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Library for validating XML documents with Schematron
/**
* 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.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;
import com.phloc.commons.ValueEnforcer;
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 rule-element.
* A list of assertions tested within the context specified by the required
* context attribute. The context attribute specifies the rule context
* expression.
* NOTE: It is not an error if a rule never fires in a document. In order to
* test that a document always has some context, a new pattern should be created
* from the context of the document, with an assertion requiring the element or
* attribute.
* The icon, see and fpi attributes allow rich interfaces and documentation.
* The flag attribute allows more detailed outcomes.
* The role and subject attributes allow explicit identification of some part of
* a pattern as part of the validation outcome.
* When the rule element has the attribute abstract with a value true, then the
* rule is an abstract rule. An abstract rule shall not have a context
* attribute. An abstract rule is a list of assertions that will be invoked by
* other rules belonging to the same pattern using the extends element. Abstract
* rules provide a mechanism for reducing schema size.
*
* @author Philip Helger
*/
@NotThreadSafe
public class PSRule implements IPSElement, IPSHasID, IPSHasFlag, IPSHasForeignElements, IPSHasIncludes, IPSHasLets, IPSHasRichGroup, IPSHasLinkableGroup
{
public static final boolean DEFAULT_ABSTRACT = false;
private String m_sFlag;
private PSRichGroup m_aRich;
private PSLinkableGroup m_aLinkable;
private boolean m_bAbstract = DEFAULT_ABSTRACT;
private String m_sContext;
private String m_sID;
private final List m_aIncludes = new ArrayList ();
private final List m_aLets = new ArrayList ();
private final List m_aContent = new ArrayList ();
private Map m_aForeignAttrs;
private List m_aForeignElements;
public PSRule ()
{}
public boolean isValid (@Nonnull final InMemoryLogger aLogger)
{
// abstract rules need an ID
if (m_bAbstract && StringHelper.hasNoText (m_sID))
{
aLogger.error ("abstract has no 'id'");
return false;
}
// abstract rules may not have a context
if (m_bAbstract && StringHelper.hasText (m_sContext))
{
aLogger.error ("abstract may not have a 'context'");
return false;
}
// Non-abstract rules need a context
if (!m_bAbstract && StringHelper.hasNoText (m_sContext))
{
aLogger.error (" must have a 'context'");
return false;
}
// At least one assert, report or extends must be present
if (m_aContent.isEmpty ())
{
aLogger.error (" has no content");
return false;
}
for (final PSInclude aInclude : m_aIncludes)
if (!aInclude.isValid (aLogger))
return false;
for (final PSLet aLet : m_aLets)
if (!aLet.isValid (aLogger))
return false;
for (final IPSElement aContent : m_aContent)
if (!aContent.isValid (aLogger))
return false;
return true;
}
public boolean isMinimal ()
{
for (final PSInclude aInclude : m_aIncludes)
if (!aInclude.isMinimal ())
return false;
for (final PSLet aLet : m_aLets)
if (!aLet.isMinimal ())
return false;
for (final IPSElement aContent : m_aContent)
if (!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);
}
public void setFlag (@Nullable final String sFlag)
{
m_sFlag = sFlag;
}
@Nullable
public String getFlag ()
{
return m_sFlag;
}
public void setRich (@Nullable final PSRichGroup aRich)
{
m_aRich = aRich;
}
public boolean hasRich ()
{
return m_aRich != null;
}
@Nullable
public PSRichGroup getRich ()
{
return m_aRich;
}
@Nullable
public PSRichGroup getRichClone ()
{
return m_aRich == null ? null : m_aRich.getClone ();
}
public void setLinkable (@Nullable final PSLinkableGroup aLinkable)
{
m_aLinkable = aLinkable;
}
public boolean hasLinkable ()
{
return m_aLinkable != null;
}
@Nullable
public PSLinkableGroup getLinkable ()
{
return m_aLinkable;
}
@Nullable
public PSLinkableGroup getLinkableClone ()
{
return m_aLinkable == null ? null : m_aLinkable.getClone ();
}
/**
* @param bAbstract
* The abstract state of this rule.
*/
public void setAbstract (final boolean bAbstract)
{
m_bAbstract = bAbstract;
}
/**
* @return true if this rule is abstract, false
* otherwise. Default is {@value #DEFAULT_ABSTRACT}.
*/
public boolean isAbstract ()
{
return m_bAbstract;
}
public void setContext (@Nullable final String sContext)
{
m_sContext = sContext;
}
@Nullable
public String getContext ()
{
return m_sContext;
}
public void setID (@Nullable final String sID)
{
m_sID = sID;
}
public boolean hasID ()
{
return m_sID != null;
}
@Nullable
public String getID ()
{
return m_sID;
}
public void addInclude (@Nonnull final PSInclude aInclude)
{
ValueEnforcer.notNull (aInclude, "Include");
m_aIncludes.add (aInclude);
}
public boolean hasAnyInclude ()
{
return !m_aIncludes.isEmpty ();
}
@Nonnull
@ReturnsMutableCopy
public List getAllIncludes ()
{
return ContainerHelper.newList (m_aIncludes);
}
public void addLet (@Nonnull final PSLet aLet)
{
ValueEnforcer.notNull (aLet, "Let");
m_aLets.add (aLet);
}
public boolean hasAnyLet ()
{
return !m_aLets.isEmpty ();
}
@Nonnull
@ReturnsMutableCopy
public List getAllLets ()
{
return ContainerHelper.newList (m_aLets);
}
@Nonnull
@ReturnsMutableCopy
public Map getAllLetsAsMap ()
{
final Map ret = new LinkedHashMap ();
for (final PSLet aLet : m_aLets)
ret.put (aLet.getName (), aLet.getValue ());
return ret;
}
public void addAssertReport (@Nonnull final PSAssertReport aAssertReport)
{
ValueEnforcer.notNull (aAssertReport, "AssertReport");
m_aContent.add (aAssertReport);
}
@Nonnull
@ReturnsMutableCopy
public List getAllAssertReports ()
{
final List ret = new ArrayList ();
for (final IPSElement aElement : m_aContent)
if (aElement instanceof PSAssertReport)
ret.add ((PSAssertReport) aElement);
return ret;
}
public void addExtends (@Nonnull final PSExtends aExtends)
{
ValueEnforcer.notNull (aExtends, "Extends");
m_aContent.add (aExtends);
}
@Nonnull
@ReturnsMutableCopy
public List getAllExtends ()
{
final List ret = new ArrayList ();
for (final IPSElement aElement : m_aContent)
if (aElement instanceof PSExtends)
ret.add ((PSExtends) aElement);
return ret;
}
@Nonnegative
public int getExtendsCount ()
{
int ret = 0;
for (final IPSElement aElement : m_aContent)
if (aElement instanceof PSExtends)
++ret;
return ret;
}
public boolean hasAnyExtends ()
{
for (final IPSElement aElement : m_aContent)
if (aElement instanceof PSExtends)
return true;
return false;
}
/**
* @return A list consisting of {@link PSAssertReport} and {@link PSExtends}
* parameters
*/
@Nonnull
@ReturnsMutableCopy
public List getAllContentElements ()
{
return ContainerHelper.newList (m_aContent);
}
@Nonnull
public IMicroElement getAsMicroElement ()
{
final IMicroElement ret = new MicroElement (CSchematron.NAMESPACE_SCHEMATRON, CSchematronXML.ELEMENT_RULE);
ret.setAttribute (CSchematronXML.ATTR_FLAG, m_sFlag);
if (m_bAbstract)
ret.setAttribute (CSchematronXML.ATTR_ABSTRACT, "true");
ret.setAttribute (CSchematronXML.ATTR_CONTEXT, m_sContext);
ret.setAttribute (CSchematronXML.ATTR_ID, m_sID);
if (m_aRich != null)
m_aRich.fillMicroElement (ret);
if (m_aLinkable != null)
m_aLinkable.fillMicroElement (ret);
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 PSLet aLet : m_aLets)
ret.appendChild (aLet.getAsMicroElement ());
for (final IPSElement aContent : m_aContent)
ret.appendChild (aContent.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).appendIfNotNull ("flag", m_sFlag)
.appendIfNotNull ("rich", m_aRich)
.appendIfNotNull ("linkable", m_aLinkable)
.append ("abstract", m_bAbstract)
.appendIfNotNull ("context", m_sContext)
.appendIfNotNull ("id", m_sID)
.append ("includes", m_aIncludes)
.append ("lets", m_aLets)
.append ("content", m_aContent)
.appendIfNotNull ("foreignAttrs", m_aForeignAttrs)
.appendIfNotNull ("foreignElements", m_aForeignElements)
.toString ();
}
}
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