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Library for validating XML documents with Schematron
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/**
 * Copyright (C) 2014-2017 Philip Helger (www.helger.com)
 * philip[at]helger[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.helger.schematron.pure.model;

import java.util.Map;

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

import com.helger.commons.ValueEnforcer;
import com.helger.commons.annotation.ReturnsMutableCopy;
import com.helger.commons.collection.CollectionHelper;
import com.helger.commons.collection.ext.CommonsArrayList;
import com.helger.commons.collection.ext.CommonsLinkedHashMap;
import com.helger.commons.collection.ext.ICommonsList;
import com.helger.commons.collection.ext.ICommonsOrderedMap;
import com.helger.commons.string.StringHelper;
import com.helger.commons.string.ToStringGenerator;
import com.helger.schematron.CSchematron;
import com.helger.schematron.CSchematronXML;
import com.helger.schematron.pure.errorhandler.IPSErrorHandler;
import com.helger.xml.microdom.IMicroElement;
import com.helger.xml.microdom.MicroElement;

/**
 * A single Schematron diagnostics-element.

 * A section containing individual diagnostic elements.

 * An implementation is not required to make use of this element.
 *
 * @author Philip Helger
 */
@NotThreadSafe
public class PSDiagnostics implements IPSElement, IPSOptionalElement, IPSHasForeignElements, IPSHasIncludes
{
  private final ICommonsList  m_aIncludes = new CommonsArrayList <> ();
  private final ICommonsList  m_aDiagnostics = new CommonsArrayList <> ();
  private ICommonsOrderedMap  m_aForeignAttrs;
  private ICommonsList  m_aForeignElements;

  public PSDiagnostics ()
  {}

  public boolean isValid (@Nonnull final IPSErrorHandler aErrorHandler)
  {
    for (final PSInclude aInclude : m_aIncludes)
      if (!aInclude.isValid (aErrorHandler))
        return false;
    for (final PSDiagnostic aDiagnostic : m_aDiagnostics)
      if (!aDiagnostic.isValid (aErrorHandler))
        return false;
    return true;
  }

  public void validateCompletely (@Nonnull final IPSErrorHandler aErrorHandler)
  {
    for (final PSInclude aInclude : m_aIncludes)
      aInclude.validateCompletely (aErrorHandler);
    for (final PSDiagnostic aDiagnostic : m_aDiagnostics)
      aDiagnostic.validateCompletely (aErrorHandler);
  }

  public boolean isMinimal ()
  {
    return false;
  }

  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 CommonsArrayList <> ();
    m_aForeignElements.add (aForeignElement);
  }

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

  @Nonnull
  @ReturnsMutableCopy
  public ICommonsList  getAllForeignElements ()
  {
    return new CommonsArrayList <> (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 CommonsLinkedHashMap <> ();
    m_aForeignAttrs.put (sAttrName, sAttrValue);
  }

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

  @Nonnull
  @ReturnsMutableCopy
  public ICommonsOrderedMap  getAllForeignAttributes ()
  {
    return new CommonsLinkedHashMap <> (m_aForeignAttrs);
  }

  public void addInclude (@Nonnull final PSInclude aInclude)
  {
    ValueEnforcer.notNull (aInclude, "Include");
    m_aIncludes.add (aInclude);
  }

  public boolean hasAnyInclude ()
  {
    return m_aIncludes.isNotEmpty ();
  }

  @Nonnull
  @ReturnsMutableCopy
  public ICommonsList  getAllIncludes ()
  {
    return m_aIncludes.getClone ();
  }

  public void addDiagnostic (@Nonnull final PSDiagnostic aDiagnostic)
  {
    ValueEnforcer.notNull (aDiagnostic, "Diagnostic");
    m_aDiagnostics.add (aDiagnostic);
  }

  @Nullable
  public PSDiagnostic getDiagnosticOfID (@Nullable final String sID)
  {
    if (StringHelper.hasText (sID))
      for (final PSDiagnostic aDiagnostic : m_aDiagnostics)
        if (sID.equals (aDiagnostic.getID ()))
          return aDiagnostic;
    return null;
  }

  @Nonnull
  @ReturnsMutableCopy
  public ICommonsList  getAllDiagnostics ()
  {
    return m_aDiagnostics.getClone ();
  }

  @Nonnull
  public IMicroElement getAsMicroElement ()
  {
    final IMicroElement ret = new MicroElement (CSchematron.NAMESPACE_SCHEMATRON, CSchematronXML.ELEMENT_DIAGNOSTICS);
    if (m_aForeignElements != null)
      for (final IMicroElement aForeignElement : m_aForeignElements)
        ret.appendChild (aForeignElement.getClone ());
    for (final PSInclude aInclude : m_aIncludes)
      ret.appendChild (aInclude.getAsMicroElement ());
    for (final PSDiagnostic aDiagnostic : m_aDiagnostics)
      ret.appendChild (aDiagnostic.getAsMicroElement ());
    if (m_aForeignAttrs != null)
      for (final Map.Entry  aEntry : m_aForeignAttrs.entrySet ())
        ret.setAttribute (aEntry.getKey (), aEntry.getValue ());
    return ret;
  }

  @Override
  public String toString ()
  {
    return new ToStringGenerator (this).appendIf ("includes", m_aIncludes, CollectionHelper::isNotEmpty)
                                       .appendIf ("diagnostics", m_aDiagnostics, CollectionHelper::isNotEmpty)
                                       .appendIf ("foreignAttrs", m_aForeignAttrs, CollectionHelper::isNotEmpty)
                                       .appendIf ("foreignElements", m_aForeignElements, CollectionHelper::isNotEmpty)
                                       .getToString ();
  }
}