Application: gvSIG desktop » Library: org.gvsig.tools

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2020 gvSIG Association.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 3

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.tools.namestranslator;

import java.util.ArrayList;

import java.util.Collections;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import javax.json.Json;

import javax.json.JsonArrayBuilder;

import javax.json.JsonObject;

import javax.json.JsonObjectBuilder;

import org.apache.commons.lang3.StringUtils;

/**

 *

 * @author jjdelcerro

 */

public class TrimNamesTranslator 

        extends AbstractNamesTranslator

        implements NamesTranslator 

  {

  protected List<String> translatedNames;

  protected Map<String,String> source2translation;

  protected Map<String,String> translation2source;

  protected boolean hasTranslations;

  protected int maxNameLen;

  protected TrimNamesTranslator(int maxNameLen) {

    if( maxNameLen<8 ) {

      throw new IllegalArgumentException("Invalid max name len, can be greater than 7.");

    }

    this.maxNameLen = maxNameLen;

  }

  @Override

  protected void build() {

    this.translatedNames = new ArrayList<>();

    this.hasTranslations = false;

    for (String sourceName : this.sourceNames) {

      String translatedName = this.getSuggestion(sourceName);

      this.translatedNames.add(translatedName);

      if( !sourceName.equals(translatedName) ) {

        this.hasTranslations = true;

      }

    }

    this.source2translation = null;

    this.translation2source = null;      

    this.sourceNames = Collections.unmodifiableList(this.sourceNames);

  }

  @Override

  public List<String> getSourceNames() {

    return this.sourceNames;

  }

  @Override

  public List<String> getTranslatedNames() {

    return this.translatedNames;

  }

  @Override

  public String getTranslation(String sourceName) {

    if( this.hasTranslations ) {

      if( this.source2translation==null ) {

        this.source2translation = new HashMap<>();

        for (int i = 0; i < this.sourceNames.size(); i++) {

          this.source2translation.put(this.sourceNames.get(i), this.translatedNames.get(i));

        }

      }

      return this.source2translation.get(sourceName);

    }

    return sourceName;

  }

  @Override

  public String getSource(String translatedName) {

    if( this.hasTranslations ) {

      if( this.translation2source==null ) {

        this.translation2source = new HashMap<>();

        for (int i = 0; i < this.sourceNames.size(); i++) {

          this.translation2source.put(this.translatedNames.get(i), this.sourceNames.get(i));

        }

      }

      return this.translation2source.get(translatedName);

    }

    return translatedName;

  }

  @Override

  public boolean isValid(String name) {

    String sourceName = name;

    if ( StringUtils.isBlank(sourceName) ) {

      sourceName = "field";

    }

    sourceName = sourceName.toLowerCase();

    int len = sourceName.length();

    return len <= this.maxNameLen && !this.translatedNames.contains(sourceName);

  }

  @Override

  public String getSuggestion(String name) {

    String sourceName = name;

    if ( StringUtils.isBlank(sourceName) ) {

      sourceName = "field";

    }

    sourceName = sourceName.toLowerCase();

    int len = sourceName.length();

    if (len <= this.maxNameLen && !this.translatedNames.contains(sourceName)) {

      return sourceName;

    }

    @SuppressWarnings("UnusedAssignment")

    String translatedName = sourceName;

    for (int i = 0; i < 255; i++) {

      if (len <= this.maxNameLen) {

        if (i <= 9) {

          if (len == this.maxNameLen) {

            translatedName = sourceName.substring(0, this.maxNameLen-3) + "_" + i;

          } else {

            translatedName = sourceName + "_" + i;

          }

        } else if (i <= 99) {

          if (len == this.maxNameLen) {

            translatedName = sourceName.substring(0, this.maxNameLen-3) + i;

          } else {

            translatedName = sourceName + i;

          }

        } else {

          if (len == this.maxNameLen - 1) {

            translatedName = sourceName.substring(0, this.maxNameLen-4) + i;

          } else {

            translatedName = sourceName + i;

          }

        }

      } else {

        if (i == 0) {

          translatedName = sourceName.substring(0, this.maxNameLen-1);

        } else if (i <= 9) {

          translatedName = sourceName.substring(0, this.maxNameLen-3) + "_" + i;

        } else if (i <= 99) {

          translatedName = sourceName.substring(0, this.maxNameLen-3) + i;

        } else {

          translatedName = sourceName.substring(0, this.maxNameLen-4) + i;

        }

      }

      if (!this.translatedNames.contains(translatedName)) {

        return translatedName;

      }

    }

    /*

                 * Should not get here

     */

    return sourceName.substring(0, this.maxNameLen-7) + "_" + (System.currentTimeMillis() % 1000000);

  }

  @Override

  public String getTranslation(int index) {

    return this.translatedNames.get(index);

  }

  @Override

  public int setTranslation(String sourceName, String translatedName) {

    if( StringUtils.isBlank(sourceName) ) {

      throw new IllegalArgumentException("Source name not valid (null or empty string).");

    }

    if( StringUtils.isBlank(translatedName) ) {

      throw new IllegalArgumentException("Translated name not valid (null or empty string).");

    }

    int translationToSet = this.sourceNames.indexOf(sourceName.toLowerCase());

    if( translationToSet<0 ) {

      throw new IllegalArgumentException("Don't exist name '"+sourceName+"'.");

    }

    translatedName = StringUtils.left(translatedName.toLowerCase(),this.maxNameLen);

    int translationToFix = -1;

    for (int i = 0; i < translatedNames.size(); i++) {

      if( i==translationToSet ) {

        continue;

      }

      if( translatedName.equals(this.translatedNames.get(i)) ) {

        translationToFix = i;

        break;

      }

    }

    this.translatedNames.set(translationToSet, translatedName);

    if( !this.hasTranslations ) {

      this.hasTranslations = this.translatedNames.get(translationToSet).equals(

              this.sourceNames.get(translationToSet)

      );

    }

    if( translationToFix>=0 ) {

      this.translatedNames.set(

              translationToFix, 

              this.getSuggestion(this.sourceNames.get(translationToFix))

      );

      if( !this.hasTranslations ) {

        this.hasTranslations = this.translatedNames.get(translationToFix).equals(

                this.sourceNames.get(translationToFix)

        );

      }

    }     

    this.source2translation = null;

    this.translation2source = null;      

    return translationToFix;

  }

  @Override

  public JsonObject toJson() {

    JsonObjectBuilder builder = Json.createObjectBuilder();

    JsonArrayBuilder translatedNamesBuilder = Json.createArrayBuilder();

    for (String translatedName : translatedNames) {

      translatedNamesBuilder.add(translatedName);

    }

    JsonArrayBuilder sourceNamesBuilder = Json.createArrayBuilder();

    for (String sourceName : sourceNames) {

      sourceNamesBuilder.add(sourceName);

    }

    builder.add("maxNameLen", this.maxNameLen);

    builder.add("sourceNames", sourceNamesBuilder);

    builder.add("translatedNames", translatedNamesBuilder);

    return builder.build();

  }

  @Override

  public void fromJson(JsonObject json) {

    this.sourceNames = new ArrayList<>();

    this.translatedNames = new ArrayList<>();

    this.maxNameLen = json.getInt("maxNameLen");

    for (int i = 0; i < json.getJsonArray("sourceNames").size(); i++) {

      String sourceName = json.getJsonArray("sourceNames").get(i).toString();

      String translatedName = json.getJsonArray("translatedNames").get(i).toString();

      this.sourceNames.add(sourceName);

      this.translatedNames.add(translatedName);

      if( !sourceName.equals(translatedName) ) {

        this.hasTranslations = true;

      }

    }

    this.source2translation = null;

    this.translation2source = null;      

    this.sourceNames = Collections.unmodifiableList(this.sourceNames);

  }

}