svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.exportto / org.gvsig.exportto.lib / org.gvsig.exportto.lib.api / src / main / java / org / gvsig / export / spi / CutAttributeNamesTranslator.java @ 44386
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| 1 | 44386 | omartinez | package org.gvsig.export.spi; |
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| 2 | 43504 | jjdelcerro | |
| 3 | 44270 | omartinez | import java.util.ArrayList; |
| 4 | 43504 | jjdelcerro | import java.util.Collection; |
| 5 | 44386 | omartinez | import java.util.logging.Level; |
| 6 | import java.util.logging.Logger; |
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| 7 | import org.apache.commons.lang3.StringUtils; |
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| 8 | 44270 | omartinez | import org.gvsig.export.ExportAttributes; |
| 9 | import org.gvsig.export.ExportAttributes.ExportAttribute; |
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| 10 | 43504 | jjdelcerro | |
| 11 | 44386 | omartinez | public class CutAttributeNamesTranslator implements AttributeNamesTranslator { |
| 12 | 43504 | jjdelcerro | |
| 13 | 44386 | omartinez | public final int maxNameLen; |
| 14 | 44270 | omartinez | |
| 15 | 44386 | omartinez | public CutAttributeNamesTranslator(int maxNameLen) { |
| 16 | 43504 | jjdelcerro | this.maxNameLen = maxNameLen;
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| 17 | } |
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| 18 | |||
| 19 | 44270 | omartinez | private String buildTranslatedName(String source_name, Collection<String> current_names) { |
| 20 | 43504 | jjdelcerro | |
| 21 | 44270 | omartinez | int len = source_name.length();
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| 22 | 44300 | omartinez | if (source_name.isEmpty()) {
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| 23 | source_name = "Field";
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| 24 | } |
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| 25 | if (len <= this.maxNameLen && !current_names.contains(source_name)) { |
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| 26 | 44270 | omartinez | /*
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| 27 | 43504 | jjdelcerro | * Should not happen
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| 28 | 44270 | omartinez | */
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| 29 | return source_name;
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| 30 | } |
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| 31 | 44300 | omartinez | String target_name = source_name;
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| 32 | 44270 | omartinez | /*
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| 33 | 43504 | jjdelcerro | * GDAL field name truncation method (extended from 100 to 255)
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| 34 | * THISISAVERYLONGNAME => THISISAVER, THISISAV_1 ... THISISAV_9,
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| 35 | * THISISAV10 ... THISISAV99, THISISA100 ... THISISA255
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| 36 | * (255 = max number of fields in a SHP)
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| 37 | 44270 | omartinez | */
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| 38 | for (int i = 0; i < 255; i++) { |
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| 39 | 44300 | omartinez | if (len <= this.maxNameLen) { |
| 40 | if (i <= 9) { |
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| 41 | if (len == this.maxNameLen) { |
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| 42 | target_name = source_name.substring(0, 8) + "_" + i; |
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| 43 | } else {
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| 44 | target_name = source_name + "_" + i;
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| 45 | } |
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| 46 | } else if (i <= 99) { |
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| 47 | if (len == this.maxNameLen) { |
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| 48 | target_name = source_name.substring(0, 8) + i;; |
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| 49 | } else {
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| 50 | target_name = source_name + i; |
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| 51 | } |
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| 52 | } else {
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| 53 | if (len == this.maxNameLen-1) { |
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| 54 | target_name = source_name.substring(0, 7) + i;; |
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| 55 | } else {
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| 56 | target_name = source_name + i; |
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| 57 | } |
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| 58 | } |
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| 59 | |||
| 60 | 43504 | jjdelcerro | } else {
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| 61 | 44300 | omartinez | if (i == 0) { |
| 62 | target_name = source_name.substring(0, 10); |
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| 63 | } else if (i <= 9) { |
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| 64 | target_name = source_name.substring(0, 8) + "_" + i; |
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| 65 | } else if (i <= 99) { |
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| 66 | target_name = source_name.substring(0, 8) + i; |
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| 67 | } else {
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| 68 | target_name = source_name.substring(0, 7) + i; |
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| 69 | } |
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| 70 | 43504 | jjdelcerro | } |
| 71 | 44270 | omartinez | if (!current_names.contains(target_name)) {
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| 72 | 43504 | jjdelcerro | return target_name;
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| 73 | } |
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| 74 | 44300 | omartinez | |
| 75 | 44270 | omartinez | } |
| 76 | /*
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| 77 | 43504 | jjdelcerro | * Should not get here
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| 78 | 44270 | omartinez | */
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| 79 | return source_name.substring(0, 4) + "_" + (System.currentTimeMillis() % 1000000); |
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| 80 | } |
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| 81 | |||
| 82 | @Override
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| 83 | public boolean isValidName(ExportAttributes attributes, int index, String name) { |
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| 84 | ExportAttribute selectedAttr = attributes.get(index); |
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| 85 | 44300 | omartinez | //
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| 86 | String selfName = this.getNameSuggestion(attributes, index, name); |
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| 87 | if (!selfName.equals(name)) {
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| 88 | return false; |
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| 89 | } |
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| 90 | |||
| 91 | // check with others values
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| 92 | 44270 | omartinez | boolean valid = true; |
| 93 | for (int i = 0; i < attributes.size(); i++) { |
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| 94 | if (i == index) {
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| 95 | continue;
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| 96 | } |
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| 97 | ExportAttribute attr = attributes.get(i); |
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| 98 | 44300 | omartinez | String newName = attr.getNewName();
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| 99 | if (newName.isEmpty()) {
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| 100 | 44270 | omartinez | return false; |
| 101 | } |
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| 102 | 44300 | omartinez | if (newName.equals(name)) {
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| 103 | 44270 | omartinez | return false; |
| 104 | } |
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| 105 | 44300 | omartinez | if (newName.equals(this.getNameSuggestion(attributes, index, name))) { |
| 106 | return false; |
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| 107 | } |
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| 108 | 44270 | omartinez | } |
| 109 | return valid;
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| 110 | } |
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| 111 | |||
| 112 | @Override
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| 113 | public String getNameSuggestion(ExportAttributes attributes, int index, String name) { |
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| 114 | ArrayList names = new ArrayList(); |
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| 115 | 44300 | omartinez | boolean oneTime = true; |
| 116 | 44270 | omartinez | for (ExportAttribute attribute : attributes) {
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| 117 | 44300 | omartinez | if (attribute.getNewName().equals(name) && oneTime) {
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| 118 | oneTime = false;
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| 119 | 44270 | omartinez | continue;
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| 120 | } |
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| 121 | names.add(attribute.getNewName()); |
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| 122 | } |
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| 123 | String target_name = buildTranslatedName(name, names);
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| 124 | return target_name;
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| 125 | } |
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| 126 | 44386 | omartinez | |
| 127 | @Override
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| 128 | public CutAttributeNamesTranslator clone() {
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| 129 | CutAttributeNamesTranslator clone = null;
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| 130 | try {
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| 131 | clone = ( CutAttributeNamesTranslator)super.clone();
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| 132 | } catch (CloneNotSupportedException ex) { |
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| 133 | Logger.getLogger(CutAttributeNamesTranslator.class.getName()).log(Level.SEVERE, null, ex); |
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| 134 | } |
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| 135 | |||
| 136 | return clone;
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| 137 | |||
| 138 | } |
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| 139 | |||
| 140 | @Override
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| 141 | public String getNameSuggestion(String name) { |
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| 142 | String s = StringUtils.left(name, maxNameLen);
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| 143 | return s;
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| 144 | } |
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| 145 | 43504 | jjdelcerro | } |