svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.xml2db / org.gvsig.xml2db.lib / org.gvsig.xml2db.lib.impl / src / main / java / org / gvsig / xml2db / lib / impl / StructureExtractorImpl.java @ 47606
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.gvsig.xml2db.lib.impl; |
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.Reader; |
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import java.nio.charset.Charset; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Locale; |
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import javax.xml.parsers.SAXParser; |
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import javax.xml.parsers.SAXParserFactory; |
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import org.apache.commons.lang3.ArrayUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.tika.utils.CharsetUtils; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.crs.CRSFactory; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.feature.EditableForeingKey; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynField_v2; |
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import org.gvsig.tools.i18n.I18nManager; |
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import org.gvsig.tools.task.SimpleTaskStatus; |
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import org.gvsig.xml2db.lib.api.xmlinfo.XMLAttributeInfo; |
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import org.gvsig.xml2db.lib.api.xmlinfo.XMLInfo; |
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import org.gvsig.xml2db.lib.api.xmlinfo.XMLTableInfo; |
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import org.gvsig.xml2db.lib.impl.xmlinfo.XMLAttributeInfoImpl; |
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import org.gvsig.xml2db.lib.impl.xmlinfo.XMLInfoImpl; |
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import org.gvsig.xml2db.lib.impl.xmlinfo.XMLTableInfoImpl; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.xml.sax.Attributes; |
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import org.xml.sax.InputSource; |
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import org.xml.sax.Locator; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.helpers.DefaultHandler; |
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/**
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*
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* @author jjdelcerro
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*/
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public class StructureExtractorImpl { |
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private static final Logger LOGGER = LoggerFactory.getLogger(StructureExtractorImpl.class); |
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private String tablePrefix; |
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@SuppressWarnings("UseSpecificCatch") |
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private void extractTags(XMLInfoImpl xmlinfo, Reader reader, SimpleTaskStatus status) { |
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if( reader == null ) { |
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throw new IllegalArgumentException("reader is null"); |
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} |
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try {
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final DataManager dataManager = DALLocator.getDataManager();
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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status.message(i18n.getTranslation("_Reading_xml")+" 1/5"); |
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status.setRangeOfValues(0, xmlinfo.getCountLines());
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SAXParserFactory spf = SAXParserFactory.newInstance(); |
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spf.setNamespaceAware(true);
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SAXParser saxParser = spf.newSAXParser();
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InputSource is = new InputSource(reader);
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List<String> path = new ArrayList<>(); |
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saxParser.parse(is, new DefaultHandler() {
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private Locator locator;
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int size;
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int refreshInterval = 1; |
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StringBuilder chars = new StringBuilder(); |
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@Override
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public void setDocumentLocator(Locator locator) { |
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this.locator = locator;
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} |
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@Override
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public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { |
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int line = this.locator.getLineNumber(); |
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int column = this.locator.getColumnNumber()-2-localName.length(); |
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if(line % refreshInterval == 0) { |
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status.setCurValue(line); |
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} |
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if(line > 100000){ |
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refreshInterval = 10000;
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} else if(line > 10000){ |
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refreshInterval = 1000;
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} else if(line > 1000){ |
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refreshInterval = 100;
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} else if(line > 100){ |
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refreshInterval = 10;
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} |
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String idvalue = dataManager.createUniqueID();
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path.add(localName); |
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String path_s = StringUtils.join(path, "/"); |
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XMLAttributeInfoImpl info = xmlinfo.getTag(path_s); |
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if( info == null ) { |
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info = new XMLAttributeInfoImpl(xmlinfo.getLocale(), path_s);
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xmlinfo.addTag(info); |
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} |
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if( path.size()>1 ) { |
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List<String> parentpath = path.subList(0, path.size()-1); |
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String parentpath_s = StringUtils.join(parentpath, "/"); |
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XMLAttributeInfoImpl parentinfo = xmlinfo.getTag(parentpath_s); |
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parentinfo.incrChildCount(localName); |
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parentinfo.setLastChildID(localName, idvalue); |
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} |
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for (int i = 0; i < attributes.getLength(); i++) { |
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String name = attributes.getLocalName(i);
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String value = attributes.getValue(i);
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String idvalueChild = dataManager.createUniqueID();
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XMLAttributeInfoImpl infoChild = xmlinfo.getTag(path_s+"/"+name);
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if( infoChild == null ) { |
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infoChild = new XMLAttributeInfoImpl(xmlinfo.getLocale(), path_s+"/"+name); |
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xmlinfo.addTag(infoChild); |
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} |
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info.incrChildCount(infoChild.getName()); |
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info.setLastChildID(infoChild.getName(), idvalueChild); |
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infoChild.addValue(value); |
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if( xmlinfo.getSrid() == null && StringUtils.containsIgnoreCase(infoChild.getName(), "srid") ) { |
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IProjection proj = getProjection(value); |
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if( proj!=null ) { |
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xmlinfo.setSrid(proj); |
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} |
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} |
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} |
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chars.setLength(0);
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} |
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@Override
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public void endElement(String uri, String localName, String qName) throws SAXException { |
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int line = this.locator.getLineNumber(); |
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// status.setCurValue(line);
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String path_s = StringUtils.join(path, "/"); |
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XMLAttributeInfoImpl info = xmlinfo.getTag(path_s); |
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if( info == null ) { |
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info = new XMLAttributeInfoImpl(xmlinfo.getLocale(), path_s);
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xmlinfo.addTag(info); |
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} |
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XMLAttributeInfoImpl parentinfo = null;
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if( path.size()>1 ) { |
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List<String> parentpath = path.subList(0, path.size()-1); |
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String parentpath_s = StringUtils.join(parentpath, "/"); |
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parentinfo = xmlinfo.getTag(parentpath_s); |
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} |
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if( info.hasChilds() || (parentinfo != null && (parentinfo.getChildsCount(localName)>1))) { |
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String value = this.chars.toString(); |
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if( StringUtils.isNotBlank(value) ) {
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String name = info.getName()+"$v"; |
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String idvalueChild = dataManager.createUniqueID();
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XMLAttributeInfoImpl infoChild = xmlinfo.getTag(path_s+"/"+name);
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if( infoChild == null ) { |
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infoChild = new XMLAttributeInfoImpl(xmlinfo.getLocale(), path_s+"/"+name); |
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xmlinfo.addTag(infoChild); |
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} |
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info.incrChildCount(infoChild.getName()); |
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info.setLastChildID(infoChild.getName(), idvalueChild); |
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infoChild.addValue(value); |
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} |
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} else {
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String value = this.chars.toString(); |
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info.addValue(value); |
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if( StringUtils.containsIgnoreCase(info.getName(), "srid") ) { |
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IProjection proj = getProjection(value); |
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if( proj!=null ) { |
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xmlinfo.setSrid(proj); |
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} |
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} |
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} |
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info.consolidateChildCounters(); |
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// if( StringUtils.equalsIgnoreCase("LUGAR_CIRCULABA", info.getName()) ) {
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// System.out.println("Oh!");
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// }
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path.remove(path.size()-1);
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chars.setLength(0);
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} |
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@Override
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public void characters(char[] ch, int start, int length) throws SAXException { |
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int line = this.locator.getLineNumber(); |
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// status.setCurValue(line);
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this.chars.append(ch, start, length);
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} |
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}); |
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} catch (Exception ex) { |
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throw new RuntimeException("Can't extract tags.", ex); |
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} |
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} |
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private IProjection getProjection(String value) { |
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if( StringUtils.isBlank(value) ) {
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return null; |
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} |
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IProjection proj = null;
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try {
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proj = CRSFactory.getCRS(value); |
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} catch(Throwable t) { |
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} |
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if( proj != null ) { |
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return proj;
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} |
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try {
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proj = CRSFactory.getCRS("EPSG:"+value);
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} catch(Throwable t) { |
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} |
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return proj;
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} |
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public XMLInfo extractStructure(File xml, Charset charset, IProjection projection, Locale locale, SimpleTaskStatus status) throws FileNotFoundException, IOException { |
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XMLInfoImpl xmlinfo = new XMLInfoImpl();
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xmlinfo.setTablePrefix(this.tablePrefix);
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xmlinfo.setLocale(locale); |
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xmlinfo.setSrid(projection); |
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xmlinfo.setTablePrefix(tablePrefix); |
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long count = Xml2dbCommons.countLines(xml, charset, status);
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xmlinfo.setCountLines(count); |
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InputSource is = Xml2dbCommons.openReader(xml,charset); |
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return extractStructure(is, xmlinfo, status);
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} |
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public XMLInfo extractStructure(InputStream xml, Charset charset, IProjection projection, Locale locale, SimpleTaskStatus status) throws IOException { |
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XMLInfoImpl xmlinfo = new XMLInfoImpl();
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xmlinfo.setLocale(locale); |
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xmlinfo.setSrid(projection); |
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xmlinfo.setTablePrefix(tablePrefix); |
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// long count = Xml2dbCommons.countLines(xml, charset, status);
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xmlinfo.setCountLines(-1);
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InputSource is = Xml2dbCommons.openReader(xml, charset); |
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return extractStructure(is, xmlinfo, status);
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} |
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public XMLInfo extractStructure(Reader reader, IProjection projection, Locale locale, SimpleTaskStatus status) { |
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XMLInfoImpl xmlinfo = new XMLInfoImpl();
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xmlinfo.setLocale(locale); |
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xmlinfo.setSrid(projection); |
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xmlinfo.setTablePrefix(tablePrefix); |
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InputSource is = new InputSource(reader);
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return extractStructure(is, xmlinfo, status);
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} |
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public XMLInfo extractStructure(InputSource is, XMLInfoImpl xmlinfo, SimpleTaskStatus status) {
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if( xmlinfo.getCharset()==null ) { |
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xmlinfo.setCharset(CharsetUtils.forName(is.getEncoding())); |
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} |
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extractTags(xmlinfo, is.getCharacterStream(), status); |
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buildTablesFromTags(xmlinfo, status); |
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removeDuplicateTableNames(xmlinfo, status); |
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createPrimaryKeyAndForeignKeys(xmlinfo, status); |
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createFeatureTypes(xmlinfo, status); |
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return xmlinfo;
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} |
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private String plural(String s) { |
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int l = s.length();
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char ch = s.substring(l-1,l).toLowerCase().charAt(0); |
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if( ch=='a' || ch=='e' || ch=='i' || ch=='o' || ch=='u' ) { |
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return s+"s"; |
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} |
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return s+"es"; |
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} |
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private void buildTablesFromTags(XMLInfoImpl xmlinfo, SimpleTaskStatus status) { |
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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status.message(i18n.getTranslation("_Identifying_tables")+" 2/5"); |
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status.setRangeOfValues(0, xmlinfo.getTagsPaths().size());
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for (String tagPath : xmlinfo.getTagsPaths()) { |
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XMLAttributeInfoImpl tag1Info = xmlinfo.getTagInfo(tagPath); |
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// System.out.println(tag1Info.getPath());
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XMLTableInfoImpl tableInfo = new XMLTableInfoImpl(tagPath, tag1Info);
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for (String tagPath2 : xmlinfo.getTagsPaths()) { |
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if( tagPath.equals(tagPath2) ) {
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continue;
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} |
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if( tagPath2.startsWith(tagPath+"/") ) { |
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String fieldName = tagPath2.substring(tagPath.length()+1); |
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if( !fieldName.contains("/") ) { |
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XMLAttributeInfoImpl info = xmlinfo.getTag(tagPath2); |
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tableInfo.add(info); |
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} |
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} |
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} |
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if( !tableInfo.isEmpty() ) {
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xmlinfo.addTable(tableInfo); |
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} |
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status.incrementCurrentValue(); |
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} |
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} |
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private void removeDuplicateTableNames(XMLInfoImpl xmlinfo, SimpleTaskStatus status) { |
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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status.message(i18n.getTranslation("_Fixing_table_names")+" 3/5"); |
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status.setRangeOfValues(0, xmlinfo.size());
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// Tratamos de corregir nombres duplicados en las tablas.
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for (XMLTableInfo tableInfo01 : xmlinfo) {
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XMLTableInfoImpl tableInfo1 = (XMLTableInfoImpl) tableInfo01; |
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status.message(i18n.getTranslation("_Fixing_table_names")+" 3/5 ("+tableInfo1.getName()+")"); |
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boolean renombrar = false; |
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for (XMLTableInfo tableInfo02 : xmlinfo) {
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XMLTableInfoImpl tableInfo2 = (XMLTableInfoImpl) tableInfo02; |
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if( tableInfo1 == tableInfo2 ) {
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continue;
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} |
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if( StringUtils.equalsIgnoreCase(tableInfo1.getName(), tableInfo2.getName()) ) {
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// FIXME: solo usa los dos ultimos nombres, podrian coincidir igualmente!!
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String[] path_ss = tableInfo2.getPath().split("/"); |
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int l = path_ss.length;
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String name = path_ss[l-1]+"_"+path_ss[l-2]; |
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tableInfo2.rename(name); |
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renombrar = true;
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// System.out.println("###: Tablas con el mismo nombre, renombrado a "+name);
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// System.out.println("###: "+tableInfo1.getPath());
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// System.out.println("###: "+tableInfo2.getPath());
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} |
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} |
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if( renombrar ) {
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// FIXME: solo usa los dos ultimos nombres, podrian coincidir igualmente!!
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String[] path_ss = tableInfo1.getPath().split("/"); |
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int l = path_ss.length;
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String name = path_ss[l-1]+"_"+path_ss[l-2]; |
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tableInfo1.rename(name); |
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} |
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status.incrementCurrentValue(); |
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} |
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} |
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private void createPrimaryKeyAndForeignKeys(XMLInfoImpl xmlinfo, SimpleTaskStatus status) { |
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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status.message(i18n.getTranslation("_Identifying_foreign_keys")+" 4/5"); |
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status.setRangeOfValues(0, xmlinfo.size());
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for (XMLTableInfo tableInfo0 : xmlinfo) {
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XMLTableInfoImpl tableInfo = (XMLTableInfoImpl) tableInfo0; |
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status.message(i18n.getTranslation("_Identifying_foreign_keys")+" 4/5 ("+tableInfo.getName()+")"); |
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String[] fieldkeys = tableInfo.getPath().split("/"); |
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for (int i = 0; i < fieldkeys.length; i++) { |
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String fieldkey = fieldkeys[i];
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if( i==fieldkeys.length-1 ) { |
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tableInfo.add(new XMLAttributeInfoImpl(xmlinfo.getLocale(), "$ID_"+tableInfo.getName(), DataTypes.INT).setPk(true)); |
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} else {
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// TODO es una relacion 1:1
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XMLTableInfo tableInfo2 = xmlinfo.getTableByPath(StringUtils.join(ArrayUtils.subarray(fieldkeys, 0, i+1),"/")); |
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tableInfo.add(new XMLAttributeInfoImpl(xmlinfo.getLocale(), "$ID_"+tableInfo2.getName(), DataTypes.INT) |
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.setFk(true)
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.setFkCodeName("$ID_"+fieldkey)
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.setFkTableName(fieldkey) |
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); |
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} |
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} |
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for (XMLAttributeInfo field0 : tableInfo) {
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XMLAttributeInfoImpl field = (XMLAttributeInfoImpl) field0; |
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if( xmlinfo.existsTableByPath(tableInfo.getPath()+"/"+field.getName()) ) { |
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XMLTableInfoImpl fktableInfo = xmlinfo.getTableByPath(tableInfo.getPath()+"/"+field.getName());
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int count = tableInfo.getMaxCountChild(field.getName());
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if( count<1 ) { |
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// Do nothing
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} else if( count>1 ) { |
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// TODO es una relacion 1:n
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field.setAggregate(true);
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field.setFkCodeName("$ID_"+tableInfo.getName());
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field.setFkTableName(fktableInfo.getName()); |
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field.setSize(45);
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field.setType(DataTypes.LIST); |
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} else {
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// TODO es una relacion 1:1
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field.setFk(true);
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field.setFkCodeName("$ID_"+fktableInfo.getName());
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field.setFkTableName(fktableInfo.getName()); |
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field.setSize(0);
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field.setType(DataTypes.INT); |
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} |
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} |
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} |
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tableInfo.sort(); |
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// System.out.println(tableInfo);
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status.incrementCurrentValue(); |
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} |
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} |
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private void createFeatureTypes(XMLInfoImpl xmlinfo, SimpleTaskStatus status) { |
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I18nManager i18n = ToolsLocator.getI18nManager(); |
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status.message(i18n.getTranslation("_Creating_table_definitions")+" 5/5"); |
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status.setRangeOfValues(0, xmlinfo.size());
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DataManager dataManager = DALLocator.getDataManager(); |
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for (XMLTableInfo tableInfo0 : xmlinfo) {
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XMLTableInfoImpl tableInfo = (XMLTableInfoImpl) tableInfo0; |
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status.message(i18n.getTranslation("_Creating_table_definitions")+" 5/5 ("+tableInfo.getName()+")"); |
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EditableFeatureType ft = dataManager.createFeatureType(); |
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ft.setLabel(tableInfo.getName()); |
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ft.getTags().set("xml2db.tablename", xmlinfo.getNameWithPrefix(tableInfo.getName()));
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ft.getTags().set("vcsgis.storename", xmlinfo.getNameWithPrefix(tableInfo.getName()));
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ft.getTags().set("xml2db.path", tableInfo.getPath());
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ft.getTags().set("xml2db.tableprefix", xmlinfo.getTablePrefix());
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for (XMLAttributeInfo attrinfo0 : tableInfo) {
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XMLAttributeInfoImpl attrinfo = (XMLAttributeInfoImpl) attrinfo0; |
| 440 |
if( ft.get(attrinfo.getName())!=null ) { |
| 441 |
LOGGER.warn("Duplicated attribute '"+attrinfo.getName()+"' in '"+xmlinfo.getNameWithPrefix(tableInfo.getName())+"'."); |
| 442 |
} |
| 443 |
if( attrinfo.isAggregate() ) {
|
| 444 |
continue;
|
| 445 |
} |
| 446 |
EditableFeatureAttributeDescriptor attrdesc; |
| 447 |
if( attrinfo.getName().startsWith("$ID") ) { |
| 448 |
attrdesc = ft.add(attrinfo.getName(), attrinfo.getType()); |
| 449 |
attrdesc.setLabel("Id. "+attrinfo.getName().substring(4)); |
| 450 |
attrdesc.setSize(attrinfo.getSize()); |
| 451 |
} else if( attrinfo.getName().endsWith("$v") ) { |
| 452 |
attrdesc = ft.add(attrinfo.getName(), attrinfo.getType()); |
| 453 |
attrdesc.setLabel(StringUtils.left(attrinfo.getName(),attrinfo.getName().length()-2));
|
| 454 |
attrdesc.setSize(attrinfo.getSize()); |
| 455 |
} else {
|
| 456 |
attrdesc = ft.add(attrinfo.getName(), attrinfo.getType()); |
| 457 |
attrdesc.setSize(attrinfo.getSize()); |
| 458 |
attrdesc.setPrecision(attrinfo.getPrecision()); |
| 459 |
attrdesc.setScale(attrinfo.getScale()); |
| 460 |
if( attrdesc.getType()==DataTypes.GEOMETRY ) {
|
| 461 |
attrdesc.setGeometryType(attrinfo.getGeometryType()); |
| 462 |
attrdesc.setSRS(xmlinfo.getSrid()); |
| 463 |
attrdesc.setIsIndexed(true);
|
| 464 |
} |
| 465 |
} |
| 466 |
attrdesc.setLocale(xmlinfo.getLocale()); |
| 467 |
attrdesc.setIsPrimaryKey(attrinfo.isPk()); |
| 468 |
if( attrinfo.isFk() ) {
|
| 469 |
EditableForeingKey fk = attrdesc.getForeingKey(); |
| 470 |
fk.setForeingKey(true);
|
| 471 |
fk.setTableName(xmlinfo.getNameWithPrefix(attrinfo.getFkTableName())); |
| 472 |
fk.setCodeName(attrinfo.getFkCodeName()); |
| 473 |
fk.setClosedList(false);
|
| 474 |
fk.setLabelFormula("\""+attrinfo.getFkCodeName()+"\""); |
| 475 |
attrdesc.setRelationType(DynField_v2.RELATION_TYPE_COLLABORATION); |
| 476 |
attrdesc.setIsIndexed(true);
|
| 477 |
} |
| 478 |
} |
| 479 |
FeatureAttributeDescriptor pk = ft.getPrimaryKey()[0];
|
| 480 |
for (XMLAttributeInfo attrinfo0 : tableInfo) {
|
| 481 |
XMLAttributeInfoImpl attrinfo = (XMLAttributeInfoImpl) attrinfo0; |
| 482 |
if( attrinfo.isAggregate() ) {
|
| 483 |
EditableFeatureAttributeDescriptor attrdesc = ft.add("$List_"+attrinfo.getName(), attrinfo.getType());
|
| 484 |
attrdesc.setLabel(plural(attrinfo.getName())); |
| 485 |
attrdesc.getTags().set("dal.relatedfeatures.table", xmlinfo.getNameWithPrefix(attrinfo.getFkTableName()));
|
| 486 |
attrdesc.getTags().set("dal.relatedfeatures.unique.field.name", attrinfo.getFkCodeName());
|
| 487 |
attrdesc.getTags().set("dynform.label.empty", true); |
| 488 |
attrdesc.getTags().set("dynform.resizeWeight", 100); |
| 489 |
attrdesc.setFeatureAttributeEmulator( |
| 490 |
"SELECT * FROM \""+xmlinfo.getNameWithPrefix(attrinfo.getFkTableName()) + "\" WHERE ( (\""+pk.getName()+"\") = (\""+xmlinfo.getNameWithPrefix(attrinfo.getFkTableName()) + "\".\""+pk.getName()+"\") )" |
| 491 |
); |
| 492 |
attrdesc.setRelationType(DynField_v2.RELATION_TYPE_AGGREGATE); |
| 493 |
} |
| 494 |
} |
| 495 |
tableInfo.setFeatureType(ft); |
| 496 |
status.incrementCurrentValue(); |
| 497 |
} |
| 498 |
} |
| 499 |
|
| 500 |
public void setTablePrefix(String tablePrefix) { |
| 501 |
this.tablePrefix = tablePrefix;
|
| 502 |
} |
| 503 |
} |