/*
* Copyright 1999-2010 Luca Garulli (l.garulli--at--orientechnologies.com)
*
* 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 com.orientechnologies.orient.core.serialization.serializer.string;
import com.orientechnologies.common.log.OLogManager;
import com.orientechnologies.orient.core.db.ODatabaseComplex;
import com.orientechnologies.orient.core.db.record.ODatabaseRecord;
import com.orientechnologies.orient.core.exception.OSerializationException;
import com.orientechnologies.orient.core.record.impl.ODocument;
import com.orientechnologies.orient.core.serialization.OBinaryProtocol;
import com.orientechnologies.orient.core.serialization.OSerializableStream;
import com.orientechnologies.orient.core.serialization.serializer.stream.OStreamSerializerHelper;
public class OStringSerializerAnyStreamable implements OStringSerializer {
public static final OStringSerializerAnyStreamable INSTANCE = new OStringSerializerAnyStreamable();
public static final String NAME = "st";
/**
* Re-Create any object if the class has a public constructor that accepts a String as unique parameter.
*/
public Object fromStream(final ODatabaseComplex<?> iDatabase, final String iStream) {
if (iStream == null || iStream.length() == 0)
// NULL VALUE
return null;
OSerializableStream instance = null;
int propertyPos = iStream.indexOf(':');
int pos = iStream.indexOf(OStreamSerializerHelper.SEPARATOR);
if (pos < 0 || pos > propertyPos) {
instance = new ODocument((ODatabaseRecord) iDatabase);
pos = -1;
} else {
final String className = iStream.substring(0, pos);
try {
final Class<?> clazz = Class.forName(className);
instance = (OSerializableStream) clazz.newInstance();
} catch (Exception e) {
OLogManager.instance().error(this, "Error on unmarshalling content. Class: " + className, e, OSerializationException.class);
}
}
instance.fromStream(OBinaryProtocol.string2bytes(iStream.substring(pos + 1)));
return instance;
}
/**
* Serialize the class name size + class name + object content
*
* @param iValue
*/
public StringBuilder toStream(final ODatabaseComplex<?> iDatabase, final StringBuilder iOutput, Object iValue) {
if (iValue != null) {
if (!(iValue instanceof OSerializableStream))
throw new OSerializationException("Can't serialize the object since it's not implements the OSerializableStream interface");
OSerializableStream stream = (OSerializableStream) iValue;
iOutput.append(iValue.getClass().getName());
iOutput.append(OStreamSerializerHelper.SEPARATOR);
iOutput.append(OBinaryProtocol.bytes2string(stream.toStream()));
}
return iOutput;
}
public String getName() {
return NAME;
}
}