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    /**
 * Copyright (C) 2014 phloc systems
 * http://www.phloc.com
 * office[at]phloc[dot]com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.phloc.schematron.pure.model;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;

import com.phloc.commons.ValueEnforcer;
import com.phloc.commons.annotations.Nonempty;
import com.phloc.commons.annotations.ReturnsMutableCopy;
import com.phloc.commons.collections.ContainerHelper;
import com.phloc.commons.log.InMemoryLogger;
import com.phloc.commons.microdom.IMicroElement;
import com.phloc.commons.microdom.impl.MicroElement;
import com.phloc.commons.string.StringHelper;
import com.phloc.commons.string.ToStringGenerator;
import com.phloc.schematron.CSchematron;
import com.phloc.schematron.CSchematronXML;

/**
 * A single Schematron active-element.
    
 * The required pattern attribute is a reference to a pattern that is active in
 * the current phase.
    
 * {@link PSActive} elements are only references from {@link PSPhase} elements.
 *
 * @author Philip Helger
 */
@NotThreadSafe
public class PSActive implements IPSClonableElement , IPSHasForeignElements, IPSHasMixedContent
{
  private String m_sPattern;
  private final List  m_aContent = new ArrayList  ();
  private Map  m_aForeignAttrs;
  private List  m_aForeignElements;

  public PSActive ()
  {}

  public boolean isValid (@Nonnull final InMemoryLogger aLogger)
  {
    for (final Object aContent : m_aContent)
      if (aContent instanceof IPSElement)
        if (!((IPSElement) aContent).isValid (aLogger))
          return false;
    if (StringHelper.hasNoText (m_sPattern))
    {
      aLogger.error (" has no 'pattern'");
      return false;
    }
    return true;
  }

  public boolean isMinimal ()
  {
    for (final Object aContent : m_aContent)
      if (aContent instanceof IPSElement)
        if (!((IPSElement) aContent).isMinimal ())
          return false;
    return true;
  }

  public void addForeignElement (@Nonnull final IMicroElement aForeignElement)
  {
    ValueEnforcer.notNull (aForeignElement, "ForeignElement");
    if (aForeignElement.hasParent ())
      throw new IllegalArgumentException ("ForeignElement already has a parent!");
    if (m_aForeignElements == null)
      m_aForeignElements = new ArrayList  ();
    m_aForeignElements.add (aForeignElement);
  }

  public void addForeignElements (@Nonnull final List  aForeignElements)
  {
    ValueEnforcer.notNull (aForeignElements, "ForeignElements");
    for (final IMicroElement aForeignElement : aForeignElements)
      addForeignElement (aForeignElement);
  }

  public boolean hasForeignElements ()
  {
    return m_aForeignElements != null && !m_aForeignElements.isEmpty ();
  }

  @Nonnull
  @ReturnsMutableCopy
  public List  getAllForeignElements ()
  {
    return ContainerHelper.newList (m_aForeignElements);
  }

  public void addForeignAttribute (@Nonnull final String sAttrName, @Nonnull final String sAttrValue)
  {
    ValueEnforcer.notNull (sAttrName, "AttrName");
    ValueEnforcer.notNull (sAttrValue, "AttrValue");
    if (m_aForeignAttrs == null)
      m_aForeignAttrs = new LinkedHashMap  ();
    m_aForeignAttrs.put (sAttrName, sAttrValue);
  }

  public void addForeignAttributes (@Nonnull final Map  aForeignAttrs)
  {
    ValueEnforcer.notNull (aForeignAttrs, "ForeignAttrs");
    for (final Map.Entry  aEntry : aForeignAttrs.entrySet ())
      addForeignAttribute (aEntry.getKey (), aEntry.getValue ());
  }

  public boolean hasForeignAttributes ()
  {
    return m_aForeignAttrs != null && !m_aForeignAttrs.isEmpty ();
  }

  @Nonnull
  @ReturnsMutableCopy
  public Map  getAllForeignAttributes ()
  {
    return ContainerHelper.newOrderedMap (m_aForeignAttrs);
  }

  /**
   * @param sPattern
   *        The ID of the pattern to set active.
   */
  public void setPattern (@Nullable final String sPattern)
  {
    m_sPattern = sPattern;
  }

  /**
   * @return ID of the {@link PSPattern} to be marked active. May be
   *         null.
   */
  @Nullable
  public String getPattern ()
  {
    return m_sPattern;
  }

  public void addText (@Nonnull @Nonempty final String sText)
  {
    ValueEnforcer.notEmpty (sText, "Text");
    m_aContent.add (sText);
  }

  public boolean hasAnyText ()
  {
    for (final Object aElement : m_aContent)
      if (aElement instanceof String)
        return true;
    return false;
  }

  @Nonnull
  @ReturnsMutableCopy
  public List  getAllTexts ()
  {
    final List  ret = new ArrayList  ();
    for (final Object aElement : m_aContent)
      if (aElement instanceof String)
        ret.add ((String) aElement);
    return ret;
  }

  public void addDir (@Nonnull final PSDir aDir)
  {
    ValueEnforcer.notNull (aDir, "Dir");
    m_aContent.add (aDir);
  }

  @Nonnull
  @ReturnsMutableCopy
  public List  getAllDirs ()
  {
    final List  ret = new ArrayList  ();
    for (final Object aElement : m_aContent)
      if (aElement instanceof PSDir)
        ret.add ((PSDir) aElement);
    return ret;
  }

  public void addEmph (@Nonnull final PSEmph aEmph)
  {
    ValueEnforcer.notNull (aEmph, "Emph");
    m_aContent.add (aEmph);
  }

  @Nonnull
  @ReturnsMutableCopy
  public List  getAllEmphs ()
  {
    final List  ret = new ArrayList  ();
    for (final Object aElement : m_aContent)
      if (aElement instanceof PSEmph)
        ret.add ((PSEmph) aElement);
    return ret;
  }

  public void addSpan (@Nonnull final PSSpan aSpan)
  {
    ValueEnforcer.notNull (aSpan, "Span");
    m_aContent.add (aSpan);
  }

  @Nonnull
  @ReturnsMutableCopy
  public List  getAllSpans ()
  {
    final List  ret = new ArrayList  ();
    for (final Object aElement : m_aContent)
      if (aElement instanceof PSSpan)
        ret.add ((PSSpan) aElement);
    return ret;
  }

  /**
   * @return A list of {@link String}, {@link PSDir}, {@link PSEmph} and
   *         {@link PSSpan} elements.
   */
  @Nonnull
  @ReturnsMutableCopy
  public List  getAllContentElements ()
  {
    return ContainerHelper.newList (m_aContent);
  }

  @Nonnull
  public IMicroElement getAsMicroElement ()
  {
    final IMicroElement ret = new MicroElement (CSchematron.NAMESPACE_SCHEMATRON, CSchematronXML.ELEMENT_ACTIVE);
    ret.setAttribute (CSchematronXML.ATTR_PATTERN, m_sPattern);
    if (m_aForeignElements != null)
      for (final IMicroElement aForeignElement : m_aForeignElements)
        ret.appendChild (aForeignElement.getClone ());
    for (final Object aContent : m_aContent)
      if (aContent instanceof String)
        ret.appendText ((String) aContent);
      else
        ret.appendChild (((IPSElement) aContent).getAsMicroElement ());
    if (m_aForeignAttrs != null)
      for (final Map.Entry  aEntry : m_aForeignAttrs.entrySet ())
        ret.setAttribute (aEntry.getKey (), aEntry.getValue ());
    return ret;
  }

  @Nonnull
  public PSActive getClone ()
  {
    final PSActive ret = new PSActive ();
    ret.setPattern (m_sPattern);
    for (final Object aContent : m_aContent)
    {
      if (aContent instanceof String)
        ret.addText ((String) aContent);
      else
        if (aContent instanceof PSDir)
          ret.addDir (((PSDir) aContent).getClone ());
        else
          if (aContent instanceof PSEmph)
            ret.addEmph (((PSEmph) aContent).getClone ());
          else
            if (aContent instanceof PSSpan)
              ret.addSpan (((PSSpan) aContent).getClone ());
    }
    if (hasForeignElements ())
      ret.addForeignElements (m_aForeignElements);
    if (hasForeignAttributes ())
      ret.addForeignAttributes (m_aForeignAttrs);
    return ret;
  }

  @Override
  public String toString ()
  {
    return new ToStringGenerator (this).appendIfNotNull ("pattern", m_sPattern)
                                       .append ("content", m_aContent)
                                       .appendIfNotNull ("foreignAttrs", m_aForeignAttrs)
                                       .appendIfNotNull ("foreignElements", m_aForeignElements)
                                       .toString ();
  }
}
    
    
    
    

    




    
    
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