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/*
* Copyright 2017 Huawei Technologies Co., Ltd.
*
* 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.
*/
package org.onap.cli.fw.input.cache;
import static org.onap.cli.fw.conf.OnapCommandConstants.DATA_DIRECTORY;
import static org.onap.cli.fw.conf.OnapCommandConstants.DATA_PATH_JSON_PATTERN;
import static org.onap.cli.fw.conf.OnapCommandConstants.DATA_PATH_PROFILE_JSON;
import static org.onap.cli.fw.conf.OnapCommandConstants.DATA_PATH_PROFILE_JSON_PATTERN;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.onap.cli.fw.conf.OnapCommandConstants;
import org.onap.cli.fw.error.OnapCommandLoadProfileFailed;
import org.onap.cli.fw.error.OnapCommandPersistProfileFailed;
import org.onap.cli.fw.utils.OnapCommandDiscoveryUtils;
import org.springframework.core.io.Resource;
import com.fasterxml.jackson.databind.ObjectMapper;
public class OnapCommandParameterCache {
private Map<String, Map<String, String>> paramCache = new HashMap<>();
private static OnapCommandParameterCache single = null;
private String profileName = OnapCommandConstants.PARAM_CACHE_FILE_NAME;
private OnapCommandParameterCache() {
}
public static OnapCommandParameterCache getInstance() {
if (single == null) {
single = new OnapCommandParameterCache();
}
single.load();
return single;
}
public void includeProfile(String profile) {
this.load(profile, true);
}
public void excludeProfile(String profile) {
this.load(profile, false);
}
public void add(String productVersion, String paramName, String paramValue) {
if (!paramCache.containsKey(productVersion)) {
paramCache.put(productVersion, new HashMap<String, String>());
}
paramCache.get(productVersion).put(paramName, paramValue);
this.persist();
}
public void remove(String productVersion, String paramName) {
if (paramCache.containsKey(productVersion)) {
if (paramCache.get(productVersion).containsKey(paramName)) {
paramCache.get(productVersion).remove(paramName);
}
}
this.persist();
}
public Map<String, String> getParams(String productVersion) {
if (paramCache.containsKey(productVersion)) {
return this.paramCache.get(productVersion);
} else {
return new HashMap<String, String>();
}
}
private void persist() {
List<OnapCommandParamEntity> params = new ArrayList<>();
for (String p: this.paramCache.keySet()) {
for (String name: this.paramCache.get(p).keySet()) {
OnapCommandParamEntity param = new OnapCommandParamEntity();
param.setProduct(p);
param.setName(name);
param.setValue(this.paramCache.get(p).get(name));
params.add(param);
}
}
try {
this.persistProfile(params, this.profileName);
} catch (OnapCommandPersistProfileFailed e) {
throw new RuntimeException(e); // NOSONAR
}
}
private void load() {
this.load(this.profileName, true);
}
private void load(String profileName, boolean include) {
List<OnapCommandParamEntity> params= new ArrayList<>();
try {
params = this.loadParamFromCache(profileName);
} catch (OnapCommandLoadProfileFailed e) {
throw new RuntimeException(e); // NOSONAR
}
for (OnapCommandParamEntity p : params) {
if (include) {
this.add(p.getProduct(), p.getName(), p.getValue());
} else {
this.remove(p.getProduct(), p.getName());
}
}
}
public void setProfile(String profileName) {
this.profileName = profileName;
this.paramCache.clear();
this.load();
}
private void persistProfile(List<OnapCommandParamEntity> params, String profileName) throws OnapCommandPersistProfileFailed {
if (params != null) {
try {
Resource[] resources = OnapCommandDiscoveryUtils.findResources(DATA_DIRECTORY);
if (resources != null && resources.length == 1) {
String path = resources[0].getURI().getPath();
File file = new File(path + File.separator + profileName + DATA_PATH_PROFILE_JSON);
ObjectMapper mapper = new ObjectMapper();
mapper.writerWithDefaultPrettyPrinter().writeValue(file, params);
}
} catch (IOException e1) {
throw new OnapCommandPersistProfileFailed(e1);
}
}
}
private List<OnapCommandParamEntity> loadParamFromCache(String profileName) throws OnapCommandLoadProfileFailed {
List<OnapCommandParamEntity> params = new ArrayList<>();
try {
Resource resource = OnapCommandDiscoveryUtils.findResource(profileName + DATA_PATH_PROFILE_JSON,
DATA_PATH_JSON_PATTERN);
if (resource != null) {
File file = new File(resource.getURI().getPath());
ObjectMapper mapper = new ObjectMapper();
OnapCommandParamEntity[] list = mapper.readValue(file, OnapCommandParamEntity[].class);
params.addAll(Arrays.asList(list));
}
} catch (IOException e) {
throw new OnapCommandLoadProfileFailed(e);
}
return params;
}
public List<String> getProfiles() {
List<String> profiles = new ArrayList<>();
Resource[] resources;
try {
resources = OnapCommandDiscoveryUtils.findResources(DATA_PATH_PROFILE_JSON_PATTERN);
} catch (IOException e) {
throw new RuntimeException(e); // NOSONAR
}
if (resources != null && resources.length > 0) {
for (Resource res : resources) {
String profile = res.getFilename().substring(0, res.getFilename().indexOf(DATA_PATH_PROFILE_JSON));
profiles.add(profile);
}
}
return profiles;
}
}
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