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/*-
* ============LICENSE_START=======================================================
* aai
* ================================================================================
* Copyright (C) 2017-2018 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.policy.aai;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class AaiNqResponseWrapper implements Serializable {
private static final long serialVersionUID = 8411407444051746101L;
private static final Logger logger = LoggerFactory.getLogger(AaiNqResponseWrapper.class);
private static final Pattern VF_MODULE_NAME_PAT = Pattern.compile("(.*_)(\\d+)");
private UUID requestId;
private AaiNqResponse aaiNqResponse;
public AaiNqResponseWrapper() {}
public AaiNqResponseWrapper(UUID requestId, AaiNqResponse aaiNqResponse) {
this.requestId = requestId;
this.aaiNqResponse = aaiNqResponse;
}
public UUID getRequestId() {
return requestId;
}
public void setRequestId(UUID requestId) {
this.requestId = requestId;
}
public AaiNqResponse getAaiNqResponse() {
return aaiNqResponse;
}
public void setAaiNqResponse(AaiNqResponse aaiNqResponse) {
this.aaiNqResponse = aaiNqResponse;
}
/**
* Counts the number of VF modules, if any, in the response.
*
* @return the number of VF modules, or {@code 0} if there are none
*/
public int countVfModules() {
return getVfModuleItems(false).size();
}
/**
* Generates the name for the next VF module.
*
* @return the name of the next VF module, or {@code null} if the name could not be
* generated (i.e., because the response has no matching VF module names on
* which to model it)
*/
public String genVfModuleName() {
/*
* Loop through the VF modules, extracting the name prefix and the largest number
* suffix
*/
String prefix = null;
int maxSuffix = -1;
for (AaiNqInventoryResponseItem item : getVfModuleItems(false)) {
String name = item.getVfModule().getVfModuleName();
Matcher matcher = VF_MODULE_NAME_PAT.matcher(name);
if (matcher.matches()) {
int suffix = Integer.parseInt(matcher.group(2));
if (suffix > maxSuffix) {
maxSuffix = suffix;
prefix = matcher.group(1);
}
}
}
++maxSuffix;
return (prefix == null ? null : prefix + maxSuffix);
}
/**
* Gets a list of VF modules. If the non-base VF modules are requested, then only
* those whose names match the name pattern, {@link #VF_MODULE_NAME_PAT}, are
* returned.
*
* @param wantBaseModule {@code true} if the the base VF module(s) is desired,
* {@code false} otherwise
* @return the list of VF module items
*/
public List<AaiNqInventoryResponseItem> getVfModuleItems(boolean wantBaseModule) {
// get the list of items
List<AaiNqInventoryResponseItem> itemList;
try {
itemList = aaiNqResponse.getInventoryResponseItems().get(0).getItems().getInventoryResponseItems().get(0)
.getItems().getInventoryResponseItems();
} catch (NullPointerException | IndexOutOfBoundsException e) {
logger.debug("no VF modules in AAI response", e);
return Collections.emptyList();
}
if (itemList == null) {
return Collections.emptyList();
}
/*
* Walk the items looking for VF modules, allocating the list only when an item is
* found.
*/
List<AaiNqInventoryResponseItem> vfModuleItems = new ArrayList<>(itemList.size());
for (AaiNqInventoryResponseItem inventoryResponseItem : itemList) {
AaiNqVfModule vfmod = inventoryResponseItem.getVfModule();
if (vfmod == null) {
continue;
}
if (vfmod.getIsBaseVfModule() == wantBaseModule
&& (wantBaseModule || VF_MODULE_NAME_PAT.matcher(vfmod.getVfModuleName()).matches())) {
vfModuleItems.add(inventoryResponseItem);
}
}
return vfModuleItems;
}
}
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