org.modeshape.jcr.AbstractJcrProperty Maven / Gradle / Ivy
/*
* ModeShape (http://www.modeshape.org)
*
* 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 org.modeshape.jcr;
import java.math.BigDecimal;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.Set;
import javax.jcr.InvalidItemStateException;
import javax.jcr.Item;
import javax.jcr.ItemNotFoundException;
import javax.jcr.ItemVisitor;
import javax.jcr.Node;
import javax.jcr.NodeIterator;
import javax.jcr.PathNotFoundException;
import javax.jcr.Property;
import javax.jcr.RepositoryException;
import javax.jcr.ValueFormatException;
import javax.jcr.lock.Lock;
import javax.jcr.lock.LockException;
import javax.jcr.nodetype.ConstraintViolationException;
import javax.jcr.version.OnParentVersionAction;
import javax.jcr.version.VersionException;
import org.modeshape.common.annotation.Immutable;
import org.modeshape.common.annotation.NotThreadSafe;
import org.modeshape.common.util.CheckArg;
import org.modeshape.jcr.api.value.DateTime;
import org.modeshape.jcr.cache.CachedNode;
import org.modeshape.jcr.cache.MutableCachedNode;
import org.modeshape.jcr.cache.NodeKey;
import org.modeshape.jcr.cache.SessionCache;
import org.modeshape.jcr.value.BinaryValue;
import org.modeshape.jcr.value.Name;
import org.modeshape.jcr.value.Path;
import org.modeshape.jcr.value.PropertyFactory;
import org.modeshape.jcr.value.Reference;
import org.modeshape.jcr.value.ValueFactories;
import org.modeshape.jcr.value.ValueFactory;
import org.modeshape.jcr.value.basic.NodeKeyReference;
/**
* An abstract {@link Property JCR Property} implementation.
*/
@NotThreadSafe
abstract class AbstractJcrProperty extends AbstractJcrItem implements org.modeshape.jcr.api.Property, Comparable {
@Immutable
private final static class CachedDefinition {
protected final PropertyDefinitionId propDefnId;
protected final int nodeTypesVersion;
protected CachedDefinition( PropertyDefinitionId propDefnId,
int nodeTypesVersion ) {
this.propDefnId = propDefnId;
this.nodeTypesVersion = nodeTypesVersion;
}
}
private final AbstractJcrNode node;
private final Name name;
private int propertyType;
private volatile CachedDefinition cachedDefn;
AbstractJcrProperty( AbstractJcrNode node,
Name name,
int propertyType ) {
super(node.session());
assert node != null;
assert name != null;
this.node = node;
this.name = name;
this.propertyType = propertyType;
}
final void setPropertyDefinitionId( PropertyDefinitionId propDefnId,
int nodeTypesVersion ) {
this.cachedDefn = new CachedDefinition(propDefnId, nodeTypesVersion);
}
final void releasePropertyDefinitionId() {
this.cachedDefn = null;
}
/**
* Get the property definition ID.
*
* @return the cached property definition ID; never null
* @throws ItemNotFoundException if the node that contains this property doesn't exist anymore
* @throws ConstraintViolationException if no valid property definition could be found
* @throws InvalidItemStateException if the node has been removed in this session's transient state
*/
final PropertyDefinitionId propertyDefinitionId()
throws ItemNotFoundException, ConstraintViolationException, InvalidItemStateException {
CachedDefinition defn = cachedDefn;
NodeTypes nodeTypes = session.nodeTypes();
if (defn == null || nodeTypes.getVersion() > defn.nodeTypesVersion) {
Name primaryType = node.getPrimaryTypeName();
Set mixinTypes = node.getMixinTypeNames();
PropertyDefinitionId id = node.propertyDefinitionFor(property(), primaryType, mixinTypes, nodeTypes).getId();
setPropertyDefinitionId(id, nodeTypes.getVersion());
return id;
}
return defn.propDefnId;
}
/**
* Get the definition for this property.
*
* @return the cached property definition ID; never null
* @throws ItemNotFoundException if the node that contains this property doesn't exist anymore
* @throws ConstraintViolationException if no valid property definition could be found
* @throws InvalidItemStateException if the node has been removed in this session's transient state
*/
final JcrPropertyDefinition propertyDefinition()
throws ItemNotFoundException, ConstraintViolationException, InvalidItemStateException {
CachedDefinition defn = cachedDefn;
NodeTypes nodeTypes = session.nodeTypes();
if (defn == null || nodeTypes.getVersion() > defn.nodeTypesVersion) {
Name primaryType = node.getPrimaryTypeName();
Set mixinTypes = node.getMixinTypeNames();
JcrPropertyDefinition propDefn = node.propertyDefinitionFor(property(), primaryType, mixinTypes, nodeTypes);
PropertyDefinitionId id = propDefn.getId();
setPropertyDefinitionId(id, nodeTypes.getVersion());
return propDefn;
}
return nodeTypes.getPropertyDefinition(defn.propDefnId);
}
final CachedNode cachedNode() throws ItemNotFoundException, InvalidItemStateException {
return node.node();
}
final MutableCachedNode mutable() {
return node.mutable();
}
final SessionCache sessionCache() {
return node.sessionCache();
}
final PropertyFactory propertyFactory() {
return node.session().propertyFactory();
}
final org.modeshape.jcr.value.Property property() throws ItemNotFoundException, InvalidItemStateException {
return cachedNode().getProperty(name, sessionCache());
}
final JcrValue createValue( Object value ) {
return new JcrValue(session().context().getValueFactories(), this.propertyType, value);
}
final JcrValue createValue( Object value,
int propertyType ) throws ValueFormatException {
try {
return new JcrValue(session().context().getValueFactories(), propertyType, value);
} catch (org.modeshape.jcr.value.ValueFormatException e) {
throw new ValueFormatException(e);
}
}
@Override
public JcrSession getSession() {
return node.getSession();
}
/**
* Checks that this property's parent node is not already locked by another session. If the parent node is not locked or the
* parent node is locked but the lock is owned by this {@code Session}, this method completes silently. If the parent node is
* locked (either directly or as part of a deep lock from an ancestor), this method throws a {@code LockException}.
*
* @throws LockException if the parent node of this property is locked (that is, if {@code getParent().isLocked() == true &&
* getParent().getLock().getLockToken() == null}.
* @throws RepositoryException if any other error occurs
* @see Node#isLocked()
* @see Lock#getLockToken()
*/
protected final void checkForLock() throws LockException, RepositoryException {
if (this.getParent().isLocked() && !getParent().getLock().isLockOwningSession()) {
Lock parentLock = this.getParent().getLock();
if (parentLock != null && parentLock.getLockToken() == null) {
throw new LockException(JcrI18n.lockTokenNotHeld.text(node.location()));
}
}
}
/**
* Verifies that this node is either not versionable or that it is versionable but checked out.
*
* @throws VersionException if the node is versionable but is checked in and cannot be modified
* @throws RepositoryException if there is an error accessing the repository
*/
protected final void checkForCheckedOut() throws VersionException, RepositoryException {
if (!node.isCheckedOut()) {
// Node is not checked out, so changing property is only allowed if OPV of property is 'ignore' ...
JcrPropertyDefinition defn = getDefinition();
if (defn.getOnParentVersion() != OnParentVersionAction.IGNORE) {
// Can't change this property ...
String path = getParent().getPath();
throw new VersionException(JcrI18n.nodeIsCheckedIn.text(path));
}
}
}
@Override
public final void accept( ItemVisitor visitor ) throws RepositoryException {
CheckArg.isNotNull(visitor, "visitor");
checkSession();
visitor.visit(this);
}
final Name name() {
return name;
}
@Override
Path path() throws RepositoryException {
return session().pathFactory().create(node.path(), name);
}
@Override
public int getType() throws RepositoryException {
checkSession();
return propertyType;
}
@Override
public final JcrPropertyDefinition getDefinition() throws RepositoryException {
checkSession();
return propertyDefinition();
}
@Override
public final String getName() {
return name.getString(namespaces());
}
@Override
public final AbstractJcrNode getParent() {
return node;
}
@Override
public final String getPath() throws RepositoryException {
return path().getString(namespaces());
}
@Override
public String getLocalName() {
return name.getLocalName();
}
@Override
public String getNamespaceURI() {
return name.getNamespaceUri();
}
@Override
public final boolean isModified() {
try {
checkSession();
CachedNode node = cachedNode();
return node instanceof MutableCachedNode && ((MutableCachedNode)node).isPropertyModified(sessionCache(), name);
} catch (RepositoryException re) {
throw new IllegalStateException(re);
}
}
@Override
public final boolean isNew() {
try {
checkSession();
CachedNode node = cachedNode();
return node instanceof MutableCachedNode && ((MutableCachedNode)node).isPropertyNew(sessionCache(), name);
} catch (RepositoryException re) {
throw new IllegalStateException(re);
}
}
@Override
public final boolean isNode() {
return false;
}
@Override
public final boolean isSame( Item otherItem ) throws RepositoryException {
checkSession();
if (otherItem instanceof Property) {
Property otherProperty = (Property)otherItem;
// The nodes that own the properties must be the same ...
if (!getParent().isSame(otherProperty.getParent())) return false;
// The properties must have the same name ...
return getName().equals(otherProperty.getName());
}
return false;
}
@Override
public void refresh( boolean keepChanges ) {
throw new UnsupportedOperationException();
}
@Override
public void remove() throws VersionException, LockException, ConstraintViolationException, RepositoryException {
checkSession();
checkNotProtected();
checkForLock();
checkForCheckedOut();
session.checkPermission(this, ModeShapePermissions.REMOVE);
AbstractJcrNode parentNode = getParent();
if (parentNode.isLocked()) {
Lock parentLock = parentNode.getLock();
if (parentLock != null && !parentLock.isLockOwningSession()) {
throw new LockException(JcrI18n.lockTokenNotHeld.text(getPath()));
}
}
if (!parentNode.isCheckedOut()) {
throw new VersionException(JcrI18n.nodeIsCheckedIn.text(getPath()));
}
node.removeProperty(this);
}
private void checkNotProtected() throws RepositoryException {
if (this.getDefinition().isProtected()) {
throw new ConstraintViolationException(JcrI18n.propertyIsProtected.text(getPath()));
}
}
@Override
public abstract JcrValue[] getValues() throws ValueFormatException, RepositoryException;
@Override
public abstract JcrValue getValue() throws ValueFormatException, RepositoryException;
@SuppressWarnings( "deprecation" )
@Override
public void save() throws RepositoryException {
checkSession();
// This is not a correct implementation, but it's good enough to work around some TCK requirements for version tests
// Plus, Item.save() has been removed from the JCR 2.0 spec (and deprecated in JCR 2.0's Java API).
getParent().save();
}
@Override
public int compareTo( org.modeshape.jcr.api.Property that ) {
if (that == this) return 0;
try {
return this.getName().compareTo(that.getName());
} catch (RepositoryException e) {
throw new RuntimeException(e);
}
}
protected Node valueToNode( Object value ) throws RepositoryException {
ValueFactories factories = context().getValueFactories();
try {
if (value instanceof Reference) {
NodeKey key = null;
if (value instanceof NodeKeyReference) {
// REFERENCE and WEAKREFERENCE values are node keys ...
key = ((NodeKeyReference)value).getNodeKey();
} else {
throw new IllegalArgumentException("Unknown reference type: " + value.getClass().getSimpleName());
}
return session().node(key, null);
}
// STRING, PATH and NAME values will be convertable to a Path object ...
Path path = factories.getPathFactory().create(value);
return path.isAbsolute() ? session().node(path) : session().node(getParent().node(), path);
} catch (org.modeshape.jcr.value.ValueFormatException e) {
throw new ValueFormatException(e.getMessage(), e);
}
catch (PathNotFoundException pathNotFound) {
//expected by the TCK
throw new ItemNotFoundException(pathNotFound.getMessage(), pathNotFound);
}
}
@Override
public String toString() {
ValueFactory stringFactory = session().context().getValueFactories().getStringFactory();
StringBuilder sb = new StringBuilder();
try {
org.modeshape.jcr.value.Property property = cachedNode().getProperty(name, sessionCache());
sb.append(getName()).append('=');
if (isMultiple()) {
sb.append('[');
Iterator iter = property.iterator();
while (iter.hasNext()) {
Object value = iter.next();
appendValueToString(stringFactory, sb, value);
if (iter.hasNext()) sb.append(',');
}
sb.append(']');
} else {
Object value = property.getFirstValue();
appendValueToString(stringFactory, sb, value);
}
} catch (RepositoryException e) {
// The node likely does not exist ...
sb.append(" on deleted node ").append(node.key());
}
return sb.toString();
}
private void appendValueToString( ValueFactory stringFactory,
StringBuilder sb,
Object value ) {
if (value instanceof javax.jcr.Binary) {
sb.append("**binary-value-not-shown**");
} else {
sb.append(stringFactory.create(value));
}
}
@Override
public T getAs( Class type,
int index ) throws IndexOutOfBoundsException, ValueFormatException, RepositoryException {
checkSession();
Object value = property().getValue(index);
Object convertedValue = null;
try {
if (String.class.equals(type)) {
convertedValue = context().getValueFactories().getStringFactory().create(value);
} else if (Long.class.equals(type)) {
convertedValue = context().getValueFactories().getLongFactory().create(value);
} else if (Boolean.class.equals(type)) {
convertedValue = context().getValueFactories().getBooleanFactory().create(value);
} else if (Date.class.equals(type)) {
Calendar calendar = context().getValueFactories().getDateFactory().create(value).toCalendar();
convertedValue = calendar.getTime();
} else if (Calendar.class.equals(type)) {
convertedValue = context().getValueFactories().getDateFactory().create(value).toCalendar();
} else if (DateTime.class.equals(type)) {
convertedValue = context().getValueFactories().getDateFactory().create(value);
} else if (Double.class.equals(type)) {
convertedValue = context().getValueFactories().getDoubleFactory().create(value);
} else if (BigDecimal.class.equals(type)) {
convertedValue = context().getValueFactories().getDecimalFactory().create(value);
} else if (java.io.InputStream.class.equals(type)) {
BinaryValue binary = context().getValueFactories().getBinaryFactory().create(value);
convertedValue = binary.getStream();
} else if (javax.jcr.Binary.class.isAssignableFrom(type)) {
convertedValue = context().getValueFactories().getBinaryFactory().create(value);
} else if (Node.class.equals(type)) {
convertedValue = valueToNode(value);
} else if (NodeIterator.class.equals(type)) {
convertedValue = new JcrSingleNodeIterator((AbstractJcrNode)getNode());
} else {
throw new ValueFormatException(JcrI18n.unableToConvertPropertyValueAtIndexToType.text(getPath(), index, type));
}
} catch (org.modeshape.jcr.value.ValueFormatException e) {
throw new ValueFormatException(e);
}
return type.cast(convertedValue);
}
}
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