ClientKeyStore.java

package se.bjurr.prnfb.http;

import static com.google.common.base.Optional.fromNullable;

import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.KeyStoreException;

import se.bjurr.prnfb.settings.PrnfbSettingsData;

import com.google.common.base.Optional;

/**
 * A keystore based on the definition from the application properties.<br>
 * <br>
 * Inspired by:<br>
 * Philip Dodds (pdodds) https://github.com/pdodds
 */
public class ClientKeyStore {

  private KeyStore keyStore = null;
  private char[] password = null;

  public ClientKeyStore(PrnfbSettingsData settings) {
    if (settings.getKeyStore().isPresent()) {
      File keyStoreFile = new File(settings.getKeyStore().get());
      try {
        this.keyStore = getKeyStore(settings.getKeyStoreType());

        if (settings.getKeyStorePassword().isPresent()) {
          this.password = settings.getKeyStorePassword().get().toCharArray();
        }

        this.keyStore.load(new FileInputStream(keyStoreFile), this.password);
      } catch (Exception e) {
        throw new RuntimeException(
            "Unable to build keystore from " + keyStoreFile.getAbsolutePath(), e);
      }
    }
  }

  public Optional<KeyStore> getKeyStore() {
    return fromNullable(this.keyStore);
  }

  public char[] getPassword() {
    return this.password;
  }

  private KeyStore getKeyStore(String keyStoreType) throws KeyStoreException {
    if (keyStoreType != null) {
      return KeyStore.getInstance(keyStoreType);
    } else {
      return KeyStore.getInstance(KeyStore.getDefaultType());
    }
  }
}