/**
* 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.server.controller.internal;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.StaticallyInject;
import org.apache.ambari.server.controller.AmbariManagementController;
import org.apache.ambari.server.controller.StackVersionRequest;
import org.apache.ambari.server.controller.StackVersionResponse;
import org.apache.ambari.server.controller.spi.NoSuchParentResourceException;
import org.apache.ambari.server.controller.spi.NoSuchResourceException;
import org.apache.ambari.server.controller.spi.Predicate;
import org.apache.ambari.server.controller.spi.Request;
import org.apache.ambari.server.controller.spi.Resource;
import org.apache.ambari.server.controller.spi.Resource.Type;
import org.apache.ambari.server.controller.spi.SystemException;
import org.apache.ambari.server.controller.spi.UnsupportedPropertyException;
import org.apache.ambari.server.controller.utilities.PropertyHelper;
import org.apache.ambari.server.state.kerberos.KerberosDescriptor;
import org.apache.ambari.server.state.kerberos.KerberosDescriptorFactory;
import org.apache.ambari.server.state.kerberos.KerberosServiceDescriptor;
import org.apache.ambari.server.state.kerberos.KerberosServiceDescriptorFactory;
import com.google.inject.Inject;
@StaticallyInject
public class StackVersionResourceProvider extends ReadOnlyResourceProvider {
public static final String STACK_VERSION_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "stack_version");
public static final String STACK_NAME_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "stack_name");
public static final String STACK_MIN_VERSION_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "min_upgrade_version");
public static final String STACK_ACTIVE_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "active");
public static final String STACK_VALID_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "valid");
public static final String STACK_ERROR_SET = PropertyHelper.getPropertyId("Versions", "stack-errors");
public static final String STACK_CONFIG_TYPES = PropertyHelper.getPropertyId("Versions", "config_types");
public static final String STACK_PARENT_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "parent_stack_version");
public static final String UPGRADE_PACKS_PROPERTY_ID = PropertyHelper.getPropertyId("Versions", "upgrade_packs");
public static final String STACK_MIN_JDK = PropertyHelper.getPropertyId("Versions", "min_jdk");
public static final String STACK_MAX_JDK = PropertyHelper.getPropertyId("Versions", "max_jdk");
private static Set<String> pkPropertyIds = new HashSet<>(
Arrays.asList(new String[]{STACK_NAME_PROPERTY_ID, STACK_VERSION_PROPERTY_ID}));
/**
* KerberosDescriptorFactory used to create KerberosDescriptor instances
*/
@Inject
private static KerberosDescriptorFactory kerberosDescriptorFactory;
/**
* KerberosServiceDescriptorFactory used to create KerberosServiceDescriptor instances
*/
@Inject
private static KerberosServiceDescriptorFactory kerberosServiceDescriptorFactory;
protected StackVersionResourceProvider(Set<String> propertyIds,
Map<Type, String> keyPropertyIds,
AmbariManagementController managementController) {
super(propertyIds, keyPropertyIds, managementController);
}
@Override
public Set<Resource> getResources(Request request, Predicate predicate)
throws SystemException, UnsupportedPropertyException,
NoSuchResourceException, NoSuchParentResourceException {
final Set<StackVersionRequest> requests = new HashSet<>();
if (predicate == null) {
requests.add(getRequest(Collections.<String, Object>emptyMap()));
} else {
for (Map<String, Object> propertyMap : getPropertyMaps(predicate)) {
requests.add(getRequest(propertyMap));
}
}
Set<String> requestedIds = getRequestPropertyIds(request, predicate);
Set<StackVersionResponse> responses = getResources(new Command<Set<StackVersionResponse>>() {
@Override
public Set<StackVersionResponse> invoke() throws AmbariException {
return getManagementController().getStackVersions(requests);
}
});
Set<Resource> resources = new HashSet<>();
for (StackVersionResponse response : responses) {
Resource resource = new ResourceImpl(Resource.Type.StackVersion);
setResourceProperty(resource, STACK_NAME_PROPERTY_ID,
response.getStackName(), requestedIds);
setResourceProperty(resource, STACK_VERSION_PROPERTY_ID,
response.getStackVersion(), requestedIds);
setResourceProperty(resource, STACK_MIN_VERSION_PROPERTY_ID,
response.getMinUpgradeVersion(), requestedIds);
setResourceProperty(resource, STACK_ACTIVE_PROPERTY_ID,
response.isActive(), requestedIds);
setResourceProperty(resource, STACK_VALID_PROPERTY_ID,
response.isValid(), requestedIds);
setResourceProperty(resource, STACK_ERROR_SET,
response.getErrors(), requestedIds);
setResourceProperty(resource, STACK_PARENT_PROPERTY_ID,
response.getParentVersion(), requestedIds);
setResourceProperty(resource, STACK_CONFIG_TYPES,
response.getConfigTypes(), requestedIds);
setResourceProperty(resource, UPGRADE_PACKS_PROPERTY_ID,
response.getUpgradePacks(), requestedIds);
setResourceProperty(resource, STACK_MIN_JDK,
response.getMinJdk(), requestedIds);
setResourceProperty(resource, STACK_MAX_JDK,
response.getMaxJdk(), requestedIds);
resources.add(resource);
}
return resources;
}
/**
* Given data from a StackVersionResponse build a complete Kerberos descriptor hierarchy.
*
* @param stackVersionResponse the StackVersionResponse instance containing the details of the
* stack and the relevant Kerberos descriptor files
* @return a KerberosDescriptor containing the complete hierarchy for the stack
* @throws IOException if the specified File is not found or not a readable
* @throws AmbariException if the specified File does not contain valid JSON-encoded Kerberos
* descriptor
*/
private KerberosDescriptor buildKerberosDescriptor(StackVersionResponse stackVersionResponse)
throws IOException {
KerberosDescriptor kerberosDescriptor = null;
// Process the stack-level Kerberos descriptor file
File stackKerberosDescriptorFile = stackVersionResponse.getStackKerberosDescriptorFile();
if (stackKerberosDescriptorFile != null) {
kerberosDescriptor = kerberosDescriptorFactory.createInstance(stackKerberosDescriptorFile);
}
// Process the service-level Kerberos descriptor files
Collection<File> serviceDescriptorFiles = stackVersionResponse.getServiceKerberosDescriptorFiles();
if ((serviceDescriptorFiles != null) && !serviceDescriptorFiles.isEmpty()) {
// Make sure kerberosDescriptor is not null. This will be the case if there is no stack-level
// Kerberos descriptor file.
if (kerberosDescriptor == null) {
kerberosDescriptor = new KerberosDescriptor();
}
// For each service-level Kerberos descriptor file, parse into an array of KerberosServiceDescriptors
// and then append each to the KerberosDescriptor hierarchy.
for (File file : serviceDescriptorFiles) {
KerberosServiceDescriptor[] serviceDescriptors = kerberosServiceDescriptorFactory.createInstances(file);
if (serviceDescriptors != null) {
for (KerberosServiceDescriptor serviceDescriptor : serviceDescriptors) {
kerberosDescriptor.putService(serviceDescriptor);
}
}
}
}
return kerberosDescriptor;
}
private StackVersionRequest getRequest(Map<String, Object> properties) {
return new StackVersionRequest(
(String) properties.get(STACK_NAME_PROPERTY_ID),
(String) properties.get(STACK_VERSION_PROPERTY_ID));
}
@Override
protected Set<String> getPKPropertyIds() {
return pkPropertyIds;
}
}