de.fraunhofer.iese.ind2uce.pep.modifiermethods.PasswordModifierMethod Maven / Gradle / Ivy

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/*-
 * =================================LICENSE_START=================================
 * IND2UCE
 * %%
 * Copyright (C) 2016 Fraunhofer IESE (www.iese.fraunhofer.de)
 * %%
 * 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 de.fraunhofer.iese.ind2uce.pep.modifiermethods;

import com.jayway.jsonpath.DocumentContext;
import de.fraunhofer.iese.ind2uce.api.policy.parameter.ParameterList;
import de.fraunhofer.iese.ind2uce.pep.common.ModifierMethod;
import de.fraunhofer.iese.ind2uce.registry.ActionDescription;

/***
 * This a default Modifier method with PEP sdk which provides password
 * encryption where event parameter is either a Json Object or string (primitive
 * type)
 */
public class PasswordModifierMethod implements ModifierMethod {

  @Override
  public DocumentContext doModification(DocumentContext documentContext, String expression, ParameterList modifierMethodParameterList) {
    return this.password(documentContext, expression);
  }

  @Override
  public Object doModification(Object currentObject, ParameterList modifierMethodParameterList) {
    if (currentObject instanceof String) {
      return "********";
    }
    return null;
  }

  @Override
  public String getDisplayName() {
    return "password";
  }

  @ActionDescription(description = "Replaces the string by asterisks", pepSupportedType = String.class)
  public DocumentContext password(DocumentContext documentContext, String expression) {
    return documentContext.set(expression, "********");
  }

}