Package org.teiid.adminapi.impl

Source Code of org.teiid.adminapi.impl.TransactionMetadataMapper

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* regarding copyright ownership.  Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it 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.
*
* This library 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 library; if not, write to the Free Software
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package org.teiid.adminapi.impl;

import java.lang.reflect.Type;

import org.jboss.metatype.api.types.CompositeMetaType;
import org.jboss.metatype.api.types.MetaType;
import org.jboss.metatype.api.types.SimpleMetaType;
import org.jboss.metatype.api.values.CompositeValue;
import org.jboss.metatype.api.values.CompositeValueSupport;
import org.jboss.metatype.api.values.MetaValue;
import org.jboss.metatype.api.values.MetaValueFactory;
import org.jboss.metatype.api.values.SimpleValueSupport;
import org.jboss.metatype.plugins.types.MutableCompositeMetaType;
import org.jboss.metatype.spi.values.MetaMapper;

public class TransactionMetadataMapper extends MetaMapper<TransactionMetadata> {
  private static final String ID = "id"; //$NON-NLS-1$
  private static final String SCOPE = "scope"; //$NON-NLS-1$
  private static final String CREATED_TIME = "createdTime"; //$NON-NLS-1$
  private static final String ASSOCIATED_SESSION = "associatedSession"; //$NON-NLS-1$
  private static final MutableCompositeMetaType metaType;
  private static final MetaValueFactory metaValueFactory = MetaValueFactory.getInstance();
 
  static {
    metaType = new MutableCompositeMetaType(TransactionMetadata.class.getName(), "The Transaction domain meta data"); //$NON-NLS-1$
    metaType.addItem(ASSOCIATED_SESSION, ASSOCIATED_SESSION, SimpleMetaType.STRING);
    metaType.addItem(CREATED_TIME, CREATED_TIME, SimpleMetaType.LONG_PRIMITIVE);
    metaType.addItem(SCOPE, SCOPE, SimpleMetaType.STRING);
    metaType.addItem(ID, ID, SimpleMetaType.STRING);
    metaType.freeze();
  }
 
  @Override
  public Type mapToType() {
    return TransactionMetadata.class;
  }
 
  @Override
  public MetaType getMetaType() {
    return metaType;
  }
 
  @Override
  public MetaValue createMetaValue(MetaType metaType, TransactionMetadata object) {
    if (object == null)
      return null;
    if (metaType instanceof CompositeMetaType) {
      CompositeMetaType composite = (CompositeMetaType) metaType;
      CompositeValueSupport transaction = new CompositeValueSupport(composite);
     
      transaction.set(ASSOCIATED_SESSION, SimpleValueSupport.wrap(object.getAssociatedSession()));
      transaction.set(CREATED_TIME, SimpleValueSupport.wrap(object.getCreatedTime()));
      transaction.set(SCOPE, SimpleValueSupport.wrap(object.getScope()));
      transaction.set(ID, SimpleValueSupport.wrap(object.getId()));
     
      return transaction;
    }
    throw new IllegalArgumentException("Cannot convert TransactionMetadata " + object); //$NON-NLS-1$
  }

  @Override
  public TransactionMetadata unwrapMetaValue(MetaValue metaValue) {
    if (metaValue == null)
      return null;

    if (metaValue instanceof CompositeValue) {
      CompositeValue compositeValue = (CompositeValue) metaValue;
     
      TransactionMetadata transaction = new TransactionMetadata();
      transaction.setAssociatedSession((String) metaValueFactory.unwrap(compositeValue.get(ASSOCIATED_SESSION)));
      transaction.setCreatedTime((Long) metaValueFactory.unwrap(compositeValue.get(CREATED_TIME)));
      transaction.setScope((String) metaValueFactory.unwrap(compositeValue.get(SCOPE)));
      transaction.setId((String) metaValueFactory.unwrap(compositeValue.get(ID)));
      return transaction;
    }
    throw new IllegalStateException("Unable to unwrap TransactionMetadata " + metaValue); //$NON-NLS-1$
  }
}
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