/*******************************************************************************
 * Copyright 2013 SAP AG
 * 
 * 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.sap.core.odata.core.edm.provider;

import com.sap.core.odata.api.edm.EdmAssociation;
import com.sap.core.odata.api.edm.EdmComplexType;
import com.sap.core.odata.api.edm.EdmEntityContainer;
import com.sap.core.odata.api.edm.EdmEntityType;
import com.sap.core.odata.api.edm.FullQualifiedName;
import com.sap.core.odata.api.edm.provider.Association;
import com.sap.core.odata.api.edm.provider.ComplexType;
import com.sap.core.odata.api.edm.provider.EdmProvider;
import com.sap.core.odata.api.edm.provider.EdmProviderAccessor;
import com.sap.core.odata.api.edm.provider.EntityContainerInfo;
import com.sap.core.odata.api.edm.provider.EntityType;
import com.sap.core.odata.api.exception.ODataException;
import com.sap.core.odata.core.edm.EdmImpl;

public class EdmImplProv extends EdmImpl implements EdmProviderAccessor {

  protected EdmProvider edmProvider;

  public EdmImplProv(final EdmProvider edmProvider) {
    super(new EdmServiceMetadataImplProv(edmProvider));
    this.edmProvider = edmProvider;
  }

  @Override
  protected EdmEntityContainer createEntityContainer(final String name) throws ODataException {
    EntityContainerInfo enitityContainerInfo = edmProvider.getEntityContainerInfo(name);
    if (enitityContainerInfo == null) {
      return null;
    }
    return new EdmEntityContainerImplProv(this, enitityContainerInfo);
  }

  @Override
  protected EdmEntityType createEntityType(final FullQualifiedName fqName) throws ODataException {
    EntityType entityType = edmProvider.getEntityType(fqName);
    if (entityType == null) {
      return null;
    }

    return new EdmEntityTypeImplProv(this, entityType, fqName.getNamespace());
  }

  @Override
  protected EdmComplexType createComplexType(final FullQualifiedName fqName) throws ODataException {
    ComplexType complexType = edmProvider.getComplexType(fqName);
    if (complexType == null) {
      return null;
    }
    return new EdmComplexTypeImplProv(this, complexType, fqName.getNamespace());
  }

  @Override
  protected EdmAssociation createAssociation(final FullQualifiedName fqName) throws ODataException {
    Association association = edmProvider.getAssociation(fqName);
    if (association == null) {
      return null;
    }
    return new EdmAssociationImplProv(this, association, fqName.getNamespace());
  }

  @Override
  public EdmProvider getEdmProvider() {
    return edmProvider;
  }
}