/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.ambari.view.pig.resources.udf;
import com.google.inject.Inject;
import org.apache.ambari.view.*;
import org.apache.ambari.view.pig.persistence.utils.ItemNotFound;
import org.apache.ambari.view.pig.persistence.utils.OnlyOwnersFilteringStrategy;
import org.apache.ambari.view.pig.resources.PersonalCRUDResourceManager;
import org.apache.ambari.view.pig.resources.udf.models.UDF;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.InvocationTargetException;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* Resource provider for UDFs
*/
public class UDFResourceProvider implements ResourceProvider<UDF> {
@Inject
ViewContext context;
protected UDFResourceManager resourceManager = null;
protected final static Logger LOG =
LoggerFactory.getLogger(UDFResourceProvider.class);
protected synchronized PersonalCRUDResourceManager<UDF> getResourceManager() {
if (resourceManager == null) {
resourceManager = new UDFResourceManager(context);
}
return resourceManager;
}
@Override
public UDF getResource(String resourceId, Set<String> properties) throws SystemException, NoSuchResourceException, UnsupportedPropertyException {
try {
return getResourceManager().read(resourceId);
} catch (ItemNotFound itemNotFound) {
throw new NoSuchResourceException(resourceId);
}
}
@Override
public Set<UDF> getResources(ReadRequest readRequest) throws SystemException, NoSuchResourceException, UnsupportedPropertyException {
return new HashSet<UDF>(getResourceManager().readAll(
new OnlyOwnersFilteringStrategy(this.context.getUsername())));
}
@Override
public void createResource(String s, Map<String, Object> stringObjectMap) throws SystemException, ResourceAlreadyExistsException, NoSuchResourceException, UnsupportedPropertyException {
UDF udf = null;
try {
udf = new UDF(stringObjectMap);
} catch (InvocationTargetException e) {
throw new SystemException("error on creating resource", e);
} catch (IllegalAccessException e) {
throw new SystemException("error on creating resource", e);
}
getResourceManager().create(udf);
}
@Override
public boolean updateResource(String resourceId, Map<String, Object> stringObjectMap) throws SystemException, NoSuchResourceException, UnsupportedPropertyException {
UDF udf = null;
try {
udf = new UDF(stringObjectMap);
} catch (InvocationTargetException e) {
throw new SystemException("error on updating resource", e);
} catch (IllegalAccessException e) {
throw new SystemException("error on updating resource", e);
}
try {
getResourceManager().update(udf, resourceId);
} catch (ItemNotFound itemNotFound) {
throw new NoSuchResourceException(resourceId);
}
return true;
}
@Override
public boolean deleteResource(String resourceId) throws SystemException, NoSuchResourceException, UnsupportedPropertyException {
try {
getResourceManager().delete(resourceId);
} catch (ItemNotFound itemNotFound) {
throw new NoSuchResourceException(resourceId);
}
return true;
}
}