/**
* Copyright (C) cedarsoft GmbH.
*
* Licensed under the GNU General Public License version 3 (the "License")
* with Classpath Exception; you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.cedarsoft.org/gpl3ce
* (GPL 3 with Classpath Exception)
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 only, as
* published by the Free Software Foundation. cedarsoft GmbH designates this
* particular file as subject to the "Classpath" exception as provided
* by cedarsoft GmbH in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 3 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 3 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
* or visit www.cedarsoft.com if you need additional information or
* have any questions.
*/
package com.cedarsoft.serialization.test.utils;
import com.cedarsoft.serialization.Serializer;
import com.cedarsoft.test.utils.JsonUtils;
import com.cedarsoft.version.Version;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ContainerNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.node.TextNode;
import org.apache.commons.io.Charsets;
import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import org.fest.reflect.core.Reflection;
import javax.annotation.Nonnull;
import java.nio.charset.Charset;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* Abstract base class for JSON based serializers.
* <p/>
* <p/>
* Attention: it is necessary to define at least one DataPoint:
* <p/>
* <pre>@DataPoint<br/>public static final Entry<?> ENTRY1 = create(<br/> new DomainObject(),<br/> "{}" );</pre>
*
* @param <T> the type of the serialized object
*/
public abstract class AbstractJsonSerializerTest2<T> extends AbstractSerializerTest2<T> {
protected void verify( @Nonnull byte[] current, @Nonnull byte[] expectedJson ) throws Exception {
String expectedAsString = new String( expectedJson, Charsets.UTF_8 );
if ( addTypeInformation() ) {
try {
expectedAsString = addTypeInformation( expectedJson );
} catch ( Exception e ) {
System.err.println( "WARNING. Could not add type information due to " + e.getMessage() );
}
}
JsonUtils.assertJsonEquals(expectedAsString, new String(current, Charsets.UTF_8));
}
@Nonnull
public String addTypeInformation( @Nonnull byte[] expectedJson ) throws Exception {
Serializer<T,?, ?> serializer = getSerializer();
return addTypeInformation( serializer, expectedJson );
}
@Nonnull
protected static String getType( @Nonnull Serializer<?, ?, ?> serializer ) {
return Reflection.method( "getType" ).withReturnType( String.class ).in( serializer ).invoke();
}
@Nonnull
public static String addTypeInformation( @Nonnull Serializer<?, ?, ?> serializer, @Nonnull byte[] expectedJson ) throws Exception {
return addTypeInformation( getType( serializer ), serializer.getFormatVersion(), expectedJson );
}
protected boolean addTypeInformation() {
return true;
}
@Nonnull
public static String addTypeInformation( @Nonnull String type, @Nonnull Version version, @Nonnull byte[] xmlBytes ) throws Exception {
JsonNode tree = new ObjectMapper().readTree( new String( xmlBytes, Charsets.UTF_8 ) );
Map<String, JsonNode> newProps = new LinkedHashMap<String, JsonNode>();
newProps.put( "@type", new TextNode( type ) );
newProps.put( "@version", new TextNode( version.format() ) );
Iterator<Map.Entry<String, JsonNode>> nodeIterator = tree.fields();
while ( nodeIterator.hasNext() ) {
Map.Entry<String, JsonNode> jsonNode = nodeIterator.next();
newProps.put( jsonNode.getKey(), jsonNode.getValue() );
}
( ( ContainerNode ) tree ).removeAll();
( ( ObjectNode ) tree ).putAll( newProps );
return tree.toString();
}
@Override
protected void verifySerialized( @Nonnull Entry<T> entry, @Nonnull byte[] serialized ) throws Exception {
verify( serialized, entry.getExpected() );
}
@Nonnull
protected static <T> Entry<? extends T> create( @Nonnull T object, @Nonnull String expected ) {
return new Entry<T>( object, expected.getBytes() );
}
}