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org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeImpl Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.jackrabbit.oak.plugins.nodetype;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Maps.newTreeMap;
import static java.util.Collections.emptyList;
import static org.apache.jackrabbit.JcrConstants.JCR_HASORDERABLECHILDNODES;
import static org.apache.jackrabbit.JcrConstants.JCR_ISMIXIN;
import static org.apache.jackrabbit.JcrConstants.JCR_MIXINTYPES;
import static org.apache.jackrabbit.JcrConstants.JCR_NODETYPENAME;
import static org.apache.jackrabbit.JcrConstants.JCR_PRIMARYITEMNAME;
import static org.apache.jackrabbit.JcrConstants.JCR_PRIMARYTYPE;
import static org.apache.jackrabbit.JcrConstants.JCR_SUPERTYPES;
import static org.apache.jackrabbit.JcrConstants.JCR_UUID;
import static org.apache.jackrabbit.JcrConstants.NT_CHILDNODEDEFINITION;
import static org.apache.jackrabbit.JcrConstants.NT_PROPERTYDEFINITION;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.JCR_IS_ABSTRACT;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.JCR_IS_QUERYABLE;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_DECLARING_NODE_TYPE;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_MIXIN_TYPES;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_NAMED_CHILD_NODE_DEFINITIONS;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_NAMED_PROPERTY_DEFINITIONS;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_PRIMARY_TYPE;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_RESIDUAL_CHILD_NODE_DEFINITIONS;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_RESIDUAL_PROPERTY_DEFINITIONS;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.REP_UUID;
import static org.apache.jackrabbit.oak.plugins.nodetype.NodeTypeConstants.RESIDUAL_NAME;
import java.io.IOException;
import java.io.StringWriter;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
import javax.jcr.Value;
import javax.jcr.nodetype.ItemDefinition;
import javax.jcr.nodetype.NoSuchNodeTypeException;
import javax.jcr.nodetype.NodeDefinition;
import javax.jcr.nodetype.NodeType;
import javax.jcr.nodetype.NodeTypeDefinition;
import javax.jcr.nodetype.NodeTypeIterator;
import javax.jcr.nodetype.PropertyDefinition;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import org.apache.jackrabbit.commons.cnd.CompactNodeTypeDefWriter;
import org.apache.jackrabbit.commons.iterator.NodeTypeIteratorAdapter;
import org.apache.jackrabbit.oak.api.PropertyState;
import org.apache.jackrabbit.oak.api.Tree;
import org.apache.jackrabbit.oak.api.Type;
import org.apache.jackrabbit.oak.namepath.JcrNameParser;
import org.apache.jackrabbit.oak.namepath.JcrPathParser;
import org.apache.jackrabbit.oak.namepath.NamePathMapper;
import org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager;
import org.apache.jackrabbit.oak.plugins.nodetype.constraint.Constraints;
import org.apache.jackrabbit.oak.plugins.tree.TreeUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* [nt:nodeType]
* - jcr:nodeTypeName (NAME) protected mandatory
* - jcr:supertypes (NAME) protected multiple
* - jcr:isAbstract (BOOLEAN) protected mandatory
* - jcr:isQueryable (BOOLEAN) protected mandatory
* - jcr:isMixin (BOOLEAN) protected mandatory
* - jcr:hasOrderableChildNodes (BOOLEAN) protected mandatory
* - jcr:primaryItemName (NAME) protected
* + jcr:propertyDefinition (nt:propertyDefinition) = nt:propertyDefinition protected sns
* + jcr:childNodeDefinition (nt:childNodeDefinition) = nt:childNodeDefinition protected sns
*
*/
class NodeTypeImpl extends AbstractTypeDefinition implements NodeType {
private static final Logger log = LoggerFactory.getLogger(NodeTypeImpl.class);
private static final PropertyDefinition[] NO_PROPERTY_DEFINITIONS =
new PropertyDefinition[0];
private static final NodeDefinition[] NO_NODE_DEFINITIONS =
new NodeDefinition[0];
private static final NodeType[] NO_NODE_TYPES = new NodeType[0];
private static final String[] NO_NAMES = new String[0];
NodeTypeImpl(Tree type, NamePathMapper mapper) {
super(type, mapper);
}
private String getOakName() {
return getOakName(definition);
}
private String getOakName(Tree tree) {
PropertyState property = tree.getProperty(JCR_NODETYPENAME);
if (property != null) {
return property.getValue(Type.NAME);
} else {
return tree.getName();
}
}
//-----------------------------------------------------------< NodeType >---
@Override
public String getName() {
return mapper.getJcrName(getOakName());
}
@Override
public String[] getDeclaredSupertypeNames() {
String[] names = getNames(JCR_SUPERTYPES);
if (names != null) {
for (int i = 0; i < names.length; i++) {
names[i] = mapper.getJcrName(names[i]);
}
} else {
names = NO_NAMES;
}
return names;
}
@Override
public boolean isAbstract() {
return getBoolean(JCR_IS_ABSTRACT);
}
@Override
public boolean isMixin() {
return getBoolean(JCR_ISMIXIN);
}
@Override
public boolean hasOrderableChildNodes() {
return getBoolean(JCR_HASORDERABLECHILDNODES);
}
@Override
public boolean isQueryable() {
return getBoolean(JCR_IS_QUERYABLE);
}
@Override
public String getPrimaryItemName() {
String oakName = getName(JCR_PRIMARYITEMNAME);
if (oakName != null) {
return mapper.getJcrName(oakName);
} else {
return null;
}
}
/**
* Returns the declared property definitions in their original order.
*
* @return declared property definitions
*/
@Override @Nonnull
public PropertyDefinition[] getDeclaredPropertyDefinitions() {
Map definitions = newTreeMap();
for (Tree child : Iterables.filter(definition.getChildren(), PrimaryTypePredicate.PROPERTY_DEF_PREDICATE)) {
definitions.put(getIndex(child), new PropertyDefinitionImpl(child, this, mapper));
}
return definitions.values().toArray(NO_PROPERTY_DEFINITIONS);
}
/**
* Returns the declared child node definitions in their original order.
*
* @return declared child node definitions
*/
@Override @Nonnull
public NodeDefinition[] getDeclaredChildNodeDefinitions() {
Map definitions = newTreeMap();
for (Tree child : Iterables.filter(definition.getChildren(), PrimaryTypePredicate.CHILDNODE_DEF_PREDICATE)) {
definitions.put(getIndex(child), new NodeDefinitionImpl(child, this, mapper));
}
return definitions.values().toArray(NO_NODE_DEFINITIONS);
}
@Override
public NodeType[] getSupertypes() {
Map supertypes = Maps.newLinkedHashMap();
addSupertypes(definition, supertypes);
return supertypes.values().toArray(NO_NODE_TYPES);
}
private void addSupertypes(Tree type, Map supertypes) {
PropertyState property = type.getProperty(JCR_SUPERTYPES);
if (property != null) {
Tree root = definition.getParent();
for (String oakName : property.getValue(Type.NAMES)) {
if (!supertypes.containsKey(oakName)) {
Tree supertype = root.getChild(oakName);
checkState(supertype.exists());
supertypes.put(
oakName, new NodeTypeImpl(supertype, mapper));
addSupertypes(supertype, supertypes);
}
}
}
}
@Override
public NodeType[] getDeclaredSupertypes() {
NodeType[] supertypes = NO_NODE_TYPES;
String[] oakNames = getNames(JCR_SUPERTYPES);
if (oakNames != null && oakNames.length > 0) {
supertypes = new NodeType[oakNames.length];
Tree root = definition.getParent();
for (int i = 0; i < oakNames.length; i++) {
Tree type = root.getChild(oakNames[i]);
checkState(type.exists());
supertypes[i] = new NodeTypeImpl(type, mapper);
}
}
return supertypes;
}
@Override
public NodeTypeIterator getSubtypes() {
Map> inheritance = Maps.newHashMap();
Tree root = definition.getParent();
for (Tree child : root.getChildren()) {
String oakName = getOakName(child);
PropertyState supertypes = child.getProperty(JCR_SUPERTYPES);
if (supertypes != null) {
for (String supername : supertypes.getValue(Type.NAMES)) {
Set subtypes = inheritance.get(supername);
if (subtypes == null) {
subtypes = Sets.newHashSet();
inheritance.put(supername, subtypes);
}
subtypes.add(oakName);
}
}
}
Map subtypes = Maps.newHashMap();
addSubtypes(getOakName(), subtypes, root, inheritance);
return new NodeTypeIteratorAdapter(subtypes.values());
}
private void addSubtypes(
String typeName, Map subtypes,
Tree root, Map> inheritance) {
Set subnames = inheritance.get(typeName);
if (subnames != null) {
for (String subname : subnames) {
if (!subtypes.containsKey(subname)) {
Tree tree = root.getChild(subname);
subtypes.put(subname, new NodeTypeImpl(tree, mapper));
}
}
}
}
@Override
public NodeTypeIterator getDeclaredSubtypes() {
List subtypes = Lists.newArrayList();
String oakName = getOakName();
Tree root = definition.getParent();
for (Tree child : root.getChildren()) {
PropertyState supertypes = child.getProperty(JCR_SUPERTYPES);
if (supertypes != null) {
for (String name : supertypes.getValue(Type.NAMES)) {
if (oakName.equals(name)) {
subtypes.add(new NodeTypeImpl(child, mapper));
break;
}
}
}
}
return new NodeTypeIteratorAdapter(subtypes);
}
@Override
public boolean isNodeType(String nodeTypeName) {
String oakName = mapper.getOakNameOrNull(nodeTypeName);
return internalIsNodeType(oakName);
}
@Override
public PropertyDefinition[] getPropertyDefinitions() {
Collection definitions = internalGetPropertyDefinitions();
return definitions.toArray(new PropertyDefinition[definitions.size()]);
}
@Override
public NodeDefinition[] getChildNodeDefinitions() {
Collection definitions = internalGetChildDefinitions();
return definitions.toArray(new NodeDefinition[definitions.size()]);
}
@Override
public boolean canSetProperty(String propertyName, Value value) {
if (value == null) {
return canRemoveProperty(propertyName);
}
try {
EffectiveNodeType effective =
new EffectiveNodeType(this, getManager());
PropertyDefinition def = effective.getPropertyDefinition(
propertyName, false, value.getType(), false);
return !def.isProtected() &&
meetsTypeConstraints(value, def.getRequiredType()) &&
meetsValueConstraints(value, def.getValueConstraints());
} catch (RepositoryException e) { // TODO don't use exceptions for flow control. Use internal method in ReadOnlyNodeTypeManager instead.
log.debug(e.getMessage());
return false;
}
}
@Override
public boolean canSetProperty(String propertyName, Value[] values) {
if (values == null) {
return canRemoveProperty(propertyName);
}
try {
int type = (values.length == 0) ? PropertyType.STRING : values[0].getType();
EffectiveNodeType effective =
new EffectiveNodeType(this, getManager());
PropertyDefinition def = effective.getPropertyDefinition(
propertyName, true, type, false);
return !def.isProtected() &&
meetsTypeConstraints(values, def.getRequiredType()) &&
meetsValueConstraints(values, def.getValueConstraints());
} catch (RepositoryException e) { // TODO don't use exceptions for flow control. Use internal method in ReadOnlyNodeTypeManager instead.
log.debug(e.getMessage());
return false;
}
}
@Override
public boolean canAddChildNode(String childNodeName) {
// FIXME: properly calculate matching definition
for (NodeDefinition definition : getChildNodeDefinitions()) {
String name = definition.getName();
if (matches(childNodeName, name) || RESIDUAL_NAME.equals(name)) {
return !definition.isProtected() && definition.getDefaultPrimaryType() != null;
}
}
return false;
}
@Override
public boolean canAddChildNode(String childNodeName, String nodeTypeName) {
NodeType type;
try {
type = getManager().getNodeType(nodeTypeName);
if (type.isAbstract()) {
return false;
}
} catch (NoSuchNodeTypeException e) {
return false;
} catch (RepositoryException e) {
log.warn("Unable to access node type " + nodeTypeName, e);
return false;
}
// FIXME: properly calculate matching definition
for (NodeDefinition definition : getChildNodeDefinitions()) {
String name = definition.getName();
if (matches(childNodeName, name) || RESIDUAL_NAME.equals(name)) {
if (definition.isProtected()) {
return false;
}
for (String required : definition.getRequiredPrimaryTypeNames()) {
if (type.isNodeType(required)) {
return true;
}
}
}
}
return false;
}
@Override
public boolean canRemoveItem(String itemName) {
List definitions = Lists.newArrayList();
definitions.addAll(Arrays.asList(getChildNodeDefinitions()));
definitions.addAll(Arrays.asList(getPropertyDefinitions()));
return internalCanRemoveItem(itemName, definitions);
}
@Override
public boolean canRemoveNode(String nodeName) {
return internalCanRemoveItem(nodeName, Arrays.asList(getChildNodeDefinitions()));
}
@Override
public boolean canRemoveProperty(String propertyName) {
return internalCanRemoveItem(propertyName, Arrays.asList(getPropertyDefinitions()));
}
/**
* Returns the namespace neutral CND of the given node type definition.
* @param def the node type definition
* @return the CND
*/
private static String getCnd(NodeTypeDefinition def) {
StringWriter out = new StringWriter();
CompactNodeTypeDefWriter cndWriter = new CompactNodeTypeDefWriter(out, new CompactNodeTypeDefWriter.NamespaceMapping(){
@Override
public String getNamespaceURI(String s) {
return s;
}
}, false);
try {
cndWriter.write(def);
} catch (IOException e) {
// should never occur
log.error("Error generating CND of " + def, e);
throw new IllegalStateException(e);
}
return out.toString();
}
//-------------------------------------------------------------< Object >---
@Override
public String toString() {
return getName();
}
@Override
public boolean equals(Object o) {
return this == o || o instanceof NodeType && getCnd(this).equals(getCnd((NodeType) o));
}
@Override
public int hashCode() {
return getCnd(this).hashCode();
}
//-----------------------------------------------------------< internal >---
private boolean internalCanRemoveItem(String itemName,
Iterable definitions) {
// FIXME: should properly calculate matching definition taking residual definitions into account.
for (ItemDefinition definition : definitions) {
String name = definition.getName();
if (matches(itemName, name)) {
if (definition.isMandatory() || definition.isProtected()) {
return false;
}
}
}
return definitions.iterator().hasNext();
}
private ReadOnlyNodeTypeManager getManager() {
final Tree types = definition.getParent();
return new ReadOnlyNodeTypeManager() {
@Override @CheckForNull
protected Tree getTypes() {
return types;
}
};
}
boolean internalIsNodeType(String oakName) {
if (getOakName().equals(oakName)) {
return true;
}
for (NodeType type : getDeclaredSupertypes()) {
if (((NodeTypeImpl) type).internalIsNodeType(oakName)) {
return true;
}
}
return false;
}
Collection internalGetChildDefinitions() {
// TODO distinguish between additive and overriding node definitions. See 3.7.6.8 Item Definitions in Subtypes
Collection definitions = new ArrayList();
definitions.addAll(Arrays.asList(getDeclaredChildNodeDefinitions()));
for (NodeType type : getSupertypes()) {
definitions.addAll(Arrays.asList(type.getDeclaredChildNodeDefinitions()));
}
return definitions;
}
Collection internalGetPropertyDefinitions() {
// TODO distinguish between additive and overriding property definitions. See 3.7.6.8 Item Definitions in Subtypes
Collection definitions = new ArrayList();
definitions.addAll(Arrays.asList(getDeclaredPropertyDefinitions()));
for (NodeType type : getSupertypes()) {
definitions.addAll(Arrays.asList(type.getDeclaredPropertyDefinitions()));
}
return definitions;
}
List getDeclaredNamedPropertyDefinitions(String oakName) {
String escapedName = oakName;
if (JCR_PRIMARYTYPE.equals(oakName)) {
escapedName = REP_PRIMARY_TYPE;
} else if (JCR_MIXINTYPES.equals(oakName)) {
escapedName = REP_MIXIN_TYPES;
} else if (JCR_UUID.equals(oakName)) {
escapedName = REP_UUID;
}
return getDeclaredPropertyDefs(definition
.getChild(REP_NAMED_PROPERTY_DEFINITIONS)
.getChild(escapedName));
}
List getDeclaredResidualPropertyDefinitions() {
return getDeclaredPropertyDefs(definition
.getChild(REP_RESIDUAL_PROPERTY_DEFINITIONS));
}
List getDeclaredNamedNodeDefinitions(String oakName) {
return getDeclaredNodeDefs(definition
.getChild(REP_NAMED_CHILD_NODE_DEFINITIONS)
.getChild(oakName));
}
List getDeclaredResidualNodeDefinitions() {
return getDeclaredNodeDefs(definition
.getChild(REP_RESIDUAL_CHILD_NODE_DEFINITIONS));
}
private List getDeclaredPropertyDefs(Tree definitions) {
if (definitions.exists()) {
List list = newArrayList();
String typeName = getOakName();
for (Tree def : definitions.getChildren()) {
String declaringTypeName =
TreeUtil.getName(def, REP_DECLARING_NODE_TYPE);
if (typeName.equals(declaringTypeName)) {
list.add(new PropertyDefinitionImpl(def, this, mapper));
}
}
return list;
} else {
return emptyList();
}
}
private List getDeclaredNodeDefs(Tree defs) {
if (defs.exists()) {
List list = newArrayList();
String typeName = getOakName();
for (Tree def : defs.getChildren()) {
String declaringTypeName =
TreeUtil.getName(def, REP_DECLARING_NODE_TYPE);
if (typeName.equals(declaringTypeName)) {
list.add(new NodeDefinitionImpl(def, this, mapper));
}
}
return list;
} else {
return emptyList();
}
}
//--------------------------------------------------------------------------
private static boolean meetsTypeConstraints(Value value, int requiredType) {
try {
switch (requiredType) {
case PropertyType.STRING:
value.getString();
return true;
case PropertyType.BINARY:
value.getBinary();
return true;
case PropertyType.LONG:
value.getLong();
return true;
case PropertyType.DOUBLE:
value.getDouble();
return true;
case PropertyType.DATE:
value.getDate();
return true;
case PropertyType.BOOLEAN:
value.getBoolean();
return true;
case PropertyType.NAME: {
int type = value.getType();
return type != PropertyType.DOUBLE &&
type != PropertyType.LONG &&
type != PropertyType.BOOLEAN &&
JcrNameParser.validate(value.getString());
}
case PropertyType.PATH: {
int type = value.getType();
return type != PropertyType.DOUBLE &&
type != PropertyType.LONG &&
type != PropertyType.BOOLEAN &&
JcrPathParser.validate(value.getString());
}
case PropertyType.REFERENCE:
case PropertyType.WEAKREFERENCE:
return IdentifierManager.isValidUUID(value.getString());
case PropertyType.URI:
new URI(value.getString());
return true;
case PropertyType.DECIMAL:
value.getDecimal();
return true;
case PropertyType.UNDEFINED:
return true;
default:
log.warn("Invalid property type value: " + requiredType);
return false;
}
} catch (RepositoryException e) {
return false;
} catch (URISyntaxException e) {
return false;
}
}
private static boolean meetsTypeConstraints(Value[] values, int requiredType) {
// Constraints must be met by all values
for (Value value : values) {
if (!meetsTypeConstraints(value, requiredType)) {
return false;
}
}
return true;
}
private static boolean meetsValueConstraints(Value value, String[] constraints) {
if (constraints == null || constraints.length == 0) {
return true;
}
// Any of the constraints must be met
for (String constraint : constraints) {
if (Constraints.valueConstraint(value.getType(), constraint).apply(value)) {
return true;
}
}
return false;
}
private static boolean meetsValueConstraints(Value[] values, String[] constraints) {
if (constraints == null || constraints.length == 0) {
return true;
}
// Constraints must be met by all values
for (Value value : values) {
if (!meetsValueConstraints(value, constraints)) {
return false;
}
}
return true;
}
private static int getIndex(@Nonnull Tree tree) {
String name = tree.getName();
int i = name.lastIndexOf('[');
return (i == -1) ? 1 : Integer.valueOf(name.substring(i+1, name.lastIndexOf(']')));
}
private boolean matches(String childNodeName, String name) {
String oakChildName = mapper.getOakNameOrNull(childNodeName);
String oakName = mapper.getOakNameOrNull(name);
// TODO need a better way to handle SNS
return oakChildName != null && oakChildName.startsWith(oakName);
}
private static final class PrimaryTypePredicate implements Predicate {
private static final PrimaryTypePredicate PROPERTY_DEF_PREDICATE = new PrimaryTypePredicate(NT_PROPERTYDEFINITION);
private static final PrimaryTypePredicate CHILDNODE_DEF_PREDICATE = new PrimaryTypePredicate(NT_CHILDNODEDEFINITION);
private final String primaryTypeName;
private PrimaryTypePredicate(@Nonnull String primaryTypeName) {
this.primaryTypeName = primaryTypeName;
}
@Override
public boolean apply(Tree tree) {
return primaryTypeName.equals(TreeUtil.getPrimaryTypeName(tree));
}
}
}
