net.ossindex.version.impl.OrRange Maven / Gradle / Ivy

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Utility classes that help parse and compare version strings
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/**
 * Copyright (c) 2016-2017 Vor Security Inc.
 * 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  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  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 net.ossindex.version.impl;

import java.util.Iterator;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeSet;

import net.ossindex.version.IVersion;
import net.ossindex.version.IVersionRange;

/**
 * Multiple ranges ORed together. The or range allows multiple inputs (not just two)
 * since it is generally the top level operator.
 */
public class OrRange
    extends AbstractCommonRange
{
  private SortedSet ranges = new TreeSet();

  private String type;

  private boolean hasErrors = false;

  /**
   *
   */
  public OrRange(IVersionRange range1, IVersionRange range2)
  {
    ranges.add(range1);
    ranges.add(range2);
  }

  public OrRange(List results) {
    ranges.addAll(results);
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.IVersionRange#contains(net.ossindex.version.IVersion)
   */
  @Override
  public boolean contains(IVersion version)
  {
    for (IVersionRange range : ranges) {
      if (range.contains(version)) {
        return true;
      }
    }
    return false;
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.impl.IVersionRange#isAtomic()
   */
  @Override
  public boolean isDiscrete()
  {
    return false;
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.impl.IVersionRange#isSimple()
   */
  @Override
  public boolean isSimple()
  {
    return false;
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.impl.IVersionRange#getMinimum()
   */
  @Override
  public IVersion getMinimum()
  {
    Iterator it = ranges.iterator();
    IVersionRange r1 = it.next();
    IVersion min = r1.getMinimum();

    while (it.hasNext()) {
      IVersionRange r2 = it.next();
      IVersion v2 = r2.getMinimum();
      int cmp = min.compareTo(v2);
      if (cmp > 0) {
        return min = v2;
      }
    }

    return min;
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.impl.IVersionRange#getMaximum()
   */
  @Override
  public IVersion getMaximum()
  {
    Iterator it = ranges.iterator();
    IVersionRange r1 = it.next();
    IVersion max = r1.getMaximum();

    while (it.hasNext()) {
      IVersionRange r2 = it.next();
      IVersion v2 = r2.getMinimum();
      int cmp = max.compareTo(v2);
      if (cmp > 0) {
        return max = v2;
      }
    }

    return max;
  }

  public String getOperator()
  {
    return "|";
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.IVersionRange#intersects(net.ossindex.version.IVersionRange)
   */
  @Override
  public boolean intersects(IVersionRange yourRange)
  {
    for (IVersionRange range : ranges) {
      if (range.intersects(yourRange)) {
        return true;
      }
    }
    return false;
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.IVersionRange#getSimplifiedRange()
   */
  @Override
  public IVersionRange getSimplifiedRange() {
    return this;
  }

  public String getType() {
    if (type == null) {
      for (IVersionRange range : ranges) {
        type = range.getType();
        if (type != null) {
          break;
        }
      }
    }
    return type;
  }

  public void setType(String type) {
    this.type = type;
  }

  public void setHasErrors(boolean b) {
    hasErrors = b;
  }

  public boolean hasErrors() {
    if (hasErrors) {
      return true;
    }

    for (IVersionRange range : ranges) {
      if (range.hasErrors()) {
        return true;
      }
    }
    return false;
  }

  @Override
  public String toString()
  {
    StringBuilder sb = new StringBuilder();
    Iterator it = ranges.iterator();
    while (it.hasNext()) {
      IVersionRange range = it.next();
      if (!range.isDiscrete() && !range.isSimple()) {
        sb.append("(");
      }
      sb.append(range);
      if (!range.isDiscrete() && !range.isSimple()) {
        sb.append(")");
      }
      if (it.hasNext()) {
        sb.append(" | ");
      }
    }
    return sb.toString();
  }

  @Override
  public String toMavenString()
  {
    StringBuilder sb = new StringBuilder();
    Iterator it = ranges.iterator();
    while (it.hasNext()) {
      IVersionRange range = it.next();
      sb.append(range.toMavenString());
      if (it.hasNext()) {
        sb.append(",");
      }
    }
    return sb.toString();
  }

  public OrRange add(IVersionRange range) {
    ranges.add(range);
    return this;
  }

  /*
   * (non-Javadoc)
   * @see net.ossindex.version.impl.AbstractCommonRange#invert()
   */
  @Override
  public IVersionRange invert() {
    if (ranges.size() == 2) {
      IVersionRange irange1 = ranges.first().invert();
      IVersionRange irange2 = ranges.last().invert();
      return new AndRange(irange1, irange2);
    }

    throw new UnsupportedOperationException();
  }

  public int size() {
    return ranges.size();
  }

  public IVersionRange first() {
    return ranges.first();
  }

  public IVersionRange last() {
    return ranges.last();
  }
}