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The PDS3 Product Tools Library project supports design/generation, validation and submission of archival products to the PDS. This project consists of a library of software classes to support the development of tools to perform these functions and is designed to be utilized by developers from the Engineering Node, Discipline Nodes and the PDS community.

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// Copyright 2019, California Institute of Technology ("Caltech").
// U.S. Government sponsorship acknowledged.
//
// 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 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 Caltech nor its operating division, the Jet Propulsion
// Laboratory, 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 OWNER 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 gov.nasa.pds.tools.label;

import gov.nasa.arc.pds.tools.util.StrUtils;
import gov.nasa.pds.tools.dict.Definition;
import gov.nasa.pds.tools.dict.DictIdentifier;
import gov.nasa.pds.tools.dict.ElementDefinition;
import gov.nasa.pds.tools.dict.GroupDefinition;
import gov.nasa.pds.tools.dict.NullDefinition;
import gov.nasa.pds.tools.dict.ObjectDefinition;

import java.io.File;
import java.net.URI;

import org.antlr.runtime.Token;

/**
 * This class represents a statement in a PDS label.
 * 
 * @author pramirez
 * @author jagander
 * @version $Revision$
 * 
 */
public abstract class Statement implements Comparable {

  protected final int lineNumber;

  protected final DictIdentifier identifier;

  protected final URI sourceURI;

  protected final File sourceFile;

  protected final Label label;

  protected CommentStatement comment;

  public Statement(final Label sourceLabel, final int lineNumber,
      final DictIdentifier identifier) {
    this.label = sourceLabel;
    this.lineNumber = lineNumber;
    this.identifier = identifier;
    if (sourceLabel == null) {
      this.sourceURI = null;
      this.sourceFile = null;
    } else {
      final URI uri = sourceLabel.getLabelURI();
      if (uri != null) {
        this.sourceURI = uri;
        this.sourceFile = null;
      } else {
        this.sourceURI = null;
        this.sourceFile = sourceLabel.getLabelFile();
      }
    }
  }

  /**
   * Retrieves the label associated with this statement
   * 
   * @return label
   */
  public Label getLabel() {
    return this.label;
  }

  /**
   * Retrieves the line for this statement
   * 
   * @return The line on which the statement starts
   */
  public int getLineNumber() {
    return this.lineNumber;
  }

  /**
   * Retrieves the identifier for the statement
   * 
   * @return unique identifier
   */
  public DictIdentifier getIdentifier() {
    return this.identifier;
  }

  public URI getSourceURI() {
    return this.sourceURI;
  }

  public File getSourceFile() {
    return this.sourceFile;
  }

  public String getSourceString() {
    if (this.sourceFile != null) {
      return this.sourceFile.toString();
    }
    return this.sourceURI.toString();
  }

  // TODO: determine if multiple comments allowed for a single statement
  public void attachComment(final Token commentToken) {
    if (commentToken != null) {
      this.comment = new CommentStatement(this.label, commentToken,
          this.identifier.getId());
    }
  }

  /**
   * Returns the comment associated with statement
   * 
   * @return comment
   */
  public CommentStatement getComment() {
    return this.comment;
  }

  public int compareTo(Object o) {
    return this.getLineNumber() - ((Statement) o).getLineNumber();
  }

  protected void validateType(final DictIdentifier id,
      final Class clazz) {
    if (!id.getType().equals(clazz)) {
      throw new RuntimeException("ID type mismatch! Expected \"" //$NON-NLS-1$
          + clazz.toString() + "\" but got \"" //$NON-NLS-1$
          + id.getType().toString() + "\"."); //$NON-NLS-1$
    }
  }

  protected void validateObjectType(final DictIdentifier id) {
    validateType(id, ObjectDefinition.class);
  }

  protected void validateGroupType(final DictIdentifier id) {
    validateType(id, GroupDefinition.class);
  }

  protected void validateElementType(final DictIdentifier id) {
    validateType(id, ElementDefinition.class);
  }

  protected void validateCommentType(final DictIdentifier id) {
    validateType(id, NullDefinition.class);
  }

  protected void validatePointerType(final DictIdentifier id) {
    validateType(id, NullDefinition.class);
  }

  @SuppressWarnings("nls")
  @Override
  public String toString() {
    return this.identifier.toString() + " "
        + StrUtils.getNonNull(this.sourceFile, this.sourceURI);
  }
}
    

    

    

            

    

            



    
    






    
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