/*
* 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.isis.core.metamodel.facets.value.clobs;
import javax.activation.MimeType;
import javax.activation.MimeTypeParseException;
import org.apache.isis.applib.adapters.DefaultsProvider;
import org.apache.isis.applib.adapters.EncoderDecoder;
import org.apache.isis.applib.adapters.Parser;
import org.apache.isis.applib.value.Clob;
import org.apache.isis.core.metamodel.facetapi.Facet;
import org.apache.isis.core.metamodel.facetapi.FacetHolder;
import org.apache.isis.core.metamodel.facets.object.value.vsp.ValueSemanticsProviderAndFacetAbstract;
import org.apache.isis.core.metamodel.services.ServicesInjector;
public class ClobValueSemanticsProvider extends ValueSemanticsProviderAndFacetAbstract<Clob> implements ClobValueFacet {
private static final int TYPICAL_LENGTH = 0;
private static Class<? extends Facet> type() {
return ClobValueFacet.class;
}
private static final Clob DEFAULT_VALUE = null;
/**
* Required because implementation of {@link Parser} and
* {@link EncoderDecoder}.
*/
public ClobValueSemanticsProvider() {
this(null, null);
}
public ClobValueSemanticsProvider(final FacetHolder holder, final ServicesInjector context) {
super(type(), holder, Clob.class, TYPICAL_LENGTH, null, Immutability.IMMUTABLE, EqualByContent.NOT_HONOURED, DEFAULT_VALUE, context);
}
@Override
public String titleString(final Object object) {
return object != null? ((Clob)object).getName(): "[null]";
}
@Override
public String titleStringWithMask(final Object value, final String usingMask) {
return titleString(value);
}
// //////////////////////////////////////////////////////////////////
// Parser
// //////////////////////////////////////////////////////////////////
@Override
public Parser<Clob> getParser() {
return null;
}
// //////////////////////////////////////////////////////////////////
// DefaultsProvider
// //////////////////////////////////////////////////////////////////
@Override
public DefaultsProvider<Clob> getDefaultsProvider() {
return null;
}
// //////////////////////////////////////////////////////////////////
// EncoderDecoder
// //////////////////////////////////////////////////////////////////
@Override
protected String doEncode(final Object object) {
Clob clob = (Clob)object;
return clob.getName() + ":" + clob.getMimeType().getBaseType() + ":" + clob.getChars();
}
@Override
protected Clob doRestore(final String data) {
final int colonIdx = data.indexOf(':');
final String name = data.substring(0, colonIdx);
final int colon2Idx = data.indexOf(":", colonIdx+1);
final String mimeTypeBase = data.substring(colonIdx+1, colon2Idx);
final CharSequence chars = data.substring(colon2Idx+1);
try {
return new Clob(name, new MimeType(mimeTypeBase), chars);
} catch (MimeTypeParseException e) {
throw new RuntimeException(e);
}
}
// /////// toString ///////
@Override
public String toString() {
return "ClobValueSemanticsProvider";
}
}