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/*-
* ============LICENSE_START=======================================================
* dcae-inventory
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.dcae.inventory.clients;
import org.onap.dcae.inventory.InventoryConfiguration;
import org.onap.dcae.inventory.exceptions.DatabusControllerClientException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import javax.ws.rs.client.Client;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.UriBuilder;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.util.Map;
/**
* Created by mhwang on 5/25/16.
*/
public class DatabusControllerClient {
private final Client client;
private final InventoryConfiguration.DatabusControllerConnectionConfiguration connectionConfiguration;
public DatabusControllerClient(Client client, InventoryConfiguration.DatabusControllerConnectionConfiguration connectionConfiguration) {
this.client = client;
this.connectionConfiguration = connectionConfiguration;
}
public URI constructResourceURI(String resourcePath) {
// Make sure that the resource path has a "/" because the UriBuilder sucks and doesn't do it for us.
if (resourcePath.charAt(0) != '/') {
resourcePath = (new StringBuilder("/")).append(resourcePath).toString();
}
return UriBuilder.fromPath(resourcePath).scheme("https").host(this.connectionConfiguration.getHost())
.port(this.connectionConfiguration.getPort()).build();
}
// TODO: Actually model the JSON objects so that they can be returned to be used for providing useful information
// and thus change this to a "get".
public boolean isExists(String componentId) throws DatabusControllerClientException {
URI uri = constructResourceURI(componentId);
Response response = client.target(uri).request(MediaType.APPLICATION_JSON_TYPE)
.header("Content-Type", "application/json").get();
if (response.getStatus() == 200) {
ObjectMapper om = new ObjectMapper();
try {
Map<String, Object> entity = om.readValue((InputStream) response.getEntity(),
new TypeReference<Map<String, Object>>() {});
return (entity != null && entity.size() > 0) ? true : false;
} catch (IOException e) {
throw new DatabusControllerClientException(e);
}
} else if (response.getStatus() == 401) {
// You probably got this because your mech id/password is not authorized
throw new DatabusControllerClientException(String.format("Check the mech id/password: %d", response.getStatus()));
} else if (response.getStatus() == 403) {
throw new DatabusControllerClientException(String.format("Credentials not authorized: %d", response.getStatus()));
}
throw new DatabusControllerClientException(String.format("Unexpected error from databus controller: %d",
response.getStatus()));
}
}
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