CODEWITHSUNDEEP
javaapache-commons-config
Rasheed
Rasheed

Reputation: 1

Apache Commons Configuration

I'm trying to read a Configuration file using Apache Commons, modify some properties and then save the config file.

This is the code snippet

Configurations propConfig= new Configurations();
try {
    FileBasedConfigurationBuilder<PropertiesConfiguration> builder=
    propConfig.propertiesBuilder(pathToPropFile);
    propConfig.setProperty("dtv.primary.db.url","jdbc\\:oracle\\:thin\\:@localhost\\:1521\\:db");
    builder.save();
    return 0;
} catch (ConfigurationException e) {
    e.printStackTrace();
    return -1;
}

pom.xml snippet

        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-configuration2</artifactId>
            <version>2.7</version>
        </dependency>
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.4</version>
        </dependency>

The problem is that the string "jdbc\\:oracle\\:thin\\:@localhost\\:1521\\:db" is not properly escaped on config file. All the additional backslashes are present in config file. I've read all the documentation, it seems the one above, is the correct way for escaping special characters.

Apache Documentation

If i use the Java built in Properties Class, the string "jdbc:oracle:thin:@localhost:1521:db" is automatically escaped once store (jdbc\:oracle\:thin\:@localhost\:1521\:db), but i have to use Apache Configurations otherwise i lose all the comments in the config file.

Any suggestions?

Upvotes: 0

Views: 722

Answers (1)

mvmn
mvmn

Reputation: 4067

In .properties file you have to escape both \ and :. Thus what you should have in the .properties file is jdbc\\\:oracle\\\:thin\\\:@localhost\\\:1521\\\:db).

In order to achieve that you can convert PropertiesConfiguration to java.util.Properties and save those, and only use commons configuration when reading.

You can use ConfigurationConverter to do that.

Upvotes: 2

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