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 / DBFFilesystemServerProvider.java @ 40435
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1 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.store.dbf; |
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2 | |||
3 | import java.io.File; |
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4 | import java.io.IOException; |
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5 | |||
6 | import org.gvsig.fmap.dal.DALLocator; |
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7 | import org.gvsig.fmap.dal.DataManager; |
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8 | import org.gvsig.fmap.dal.DataServerExplorer; |
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9 | import org.gvsig.fmap.dal.DataStoreParameters; |
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10 | import org.gvsig.fmap.dal.NewDataStoreParameters; |
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11 | import org.gvsig.fmap.dal.exception.CreateException; |
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12 | import org.gvsig.fmap.dal.exception.DataException; |
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13 | import org.gvsig.fmap.dal.exception.FileNotFoundException; |
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14 | import org.gvsig.fmap.dal.exception.InitializeException; |
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15 | import org.gvsig.fmap.dal.exception.RemoveException; |
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16 | import org.gvsig.fmap.dal.feature.NewFeatureStoreParameters; |
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17 | import org.gvsig.fmap.dal.resource.ResourceAction; |
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18 | import org.gvsig.fmap.dal.resource.exception.ResourceExecuteException; |
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19 | import org.gvsig.fmap.dal.resource.file.FileResource; |
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20 | import org.gvsig.fmap.dal.resource.spi.ResourceConsumer; |
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21 | import org.gvsig.fmap.dal.resource.spi.ResourceProvider; |
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22 | import org.gvsig.fmap.dal.serverexplorer.filesystem.AbsolutePathRequiredException; |
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23 | import org.gvsig.fmap.dal.serverexplorer.filesystem.impl.AbstractFilesystemServerExplorerProvider; |
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24 | import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProvider; |
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25 | import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProviderServices; |
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26 | |||
27 | public class DBFFilesystemServerProvider extends AbstractFilesystemServerExplorerProvider |
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28 | implements FilesystemServerExplorerProvider, ResourceConsumer {
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29 | |||
30 | protected FilesystemServerExplorerProviderServices serverExplorer;
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31 | |||
32 | public String getDataStoreProviderName() { |
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33 | return DBFStoreProvider.NAME;
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34 | } |
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35 | |||
36 | public int getMode() { |
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37 | return DataServerExplorer.MODE_FEATURE;
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38 | } |
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39 | |||
40 | public boolean accept(File pathname) { |
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41 | return (pathname.getName().toLowerCase().endsWith(".dbf")); |
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42 | } |
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43 | |||
44 | public String getDescription() { |
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45 | return DBFStoreProvider.DESCRIPTION;
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46 | } |
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47 | |||
48 | public DataStoreParameters getParameters(File file) throws DataException { |
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49 | DataManager manager = DALLocator.getDataManager(); |
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50 | DBFStoreParameters params = (DBFStoreParameters) manager |
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51 | .createStoreParameters(this.getDataStoreProviderName());
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52 | params.setDBFFile(file.getPath()); |
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53 | return params;
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54 | } |
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55 | |||
56 | public boolean canCreate() { |
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57 | return true; |
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58 | } |
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59 | |||
60 | public boolean canCreate(NewDataStoreParameters parameters) { |
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61 | DBFNewStoreParameters params = (DBFNewStoreParameters) parameters; |
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62 | if (params.getDBFFile().getParentFile().canWrite()) {
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63 | return false; |
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64 | } |
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65 | if (params.getDBFFile().exists()) {
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66 | if (!params.getDBFFile().canWrite()) {
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67 | return false; |
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68 | } |
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69 | } |
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70 | if (params.getDefaultFeatureType() == null) { |
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71 | return false; |
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72 | } |
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73 | return true; |
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74 | } |
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75 | |||
76 | public void create(NewDataStoreParameters parameters, boolean overwrite) |
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77 | throws CreateException {
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78 | |||
79 | final DBFNewStoreParameters params = (DBFNewStoreParameters) parameters;
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80 | File file = params.getDBFFile();
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81 | |||
82 | if (!file.isAbsolute()) {
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83 | throw new AbsolutePathRequiredException(file.getPath()); |
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84 | } |
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85 | |||
86 | |||
87 | if (file.exists()) {
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88 | if (overwrite) {
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89 | // if (!file.delete()) {
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90 | // throw new CreateException(this.getDataStoreProviderName(),
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91 | // new IOException(
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92 | // "cannot delete file"));
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93 | // }
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94 | } else {
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95 | throw new CreateException(this.getDataStoreProviderName(), |
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96 | new IOException( |
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97 | "file already exist"));
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98 | } |
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99 | } |
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100 | |||
101 | final FileResource resource;
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102 | try {
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103 | |||
104 | resource = (FileResource) this.serverExplorer
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105 | .getServerExplorerProviderServices().createResource( |
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106 | FileResource.NAME, |
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107 | new Object[] { file.getAbsolutePath() }); |
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108 | } catch (InitializeException e1) {
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109 | throw new CreateException(params.getDBFFileName(), e1); |
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110 | } |
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111 | resource.addConsumer(this);
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112 | |||
113 | try {
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114 | resource.execute(new ResourceAction() {
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115 | public Object run() throws Exception { |
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116 | DBFFeatureWriter writer = |
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117 | new DBFFeatureWriter(getDataStoreProviderName());
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118 | |||
119 | writer.begin(params, params.getDefaultFeatureType(), 0);
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120 | writer.end(); |
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121 | writer.dispose(); |
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122 | resource.notifyChanges(); |
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123 | return null; |
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124 | } |
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125 | }); |
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126 | } catch (ResourceExecuteException e) {
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127 | throw new CreateException(this.getDataStoreProviderName(), e); |
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128 | } finally {
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129 | resource.removeConsumer(this);
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130 | } |
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131 | |||
132 | |||
133 | } |
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134 | |||
135 | |||
136 | protected NewDataStoreParameters createInstanceNewDataStoreParameters() {
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137 | return new DBFNewStoreParameters(); |
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138 | } |
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139 | |||
140 | |||
141 | public NewDataStoreParameters getCreateParameters() {
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142 | NewFeatureStoreParameters params = (NewFeatureStoreParameters) this
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143 | .createInstanceNewDataStoreParameters(); |
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144 | params.setDefaultFeatureType(this.serverExplorer
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145 | .getServerExplorerProviderServices().createNewFeatureType()); |
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146 | return params;
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147 | } |
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148 | |||
149 | public void initialize(FilesystemServerExplorerProviderServices serverExplorer) { |
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150 | this.serverExplorer = serverExplorer;
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151 | |||
152 | } |
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153 | |||
154 | public void remove(DataStoreParameters parameters) throws RemoveException { |
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155 | DBFStoreParameters params = (DBFStoreParameters) parameters; |
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156 | File file = params.getDBFFile();
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157 | if (!file.exists()) {
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158 | throw new RemoveException(this.getDataStoreProviderName(), |
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159 | new FileNotFoundException(params.getDBFFile())); |
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160 | } |
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161 | if (!file.delete()) {
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162 | throw new RemoveException(this.getDataStoreProviderName(), |
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163 | new IOException()); // FIXME Exception |
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164 | } |
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165 | } |
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166 | |||
167 | public boolean closeResourceRequested(ResourceProvider resource) { |
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168 | // while it is using a resource anyone can't close it
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169 | return !(this.equals(resource)); |
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170 | } |
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171 | |||
172 | /*
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173 | * (non-Javadoc)
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174 | *
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175 | * @see
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176 | * org.gvsig.fmap.dal.resource.spi.ResourceConsumer#resourceChanged(org.
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177 | * gvsig.fmap.dal.resource.spi.ResourceProvider)
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178 | */
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179 | public void resourceChanged(ResourceProvider resource) { |
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180 | // Do nothing
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181 | } |
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182 | |||
183 | } |