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/*
* ============LICENSE_START==========================================
* ONAP Portal SDK
* ===================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ===================================================================
*
* Unless otherwise specified, all software contained herein is licensed
* under the Apache License, Version 2.0 (the "License");
* you may not use this software 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.
*
* Unless otherwise specified, all documentation contained herein is licensed
* under the Creative Commons License, Attribution 4.0 Intl. (the "License");
* you may not use this documentation except in compliance with the License.
* You may obtain a copy of the License at
*
* https://creativecommons.org/licenses/by/4.0/
*
* Unless required by applicable law or agreed to in writing, documentation
* 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============================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.portalsdk.core;
/**
* <p>
* Title: FusionObject
* </p>
*
* <p>
* Description: This interface is implemented by all top-level support classes
* of each package in FUSION. This allows all top-level support classes to have
* some commonality for easier maintenance.
* </p>
*/
public interface FusionObject {
/**
* Inner class provides static constants to any class that implements the
* interface.
*/
public class Parameters {
private Parameters() {
// Static content only
}
// HashMap parameters passed to the Service and Dao tiers
public static final String PARAM_USERID = "userId";
public static final String PARAM_HTTP_REQUEST = "request";
public static final String PARAM_FILTERS = "filters";
public static final String PARAM_CLIENT_DEVICE = "client_device";
// Request parameters passed in the Web tier
public static final String REQUEST_PARAM_DISPLAY_SUCCESS_MESSAGE = "display_success_message";
}
/**
* Inner class provides static utility functions to any class that implements
* the interface.
*/
public class Utilities {
private Utilities() {
// Static content only
}
/**
* nvl - replaces a string value with an empty string if null.
*
* @param s
* String - the string value that needs to be checked
* @return String - returns the original string value if not null. Otherwise an
* empty string ("") is returned.
*/
public static String nvl(String s) {
return s == null ? "" : s;
}
/**
* nvl - replaces a string value with a default value if null or empty.
*
* @param s
* String - the string value that needs to be checked
* @param sDefault
* String - the default value
* @return String - returns the original string value if not null nor empty.
* Otherwise the default value is returned.
*/
public static String nvl(String s, String sDefault) {
return "".equals(nvl(s)) ? sDefault : s;
}
/**
* Tests the specified string for nullity.
*
* @param a
* String to test for nullity.
* @return True if the specified string is null, empty or the 4-character
* sequence "null" (ignoring case); otherwise false.
*/
public static boolean isNull(String a) {
return a == null || a.length() == 0 || a.equalsIgnoreCase("null");
}
}
}
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