Read and check wekan configuration from ENV vars

src/main/java/cz/brmlab/wm/wekan/WekanConfiguration.java

@@ -0,0 +1,68 @@
+package cz.brmlab.wm.wekan;
+
+import cz.brmlab.wm.utils.Exceptions.BrmException;
+import cz.brmlab.wm.utils.Exceptions.ExitCode;
+import lombok.Getter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class WekanConfiguration {
+
+    /**
+     * Class logger
+     */
+    private static final Logger LOG = LoggerFactory.getLogger(WekanConfiguration.class);
+
+    //ENV variables for wekan
+    private static final String WEKAN_URL = "WEKAN_URL";
+    private static final String WEKAN_USER = "WEKAN_USER";
+    private static final String WEKAN_PASSWORD = "WEKAN_PASSWORD";
+    private static final String WEKAN_TARGET_BOARD = "WEKAN_TARGET_BOARD";
+    private static final String WEKAN_TARGET_LIST = "WEKAN_TARGET_LIST";
+
+    //List of wekan ENV vars
+    private static final List<String> properties = new ArrayList<>(Arrays.asList(WEKAN_URL, WEKAN_USER, WEKAN_PASSWORD, WEKAN_TARGET_BOARD, WEKAN_TARGET_LIST));
+
+    /**
+     * Configuration for wekan. Taken from the container ENV variables.
+     *
+     * @throws BrmException if some of the properties is missing in ENV variables.
+     */
+    public WekanConfiguration() throws BrmException {
+        for (String prop : properties) {
+            checkProp(prop);
+        }
+        this.wekanUrl = System.getenv(WEKAN_URL);
+        this.wekanUser = System.getenv(WEKAN_USER);
+        this.wekanPassword = System.getenv(WEKAN_PASSWORD);
+        this.wekanBoard = System.getenv(WEKAN_TARGET_BOARD);
+        this.wekanList = System.getenv(WEKAN_TARGET_LIST);
+    }
+
+    @Getter
+    private String wekanUrl;
+
+    @Getter
+    private String wekanUser;
+
+    @Getter
+    private String wekanPassword;
+
+    @Getter
+    private String wekanBoard;
+
+    @Getter
+    private String wekanList;
+
+    private void checkProp(String prop) throws BrmException {
+        if (System.getenv(prop) == null) {
+            String message = ExitCode.CONFIGURATION_MISSING.getReason() + prop;
+            LOG.error(message, ExitCode.CONFIGURATION_MISSING);
+            throw new BrmException(message, ExitCode.CONFIGURATION_MISSING);
+        }
+    }
+}