/**
* 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.api.resources;
import org.apache.ambari.server.controller.utilities.ClusterControllerHelper;
import org.apache.ambari.server.api.services.Request;
import org.apache.ambari.server.controller.spi.Resource;
import org.apache.ambari.server.controller.spi.Schema;
import org.apache.ambari.server.api.util.TreeNode;
import java.util.*;
/**
* Component resource definition.
*/
public class ComponentResourceDefinition extends BaseResourceDefinition {
/**
* Constructor.
*/
public ComponentResourceDefinition() {
super(Resource.Type.Component);
}
@Override
public String getPluralName() {
return "components";
}
@Override
public String getSingularName() {
return "component";
}
@Override
public Set<SubResourceDefinition> getSubResourceDefinitions() {
return Collections.singleton(new SubResourceDefinition(
Resource.Type.HostComponent, Collections.singleton(Resource.Type.Host), true));
}
@Override
public List<PostProcessor> getPostProcessors() {
List<PostProcessor> listProcessors = super.getPostProcessors();
listProcessors.add(new ComponentHrefProcessor());
return listProcessors;
}
/**
* Base resource processor which generates href's. This is called by the
* {@link org.apache.ambari.server.api.services.ResultPostProcessor} during post processing of a result.
*/
private class ComponentHrefProcessor extends BaseHrefPostProcessor {
@Override
public void process(Request request, TreeNode<Resource> resultNode, String href) {
TreeNode<Resource> parent = resultNode.getParent();
if (parent.getParent() != null && parent.getParent().getObject().getType() == Resource.Type.HostComponent) {
Resource r = resultNode.getObject();
Schema schema = ClusterControllerHelper.getClusterController().getSchema(r.getType());
Object serviceId = r.getPropertyValue(schema.getKeyPropertyId(Resource.Type.Service));
Object componentId = r.getPropertyValue(schema.getKeyPropertyId(r.getType()));
href = href.substring(0, href.indexOf("/hosts/") + 1) +
"services/" + serviceId + "/components/" + componentId;
resultNode.setProperty("href", href);
} else {
super.process(request, resultNode, href);
}
}
}
}