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/*
* 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.commons.cnd;
import java.io.IOException;
import java.io.Reader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.jcr.NamespaceRegistry;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.UnsupportedRepositoryOperationException;
import javax.jcr.ValueFactory;
import javax.jcr.Workspace;
import javax.jcr.nodetype.ConstraintViolationException;
import javax.jcr.nodetype.InvalidNodeTypeDefinitionException;
import javax.jcr.nodetype.NodeDefinitionTemplate;
import javax.jcr.nodetype.NodeType;
import javax.jcr.nodetype.NodeTypeDefinition;
import javax.jcr.nodetype.NodeTypeExistsException;
import javax.jcr.nodetype.NodeTypeIterator;
import javax.jcr.nodetype.NodeTypeManager;
import javax.jcr.nodetype.NodeTypeTemplate;
import javax.jcr.nodetype.PropertyDefinitionTemplate;
import static org.apache.jackrabbit.JcrConstants.NT_BASE;
/**
* Utility class for importing compact node type definitions.
* @see CompactNodeTypeDefReader
* @see TemplateBuilderFactory
*/
public final class CndImporter {
private CndImporter() {
super();
}
/**
* Shortcut for
*
* where wsp is the workspace of the session passed.
* @see #registerNodeTypes(Reader, String, NodeTypeManager, NamespaceRegistry, ValueFactory, boolean)
* @param cnd
* @param session the session to use for registering the node types
* @param reregisterExisting true if existing node types should be re-registered
* with those present in the cnd. false otherwise.
* @return the registered node types
*
* @throws InvalidNodeTypeDefinitionException
* @throws NodeTypeExistsException
* @throws UnsupportedRepositoryOperationException
* @throws ParseException
* @throws RepositoryException
* @throws IOException
*/
public static NodeType[] registerNodeTypes(Reader cnd, Session session, boolean reregisterExisting)
throws InvalidNodeTypeDefinitionException, NodeTypeExistsException,
UnsupportedRepositoryOperationException, ParseException, RepositoryException, IOException {
Workspace wsp = session.getWorkspace();
return registerNodeTypes(cnd, "cnd input stream", wsp.getNodeTypeManager(), wsp.getNamespaceRegistry(),
session.getValueFactory(), reregisterExisting);
}
/**
* Registers nodetypes in cnd format.
* @param cnd a reader to the cnd. The reader is closed on return.
* @param systemId a informative id of the given cnd input.
* @param nodeTypeManager the {@link NodeTypeManager} used for creating and registering the
* {@link NodeTypeTemplate}s, {@link NodeDefinitionTemplate}s and {@link PropertyDefinitionTemplate}s
* defined in the cnd.
* @param namespaceRegistry the {@link NamespaceRegistry} used for registering namespaces defined in
* the cnd.
* @param valueFactory the {@link ValueFactory} used to create
* {@link PropertyDefinitionTemplate#setDefaultValues(javax.jcr.Value[]) default value(s)}.
* @param reregisterExisting true if existing node types should be re-registered
* with those present in the cnd. false otherwise.
* @return the registered node types
*
* @throws ParseException if the cnd cannot be parsed
* @throws InvalidNodeTypeDefinitionException if a NodeTypeDefinition is invalid.
* @throws NodeTypeExistsException if reregisterExisting is false and a
* NodeTypeDefinition specifies a node type name that is already registered.
* @throws UnsupportedRepositoryOperationException if the NodeTypeManager does not
* support node type registration.
* @throws IOException if closing the cnd reader fails
* @throws RepositoryException if another error occurs.
*/
public static NodeType[] registerNodeTypes(Reader cnd, String systemId, NodeTypeManager nodeTypeManager,
NamespaceRegistry namespaceRegistry, ValueFactory valueFactory, boolean reregisterExisting)
throws ParseException, InvalidNodeTypeDefinitionException, NodeTypeExistsException,
UnsupportedRepositoryOperationException, RepositoryException, IOException {
try {
DefinitionBuilderFactory factory =
new TemplateBuilderFactory(nodeTypeManager, valueFactory, namespaceRegistry);
CompactNodeTypeDefReader cndReader =
new CompactNodeTypeDefReader(cnd, systemId, factory);
Map templates = new HashMap();
for (NodeTypeTemplate template : cndReader.getNodeTypeDefinitions()) {
templates.put(template.getName(), template);
}
List toRegister = new ArrayList(templates.size());
for (NodeTypeTemplate ntt : templates.values()) {
if (reregisterExisting || !nodeTypeManager.hasNodeType(ntt.getName())) {
ensureNtBase(ntt, templates, nodeTypeManager);
toRegister.add(ntt);
}
}
NodeTypeIterator registered = nodeTypeManager.registerNodeTypes(
toRegister.toArray(new NodeTypeTemplate[toRegister.size()]), true);
return toArray(registered);
}
finally {
cnd.close();
}
}
private static void ensureNtBase(NodeTypeTemplate ntt, Map templates,
NodeTypeManager nodeTypeManager) throws RepositoryException {
if (!ntt.isMixin() && !NT_BASE.equals(ntt.getName())) {
String[] supertypes = ntt.getDeclaredSupertypeNames();
if (supertypes.length == 0) {
ntt.setDeclaredSuperTypeNames(new String[] {NT_BASE});
} else {
// Check whether we need to add the implicit "nt:base" supertype
boolean needsNtBase = true;
for (String name : supertypes) {
NodeTypeDefinition std = templates.get(name);
if (std == null) {
std = nodeTypeManager.getNodeType(name);
}
if (std != null && !std.isMixin()) {
needsNtBase = false;
}
}
if (needsNtBase) {
String[] withNtBase = new String[supertypes.length + 1];
withNtBase[0] = NT_BASE;
System.arraycopy(supertypes, 0, withNtBase, 1, supertypes.length);
ntt.setDeclaredSuperTypeNames(withNtBase);
}
}
}
}
// -----------------------------------------------------< private >---
private static NodeType[] toArray(NodeTypeIterator nodeTypes) {
ArrayList nts = new ArrayList();
while (nodeTypes.hasNext()) {
nts.add(nodeTypes.nextNodeType());
}
return nts.toArray(new NodeType[nts.size()]);
}
}
