com.francetelecom.clara.cloud.commons.JasyptPrerequisites.java Source code

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Here is the source code for com.francetelecom.clara.cloud.commons.JasyptPrerequisites.java

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/**
 * Copyright (C) 2015 Orange
 * 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 com.francetelecom.clara.cloud.commons;

import javax.naming.InitialContext;
import javax.naming.NamingException;

import org.apache.commons.lang3.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * JasyptPrerequisites check jasypt pre-requisites Last update :
 * $LastChangedDate$ Last author
 * : $Author$
 * 
 * @version : $Revision$
 */
public class JasyptPrerequisites {

    private static final Logger logger = LoggerFactory.getLogger(JasyptPrerequisites.class);

    public JasyptPrerequisites(String passPhraseEnvName, String passPhraseJndiName) {
        logger.debug("Validating jasypt prerequisite for env:'{}' or jndi:'{}'", passPhraseEnvName,
                passPhraseJndiName);
        assertJasyptPrerequisites(passPhraseEnvName, passPhraseJndiName);
    }

    private void assertJasyptPrerequisites(String passPhraseEnvName, String passPhraseJndiName) {
        Validate.notEmpty(passPhraseEnvName, "passPhraseEnvName cannot be empty, neither null");
        String passPhrase = System.getenv(passPhraseEnvName);

        if (!isPassPhraseCorrect(passPhrase)) {
            try {
                InitialContext ctx = new InitialContext();
                String jndiValue = (String) ctx.lookup(passPhraseJndiName);
                passPhrase = jndiValue;
            } catch (NamingException e) {
                logger.info("No Jndi jasypt secret named " + passPhraseJndiName, e);
            }
        }

        if (!isPassPhraseCorrect(passPhrase)) {
            throw new TechnicalException(
                    "Jasypt require pass phrase into environment or jndi variables : '" + passPhraseEnvName + "'");
        }
    }

    private boolean isPassPhraseCorrect(String passPhrase) {
        if (passPhrase == null || passPhrase.length() == 0) {
            return false;
        }
        return true;
    }
}