every 2 seconds
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429 | if (curr_time - lastLogTime > 2000) { |
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430 | LOG.info("Warning: The requested field does not exist in the DBF file. Assumed it's a new field in editing mode.");
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431 | lastLogTime = curr_time; |
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432 | } |
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433 | return;
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434 | } |
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435 | |||
436 | String value = null; |
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437 | try {
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438 | value = this.dbfFile.getStringFieldValue(rowIndex, dbfIndex);
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439 | } catch (DataException e) {
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440 | throw new ReadException(this.getProviderName(), e); |
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441 | } |
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442 | value = value.trim(); |
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443 | int fieldType = descriptor.getType();
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444 | switch (fieldType) {
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445 | case DataTypes.STRING:
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446 | featureProvider.set(descriptor.getIndex(), value); |
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447 | break;
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448 | |||
449 | case DataTypes.DOUBLE:
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450 | try {
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451 | featureProvider.set(descriptor.getIndex(), new Double(value)); |
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452 | } catch (NumberFormatException e) { |
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453 | featureProvider.set(descriptor.getIndex(), null);
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454 | } |
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455 | break;
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456 | |||
457 | case DataTypes.INT:
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458 | try {
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459 | featureProvider.set(descriptor.getIndex(), new Integer(value)); |
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460 | } catch (NumberFormatException e) { |
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461 | featureProvider.set(descriptor.getIndex(), null);
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462 | } |
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463 | break;
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464 | |||
465 | case DataTypes.FLOAT:
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466 | try {
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467 | featureProvider.set(descriptor.getIndex(), new Float(value)); |
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468 | } catch (NumberFormatException e) { |
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469 | featureProvider.set(descriptor.getIndex(), null);
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470 | } |
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471 | break;
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472 | |||
473 | case DataTypes.LONG:
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474 | try {
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475 | featureProvider.set(descriptor.getIndex(), new Long(value)); |
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476 | } catch (NumberFormatException e) { |
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477 | featureProvider.set(descriptor.getIndex(), null);
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478 | } |
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479 | break;
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480 | |||
481 | case DataTypes.BOOLEAN:
|
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482 | if (value.equalsIgnoreCase("T")){ |
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483 | featureProvider.set(descriptor.getIndex(), Boolean.TRUE);
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484 | } else {
|
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485 | featureProvider.set(descriptor.getIndex(), Boolean.FALSE);
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486 | |||
487 | } |
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488 | break;
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489 | |||
490 | case DataTypes.BYTE:
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491 | try {
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492 | featureProvider.set(descriptor.getIndex(), new Byte(value)); |
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493 | } catch (NumberFormatException e) { |
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494 | featureProvider.set(descriptor.getIndex(), null);
|
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495 | } |
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496 | break;
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||
497 | |||
498 | case DataTypes.DATE:
|
||
499 | if (value.equals("")){ |
||
500 | value=null;
|
||
501 | return;
|
||
502 | } |
||
503 | String year = value.substring(0, 4); |
||
504 | String month = value.substring(4, 6); |
||
505 | String day = value.substring(6, 8); |
||
506 | DateFormat df;
|
||
507 | if (descriptor.getDateFormat() == null){ |
||
508 | df = DateFormat.getDateInstance(DateFormat.SHORT, |
||
509 | ukLocale); |
||
510 | } else{
|
||
511 | df = descriptor.getDateFormat(); |
||
512 | } |
||
513 | /*
|
||
514 | * Calendar c = Calendar.getInstance(); c.clear();
|
||
515 | * c.set(Integer.parseInt(year), Integer.parseInt(month),
|
||
516 | * Integer.parseInt(day)); c.set(Calendar.MILLISECOND, 0);
|
||
517 | */
|
||
518 | String strAux = month + "/" + day + "/" + year; |
||
519 | Date dat = null; |
||
520 | try {
|
||
521 | dat = df.parse(strAux); |
||
522 | } catch (ParseException e) { |
||
523 | throw new ReadException(this.getProviderName(), e); |
||
524 | } |
||
525 | featureProvider.set(descriptor.getIndex(), dat); |
||
526 | break;
|
||
527 | |||
528 | |||
529 | default:
|
||
530 | featureProvider |
||
531 | .set(descriptor.getIndex(), descriptor.getDefaultValue()); |
||
532 | break;
|
||
533 | } |
||
534 | } |
||
535 | |||
536 | |||
537 | /***
|
||
538 | * NOT supported in Alter Mode
|
||
539 | *
|
||
540 | * @param index
|
||
541 | * @return
|
||
542 | * @throws ReadException
|
||
543 | */
|
||
544 | protected FeatureProvider getFeatureProviderByIndex(long index) throws DataException { |
||
545 | return this |
||
546 | .getFeatureProviderByIndex(index, this.getStoreServices()
|
||
547 | .getDefaultFeatureType()); |
||
548 | } |
||
549 | |||
550 | public long getFeatureCount() throws ReadException, OpenException, |
||
551 | ResourceNotifyChangesException { |
||
552 | this.open();
|
||
553 | return ((Long) getResource().execute(new ResourceAction() { |
||
554 | public Object run() throws Exception { |
||
555 | return Long.valueOf(dbfFile.getRecordCount()); |
||
556 | } |
||
557 | })).longValue(); |
||
558 | } |
||
559 | |||
560 | public FeatureSetProvider createSet(FeatureQuery query, FeatureType featureType)
|
||
561 | throws DataException {
|
||
562 | return new DBFSetProvider(this, query, featureType); |
||
563 | } |
||
564 | |||
565 | public boolean canCreate() { |
||
566 | return true; |
||
567 | } |
||
568 | |||
569 | public boolean canWriteGeometry(int geometryType, int geometrySubType) throws DataException { |
||
570 | return false; |
||
571 | } |
||
572 | |||
573 | public void open() throws OpenException { |
||
574 | if (this.dbfFile.isOpen()) { |
||
575 | return;
|
||
576 | } |
||
577 | try {
|
||
578 | getResource().execute(new ResourceAction() {
|
||
579 | public Object run() throws Exception { |
||
580 | openFile(); |
||
581 | resourcesOpen(); |
||
582 | return null; |
||
583 | } |
||
584 | }); |
||
585 | |||
586 | } catch (ResourceExecuteException e) {
|
||
587 | throw new OpenException(this.getProviderName(), e); |
||
588 | } |
||
589 | } |
||
590 | |||
591 | protected void openFile() throws FileNotFoundException, |
||
592 | UnsupportedVersionException, IOException, DataException {
|
||
593 | this.dbfFile.open();
|
||
594 | } |
||
595 | |||
596 | public void close() throws CloseException { |
||
597 | if (dbfFile == null || !this.dbfFile.isOpen()) { |
||
598 | return;
|
||
599 | } |
||
600 | super.close();
|
||
601 | //Cerrar recurso
|
||
602 | try {
|
||
603 | getResource().execute(new ResourceAction() {
|
||
604 | public Object run() throws Exception { |
||
605 | closeFile(); |
||
606 | resourcesNotifyClose(); |
||
607 | return null; |
||
608 | } |
||
609 | }); |
||
610 | } catch (ResourceExecuteException e) {
|
||
611 | throw new CloseException(this.getProviderName(), e); |
||
612 | } |
||
613 | } |
||
614 | |||
615 | protected void closeFile() throws CloseException { |
||
616 | this.dbfFile.close();
|
||
617 | } |
||
618 | |||
619 | @Override
|
||
620 | protected void doDispose() throws BaseException { |
||
621 | this.close();
|
||
622 | dbfFile = null;
|
||
623 | disposeResource(); |
||
624 | super.doDispose();
|
||
625 | } |
||
626 | |||
627 | protected void disposeResource() { |
||
628 | this.dbfResource.removeConsumer(this); |
||
629 | dbfResource = null;
|
||
630 | } |
||
631 | |||
632 | public boolean closeResourceRequested(ResourceProvider resource) { |
||
633 | try {
|
||
634 | this.close();
|
||
635 | } catch (CloseException e) {
|
||
636 | return false; |
||
637 | } |
||
638 | return true; |
||
639 | } |
||
640 | |||
641 | public boolean allowWrite() { |
||
642 | File file;
|
||
643 | try {
|
||
644 | file = ((File) this.dbfResource.get()); |
||
645 | } catch (AccessResourceException e) {
|
||
646 | return false; |
||
647 | } |
||
648 | return file.canWrite();
|
||
649 | } |
||
650 | |||
651 | public void refresh() throws OpenException { |
||
652 | try {
|
||
653 | this.close();
|
||
654 | } catch (CloseException e) {
|
||
655 | throw new OpenException(this.getProviderName(), e); |
||
656 | } |
||
657 | this.open();
|
||
658 | try {
|
||
659 | this.initFeatureType();
|
||
660 | } catch (InitializeException e) {
|
||
661 | throw new OpenException(this.getProviderName(), e); |
||
662 | } |
||
663 | } |
||
664 | |||
665 | /**
|
||
666 | *
|
||
667 | * @param index
|
||
668 | * @param featureType
|
||
669 | * @return
|
||
670 | * @throws ReadException
|
||
671 | */
|
||
672 | protected FeatureProvider getFeatureProviderByIndex(long index, |
||
673 | FeatureType featureType) throws DataException {
|
||
674 | FeatureProvider featureProvider = this.createFeatureProvider(featureType);
|
||
675 | featureProvider.setOID(new Long(index)); |
||
676 | return featureProvider;
|
||
677 | } |
||
678 | |||
679 | protected void initFeatureProviderByIndex(FeatureProvider featureProvider, |
||
680 | long index, FeatureType featureType) throws DataException { |
||
681 | featureProvider.setOID(new Long(index)); |
||
682 | } |
||
683 | |||
684 | /**
|
||
685 | *
|
||
686 | * @param featureProvider
|
||
687 | * @throws DataException
|
||
688 | */
|
||
689 | protected void loadFeatureProviderByIndex(FeatureProvider featureProvider) |
||
690 | throws DataException {
|
||
691 | |||
692 | long index = ((Long) featureProvider.getOID()).longValue(); |
||
693 | int rec_count = this.dbfFile.getRecordCount(); |
||
694 | |||
695 | if (index >= rec_count) {
|
||
696 | |||
697 | ReadException rex = new ReadException(NAME,
|
||
698 | new ArrayIndexOutOfBoundsException( |
||
699 | "Index of requested feature (" +
|
||
700 | index + ") is >= record count (" + rec_count + ")")); |
||
701 | |||
702 | LOG.info("Error while loading feature. ", rex);
|
||
703 | throw rex;
|
||
704 | } |
||
705 | |||
706 | Iterator iterator = featureProvider.getType().iterator();
|
||
707 | while (iterator.hasNext()) {
|
||
708 | FeatureAttributeDescriptor descriptor = |
||
709 | (FeatureAttributeDescriptor) iterator.next(); |
||
710 | this.loadValue(featureProvider, (int) index, descriptor); |
||
711 | } |
||
712 | } |
||
713 | |||
714 | public int getOIDType() { |
||
715 | return DataTypes.LONG;
|
||
716 | } |
||
717 | |||
718 | public Object createNewOID() { |
||
719 | if (this.counterNewsOIDs < 0) { |
||
720 | try {
|
||
721 | this.counterNewsOIDs = this.getFeatureCount(); |
||
722 | } catch (DataException e) {
|
||
723 | e.printStackTrace(); |
||
724 | } |
||
725 | |||
726 | }else{
|
||
727 | this.counterNewsOIDs++;
|
||
728 | } |
||
729 | return new Long(counterNewsOIDs); |
||
730 | } |
||
731 | |||
732 | public boolean supportsAppendMode() { |
||
733 | return true; |
||
734 | } |
||
735 | |||
736 | |||
737 | public void append(final FeatureProvider featureProvider) |
||
738 | throws DataException {
|
||
739 | getResource().execute(new ResourceAction() {
|
||
740 | public Object run() throws Exception { |
||
741 | writer.append(getStoreServices().createFeature(featureProvider)); |
||
742 | return null; |
||
743 | } |
||
744 | }); |
||
745 | } |
||
746 | |||
747 | public void beginAppend() throws DataException { |
||
748 | this.close();
|
||
749 | getResource().execute(new ResourceAction() {
|
||
750 | public Object run() throws Exception { |
||
751 | writer.begin(getDBFParameters(), |
||
752 | getStoreServices().getDefaultFeatureType(), |
||
753 | getStoreServices().getFeatureStore().getFeatureCount()); |
||
754 | return null; |
||
755 | } |
||
756 | }); |
||
757 | } |
||
758 | |||
759 | public void endAppend() throws DataException { |
||
760 | getResource().execute(new ResourceAction() {
|
||
761 | public Object run() throws Exception { |
||
762 | writer.end(); |
||
763 | resourcesNotifyChanges(); |
||
764 | counterNewsOIDs = -1;
|
||
765 | return null; |
||
766 | } |
||
767 | }); |
||
768 | } |
||
769 | |||
770 | /*
|
||
771 | * (non-Javadoc)
|
||
772 | *
|
||
773 | * @see
|
||
774 | * org.gvsig.fmap.dal.resource.spi.ResourceConsumer#resourceChanged(org.
|
||
775 | * gvsig.fmap.dal.resource.spi.ResourceProvider)
|
||
776 | */
|
||
777 | public void resourceChanged(ResourceProvider resource) { |
||
778 | this.getStoreServices().notifyChange(
|
||
779 | DataStoreNotification.RESOURCE_CHANGED, |
||
780 | resource); |
||
781 | } |
||
782 | |||
783 | /**
|
||
784 | *
|
||
785 | * @throws ResourceNotifyChangesException
|
||
786 | */
|
||
787 | protected void resourcesNotifyChanges() |
||
788 | throws ResourceNotifyChangesException {
|
||
789 | this.dbfResource.notifyChanges();
|
||
790 | } |
||
791 | |||
792 | /**
|
||
793 | * @throws ResourceNotifyCloseException
|
||
794 | *
|
||
795 | */
|
||
796 | protected void resourcesNotifyClose() throws ResourceNotifyCloseException { |
||
797 | this.dbfResource.notifyClose();
|
||
798 | } |
||
799 | |||
800 | /**
|
||
801 | * @throws ResourceNotifyOpenException
|
||
802 | *
|
||
803 | */
|
||
804 | protected void resourcesOpen() throws ResourceNotifyOpenException { |
||
805 | this.dbfResource.notifyOpen();
|
||
806 | } |
||
807 | |||
808 | public Object getSourceId() { |
||
809 | return this.getDBFParameters().getFile(); |
||
810 | } |
||
811 | |||
812 | public String getName() { |
||
813 | String name = this.getDBFParameters().getFile().getName(); |
||
814 | int n = name.lastIndexOf("."); |
||
815 | if( n<1 ) { |
||
816 | return name;
|
||
817 | } |
||
818 | return name.substring(0, n); |
||
819 | } |
||
820 | |||
821 | public String getFullName() { |
||
822 | return this.getDBFParameters().getFile().getAbsolutePath(); |
||
823 | } |
||
824 | |||
825 | protected void resourceCloseRequest() throws ResourceException { |
||
826 | this.dbfResource.closeRequest();
|
||
827 | } |
||
828 | |||
829 | public ResourceProvider getResource() {
|
||
830 | return dbfResource;
|
||
831 | } |
||
832 | } |