org.modeshape.jcr.value.basic.AbstractValueFactory Maven / Gradle / Ivy
/*
* ModeShape (http://www.modeshape.org)
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
* See the AUTHORS.txt file in the distribution for a full listing of
* individual contributors.
*
* ModeShape is free software. Unless otherwise indicated, all code in ModeShape
* is licensed to you under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* ModeShape is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.modeshape.jcr.value.basic;
import java.io.InputStream;
import java.math.BigDecimal;
import java.net.URI;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.UUID;
import javax.jcr.RepositoryException;
import org.modeshape.common.annotation.Immutable;
import org.modeshape.common.text.TextDecoder;
import org.modeshape.common.util.CheckArg;
import org.modeshape.jcr.api.value.DateTime;
import org.modeshape.jcr.cache.NodeKey;
import org.modeshape.jcr.value.BinaryValue;
import org.modeshape.jcr.value.IoException;
import org.modeshape.jcr.value.Name;
import org.modeshape.jcr.value.Path;
import org.modeshape.jcr.value.PropertyType;
import org.modeshape.jcr.value.Reference;
import org.modeshape.jcr.value.ValueFactories;
import org.modeshape.jcr.value.ValueFactory;
import org.modeshape.jcr.value.ValueFormatException;
/**
* Abstract {@link ValueFactory}.
*
* @param the property type
*/
@Immutable
public abstract class AbstractValueFactory implements ValueFactory {
protected final TextDecoder decoder;
protected final PropertyType propertyType;
protected final ValueFactories valueFactories;
protected AbstractValueFactory( PropertyType type,
TextDecoder decoder,
ValueFactories valueFactories ) {
CheckArg.isNotNull(type, "type");
this.propertyType = type;
this.decoder = decoder != null ? decoder : DEFAULT_DECODER;
this.valueFactories = valueFactories;
}
/**
* @return stringValueFactory
*/
protected ValueFactory getStringValueFactory() {
return valueFactories.getStringFactory();
}
/**
* Get the text decoder.
*
* @return the decoder
*/
public TextDecoder getDecoder() {
return this.decoder;
}
/**
* Utility method to obtain either the supplied decoder (if not null) or this factory's {@link #getDecoder() decoder}.
*
* @param decoder the decoder, which may be null if this factory's {@link #getDecoder() is to be used}
* @return the decoder; never null
*/
protected TextDecoder getDecoder( TextDecoder decoder ) {
return decoder != null ? decoder : this.getDecoder();
}
@Override
public PropertyType getPropertyType() {
return propertyType;
}
@Override
public T create( Object value ) {
if (value == null) return null;
if (value instanceof String) return create((String)value);
if (value instanceof Integer) return create(((Integer)value).intValue());
if (value instanceof Long) return create(((Long)value).longValue());
if (value instanceof Double) return create(((Double)value).doubleValue());
if (value instanceof Float) return create(((Float)value).floatValue());
if (value instanceof Boolean) return create(((Boolean)value).booleanValue());
if (value instanceof BigDecimal) return create((BigDecimal)value);
if (value instanceof DateTime) return create((DateTime)value);
if (value instanceof Calendar) return create((Calendar)value);
if (value instanceof Date) return create((Date)value);
if (value instanceof Name) return create((Name)value);
if (value instanceof Path) return create((Path)value);
if (value instanceof Path.Segment) return create((Path.Segment)value);
if (value instanceof Reference) return create((Reference)value);
if (value instanceof NodeKey) return create((NodeKey)value);
if (value instanceof UUID) return create((UUID)value);
if (value instanceof URI) return create((URI)value);
if (value instanceof BinaryValue) return create((BinaryValue)value);
if (value instanceof javax.jcr.Binary) {
javax.jcr.Binary jcrBinary = (javax.jcr.Binary)value;
try {
return create(jcrBinary.getStream());
} catch (RepositoryException e) {
throw new RuntimeException(e);
}
}
if (value instanceof byte[]) return create((byte[])value);
if (value instanceof InputStream) return create((InputStream)value);
return create(value.toString());
}
protected abstract T[] createEmptyArray( int length );
@Override
public T[] create( BigDecimal[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( boolean[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( byte[][] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( Calendar[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( Date[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( DateTime[] values ) throws ValueFormatException {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( double[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( float[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( int[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( long[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( Name[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( Object[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( Path[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( Reference[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( String[] values,
TextDecoder decoder ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i], decoder);
}
return result;
}
@Override
public T[] create( String[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( URI[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( UUID[] values ) {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( NodeKey[] values ) throws ValueFormatException {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public T[] create( BinaryValue[] values ) throws ValueFormatException, IoException {
if (values == null) return null;
final int length = values.length;
T[] result = createEmptyArray(length);
for (int i = 0; i != length; ++i) {
result[i] = create(values[i]);
}
return result;
}
@Override
public Iterator create( Iterator values ) throws ValueFormatException, IoException {
return new ConvertingIterator(values, this);
}
@Override
public Iterable create( final Iterable valueIterable ) throws ValueFormatException, IoException {
return new Iterable() {
@Override
public Iterator iterator() {
return create(valueIterable.iterator());
}
};
}
@Override
public T create( InputStream stream, String hint ) throws ValueFormatException, IoException {
return create(stream);
}
protected static class ConvertingIterator implements Iterator {
private final Iterator delegate;
private final ValueFactory factory;
protected ConvertingIterator( Iterator delegate,
ValueFactory factory ) {
assert delegate != null;
assert factory != null;
this.delegate = delegate;
this.factory = factory;
}
@Override
public boolean hasNext() {
return this.delegate.hasNext();
}
@Override
public ValueType next() {
return factory.create(this.delegate.next());
}
@Override
public void remove() {
this.delegate.remove();
}
}
}
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