Package lupos.gui.operatorgraph.visualeditor.guielements

Source Code of lupos.gui.operatorgraph.visualeditor.guielements.VisualGraphOperatorWithPrefix

/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
*   - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
*     disclaimer.
*   - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
*     following disclaimer in the documentation and/or other materials provided with the distribution.
*   - Neither the name of the University of Luebeck nor the names of its contributors may be used to endorse or promote
*     products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package lupos.gui.operatorgraph.visualeditor.guielements;

import lupos.datastructures.items.Item;
import lupos.gui.operatorgraph.prefix.Prefix;
import lupos.gui.operatorgraph.visualeditor.VisualEditor;
import lupos.gui.operatorgraph.visualeditor.operators.Operator;
import lupos.gui.operatorgraph.visualeditor.util.DummyItem;
import lupos.gui.operatorgraph.visualeditor.util.VEPrefix;

public abstract class VisualGraphOperatorWithPrefix extends VisualGraphOperator {
  private static final long serialVersionUID = 8089073150957057614L;

  /**
   * Instance of the prefix class which handles the prefixes and the
   * name-spaces.
   */
  public Prefix prefix = null;

  public VisualGraphOperatorWithPrefix(VisualEditor<Operator> visualEditor, Prefix prefix) {
    super(visualEditor);

    this.prefix = prefix;

    this.construct();
  }
 
  public abstract VisualGraphOperatorWithPrefix newInstance(VisualEditor<Operator> visualEditor, Prefix prefix);

  public void clearAll() {
    this.prefix = new VEPrefix(true);

    this.clear();
  }

  protected Operator createOperator(Class<? extends Operator> clazz, Item content) throws Exception {
    // get some class names...
    String newClassName = clazz.getSimpleName();

    // get the chosen operator...
    Operator newOp = null;

    try {
      if(newClassName.endsWith("RDFTerm") && !(content instanceof DummyItem)) {
        newOp = clazz.getDeclaredConstructor(Prefix.class, Item.class).newInstance(this.prefix, content);
      }
      else {
        newOp = clazz.getDeclaredConstructor(Prefix.class).newInstance(this.prefix);
      }
    }
    catch(NoSuchMethodException nsme) {
      newOp = clazz.newInstance();
    }

    return newOp;
  }
}
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