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/*-
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright (C) 2019 Nokia 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.dmaap.dbcapi.util;
import javax.servlet.http.HttpServletRequest;
import org.onap.dmaap.dbcapi.model.Dmaap;
import org.onap.dmaap.dbcapi.service.DmaapService;
public class PermissionBuilder {
static final String API_NS_PROP = "ApiNamespace";
static final String DEFAULT_API_NS = "org.onap.dmaap-bc.api";
static final String BOOT_INSTANCE = "boot";
private static final String PERM_SEPARATOR = "|";
private static final String NS_SEPARATOR = ".";
private DmaapConfig dmaapConfig;
private DmaapService dmaapService;
private String instance;
private String apiNamespace;
public PermissionBuilder(DmaapConfig dmaapConfig, DmaapService dmaapService) {
this.dmaapConfig = dmaapConfig;
this.dmaapService = dmaapService;
initFields();
}
public synchronized void updateDmaapInstance() {
if(instance == null || instance.isEmpty() || instance.equalsIgnoreCase(BOOT_INSTANCE)) {
String dmaapName = getDmaapName();
instance = (dmaapName == null || dmaapName.isEmpty()) ? BOOT_INSTANCE : dmaapName;
}
}
public String buildPermission(HttpServletRequest httpRequest) {
StringBuilder sb = new StringBuilder(apiNamespace);
sb.append(NS_SEPARATOR)
.append(getPermissionType(httpRequest.getPathInfo()))
.append(PERM_SEPARATOR)
.append(instance)
.append(PERM_SEPARATOR)
.append(httpRequest.getMethod());
return sb.toString();
}
private void initFields() {
apiNamespace = dmaapConfig.getProperty(API_NS_PROP, DEFAULT_API_NS);
updateDmaapInstance();
}
private String getDmaapName() {
Dmaap dmaap = dmaapService.getDmaap();
return ( dmaap != null ) ? dmaap.getDmaapName() : BOOT_INSTANCE;
}
private String getPermissionType(String pathInfo) {
char pathSeparator = '/';
String[] pathSlices = pathInfo.split(String.valueOf(pathSeparator));
return pathSlices[1];
}
String getInstance() {
return instance;
}
}
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