aboutsummaryrefslogtreecommitdiffstats
path: root/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/handlers/NcmpPassthroughResourceRequestHandler.java
blob: 64497b95f9853a01950287fe9076e2456b8746f1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
/*
 *  ============LICENSE_START=======================================================
 *  Copyright (C) 2022-2024 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.rest.controller.handlers;

import static org.onap.cps.ncmp.api.impl.operations.DatastoreType.OPERATIONAL;
import static org.onap.cps.ncmp.api.impl.operations.OperationType.READ;

import java.util.Map;
import java.util.UUID;
import java.util.function.Supplier;
import org.onap.cps.ncmp.api.NetworkCmProxyDataService;
import org.onap.cps.ncmp.api.impl.exception.InvalidDatastoreException;
import org.onap.cps.ncmp.api.impl.operations.DatastoreType;
import org.onap.cps.ncmp.api.impl.operations.OperationType;
import org.onap.cps.ncmp.api.models.CmResourceAddress;
import org.onap.cps.ncmp.api.models.DataOperationRequest;
import org.onap.cps.ncmp.rest.exceptions.OperationNotSupportedException;
import org.onap.cps.ncmp.rest.exceptions.PayloadTooLargeException;
import org.onap.cps.ncmp.rest.executor.CpsNcmpTaskExecutor;
import org.onap.cps.ncmp.rest.util.TopicValidator;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;

@Component
public class NcmpPassthroughResourceRequestHandler extends NcmpDatastoreRequestHandler {

    private final NetworkCmProxyDataService networkCmProxyDataService;

    private static final Object noReturn = null;

    private static final int MAXIMUM_CM_HANDLES_PER_OPERATION = 50000;

    private static final String PAYLOAD_TOO_LARGE_TEMPLATE = "Operation '%s' affects too many (%d) cm handles";

    /**
     * Constructor.
     *
     * @param cpsNcmpTaskExecutor        @see org.onap.cps.ncmp.rest.executor.CpsNcmpTaskExecutor
     * @param networkCmProxyDataService  @see org.onap.cps.ncmp.api.NetworkCmProxyDataService
     */
    public NcmpPassthroughResourceRequestHandler(final CpsNcmpTaskExecutor cpsNcmpTaskExecutor,
                                                 final NetworkCmProxyDataService networkCmProxyDataService) {
        super(cpsNcmpTaskExecutor);
        this.networkCmProxyDataService = networkCmProxyDataService;
    }

    /**
     * Executes asynchronous request for group of cm handles to resource data.
     *
     * @param topicParamInQuery        the topic param in query
     * @param dataOperationRequest     data operation request details for resource data
     * @param authorization            contents of Authorization header, or null if not present
     * @return the response entity
     */
    public ResponseEntity<Object> executeRequest(final String topicParamInQuery,
                                                 final DataOperationRequest dataOperationRequest,
                                                 final String authorization) {
        validateDataOperationRequest(topicParamInQuery, dataOperationRequest);
        if (!notificationFeatureEnabled) {
            return ResponseEntity.ok(Map.of("status",
                "Asynchronous request is unavailable as notification feature is currently disabled."));
        }
        return getRequestIdAndSendDataOperationRequestToDmiService(topicParamInQuery, dataOperationRequest,
                authorization);
    }

    @Override
    protected Supplier<Object> getTaskSupplierForGetRequest(final CmResourceAddress cmResourceAddress,
                                                            final String optionsParamInQuery,
                                                            final String topicParamInQuery,
                                                            final String requestId,
                                                            final boolean includeDescendants,
                                                            final String authorization) {

        return () -> networkCmProxyDataService.getResourceDataForCmHandle(cmResourceAddress, optionsParamInQuery,
            topicParamInQuery, requestId, authorization);
    }

    private ResponseEntity<Object> getRequestIdAndSendDataOperationRequestToDmiService(
            final String topicParamInQuery,
            final DataOperationRequest dataOperationRequest,
            final String authorization) {
        final String requestId = UUID.randomUUID().toString();
        cpsNcmpTaskExecutor.executeTask(
            getTaskSupplierForDataOperationRequest(topicParamInQuery, dataOperationRequest, requestId, authorization),
            timeOutInMilliSeconds);
        return ResponseEntity.ok(Map.of("requestId", requestId));
    }

    private void validateDataOperationRequest(final String topicParamInQuery,
                                              final DataOperationRequest dataOperationRequest) {
        TopicValidator.validateTopicName(topicParamInQuery);
        dataOperationRequest.getDataOperationDefinitions().forEach(dataOperationDetail -> {
            if (OperationType.fromOperationName(dataOperationDetail.getOperation()) != READ) {
                throw new OperationNotSupportedException(
                    dataOperationDetail.getOperation() + " operation not yet supported");
            }
            if (DatastoreType.fromDatastoreName(dataOperationDetail.getDatastore()) == OPERATIONAL) {
                throw new InvalidDatastoreException(dataOperationDetail.getDatastore()
                    + " datastore is not supported");
            }
            if (dataOperationDetail.getCmHandleIds().size() > MAXIMUM_CM_HANDLES_PER_OPERATION) {
                final String errorMessage = String.format(PAYLOAD_TOO_LARGE_TEMPLATE,
                    dataOperationDetail.getOperationId(),
                    dataOperationDetail.getCmHandleIds().size());
                throw new PayloadTooLargeException(errorMessage);
            }
        });
    }

    private Supplier<Object> getTaskSupplierForDataOperationRequest(final String topicParamInQuery,
                                                                    final DataOperationRequest dataOperationRequest,
                                                                    final String requestId,
                                                                    final String authorization) {
        return () -> {
            networkCmProxyDataService.executeDataOperationForCmHandles(topicParamInQuery,
                dataOperationRequest,
                requestId,
                authorization);
            return noReturn;
        };
    }

}