blob: c00bfa1c2bc61dda6833c7c4b2cff6de07598c45 (
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
|
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Ericsson. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.distribution.reception.handling;
import java.util.ArrayList;
import java.util.Collection;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
import org.onap.policy.common.parameters.ParameterService;
import org.onap.policy.distribution.forwarding.ArtifactForwarder;
import org.onap.policy.distribution.forwarding.ArtifactForwardingException;
import org.onap.policy.distribution.model.PolicyInput;
import org.onap.policy.distribution.reception.decoding.PluginInitializationException;
import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
import org.onap.policy.distribution.reception.parameters.ReceptionHandlerParameters;
import org.onap.sdc.api.notification.IArtifactInfo;
/**
* Base implementation of {@link ReceptionHandler}. All reception handlers should extend this base class by implementing
* the {@link #initializeReception(String)} method to perform the specific initialization required to receive inputs and
* by invoking {@link #inputReceived(PolicyInput)} when the reception handler receives input.
*/
public abstract class AbstractReceptionHandler implements ReceptionHandler {
private static final Logger LOGGER = FlexLogger.getLogger(AbstractReceptionHandler.class);
private PluginHandler pluginHandler;
/**
* {@inheritDoc}.
*/
@Override
public void initialize(final String parameterGroupName) throws PluginInitializationException {
final ReceptionHandlerParameters receptionHandlerParameters = ParameterService.get(parameterGroupName);
pluginHandler = new PluginHandler(receptionHandlerParameters.getPluginHandlerParameters().getName());
initializeReception(receptionHandlerParameters.getReceptionHandlerConfigurationName());
}
/**
* Sub classes must implement this method to perform the specific initialization required to receive inputs, for
* example setting up subscriptions.
*
* @param parameterGroupName the parameter group name
* @throws PluginInitializationException if initialization of reception handler fails
*/
protected abstract void initializeReception(String parameterGroupName) throws PluginInitializationException;
/**
* Handle input that has been received. The given input shall be decoded using the s configured
* for this reception handler and forwarded using the {@link ArtifactForwarder}s configured for this reception
* handler.
*
* @param policyInput the input that has been received
* @throws PolicyDecodingException if an error occurs in decoding a policy from the received input
*/
protected void inputReceived(final PolicyInput policyInput) throws PolicyDecodingException {
for (final ArtifactForwarder policyForwarder : pluginHandler.getArtifactForwarders()) {
try {
policyForwarder.forward(policyInput);
} catch (final ArtifactForwardingException policyForwardingException) {
LOGGER.error("Error when forwarding policies to " + policyForwarder, policyForwardingException);
}
}
}
}
|