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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2021 Nordix Foundation
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.cps.ncmp.api.impl.operation;
import com.fasterxml.jackson.annotation.JsonValue;
import lombok.Getter;
import org.jetbrains.annotations.NotNull;
import org.onap.cps.ncmp.api.impl.client.DmiRestClient;
import org.springframework.http.HttpHeaders;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
@Component
public class DmiOperations {
@Getter
public enum PassThroughEnum {
OPERATIONAL("/ncmp-datastore:passthrough-operational/"),
RUNNING("/ncmp-datastore:passthrough-running/");
private String value;
PassThroughEnum(final String value) {
this.value = value;
}
@Override
@JsonValue
public String toString() {
return String.valueOf(value);
}
}
private DmiRestClient dmiRestClient;
private static final String PARENT_CM_HANDLE_URI =
"/v1/ch/{cmHandle}/data/ds";
private final int indexCmHandleInUri;
/**
* Constructor for {@code DmiOperations}. This method also manipulates url properties.
*
* @param dmiRestClient {@code DmiRestClient}
*/
public DmiOperations(final DmiRestClient dmiRestClient) {
this.dmiRestClient = dmiRestClient;
indexCmHandleInUri = PARENT_CM_HANDLE_URI.indexOf("{cmHandle}");
}
/**
* This method fetches the resource data from operational data store for given cm handle
* identifier on given resource using dmi client.
*
* @param dmiBasePath dmi base path
* @param cmHandle network resource identifier
* @param resourceId resource identifier
* @param fieldsQuery fields query
* @param depthQuery depth query
* @param acceptParam accept parameter
* @param jsonBody json body for put operation
* @return {@code ResponseEntity} response entity
*/
public ResponseEntity<Object> getResouceDataOperationalFromDmi(final String dmiBasePath,
final String cmHandle,
final String resourceId,
final String fieldsQuery,
final Integer depthQuery,
final String acceptParam,
final String jsonBody) {
final var builder = getDmiResourceDataUrl(dmiBasePath, cmHandle, resourceId,
fieldsQuery, depthQuery, PassThroughEnum.OPERATIONAL);
final var httpHeaders = prepareHeader(acceptParam);
return dmiRestClient.putOperationWithJsonData(builder.toString(), jsonBody, httpHeaders);
}
/**
* This method fetches the resource data from pass-through running data store for given cm handle
* identifier on given resource using dmi client.
*
* @param dmiBasePath dmi base path
* @param cmHandle network resource identifier
* @param resourceId resource identifier
* @param fieldsQuery fields query
* @param depthQuery depth query
* @param acceptParam accept parameter
* @param jsonBody json body for put operation
* @return {@code ResponseEntity} response entity
*/
public ResponseEntity<Object> getResouceDataPassThroughRunningFromDmi(final String dmiBasePath,
final String cmHandle,
final String resourceId,
final String fieldsQuery,
final Integer depthQuery,
final String acceptParam,
final String jsonBody) {
final var builder = getDmiResourceDataUrl(dmiBasePath, cmHandle, resourceId,
fieldsQuery, depthQuery, PassThroughEnum.RUNNING);
final var httpHeaders = prepareHeader(acceptParam);
return dmiRestClient.putOperationWithJsonData(builder.toString(), jsonBody, httpHeaders);
}
@NotNull
private StringBuilder getDmiResourceDataUrl(final String dmiBasePath,
final String cmHandle,
final String resourceId,
final String fieldsQuery,
final Integer depthQuery,
final PassThroughEnum passThrough) {
final var builder = new StringBuilder(PARENT_CM_HANDLE_URI.replace("{cmHandle}", cmHandle));
builder.append(passThrough.getValue());
builder.insert(builder.length(), resourceId);
appendFieldsAndDepth(fieldsQuery, depthQuery, builder);
builder.insert(0, dmiBasePath);
return builder;
}
private void appendFieldsAndDepth(final String fieldsQuery, final Integer depthQuery, final StringBuilder builder) {
final var doesFieldExists = (fieldsQuery != null && !fieldsQuery.isEmpty());
if (doesFieldExists) {
builder.append("?").append("fields=").append(fieldsQuery);
}
if (depthQuery != null) {
if (!doesFieldExists) {
builder.append("?");
} else {
builder.append("&");
}
builder.append("depth=").append(depthQuery);
}
}
private HttpHeaders prepareHeader(final String acceptParam) {
final var httpHeaders = new HttpHeaders();
if (acceptParam != null && !acceptParam.isEmpty()) {
httpHeaders.set(HttpHeaders.ACCEPT, acceptParam);
}
return httpHeaders;
}
}
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