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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.core.message.internal;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.core.exception.OseeStateException;
import org.eclipse.osee.framework.core.translation.IDataTranslationService;
import org.eclipse.osee.framework.core.translation.ITranslator;
import org.eclipse.osee.framework.core.translation.ITranslatorId;
import org.eclipse.osee.framework.core.util.Conditions;
import org.eclipse.osee.framework.jdk.core.type.PropertyStore;
/**
* @author Roberto E. Escobar
*/
public class DataTranslationService implements IDataTranslationService {
private final Map<ITranslatorId, ITranslator<?>> translators;
public DataTranslationService() {
this.translators = new HashMap<ITranslatorId, ITranslator<?>>();
}
@SuppressWarnings("unchecked")
@Override
public <T> T convert(PropertyStore propertyStore, ITranslatorId txId) throws OseeCoreException {
Conditions.checkNotNull(txId, "translator Id");
T object = null;
if (propertyStore != null && !propertyStore.isEmpty()) {
ITranslator<?> translator = getTranslator(txId);
object = (T) translator.convert(propertyStore);
}
return object;
}
@SuppressWarnings("unchecked")
@Override
public <T> PropertyStore convert(T object, ITranslatorId txId) throws OseeCoreException {
PropertyStore propertyStore = null;
if (object == null) {
propertyStore = new PropertyStore();
} else {
ITranslator<T> translator = (ITranslator<T>) getTranslator(txId);
propertyStore = translator.convert(object);
}
return propertyStore;
}
@Override
public ITranslator<?> getTranslator(ITranslatorId txId) throws OseeCoreException {
Conditions.checkNotNull(txId, "translator Id");
ITranslator<?> toReturn = translators.get(txId);
if (toReturn == null) {
throw new OseeStateException(String.format("Unable to find a match for translator id [%s]", txId));
}
return toReturn;
}
@Override
public boolean addTranslator(ITranslator<?> translator, ITranslatorId txId) throws OseeCoreException {
Conditions.checkNotNull(txId, "translator Id");
Conditions.checkNotNull(translator, "translator");
boolean wasAdded = false;
if (!translators.containsKey(txId)) {
translators.put(txId, translator);
wasAdded = true;
}
return wasAdded;
}
@Override
public boolean removeTranslator(ITranslatorId txId) throws OseeCoreException {
Conditions.checkNotNull(txId, "translator Id");
return translators.remove(txId) != null;
}
@Override
public Collection<ITranslatorId> getSupportedClasses() {
return new HashSet<ITranslatorId>(translators.keySet());
}
@Override
public <T> T convert(InputStream inputStream, ITranslatorId txId) throws OseeCoreException {
Conditions.checkNotNull(inputStream, "inputStream");
Conditions.checkNotNull(txId, "translator Id");
T toReturn = null;
PropertyStore propertyStore = new PropertyStore();
try {
propertyStore.load(inputStream);
toReturn = convert(propertyStore, txId);
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
return toReturn;
}
@Override
public <T> InputStream convertToStream(T object, ITranslatorId txId) throws OseeCoreException {
PropertyStore propertyStore = convert(object, txId);
InputStream inputStream = null;
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
try {
propertyStore.save(buffer);
inputStream = new ByteArrayInputStream(buffer.toByteArray());
} catch (Exception ex) {
OseeExceptions.wrapAndThrow(ex);
}
return inputStream;
}
}
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